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1832
resultados
Última actualización
05/07/2025 [08:21:00]
Resumen de: DE102025115327A1
Die Erfindung betrifft eine Batteriezellanordnung, umfassend eine Batteriezelle (1) und einen der Batteriezelle (1) zugeordneten DC/DC-Wandler (2), wobei der DC/DC-Wandler (2) Niedervoltanschlüsse (3) aufweist, die mit Polen der Batteriezelle (1) verbunden sind, wobei der DC/DC-Wandler (2) Hochvoltanschlüsse (4), eine Leistungselektronik (8) und eine Spule mit einem Spulenkern (5) aufweist, wobei die Spule ferner eine Hochvoltwicklung (6) und eine Niedervoltwicklung (7) aufweist, die mit der Leistungselektronik (8) verbunden sind, wobei der DC/DC-Wandler (2) als ein bidirektionaler DC/DC-Wandler (2) ausgebildet ist, wobei der Spulenkern (5) ein Zellgehäuse (5) der Batteriezelle (1) oder eines Batteriemoduls aus mehreren Batteriezellen (1) bildet, wobei die Hochvoltwicklung (6) und die Niedervoltwicklung (7) den Spulenkern (5) und damit das Zellgehäuse (5) wendelförmig umgreifen, wobei die Leistungselektronik (8) außerhalb des Zellgehäuses (5) angeordnet ist, oder das Zellgehäuse (5) und damit der Spulenkern (5) die Hochvoltwicklung (6) und die Niedervoltwicklung (7) umgreift und die Leistungselektronik (8) im Inneren des Zellgehäuses (5) angeordnet ist.
Resumen de: DE102024104355A1
Eine Elektrode für eine Batteriezelle enthält einen Stromkollektor und eine Schicht aus aktivem Material, die auf dem Stromkollektor angeordnet ist. In einigen Beispielen enthält die Schicht aus aktivem Material ein aktives Material, ein leitfähiges Additiv, ein Material mit positivem Temperaturkoeffizienten (PTC) und ein Bindemittel. In anderen Beispielen umfasst die Schicht aus aktivem Material aktives Material mit einer äußeren Beschichtung aus PTC-Material. In anderen Beispielen ist eine PTC-Schicht auf der Schicht aus aktivem Material angeordnet.
Resumen de: DE102024128351A1
Eine Kühlplatte für eine Batterie im Sinne der vorliegenden Offenbarung umfasst einen flachen Oberflächenabschnitt und ein Paar einander gegenüberliegende Seitenflächenabschnitte. In der Kühlplatte für die Batterie ist in mindestens einem der Seitenflächenabschnitte ein Ausschnitt oder eine Durchgangsbohrung ausgebildet. Eine Batterieanordnung der vorliegenden Offenbarung umfasst die Kühlplatte für die Batterie und eine Batterie, die auf dem flachen Oberflächenteil der Kühlplatte für die Batterie angeordnet ist. Die Batterie in der Batterieanordnung umfasst einen Elektrodenstapel, einen Stromabnehmeranschluss und eine Laminierfolie. Die Laminierfolie umfasst eine Schmelzharzschicht, eine Metallschicht und eine Schutzharzschicht sowie einen Verlängerungsabschnitt. Der Verlängerungsabschnitt ist in Richtung des Elektrodenstapels gebogen, und die Kühlplatte für die Batterie ist so angeordnet, dass mindestens einer der Seitenflächenabschnitte der Kühlplatte für die Batterie dem gebogenen Verlängerungsabschnitt gegenüberliegt.
Resumen de: DE102024139098A1
Eine elektrische Vorrichtung kann einen Gehäusekörper, eine Batterieaufnahme, die dazu konfiguriert ist, ein Batteriepack daran angebracht aufzuweisen, einen externen Anschluss, der dazu konfiguriert ist, elektrisch mit dem Batteriepack über die Batterieaufnahme verbunden zu sein, einen linken Handgriff, der an einer linken Oberfläche des Gehäusekörpers angeordnet ist und einen linken Griff aufweist, der dazu konfiguriert ist, durch einen Benutzer gegriffen zu werden, und einen rechten Handgriff aufweisen, der an einer rechten Oberfläche des Gehäusekörpers angeordnet ist und einen rechten Griff aufweist, der dazu konfiguriert ist, durch einen Benutzer gegriffen zu werden. Der linke Handgriff kann dazu konfiguriert sein, relativ zu dem Gehäusekörper zwischen einer linken unteren Position und einer linken oberen Position bewegbar zu sein. Der rechte Handgriff kann dazu konfiguriert sein, relativ zu dem Gehäusekörper zwischen einer rechten unteren Position und einer rechten oberen Position bewegbar zu sein.
Resumen de: DE102024139087A1
Ein hierin offenbartes elektrisches Gerät weist eine erste Einsatzeinheit, eine zweite Einsatzeinheit und einen Gehäusekörper auf, der einen Einsatzanbringungsbereich aufweist, der dazu konfiguriert ist, selektiv eine von der ersten Einsatzeinheit und der zweiten Einsatzeinheit daran angebracht aufzuweisen. Die erste Einsatzeinheit kann eine Mehrzahl von ersten Batterieanbringungsbereichen aufweisen. Die zweite Einsatzeinheit kann eine Mehrzahl von zweiten Batterieanbringungsbereichen aufweisen. Eine Anordnung der zweiten Batterieanbringungsbereiche kann unterschiedlich von einer Anordnung der ersten Batterieanbringungsbereiche sein, und/oder eine Anzahl der zweiten Batterieanbringungsbereiche kann unterschiedlich von einer Anzahl der ersten Batterieanbringungsbereiche sein, und/oder eine Anbringungsstruktur von jedem der zweiten Batterieanbringungsbereiche zum Anbringen der zweiten Batterie kann unterschiedlich von einer Anbringungsstruktur von jedem der ersten Batterieanbringungsbereiche zum Anbringen der ersten Batterie sein.
Resumen de: DE102024200045A1
Elektrisch angetriebenes Fahrzeug umfassend mindestens einen Radiator (4), einen Antriebstrang (5), eine Batterie (21), eine Kabine (16) und ein thermisches System (1) zum Heizen und/oder Kühlen mindestens einer der genannten Komponenten, wobei das thermische System einen Kältemittelkreislauf (40) umfasst und das Heizen und/oder Kühlen über drei Kühlmittelkreisläufe erfolgt, wobei ein Heizkreislauf (41), ein Kühlkreislauf (41) und ein Batteriekreislauf (43) über das Schalten von zwei Vierwegeventilen (2, 3) und vier Proportionalventilen (9, 10, 11, 18) eingerichtet sind.
Resumen de: DE102025115324A1
Die Erfindung betrifft einen elektrischer Energiespeicher mit einer Mehrzahl mittels Zellverbindern (2) elektrisch verschalteter Einzelzellen (1). Erfindungsgemäß ist vorgesehen, dass jeweils elektrisch miteinander zu verschaltende Polkontakte (1.1, 1.2) zwei benachbarter Einzelzellen (1) abgewinkelt sind und abgewinkelte Schenkel (1.1.1, 1.2.1) einander zugewandt ausgerichtet sind, wobei an einer einer jeweiligen Zelloberseite zugewandten Unterseite des Schenkels (1.1.1, 1.2.1) jedes Polkontaktes (1.1, 1.2) eine entlang einer Längsachse des Schenkels (1.1.1, 1.2.1) verlaufende Nut (1.1.2, 1.2.2) ausgebildet ist, der jeweilige Zellverbinder (2) einen quaderförmigen Abschnitt aufweist und gegenüberliegend randseitig an ein und derselben Oberflächenseite des quaderförmigen Abschnittes jeweils ein mit einer Nut (1.1.2, 1.2.2) der Polkontakte (1.1, 1.2) korrespondierender Steg (2.1, 2.2) ausgebildet ist und der jeweilige Zellverbinder (2) zur elektrischen Verschaltung der beiden Polkontakte (1.1, 1.2) zumindest abschnittsweise zwischen einer Zelloberseite der Einzelzellen (1) und den Schenkeln (1.1.1, 1.2.1) zumindest formschlüssig eingeschoben angeordnet ist und die Stege (2.1, 2.2) in den Nuten (1.1.2, 1.2.2) angeordnet sind.
Resumen de: DE102024139615A1
Eine ersetzbare Batterie gemäß der vorliegenden Offenbarung ist eine ersetzbare Batterie (1), die so an einem Fahrzeug montiert ist, dass sie durch Verschieben der ersetzbaren Batterie (1) in einer Längsrichtung entfernbar ist, wobei die ersetzbare Batterie (1) Folgendes umfasst: einen rechtwinkligen Parallelepiped-Zellstapel (110) mit einer Vielzahl von darauf gestapelten Batteriezellen; und ein Gehäuse (100) zum Aufnehmen des Zellstapels (110). Das Gehäuse (100) umfasst ein rechtwinkliges röhrenförmiges Hauptkörperteil (101), ein erstes Deckelteil (102) zum Verschließen eines Öffnungsendes des Hauptkörperteils (101) und ein zweites Deckelteil (103) zum Verschließen eines anderen Öffnungsendes des Hauptkörperteils (101). Das erste Deckelteil (102) ist mit einem Zuggriff (141) versehen, und das zweite Deckelteil (103) ist mit einem Verbinder (104) versehen, der auswärts vorsteht, um mit einem Fahrzeug verbunden zu werden, und mit einem Entlastungsventil (132), durch das vom Zellstapel (110) erzeugtes Gas abgegeben wird.
Resumen de: WO2025139083A1
A battery case, comprising: a housing (1), an opening being provided at the top of the housing (1); and a top cover (2), which comprises a cover body (21), wherein the top cover (2) further comprises a flange (22) connected to the edge of the cover body (21), and the flange (22) is welded to the housing (1) so as to jointly block the opening with the cover body (21). The flange (22) has a first top portion and a first bottom portion opposite each other, and the cover body (21) has a second top portion and a second bottom portion opposite each other, wherein the distance between the first top portion and the first bottom portion is greater than the distance between the second top portion and the second bottom portion, and the first bottom portion is provided with a guide portion.
Resumen de: US2025219247A1
An embodiment of the present invention provides a separator for a non-aqueous secondary battery, including a porous substrate; and an adhesive layer that is provided on at least one side of the porous substrate and that contains a polyvinylidene fluoride type resin, in which the separator contains a lithium imide salt.
Resumen de: US2025219187A1
A vehicle control device and a method thereof are provided. The vehicle control device includes a processor, a memory, a battery, a battery heater, and a battery chiller. The processor determines a mode associated with a coolant, using at least one of a target distance of a vehicle, a traveling start time, or an outside air temperature, or any combination thereof, before the vehicle travels. The processor identifies a first threshold temperature using a designated first dataset, heats a temperature of the coolant up to the first threshold temperature using the battery heater, and identifies a second threshold temperature using a designated second dataset, in response to determining the mode associated with the coolant is a cool storage mode, and cools the temperature of the coolant up to the second threshold temperature using the battery chiller, while the coolant flows through the coolant flow line.
Resumen de: US2025219145A1
This application provides a sodium secondary battery electrolyte, a sodium secondary battery, and an electric apparatus. The sodium secondary battery electrolyte is provided, and the electrolyte includes a diluent, where the diluent includes alkane with a formula CnH2n+2, where n is 8 to 13. The diluent can improve high-temperature cycling performance of a battery, reduce high-temperature gas production of the battery, and enhance electrochemical performance and safety performance of the battery at high temperature.
Resumen de: US2025219167A1
A cells contact sheet applicable to a battery module including cell groups, the cells contact sheet includes cells contact sub-sheets and at least one connecting sheet. The cells contact sub-sheets are configured to acquire work signals of the cell groups, respectively. The connecting sheet is arranged between every two adjacent ones of the cells contact sub-sheets, and two ends of the connecting sheet are respectively connected with the two adjacent ones of the cells contact sub-sheets. The connecting sheet is provided with a first bending structure configured to deform when two of the cell groups corresponding to the every two adjacent ones of the cells contact sub-sheets move away from each other or close to each other.
Resumen de: US2025219156A1
An aluminum battery includes a positive electrode, a negative electrode, a separator, and an aqueous electrolyte. The separator is disposed between the positive electrode and the negative electrode. The aqueous electrolyte is impregnated into the separator, the positive electrode, and the negative electrode. When the aluminum battery operates, the positive electrode performs an intercalation mechanism, while the negative electrode performs a chelating mechanism.
Resumen de: AU2023386212A1
The present invention relates to a method for the recovery of manganese from a manganese containing material, the method comprising the steps of: (i) subjecting the manganese containing material to an acid leach step comprising contacting the manganese containing material with an acidic leach solution to produce a leach slurry containing a pregnant leach solution and undissolved solids; (ii) subjecting the pregnant leach solution to a pressure precipitation step, comprising maintaining the pregnant leach solution at elevated temperature and pressure for a time sufficient to precipitate impurities from the pregnant leach solution; (iii) passing the product of step (ii) to a solids/liquid separation step to substantially remove the precipitated impurities and produce a purified pregnant leach solution; and (iv) recovering manganese from the purified pregnant leach solution.
Resumen de: AU2023381166A1
Disclosed in the present application are a battery pack and an energy storage device. The battery pack comprises a fixing assembly, a shared pipeline assembly, a heat exchange assembly and a plurality of square batteries, the plurality of square batteries being connected in parallel; the fixing assembly is used for fixedly connecting the plurality of square batteries side by side so as to form the battery pack; the shared pipeline assembly is used for wholly communicating inner cavities of the plurality of square batteries, so that all the square batteries in the battery pack are located in one electrolyte system; and the heat exchange assembly is used for being fixedly connected to posts on a same side of the plurality of square batteries, so as to realize heat exchange between all the square batteries in the battery pack and the outside. The present application can enhance the uniformity of electrolytes of the square batteries in the battery pack and prolong the cycle life, and further can replenish electrolytes for the battery pack by means of the shared pipeline assembly, thus prolonging the service life of the battery pack while improving the safety of using the battery pack.
Resumen de: WO2025139476A1
Provided are a negative electrode material and a battery. The negative electrode material comprises a carbon material and a silicon material, wherein the silicon material is located inside the carbon material and/or between the carbon materials. The total volume of the carbon material is VC, the total volume of the silicon material is VSi, and 0.9≤VC/VSi≤2.3. An SEM section of a negative electrode material particle is divided into a plurality of unit regions having an area of A×B, wherein A×B=104 nm2, and the average distance between adjacent silicon material particles in any unit region is d nm, where 3≤d≤50. The provided negative electrode material can improve the dispersion uniformity of the silicon material, and can effectively inhibit the volume expansion of the negative electrode material and improve the cycle performance of a battery.
Resumen de: WO2025138685A1
A busbar assembly and a battery pack. The busbar assembly comprises: a busbar body (1), which is provided with a positioning recess (11) and a welding recess (12) configured to be welded to a pole terminal of a battery cell, wherein a spacing is reserved between the positioning recess (11) and the welding recess (12); and a temperature acquisition element (5), which is glued in the positioning recess (11).
Resumen de: DE102024139084A1
Ein elektrisches Gerät kann einen ersten Batterieanbringungsbereich, der dazu konfiguriert ist, eine erste Batterie daran angebracht aufzuweisen, einen zweiten Batterieanbringungsbereich, der dazu konfiguriert ist, eine zweite Batterie daran angebracht aufzuweisen, eine erste Lichtemittiervorrichtung, die dazu konfiguriert ist, Licht gemäß einem Zustand der ersten Batterie zu emittieren, eine zweite Lichtemittiervorrichtung, die dazu konfiguriert ist, Licht gemäß einem Zustand der zweiten Batterie zu emittieren, und eine Batteriestatusanzeigevorrichtung aufweisen. Die Batteriestatusanzeigevorrichtung kann eine Linse, die dazu konfiguriert ist, das Licht, das durch die erste Lichtemittiervorrichtung emittiert wird, und das Licht, das durch die zweite Lichtemittiervorrichtung emittiert wird, zu übertragen, und zumindest eine Anzeigevorrichtung aufweisen, die dazu konfiguriert ist, das Licht, das durch die Linse übertragen wird, anzuzeigen.
Resumen de: DE102024139095A1
Eine elektrische Vorrichtung kann einen Gehäusekörper, der einen Aufnahmeraum definiert, eine Batterieaufnahme, die an dem Gehäusekörper angeordnet ist, bei der das Batteriepack, das als eine Leistungszufuhr für ein Kraftwerkzeug verwendet wird, entfernbar an der Batterieaufnahme angebracht ist, einen externen Anschluss, der an dem Gehäusekörper angeordnet ist und dazu konfiguriert ist, elektrisch mit dem Batteriepack über die Batterieaufnahme verbunden zu werden, einen Deckel, der dazu konfiguriert ist, relativ zu dem Gehäusekörper zwischen einer offenen Position, bei welcher der Deckel den Aufnahmeraum öffnet, und einer geschlossenen Position bewegbar zu sein, bei welcher der Deckel den Aufnahmeraum schließt, und einen Kopplungsmechanismus aufweisen, der dazu konfiguriert ist, zwischen einem Kopplungszustand, bei welchem der Kopplungsmechanismus den Gehäusekörper und den Deckel miteinander koppelt, und einem Entkopplungszustand schaltbar zu sein, bei welchem der Kopplungsmechanismus den Gehäusekörper und den Deckel voneinander entkoppelt.
Resumen de: DE102024139612A1
Eine ersetzbare Batterie gemäß der vorliegenden Offenbarung ist eine ersetzbare Batterie (1), die entfernbar an einem Fahrzeug montiert ist, wobei die ersetzbare Batterie (1) Folgendes umfasst: einen rechtwinkligen Parallelepiped-Zellstapel (110) mit einer Vielzahl von darauf gestapelten Batteriezellen; und ein Gehäuse (100) zur Aufnahme des Zellstapels (110). Das Gehäuse umfasst ein rechtwinkliges röhrenförmiges Hauptkörperteil (101), ein erstes Deckelteil (102) zum Verschließen eines Öffnungsendes des Hauptkörperteils (101) und ein zweites Deckelteil (103) zum Verschließen eines anderen Öffnungsendes des Hauptkörperteils (101), der zweite Deckelteil (102) mit einem Verbinder (104), der nach außen vorsteht, um mit einem Fahrzeug verbunden zu werden, und einem Handgriff (131) versehen ist, und der Handgriff (131) auf einer oberen Fläche des Hauptkörperteils (101) platziert ist, um um eine Welle drehbar zu sein, die sich entlang einer oberen Kante des zweiten Deckelteils (102) erstreckt.
Resumen de: DE102024117463A1
Offenbart sind eine Festkörperbatterie, die eine Referenzelektrode enthält und ein Verfahren zur Steuerung davon. Die Festkörperbatterie enthält die Referenzelektrode, die zwischen einem oberen Stapel, der eine oder mehrere Einheitszellen enthält, und einem unteren Stapel, der eine oder mehrere Einheitszellen enthält, angeordnet ist, um Potenziale von Elektroden in der Festkörperbatterie zu bestimmen und so den Betrieb der Festkörperbatterie zu steuern.
Resumen de: DE102024139614A1
Eine austauschbare Batterie hat Folgendes: einen Zellenstapel; und ein Gehäuse zum Unterbringen des Zellenstapels, wobei das Gehäuse Folgendes beinhaltet: ein erstes Element mit einem L-förmigen Querschnitt, das eine Bodenplatte zum Stützen des Zellenstapels beinhaltet; ein zweites Element mit einem L-förmigen Querschnitt, das so angeordnet ist, dass es dem ersten Element zugewandt ist; ein erstes Deckelteil zum Schließen eines Öffnungsteils des Hauptkörperteils; und ein zweites Deckelteil mit einem Verbindungsstück zum Verschließen des anderen Öffnungsteils des Hauptkörperteils, wobei der Zellenstapel näher an einer Seitenplatte des ersten Elements angeordnet ist, das Gehäuse einen räumlichen Bereich über dem Zellenstapel aufweist und ein Bereich der Seitenplatte des ersten Elements, der zu dem räumlichen Bereich vorragt, und eine obere Platte des zweiten Elements mit einem Befestigungselement aneinander befestigt sind.
Resumen de: DE102024138484A1
Ein Hauptziel der hier genannten Offenbarung ist es, ein Elektroden-Aktivmaterial bereitzustellen, dessen Volumenänderung aufgrund von Ladung und Entladung gering ist. Die hier genannte Offenbarung erreicht das Ziel durch Bereitstellen eines Elektroden-Aktivmaterials, das eine Kristallphase vom Typ-II-Siliziumclathrat aufweist, wobei ein Hohlraum innerhalb eines Primärpartikels vorhanden ist; und ein Hohlraumanteil P1eines Hohlraums mit einem Porendurchmesser von 5 nm oder weniger 0,015 cm3/g oder mehr und 0,05 cm3/g oder weniger beträgt.
Resumen de: DE102024138481A1
Ein Hauptziel der vorliegenden Offenbarung ist es, ein Elektroden-Aktivmaterial vorzusehen, dessen Volumenänderung aufgrund von Ladung und Entladung gering ist. Die vorliegende Offenbarung erreicht das Ziel durch Vorsehen eines Elektroden-Aktivmaterials, das Si enthält, wobei eine Si-H-Bindung auf einer Oberfläche des Elektroden-Aktivmaterials vorhanden ist; und ein Anteil einer Menge an Wasserstoff (Gew.-%) in Bezug auf eine spezifische BET-Oberfläche (m2/g) mehr als 0,0034 beträgt.
Resumen de: DE102024138925A1
Ein Hauptziel der vorliegenden Offenbarung ist es, ein Verfahren zur Entsorgung einer Batterie bereitzustellen, mit dem die Batterie gut deaktiviert werden kann. Die vorliegende Offenbarung erreicht das Ziel, indem sie ein Verfahren zur Entsorgung einer Batterie bereitstellt, wobei das Verfahren beinhaltet: einen Einweichschritt des Einweichens einer Batterie, beinhaltend einen Al-Anschluss, in einer Behandlungsflüssigkeit, um eine Spannung der Batterie durch Verursachung äußerer Kurzschlüsse durch die Behandlungsflüssigkeit zu verringern, wobei die Behandlungsflüssigkeit Wasser, ein Hilfssalz, und ein Additiv, das verhindert, dass der Al-Anschluss eluiert, enthält; und eine Konzentration des Additivs in der Behandlungsflüssigkeit eine Minimalkonzentration CMINoder mehr ist, die in der Lage ist, zu verhindern, dass der Al-Anschluss eluiert.
Resumen de: DE102024103896A1
Ein verbesserter Batteriepack des Typs, der ein Gehäuse umfasst, das eine Vielzahl von Batteriezellen enthält, die eine entflammbare flüchtige Elektrolytkomponente aufweisen. Die Verbesserung umfasst ein Fängermaterial, das die flüchtige entflammbare Elektrolytkomponente absorbiert, die innerhalb des Gehäuses des Batteriepacks angeordnet ist, um die entflammbare flüchtige Elektrolytkomponente zu absorbieren, die aus den Zellen in dem Gehäuse ausläuft.
Resumen de: WO2025137961A1
The present invention relates to the technical field of the preparation of lithium-ion positive electrode materials, and discloses a lithium iron phosphate positive electrode material and a preparation method therefor, and a lithium-ion battery. According to an XRD test, the lithium iron phosphate positive electrode material has characteristic diffraction peaks at 2θA1 of 29.4-29.6°, 2θA2 of 29.8-30° and 2θA3 of 43.8-43.9°. The lithium iron phosphate positive electrode material has specific characteristic diffraction peaks according to an XRD test, and therefore the lithium iron phosphate positive electrode material has a high compaction density, thereby significantly improving the capacity and electrochemical properties such as the cycle performance of a lithium-ion battery assembled from the lithium iron phosphate positive electrode material.
Resumen de: WO2025137857A1
The present invention relates to the technical field of lithium ion batteries, and in particular to a positive electrode material having an olivine structure, a preparation method therefor, and a lithium ion battery. The positive electrode material comprises a base and a carbon coating layer; in a Raman spectrum, the positive electrode material has Raman responses in the wave number ranges of 940-950 cm-1, 1330-1350 cm-1 and 1580-1610 cm-1, and the Raman responses respectively correspond to three characteristic peaks A, B and C; and the positive electrode material satisfies: 0.01≤the average value of I(A)/I(C)≤0.3 and 0.01≤the average value of I(A)/I(B)≤0.3. The positive electrode material has a uniform carbon coating, so that the positive electrode material has high stability, low specific surface area, low volume resistance and high compacted density; in addition, the positive electrode material is used in the lithium ion battery, achieving excellent electrochemical performance.
Resumen de: DE102024104357A1
Eine positive Elektrode für eine Batterie, die Lithium-Ionen zyklisiert, enthält ein fluoriertes lithiumreiches manganbasiertes Oxid- (LMR-) Material. Das fluorierte LMR-Material hat die Formel: Li1+xMe1-xO2-yFy, wobei: Me ein Übergangsmetall ist, das aus der Gruppe ausgewählt ist, die aus Co, Ni, Mn, Fe, Al, V, Mo, Nb, Zr, Zn, Mg, Cu, Ti und W besteht; Me auf atomarer Basis mehr als oder gleich 50 % Mn enthält; x größer als 0 und kleiner als oder gleich 0,33 ist; und y größer als 0 und kleiner als oder gleich 0,1 ist.
Resumen de: WO2025144066A1
The present invention relates to a system for conditioning a set of batteries (18) and a power inverter (19) for supplying power to a telecommunications system comprising a conditioning chamber (25) for the power inverter (19), a water tank (13) for the set of batteries (18), wherein the walls of the conditioning chamber (25) are made of a composite material, obtained after hardening a cementitious composition comprising a hydraulic binder, cellulose or keratin-based fibres and an adjuvant. The system also includes a water circulation pipe (21) and a pump (20), which moistens the walls of the conditioning chamber (25). The system is weather-resistant, fireproof and contributes to the evaporative cooling of the conditioning chamber (25).
Resumen de: WO2025144585A1
Systems and methods are provided herein for generating wave pair segments for use in an electrode assembly. For example, a web of ionically permeable and electrically isolating separator material may be coated on a first side with anodically active material. The web may then be coated on a second side, opposite the first side, with cathodically active material. The web may then be cut into equally sized wave-pair segments. A web of cathode current collector material may be cut into a plurality of cathode current collectors and a web of anode current collector material may be cut into a plurality of anode current collectors. The wave-pair segments and current collectors may be interleaved to form an electrode assembly where the alignment between the anode and cathode is fixed.
Resumen de: WO2025139414A1
A lithium-rich manganese-based positive electrode material and a preparation method therefor, a positive electrode sheet, a battery and electronic equipment. The lithium-rich manganese-based positive electrode material comprises first particles and second particles, wherein the first particles satisfy chemical formula (1), and the second particles satisfy chemical formula (2): aLi2O·bLi2MnO3·cLiXαX'βO2 (1)，and xLi2O·yLi2MnO3·zLiYγY'δO2 (2); in formula (1), -0.1≤a≤0, 0
Resumen de: WO2025138510A1
A lithium manganese iron phosphate positive electrode material, a preparation method therefor, and a lithium-ion battery. The crystallite size Dx at a characteristic peak (020) of the positive electrode material measured by means of XRD and the single particle size Ds of the positive electrode material measured by means of an SEM electron microscope satisfy: 2.0≤Ds/Dx≤4.0. The lithium manganese iron phosphate positive electrode material can solve technical problems such as poor dynamic diffusion capabilities and poor high-rate charging and discharging capabilities, which occur for existing lithium manganese iron phosphate.
Resumen de: DE102024103880A1
Einige der hier beschriebenen Ausführungsformen beziehen sich auf Batteriemanagementsysteme, die Dünnfilm-Drucksensoren verwenden, um anomale Zustände in Verbindung mit Batteriemodulen festzustellen. Einige Ausführungsformen können das Empfangen einer Druckmessung von dem Dünnfilm-Drucksensor, der zwischen zwei Batteriezellen in einem Batteriemodul angeordnet ist, und das Bestimmen eines anormalen Zustands des Batteriemoduls auf der Grundlage der Druckmessung des Dünnfilm-Drucksensors umfassen. Andere Ausführungsformen können offenbart oder beansprucht werden.
Resumen de: DE102024139827A1
Es wird eine Batteriezelle dargelegt, die eine negative Elektrode, eine Lithium-Mangan-reiche positive Elektrode und einen Elektrolyten mit einem Methylenmethandisulfonat-Additiv umfasst. Der Elektrolyt mit dem Methylenmethandisulfonat-Additiv sättigt die negative und die Lithium-Mangan-reiche positive Elektrode, sodass sich während eines Zyklierens der Batterie eine positive Elektrolytgrenzfläche an einer Oberfläche der Lithium-Mangan-reichen positiven Elektrode bildet. Die positive Elektrolytgrenzfläche führt dazu, dass eine Gleichstromimpedanz der Batteriezelle für einen gegebenen Ladezustand geringer ist als eine Gleichstromimpedanz einer ansonsten gleichen Batteriezelle ohne das Methylenmethandisulfonat-Additiv.
Resumen de: DE102024138923A1
Ein Hauptziel der vorliegenden Offenbarung ist es, ein Verfahren zum Entsorgen einer Batterie bereitzustellen, mit dem die Batterie gut deaktiviert werden kann. Die vorliegende Offenbarung erreicht das Ziel, indem sie ein Verfahren zum Entsorgen einer Batterie bereitstellt, wobei das Verfahren folgendes umfasst: den Schritt des Eintauchens einer Batterie, die einen Al-Anschluss enthält, in eine Behandlungsflüssigkeit, um eine Spannung der Batterie zu verringern, indem ein äußerer Kurzschluss durch die Behandlungsflüssigkeit verursacht wird, wobei die Behandlungsflüssigkeit Wasser und ein Trägersalz enthält; und der Al-Anschluss an wenigstens einem Teil seiner Oberfläche eine Schutzschicht hat, die verhindert, dass der Al-Anschluss in die Behandlungsflüssigkeit eluiert.
Resumen de: DE102024104354A1
Ein Träger zum Tragen einer Vielzahl von prismatischen Batteriezellen in einem wiederaufladbaren Energiespeichersystem (RESS) eines Elektrofahrzeugs umfasst eine Basis mit einem unteren länglichen horizontalen Flansch und einem oberen länglichen horizontalen Flansch, der schmaler als der untere längliche horizontale Flansch ist und über dem unteren länglichen horizontalen Flansch durch einen vertikalen Steg beabstandet ist. Ein Stegelement kann auf dem oberen länglichen horizontalen Flansch der Basis angeordnet sein und umfasst erste und zweite längliche vertikale Außenwandelemente. Mindestens zwei längliche Blecheinsätze sind zwischen den vertikalen Außenwandelementen angeordnet und so konfiguriert sind, dass sie zumindest teilweise mindestens einen sich in Längsrichtung erstreckenden Kanal zwischen sich bilden. Die länglichen Blecheinsätze können aus Metall hergestellt sein, und der sich in Längsrichtung erstreckende Kanal stellt einen Durchgang für Kühlfluid bereit. Eine Kappe kann in die Oberkanten der vertikalen Wandelemente eingreifen und die Blecheinsätze in dem Raum zwischen dem ersten und dem zweiten vertikalen Wandelement einschließen.
Resumen de: US2025219066A1
A main object of the present disclosure is to provide an electrode active material of which volume change due to charge and discharge is small. The present disclosure achieves the object by providing an electrode active material including Si, wherein a Si—H bond is present on a surface of the electrode active material; and a rate of a hydrogen amount (weight %) with respect to a BET specific surface area (m2/g) is more than 0.0034.
Resumen de: US2025219062A1
An electrode assembly includes a positive electrode plate, a negative electrode plate, and a separator disposed between the positive electrode plate and the negative electrode plate; and the positive electrode plate, the negative electrode plate, and the separator are stacked. An outermost electrode plate of the electrode assembly is a single-sided positive electrode plate. The single-sided positive electrode plate includes a positive electrode current collector, a first positive electrode material layer, and a second positive electrode material layer stacked sequentially. The first positive electrode material layer is located between the positive electrode current collector and the second positive electrode material layer. The second positive electrode material layer is adjacent to the separator. The first positive electrode material layer includes a first positive electrode active substance, a first binder, and a first conductive agent.
Resumen de: US2025219078A1
The present invention relates to an LFMP-based positive electrode active material for a lithium secondary battery, provided with excellent capacity and lifetime characteristics, and a secondary battery including the same, and specifically, relates to an LFMP-based positive electrode active material for a lithium secondary battery, provided with excellent capacity and long life characteristics due to the composition of the LFMP-based positive electrode active material and structural characteristics of a positive electrode including the same, and a lithium secondary battery including the same.
Resumen de: US2025219237A1
An explosion-proof structure, a battery, and a battery pack are provided. The explosion-proof structure includes a cover plate and an explosion-proof groove including a first sub-groove and a second sub-groove. H1
Resumen de: US2025219232A1
An electrical apparatus disclosed herein may include a first tray unit, a second tray unit, and a case body including a tray attachment portion configured to have selectively one of the first tray unit and the second tray unit attached thereto. The first tray unit may include a plurality of first battery attachment portions. The second tray unit may include a plurality of second battery attachment portions. An arrangement of the second battery attachment portions may be different from an arrangement of the first battery attachment portions, and/or a number of the second battery attachment portions may be different from a number of the first battery attachment portions, and/or an attachment structure of each of the second battery attachment portions for attaching the second battery may be different from an attachment structure of each of the first battery attachment portions for attaching the first battery.
Resumen de: US2025219227A1
A battery pack includes: a lever on a front portion of the battery pack; and a latching unit operably connected to the lever. The lever actuates engagement and disengagement of the battery pack with an enclosure. The latching unit is disposed at a rear portion of the battery pack and is configured to engage and disengage the battery pack from the enclosure.
Resumen de: US2025219255A1
An energy storage device includes an electrode body in which an electrode plate and a separator are stacked, an electrolyte solution, a container to accommodate the electrode body and the electrolyte solution, and a sheet-shaped porous body provided with an insulating property and between the electrode body and the container. A through hole is provided in the electrode plate.
Resumen de: US2025219224A1
A beam for supporting a plurality of prismatic batteries in battery enclosure of an electric vehicle includes a base, having a lower elongate horizontal flange, and an upper elongate horizontal flange, narrower than the lower elongate horizontal flange, spaced above the lower elongate horizontal flange by a vertical web. A web member can be disposed on the upper elongate horizontal flange of the base, and includes first and second elongate exterior vertical wall members. At least two elongate inserts disposed between the vertical exterior wall members, and configured to at least in part form at least one longitudinally extending channel between them. The elongate inserts can be made of metal and the longitudinally extending channel provides a pathway for cooling fluid. A cap can engage the upper edges of the vertical wall members and enclose the metal inserts in the space between the first and second vertical wall members.
Resumen de: US2025219060A1
The present invention provides a positive electrode composite active substance which includes a uniform coating layer as compared with the related art and can suppress generation of gas due to decomposition of a nonaqueous electrolytic solution, and a method of manufacturing the positive electrode composite active substance. An oxide active substance, and a coating layer covering a surface of the oxide active substance are provided, the oxide active substance includes a lithium manganese-based oxide having a spinel-type crystal structure, the coating layer includes a phosphate-based compound represented by Formula (1), and the coating layer has a thickness of 5 nm or more and 20 nm or less,LiaAbDcPO4 (1)where a, b, and c satisfy 0.9
Resumen de: US2025219104A1
The steel foil for a current collector according to the present disclosure includes a ferritic stainless steel foil. In an X-ray diffraction profile with CoKα rays of the ferritic stainless steel foil according to the present disclosure, the half width Fw of the peak for the {110} plane is 0.40 to 0.52°.
Resumen de: US2025219079A1
This cylindrical secondary battery comprises: an electrode body having a positive electrode and a negative electrode; a bottomed cylindrical exterior body, having an outer diameter of 25 mm or more; and a sealing body. The positive electrode includes a positive-electrode current collector, and a positive-electrode mixture layer, the positive-electrode mixture layer containing a positive-electrode active material and a sulfonic acid compound represented by general formula (I). The positive-electrode active material includes a lithium-containing composite oxide having a layered rock-salt structure. The weight per unit area of the positive-electrode mixture layer is 250 g/m2 or more. In the electrode body, three or more positive-electrode leads are led out.(In the formula, A is a group 1 element or a group 2 element, R is a hydrocarbon group, and n is 1 or 2.)
Resumen de: US2025219161A1
The present invention addresses the problem of providing a solid-state secondary battery capable of suppressing the uneven depositing of metal in a negative electrode interface in the solid-state secondary battery, and capable of improving cycling characteristics. The means for solving the problem is a solid-state secondary battery having a positive electrode layer, a negative electrode layer including at least a negative electrode current collector, a solid electrolyte layer containing a solid electrolyte material, and an intermediate layer provided between the negative electrode layer and the solid electrolyte layer. The voidage of the intermediate layer is greater than the voidage of the solid electrolyte layer.
Resumen de: US2025219225A1
A replaceable battery according to the present disclosure is a replaceable battery removably mounted on a vehicle, the replaceable battery including: a rectangular parallelepiped cell stack having a plurality of battery cells stacked thereon; and a case for accommodating the cell stack. The case includes a rectangular tube shaped main body part, a first lid part for closing one opening end of the main body part, and a second lid part for closing an other opening end of the main body part, the second lid part is provided with a connector protruding outward so as to be connected to a vehicle, and a grip-handle, and the grip-handle is placed on an upper surface of the main body part so as to be rotatable around a shaft extending along an upper edge of the second lid part.
Resumen de: US2025219223A1
A boxing device, which is configured to place an article to be boxed into a box, with an opening of the box facing downwards is described. The boxing device includes: a bearing portion, wherein the bearing portion extends in a first direction and is located under the article to be boxed so as to bear the article to be boxed; a guiding portion, wherein the guiding portion extends in a second direction and is configured to limit the article to be boxed in a third direction; and a pressurizing portion, wherein the pressurizing portion is configured to limit the article to be boxed in the first direction, and the first direction, the second direction, and the third direction are perpendicular to one another.
Resumen de: US2025219256A1
A battery structure includes two battery modules and a conductive elastic member. The two battery modules are stacked with each other. Each of the two battery modules includes a housing, a plurality of battery cells, a first holder, a second holder, a first conductive plate and a second conductive plate. The battery cells are disposed in the housing. The first holder accommodates an end of each of the battery cells. The second holder accommodates another end of each of the battery cells. The first conductive plate is disposed on the first holder and electrically connected to the battery cells. The second conductive plate is disposed on the second holder and electrically connected to the battery cells. The conductive elastic member is disposed between and in contact with the first conductive plate and the second conductive plate of the two battery modules.
Resumen de: US2025219220A1
A power storage unit includes: a power storage pack that includes a power storage element and a holding case that holds the power storage element, a box that accommodates the power storage pack, and a flat metal fitting that is disposed to oppose, in the box metal placement surface of the power storage pack with the power storage pack intervening therebetween, and is fixed to the box and the placement surface and the flat metal fitting form a pressurizing member is that suppress expansion of the power storage element.
Resumen de: US2025219250A1
A lithium ion secondary battery includes a negative electrode portion, a porous layer formed on at least one surface of the negative electrode portion, and a positive electrode portion. The porous layer includes a polymer binder and inorganic fine particles dispersed on the polymer binder. The positive electrode portion is bonded onto the porous layer through an adhesive portion arranged continuously or discontinuously. The adhesive portion includes an ionic conductive polymer, and a ratio of an area occupied by the adhesive portion ranges from 0.02% to 50% based on an area of one surface of the positive electrode portion. A lithium ion secondary battery including an electrode assembly which has excellent adhesion durability without impairing ionic conductivity between electrodes is also provided.
Resumen de: US2025219168A1
Provided is a battery energy storage system with remote monitoring, maintenance, and control. The battery energy storage system includes a residential battery energy storage unit having a battery module, a battery management system coupled to the battery module, a bi-directional power converter, and a communication controller configured to communicate with the battery management system and the bi-directional power converter. The communication controller sends error codes via the internet to a server to enable an operating issue with the residential battery energy storage unit to be corrected remotely. The communication controller translates error codes received from the battery management system to new error codes that are sent to the server. The communication controller receives data messages from the battery management system and sends information from the received data message to the bi-directional power converter using a new message format. The communication controller can receive control information that controls the charging and discharging of the battery module.
Resumen de: US2025219143A1
This application provides an electrolyte for a sodium secondary battery, a sodium secondary battery, and an electrical apparatus. An electrolyte for a sodium secondary battery is provided, where the electrolyte includes an additive, and the additive includes a fluorinated ether compound. In this application, through the addition of an additive, including a fluorinated ether compound, in the electrolyte, the high-temperature cycling performance of the battery can be improved, the high-temperature gas generation phenomenon of the battery can be alleviated, and the electrochemical performance and safety performance of the battery can be improved.
Resumen de: US2025219074A1
A cathode active material for a lithium secondary battery has a structure of a lithium transition metal oxide. A ratio of a crystallite size of a (003) plane to a crystallite size of a (110) plane measured by an X-ray diffraction (XRD) analysis is in a range from 0.7 to 2.0, and a ratio of the crystallite size of the (003) plane to a crystallite size of a (104) plane measured by the XRD analysis is in a range from 0.7 to 2.0. A cathode for a lithium secondary battery and a lithium secondary battery include the cathode active material for a lithium secondary battery.
Resumen de: US2025219169A1
The present disclosure relates to a wireless communication method between a plurality of battery management systems (BMSs) and a battery system providing the same. The battery system including at least one battery pack including a battery module and a slave battery management system (BMS) managing the battery module according to the present disclosure includes: a signal processing circuit; a capacitor connected between the signal processing circuit and a first ground; an inductor connected between a second ground and a wire between the first ground and the capacitor; and a controller configured to transmitting an AC signal having a predetermined frequency to the signal processing circuit in an antenna mode in which the slave BMS is configured to communicates with one or more other slave BMSs or a master BMS.
Resumen de: US2025219221A1
A package structure for a battery pack is provided. The package structure for the battery pack includes a tray structure and a cover body, the tray structure includes a tray body and a support portion. At least a part of the support portion protrudes from a periphery of the tray body in a planar extension direction of the tray body. The support portion cooperates with the tray body to form a groove located at the periphery of the tray body. The cover body is arranged on a first side of the tray body. A cavity is formed on a side, facing the tray body, of the cover body. The battery pack is located on the first side of the tray body and is accommodated in the cavity. At least a part of the cover body is lapped with the groove, and the tray body is accommodated in the cavity.
Resumen de: US2025219222A1
A frame structure includes an outer frame body and a battery rack disposed within the outer frame body. The battery rack includes at least two supporting frames disposed at intervals in a first direction. A flexible fixing member and a battery bracket for bearing a battery are disposed between two adjacent supporting frames. One end of the flexible fixing member is connected to a top frame of the outer frame body, a middle portion of each battery bracket is provided with a through hole, and another end of the flexible fixing member extends in a second direction through the through hole. A periphery of the flexible fixing member is provided with a supporting member. The supporting member is borne at a bottom of the battery bracket to support a middle position of the battery bracket, and thus the middle portion of the battery bracket is supported.
Resumen de: US2025219219A1
A container device includes a housing having six substantially quadrangular surfaces facing mutually different directions, the housing being formed in a substantially polyhedral shape, and a container portion provided inside the housing. The container portion contains a contained item to enable the contained item to be inserted and removed. The housing has a first member and a second member, the first member and the second member each being attached to the container portion, and the second member is attached to an opposite side of the first member across the container portion.
Resumen de: US2025219242A1
An improved battery pack of the type comprising an enclosure containing a plurality of battery cells having a flammable volatile electrolyte component. The improvement comprises a trapper material that absorbs the volatile flammable electrolyte component disposed inside the enclosure of the battery pack to absorb flammable volatile electrolyte component that leak from the cells in the enclosure.
Resumen de: US2025219254A1
This application provides a separator and a preparation method thereof, a secondary battery, and an electric apparatus. The separator includes a substrate and a coating, with the coating being provided on at least one side of the substrate and the coating including organic materials, where a weight per unit area of the coating for a single side is denoted as M, a thickness of the coating for a single side is denoted as H, and a true density of the organic materials is denoted as ρorganic, and the separator satisfies M/(H×ρorganic)≥0.4, where M is in unit of g/m2, H is in unit of μm, and ρorganic is in unit of g/cm3.
Resumen de: US2025219147A1
Disclosed are an additive composition for a lithium-ion battery electrolyte, an electrolyte including the additive composition, and a use of the electrolyte. The additive composition includes an unsaturated cyclic carbonate and an unsaturated chain carbonate. The unsaturated cyclic carbonate comprises at least one of the following compounds: formula (1-a), formula (1-b) and formula (1-c); the unsaturated chain carbonate has a general structural formula represented by formula (2), wherein R1 is a hydrocarbyl or fluorinated hydrocarbyl containing 1 to 6 carbon atoms, R2 is a hydrocarbyl or fluorinated hydrocarbyl containing 1 to 6 carbon atoms; and group A is a vinylidene or an ethynylene. Lithium ion batteries using the electrolyte have the advantages of low impedance, excellent cycle performance and the like, and the batteries also have excellent high-temperature cycle performance and high-temperature storage performance.
Resumen de: US2025219076A1
A secondary battery includes a positive electrode, a negative electrode, and an electrolytic solution. The positive electrode includes a positive electrode current collector, and a positive electrode active material layer supported by the positive electrode current collector. The positive electrode active material layer includes multiple holding particles each including anatase-type titanium oxide, and multiple positive electrode active material particles each including a sulfur-containing material. The holding particles form a porous structure by being directly joined to each other. The porous structure is directly coupled to the positive electrode current collector. The positive electrode active material particles are each held by any one of the holding particles. The holding particles have an average particle size of 100 nm or less.
Resumen de: US2025219162A1
Disclosed are a separator for a rechargeable lithium battery and a rechargeable lithium battery including the same. Specifically, an embodiment provides a separator for a rechargeable lithium battery including a substrate; and a coating layer located on one or both surfaces of the substrate and including a metal organic framework (MOF) of ZIF-8, Fe-BTC, or a combination thereof.
Resumen de: US2025219075A1
The present disclosure has an object to provide a method for manufacturing a positive electrode active material in which performance degradations of a capacity characteristic and an output characteristic are suppressed. The herein disclosed method for manufacturing the positive electrode active material includes a preparation step for preparing an end material of a positive electrode plate containing a positive electrode active material that has never been performing intercalation and deintercalation of a charge carrier, an alkaline liquid immersing step for immersing the end material into an alkaline liquid, a solid-liquid separation step for performing a solid-liquid separation on the alkaline liquid after the alkaline liquid immersing step so as to collect the solid substance, a classifying step for classifying the collected solid substance into a fine particle fraction and a coarse particle fraction, and a baking step for baking the coarse particle fraction.
Resumen de: US2025219200A1
Disclosed are an apparatus and a method for sealing a pouch type secondary battery. Insulation defects are prevented and a long-term reliability, such as a chemical resistance, is improved by evenly forming a polymer material pushed from a sealed portion in a tab part even in an unsealed portion to prevent a thickness of a sealant layer from being smaller when a pouch outer material and a lead tab film are sealed in accommodating a secondary battery by using a pouch outer material including a pouch film stack.
Resumen de: US2025219251A1
Disclosed herein is a novel lithium-ion battery separator of a cellulose base exposed to a heat treatment within a specific range of temperatures and times subsequent to manufacture thereof. Such a separator exhibits an unexpected level of effective water scavenging within a lithium-ion battery cell without any compromise in separator capability in order to provide a simplified manner of mitigating hydrofluoric acid generation. Such a procedure protects transition metal cathode constituents from oxidation/dissolution which in turn leads to improvements in capacity retention within a subject lithium-ion battery.
Resumen de: US2025219216A1
The disclosure provides a cell housing, a cell, and a high-capacity battery. The cell housing has a soluble mechanism, and an inner cavity of the cell housing is in communication with an exterior after the soluble mechanism is in contact with an electrolyte. The cell housing has a simple housing structure, such that electrolyte cavities of cells can be in communication without mechanical operation, a plurality of cells are in a uniform electrolyte system, and a performance of the battery is improved.
Resumen de: US2025219217A1
A secondary battery includes an electrode assembly, a pouch accommodating the electrode assembly, and a cover tape attached to the pouch so as to at least partially cover at least two surfaces of the pouch. The cover tape includes a fixing area attached to a first surface of the pouch, a dot area attached to a second surface of the pouch, and adhesives on the fixing area and the dot area, and the adhesives have different adhesive forces.
Resumen de: US2025219253A1
A separator, a method for manufacturing the separator, an energy storage device, and an electricity-consumption apparatus are provided. The separator has a portion with a first porosity and a portion with a second porosity arranged in a width direction of the separator. The second porosity is less than the first porosity. The first portion is disposed closer to the tab of the energy storage device than the second portion.
Resumen de: US2025219212A1
In a method for manufacturing a power storage device, when a surface position of an accuracy requiring surface of a sealing member is located on a back surface side relative to a support point, the surface position is displaced toward a front surface side in advance. It is determined whether a surface displacement amount of the accuracy requiring surface relative to the support point satisfies a required reference value. When the surface displacement amount is determined to not satisfy the reference value, the sealing member is corrected by a load applied to the accuracy requiring surface until a position corresponding to a corrective deformation amount determined by adding the surface displacement amount and an elastic deformation amount allowing the sealing member to restore by its own elastic force to a normal position at which the surface displacement amount is zero, and then the load is removed.
Resumen de: US2025219182A1
Embodiments described herein relate to removal of aluminum impurities from battery waste. In some aspects, a method for removing aluminum impurities includes preprocessing a quantity of battery waste to improve removal of aluminum impurities from the quantity of battery waste. The method further includes removing at least a portion of the aluminum impurities from the quantity of battery waste, modifying the removed aluminum impurities to form a coating precursor and/or a doping precursor, and applying the coating precursor and/or the doping precursor to an electrode material. In some embodiments, the method further includes characterizing the aluminum impurities in the quantity of battery waste and regenerating the electrode material. In some embodiments, the removing can be via sieving, cyclone separation, air separation, elutriation, and/or dissolution. In some embodiments, the doping precursor can include aluminum hydroxide (Al(OH)3). In some embodiments, the regenerating includes applying a heat treatment to the electrode material.
Resumen de: US2025219189A1
A battery pack includes a battery module, a pack housing on which at least one battery module is mounted, and a cooling tube assembly that is mounted within the pack housing. The battery module includes a cell assembly formed by stacking a plurality of battery cells, and a module frame for housing the cell assembly. One end of the battery module overlaps with the cooling tube assembly.
Resumen de: US2025219101A1
One embodiment of the present disclosure provides a copper foil including a copper film including 99.9 wt % or more of copper, and a protective layer disposed on the copper film, wherein the copper foil has a first moisture absorption rate of 0.1% or less. The first moisture absorption rate is expressed by Equation 1 below,first moisture absorption rate=(weight after 24-hour immersion-weight before immersion)/(weight after 24-hour immersion)×100 Equation 1wherein the immersion in Equation 1 refers to immersing a specimen in water at room temperature for 24 hours.
Resumen de: US2025219163A1
The present disclosure relates to an electrode for a secondary battery and a secondary battery comprising the same. The present disclosure is to provide an electrode which may prevent a short between electrodes in a secondary battery and to improve safety of a battery by preventing a short between an anode and a cathode.
Resumen de: US2025219073A1
The present invention may provide a cathode active material that exhibits excellent structural stability and lifespan retention rate even in a high-temperature environment where a battery is operating. In addition, the present invention may provide a cathode including an active material layer containing the cathode active material and provide a battery cell including the cathode. In addition, the present invention is aimed at providing a battery cell assembly including the battery cell. In addition, the present invention may provide an electric device including one or more selected from the group consisting of the battery cell and the battery cell assembly.
Resumen de: US2025219218A1
The present disclosure describes an energy storage device and its associated charging/discharging control system. This energy storage device comprises an energy storage power supply and a detachably connected battery pack. The energy storage power supply features a housing with a mounting part that includes an interface, a built-in battery, and an inverter, all arranged to avoid interference with the mounting part. User-accessible input and output interfaces are also present on the housing. The battery pack connects freely to the mounting part and includes a power output port designed for mechanical and electrical connection to the interface. The battery pack has two operational states: in the first state, it charges using power from the energy storage supply via the connection; in the second state, it couples with the inverter to output alternating current through the output interface.
Resumen de: US2025219158A1
The present invention provides bromine-based additives for overcharge protection in aqueous zinc-ion batteries. These additives undergo oxidation before electrolyte decomposition during overcharging, effectively preventing overcharge. As a result, the batteries demonstrate significantly extended lifespans and maintain stable electrolyte environments. The overcharge protection is effective for more than 650 hours in Zn∥MnO2 batteries and 500 hours in Zn∥MnVO batteries.
Resumen de: US2025219148A1
The present application relates to an electrolyte, comprising an organic solvent and an electrolyte salt dissolved in the organic solvent, wherein the electrolyte salt comprises an alkali metal double salt, the alkali metal double salt containing lithium ions and at least one other alkali metal ion other than lithium ions. The present application also relates to a corresponding secondary battery, battery module, battery pack and power consuming device. In the electrolyte, an alkali metal double salt containing lithium ions and at least one other alkali metal ion other than lithium ions is used in an electrolyte salt, such that the cycling performance of a secondary battery can be effectively improved and the cycle life of the secondary battery can be prolonged without introducing additional impurities and causing side reactions.
Resumen de: US2025219241A1
An energy storage device is provided, including at least one energy storage module, and each energy storage module includes a box body, a plurality of batteries, and a smoke exhaust assembly. The plurality of batteries are arranged in the box body, wherein each battery includes a battery box and a plurality of battery cells, wherein the battery cells include a pressure relief mechanism and electrode terminals; the pressure relief mechanism is arranged on a first wall of the battery cells; the electrode terminals are arranged on a second wall of the battery cells; the second wall is different from the first wall; and the battery box is provided with a first exhaust port. The smoke exhaust assembly is connected to the first exhaust port of each battery, and is configured to discharge smoke discharged by the plurality of batteries to the outside of the box body.
Resumen de: US2025219239A1
A battery pack case includes an accommodating space for accommodating a plurality of battery cells; a plurality of mutually independent first air passages are provided in the battery pack case, wherein the cells of a plurality of battery cell units are suitable for communicating with the outside of the battery pack through separate first air passages. A battery pack includes a batter pack case and a plurality of batter cell units wherein each battery cell of the plurality of battery cell units communicates with the outside of the battery pack through a separate first air passage and a plurality of battery cell units are provided in the accommodating space.
Resumen de: US2025219166A1
A high voltage box includes: a box, a cover plate, and electrical elements received in a receiving space inside the box. A top of the box defines an opening, and the cover plate covers the opening of the box. The box includes a first side panel and a second side panel opposite to the first side panel; the receiving space is defined between the first side panel and the second side panel; the electrical elements include a battery management system, a positive-electrode fuse arranged on a positive-electrode circuit and/or a negative-electrode fuse arranged on a negative-electrode circuit. The battery management system is located on a side of the receiving space near the first side panel; the positive-electrode fuse and/or the negative-electrode fuse is located on another side of the receiving space near the second side panel.
Resumen de: US2025219099A1
An electrochemical cell including a positive electrode (e.g., a cathode) and a negative electrode (e.g., an anode), at least one of which includes an integrated ceramic separator. An integrated ceramic separator may include a plurality of ceramic particles. In some examples, an interlocking region may be disposed between the integrated ceramic separator layer and a corresponding electrode layer, the region including a non-planar boundary between the two layers. In some examples, the electrochemical cell includes a polyolefin separator disposed between the positive electrode and the negative electrode. In some examples, both the positive electrode and the negative electrode include an integrated ceramic separator. In these examples, the positive electrode and the negative electrode may be calendered together such that the integrated separator layers merge and become indistinguishable from each other.
Resumen de: US2025219096A1
A sub-assembly for an electrode-solid electrolyte, an all-solid-state battery comprising the same, and a method of preparing the all-solid-state battery. The electrode-solid electrolyte sub-assembly includes an electrode including a porous current collector having a first side and an opposite second side; an elastic layer including an elastic polymer and disposed on the first side of the porous current collector; and a solid electrolyte disposed on the opposite second side of the porous current collector. The porous current collector includes a plurality of internal pores and the elastic polymer is disposed in at least one internal pore of the plurality of internal pores of the porous current collector.
Resumen de: US2025219097A1
A polymer satisfies: 5≤m/n≤1000, in which n represents a mass of the polymer, in grams, and m represents a mass, in grams, of a first substance that is obtained adding the polymer to a first solvent at a first temperature to form a polymer system, allowing the polymer system to stand for 8 hours at the first temperature and for ≥24 hours at a second temperature; and then filtering the polymer system through a 200-mesh screen, to obtain remains on the screen as the first substance and wherein the first temperature is higher than the second temperature.
Resumen de: US2025219095A1
A positive electrode sheet, a secondary battery, a battery pack and an electricity-consumption equipment are provided. The positive electrode sheet includes a positive current collector. At least one surface of the positive current collector is provided with a positive active material layer. In any 25 μm×25 μm region of a cross section of the positive active material layer, a percentage of an area of a first positive active material with a cracked structure to a total area of the region is a %, 5≤a≤20.
Resumen de: US2025219149A1
A non-aqueous electrolyte includes: a first sodium salt, where the first sodium salt includes at least one of sodium hexafluorophosphate, sodium hexafluoroarsenate, sodium perchlorate, and sodium trifluoroacetate; and a second sodium salt, where the second sodium salt includes one, two, or more of a sodium salt having sulfonate, a sodium salt having oxalate, a sodium salt having phosphate, and a sodium salt having borate.
Resumen de: US2025219165A1
A battery pack includes a battery pack case, a switch device, and a plurality of battery cell units. The plurality of battery cell units are arranged in the battery pack case, a positive electrode of each of the battery cell units is configured to be electrically connected to a positive terminal of the power distribution unit, and a negative electrode of each of the battery cell units is configured to be electrically connected to a negative terminal of the power distribution unit. In addition, the plurality of battery cell units are sequentially arranged in a series circuit of the battery pack, and two ends of the series circuit are respectively connected to the positive terminal and the negative terminal of the power distribution unit. The switch device is arranged in the series circuit for connecting or disconnecting the series circuit.
Resumen de: US2025219213A1
A battery cell includes a housing. The housing includes a first wall and a second wall, where the first wall and the second wall are welded to form a first welding zone, the first wall includes a first zone and a second zone arranged along a first direction, the first zone is arranged adjacent to the first welding zone, a thickness of the first zone is greater than a thickness of the second zone, and the first direction is parallel to a thickness direction of the second wall.
Resumen de: US2025219249A1
Systems and methods are provided herein for generating wave pair segments for use in an electrode assembly. For example, a web of ionically permeable and electrically isolating separator material may be coated on a first side with anodically active material. The web may then be coated on a second side, opposite the first side, with cathodically active material. The web may then be cut into equally sized wave-pair segments. A web of cathode current collector material may be cut into a plurality of cathode current collectors and a web of anode current collector material may be cut into a plurality of anode current collectors. The wave-pair segments and current collectors may be interleaved to form an electrode assembly where the alignment between the anode and cathode is fixed.
Resumen de: US2025219172A1
A temperature sampling assembly includes a sampling circuit board, a temperature sensing chip, and a heat conducting base. The sampling circuit board includes a sampling part. The temperature sensing chip is mounted at the sampling part and is electrically connected to the sampling circuit board. The heat conducting base includes a first side and a second side opposite each other in a thickness direction. The first side is fixedly adhered to the sampling part through a fixing adhesive. The second side is configured to be connected to a to-be-sampled component.
Resumen de: US2025219154A1
A nonaqueous electrolyte secondary battery including: an electrode group including a first electrode having a first current collector, a second electrode having a second current collector, and a separator interposed between the first electrode and the second electrode; a nonaqueous electrolyte; and a battery case housing the electrode group and the nonaqueous electrolyte. The first electrode and the second electrode are wound with the separator interposed therebetween, in which an outermost layer of the first electrode is disposed further outside than an outermost layer of the second electrode. The winding-finish end of the first electrode is an end of an excess portion which is wound around an outer surface of the first electrode on the inner layer side, with neither the second electrode nor the separator interposed therebetween, and the excess portion is an exposed portion of the first current collector.
Resumen de: US2025219159A1
An electrode for a battery cell includes a current collector and an active material layer arranged on the current collector. In some examples, the active material layer includes an active material, a conductive additive, a positive temperature coefficient (PTC) material, and a binder. In other examples, the active material layer includes active material with an outer coating including PTC material. In other examples, a PTC layer is arranged on the active material layer.
Resumen de: US2025219157A1
A battery cell comprising a negative electrode, a lithium-manganese rich positive electrode, and an electrolyte with a methylene methanedisulfonate additive is presented. The electrolyte with the methylene methanedisulfonate additive saturates the negative and lithium-manganese rich positive electrodes such that during cycling of the battery, a positive electrolyte interface forms on a surface of the lithium-manganese rich positive electrode. The positive electrolyte interface results in a direct current impedance of the battery cell, for a given state of charge, being less than a direct current impedance of an otherwise same battery cell without the methylene methanedisulfonate additive.
Resumen de: US2025219174A1
An electrical apparatus may include a first battery attachment portion configured to have a first battery attached thereto, a second battery attachment portion configured to have a second battery attached thereto, a first light emitting device configured to emit light according to a state of the first battery, a second light emitting device configured to emit light according to a state of the second battery, and a battery status indicator. The battery status indicator may include a lens configured to transmit the light emitted by the first light emitting device and the light emitted by the second light emitting device and at least one indicator configured to indicate the light transmitted through the lens.
Resumen de: US2025219144A1
This application provides an electrolyte for a sodium secondary battery, a sodium secondary battery, and an electric device. An electrolyte for a sodium secondary battery is provided, where the electrolyte includes an additive, and the additive includes a sulfate ester compound or a sulfonate ester compound. In this application, through the addition of an additive, including a sulfate ester compound or a sulfonate ester compound, in the electrolyte, the high-temperature cycling performance of the battery can be improved, the high-temperature gas generation phenomenon of the battery can be alleviated, and the electrochemical performance and safety performance of the battery can be improved.
Resumen de: US2025219214A1
Provided are a battery cell, a battery, and an electrical apparatus, where the battery cell includes an electrode assembly, a case, and a current collecting end cover. The electrode assembly has a first tab, the case defines an accommodation space and an opening located at an end of the accommodation space, the accommodation space being used to accommodate the electrode assembly, and the current collecting end cover is fixedly connected to the case, the current collecting end cover sealingly covers the opening of the case, and the current collecting end cover is electrically connected to the first tab.
Resumen de: US2025219170A1
The present disclosure relates to a battery manufacturing system including: a first rack and a second rack, each of which includes a charging and discharging room including an inlet on one surface and accommodating a plurality of battery cells through the inlet, and which are aligned in parallel with each other; and a transport crane, which is provided between the first rack and the second rack, introduces and withdraws a plurality of battery cells accommodated in a charging and discharging transport member into and out of the charging and discharging room through the inlets arranged to face each other, and is movable in the height direction of the first rack or the second rack and in a direction perpendicular to the height direction, and a controlling method thereof.
Resumen de: US2025219153A1
A cylindrical battery comprises an electrode body formed by winding a positive electrode and a negative electrode. The positive electrode includes: a positive electrode core on which a positive electrode tab is welded at a point along the winding direction; and a positive electrode mix layer which is formed on both surfaces of the positive electrode core. The positive electrode tab includes slit burrs which are formed at the ends in the width direction. In a state in which the positive electrode is wound, the positive electrode tab is welded so that the slit burrs are positioned outside the winding and on the side opposite the surface where the positive electrode tab is welded to the electrode core.
Resumen de: US2025214862A1
It is an object of the present invention to improve a volumetric energy density while maintaining a capacity retention rate of an active material that constitutes an electrode of a lithium-ion secondary battery. Provided is a method of producing a sulfur-based active material, the method comprising the steps of: (1) mixing an acrylic resin, sulfur, and an iron compound comprising a divalent or trivalent iron ion to obtain a raw material; and (2) baking the raw material; wherein the iron compound has a median diameter of 12.00 μm or less.
Resumen de: US2025215646A1
A separator for an electrochemical element is shown, in which at least 50% of the mass of the separator is formed by fibrillated regenerated cellulose fibers, wherein, including the fibrillated regenerated cellulose fibers, at least 70% and at most 100% of the mass of the separator is formed by cellulose fibers, and wherein the separator is calendered, and wherein under tensile load in the machine direction in accordance with ISO 1924-2:2008, the separator reaches its 0.1% yield point at an elongation of no less than 0.5% and no more than 2.0%. A method of manufacturing such a separator is also disclosed.
Resumen de: US2025216366A1
An inspection method of an elongated coated sheet including: (i) at a starting end position located at a position of a starting-end predetermined distance from a coating starting end, measuring a starting-end moisture amount and comparing the starting-end moisture amount with a starting-end specified value; (ii) at a terminal end position located at a position of a terminal-end predetermined distance from a coating terminal end, measuring a terminal-end moisture amount and comparing the terminal-end moisture amount with a terminal-end specified value; and (iii) when the starting-end moisture amount is smaller than the starting-end specified value and the terminal-end moisture amount is smaller than the terminal-end specified value, regarding the elongated coated sheet between the starting end position and the terminal end position as an acceptable product.
Resumen de: US2025215523A1
Black mass from disused lithium batteries is leached for recovery of various metals in a process that includes precipitation, solvent exchange, ion exchange, and salt splitting to create multiple product streams for recovery of pure value products. Most typically, the process is a closed-loop process and allows for production of metallic cobalt and nickel, EMD, and a high purity lithium hydroxide or carbonate product with minimal generation of waste streams.
Resumen de: US2025215527A1
This method for leaching an electrode material is a method for subjecting an electrode material of a lithium ion secondary battery to acid leaching, the method including a leaching step of reacting the electrode material of a lithium ion secondary battery with sulfuric acid to obtain a leachate in which metals contained in the electrode material are leached, in which the leaching step includes a sulfuric acid adding step of adding the sulfuric acid to the electrode material to obtain a sulfuric acid-added electrode material, a kneading step of kneading the sulfuric acid-added electrode material to form a leaching paste, and a diluting step of diluting the leaching paste with water.
Resumen de: US2025218716A1
A protective element includes a fuse element having a cut portion between a first end portion and a second end portion and electrified in a first direction from the first end portion toward the second end portion; a movable member, having a projection portion, and a recessed member having a recessed portion allowing the projection portion to be inserted therein, which are disposed facing each other such that the cut portion is sandwiched therebetween; and a pressing means applying a force so as to shorten a relative distance in a direction in which the cut portion is sandwiched between the movable member and the recessed member. The cut portion is cut due to the force of the pressing means at a temperature equal to or higher than a softening temperature of the fuse element. The cut portion of the fuse element has one of or both a penetration hole and a thin portion in at least part thereof.
Resumen de: WO2025138407A1
An electric vehicle endurance system composed of battery formation and electrolyte injection, ventilation, and cooling systems, comprising a battery formation and electrolyte injection system, a battery case air filtration system and an annular battery cell cooling system which are arranged on an electric vehicle. When the electric vehicle is used, the temperature of an annular battery cell rises during operation of the annular battery cell, and the annular battery cell cooling system reduces the temperature of the annular battery cell. The battery case air filtration system is responsible for discharging and supplementing gas generated during the operation of the annular battery cell. The electrolyte lost during the operation of the annular battery cell is supplied by the battery formation and electrolyte injection system. The present application can simultaneously provide the following formation methods, i.e., low-temperature formation, small current formation and open formation; the formation process of the annular battery cell is delayed to the electric vehicle; and low-temperature formation, small current formation and open formation are realized on the electric vehicle. Battery cells and battery cases produced by means of the method are transported across countries and continents by air to designated locations for installation in electric vehicles before being formed.
Resumen de: WO2025138431A1
A positive electrode active material and a lithium-ion battery. The positive electrode active material is lithium iron phosphate coated with a carbon layer, and the ID/IG value of the positive electrode active material is 0.75-1.2. In the Raman spectrum of the positive electrode active material, the peak intensity at a wave number of 1360 cm-1 is used as ID, and the peak intensity at a wave number of 1580 cm-1 is IG.
Resumen de: WO2025138412A1
A balloon lamp power quick-release structure, comprising: a lamp base (100) supported on the ground; a battery module (200) sliding in a direction perpendicular to the ground and detachably connected to the lamp base (100), wherein the battery module (200) comprises a pole (201) and a plurality of batteries provided in the pole (201); and a locking assembly (300) fixing the pole (201) on the lamp base (100). By means of the motion of a handle (450), the apparatus can control the closure and output power magnitude of the batteries, which means that a user can regulate the degree of closure and brightness level of a light bulb by means of a simple mechanical mode, that is, the movement of the handle (450). A mechanical control switch structure is more durable and reliable, and easier to maintain, and may be more durable in some environments.
Resumen de: WO2025138925A1
The present application discloses a sealing performance testing device and a battery cell manufacturing apparatus. The sealing performance testing device comprises a test chamber, a negative pressure mechanism and a helium leak detection device. The test chamber comprises an accommodation compartment, and the accommodation compartment is used for accommodating battery cells. The negative pressure mechanism is communicated with the accommodation compartment, and the negative pressure mechanism is used for vacuumizing the accommodation compartment. The helium leak detection device is communicated with the accommodation compartment. Helium is contained in the battery cells, and the sealing performance testing device is used for detecting helium leaking into the accommodation compartment from the battery cells. The above structure allows for sealing performance testing of battery cells, reduces the impact of residual helium after a helium filling process on test results, and improves the testing efficiency and accuracy.
Resumen de: WO2025138116A1
The present disclosure provides an electrolytic method for valuable metal ions in waste lithium battery powder, comprising the following steps: obtaining n different types of waste positive electrode battery powder, wherein n is greater than or equal to 2, and n is a positive integer; classifying the n types of waste positive electrode battery powder to separately obtain anode treatment mixed powder and cathode treatment mixed powder; separately carrying out slurry preparation operation on the anode treatment mixed powder and the cathode treatment mixed powder to obtain an anode slurry and a cathode slurry; carrying out ionization operation on the anode slurry and the cathode slurry by means of an electrolytic device; and filtering the cathode slurry that has undergone the ionization operation to obtain a cathode post-electrolysis liquid, i.e., a valuable metal ion solution. Efficient and comprehensive ionization recovery of valuable metal ions in two or more types of waste positive electrode powder is achieved, and the operation is simple and environmentally-friendly.
Resumen de: WO2025138906A1
An energy storage cabinet (1) and an energy storage electrical cabinet (10). The energy storage cabinet (1) comprises: a cabinet body (11); a barrier plate (13), which divides a converter compartment (115) into a cold air cavity (1151) and a hot air cavity (1152), the cold air cavity (1151) being in communication with air inlets (1111), and the hot air cavity (1152) being in communication with air outlets (1121); and an energy storage converter (14), which is provided with a heat dissipation air duct, air intake ports (141) being in communication with the cold air cavity (1151), and air discharge ports (142) being in communication with the hot air cavity (1152).
Resumen de: US2025214839A1
The present disclosure discloses a porous iron phosphate and a preparation method thereof. The preparation method includes the following steps: (1) mixing a phosphorus-iron solution with an aluminum-containing alkaline solution to allow a co-precipitation reaction; (2) subjecting a reaction system obtained in step (1) to solid-liquid separation (SLS) to obtain a precipitate; (3) subjecting the precipitate obtained in step (2) to a reaction with phosphine under heating; (4) after the reaction is completed, cooling a product obtained in step (3), and soaking the product in a weak acid solution; and (5) subjecting a system obtained in step (4) to SLS to obtain a solid, and subjecting the solid to aerobic calcination to obtain the porous iron phosphate.
Resumen de: US2025214484A1
A power supply control device has a charging/discharging unit and a control unit that controls the charging/discharging unit. The charging/discharging unit performs a discharging operation for supplying power to a load based on power from a power storage unit, a regeneration operation for supplying power to a power supply unit based on power from the power storage unit, and a charging operation for supplying power to the power storage unit based on power from the power supply unit. The control unit determines the degree of degradation of the power storage unit, based on the value of a voltage of the power storage unit and the value of a current flowing through the power storage unit during at least one of the regeneration operation and the charging operation performed after the regeneration operation.
Resumen de: US2025214840A1
Process for the manufacture of a fluoride doped cathode active material with olivine crystal structure wherein said process comprises the steps of (a) providing a source of phosphate, source of metal other than lithium selected from iron and, optionally, of at least one further element M1 selected from titanium, vanadium, nickel, yttrium, copper, magnesium, zinc, aluminum, cobalt and manganese, wherein at least 55 mol-% of said metal other than lithium is iron, and wherein said source may be formed from one or more compounds, (b) providing a source of lithium that contains 0.01 to 2.5% by weight of fluoride, uniformly dispersed within said source of lithium, wherein the source of lithium is selected from lithium hydroxide and lithium carbonate, (c) mixing said source of phosphate, of transition metal with said fluoride-containing source of lithium and with additional source of lithium containing less fluoride, and, optionally, with hydrocarbon, (d) optionally, performing a reaction between at least two components of the mixture from step (c), thereby obtaining an adduct, (e) treating the mixture obtained from step (c) or the adduct from step (d) at a temperature in the range of from 400 to 1000° C. under a reducing or inert atmosphere
Resumen de: US2025214838A1
One embodiment of the present disclosure includes a method of producing high-purity alkali metal sulfide including mixing an alkali metal sulfide salt precursor and a reducing agent to form a mixture, reducing the mixture to obtain alkali metal sulfide; and purifying the obtained alkali metal sulfide.
Resumen de: US2025219248A1
Disclosed are a separator for a rechargeable lithium battery, and a rechargeable lithium battery including the same, the separator for a rechargeable lithium battery including a porous substrate; a heat resistant layer on one surface of the porous substrate; and an adhesive layer on the other surface of the porous substrate, wherein the heat resistant layer includes a first binder and inorganic particles, the first binder includes at least one selected from polyacrylate, polyacrylic acid, polyacrylonitrile, polyvinyl alcohol, polysulfonic acid, polyacrylamide, polyamide, polyurea, polyurethane, and a copolymer thereof, the adhesive layer includes a second binder and a third binder, the second binder includes a copolymer including a first unit derived from a vinyl aromatic monomer, a second unit derived from an alkyl acrylate, and a third unit derived from a phosphonate-based monomer, and the third binder includes a fluorine-based polymer.
Resumen de: US2025219173A1
This charge control device charges a lithium metal battery, which is a secondary battery in which lithium metal is used in a negative electrode, using a prescribed normal charge mode and a recovery charge/discharge mode. In the recovery charge/discharge mode, the lithium metal battery is temporarily discharged and then is charged for a longer time than in the normal charge mode. A detection unit detects a battery voltage, which is the voltage of the lithium metal battery. A calculation unit calculates the self-discharge rate of the lithium metal battery on the basis of a change in the battery voltage. A recording unit records a history of the self-discharge rate. An assessment unit assesses the need for charging by the recovery charge/discharge mode on the basis of a change in the self-discharge rate in time series in the history.
Resumen de: US2025219211A1
A secondary battery is disclosed. The secondary battery includes an electrode assembly, a case including an opening for insertion of the electrode assembly, and a cap plate including a bonding area welded to the case and closing the opening. The bonding area may include one or more support surfaces in contact with and supported by the case; and one or more chambers formed with a portion of the bonding area spaced apart from the case by the support surface.
Resumen de: US2025219151A1
A sodium secondary battery includes a positive electrode plate, a negative electrode plate, a first electrolyte located on the side of the positive electrode plate, and a second electrolyte located on the side of the negative electrode plate, where the first electrolyte and the second electrolyte contain different organic solvents, the first electrolyte contains an ester solvent, a sulfone solvent, or a fluoroether solvent, and the second electrolyte contains an ether solvent or an amide solvent. With different organic solvents matched with the positive/negative electrode plate respectively, the electrochemical stability window width of the battery is optimized while gas generation and swelling of the battery are alleviated.
Resumen de: US2025219164A1
A positive electrode plate includes a positive electrode current collector and a positive electrode active material layer. A safety coating is provided between the positive electrode current collector and the positive electrode active material layer, and the safety coating is disposed on a surface of the positive electrode current collector. The safety coating contains substance I, and the substance I is formed by dehydration of a first substance via a drying process of the positive electrode plate, where the first substance includes silica sol and/or alumina sol. The surface of the current collector of the positive electrode plate is provided with the safety coating, where the safety coating has good high-temperature resistance and can effectively protect the aluminum foil at high temperatures, thereby enhancing the thermal safety performance of the lithium-ion battery.
Resumen de: US2025219155A1
An electrochemical cell including: a first electrode including iron, wherein a density (D) of the iron in the first electrode is greater than 2.11 g/cm3 and less than 7.87 g/cm3, based on a total weight of the iron and a total volume of the first electrode; an alkaline electrolyte; a second electrode; and an additive comprising a metal M, wherein the additive is effective to facilitate oxidation of the iron to Fe3-xMxO4, wherein 0≤x<1, and wherein a specific discharge capacity (Q) of the first electrode in the first discharge plateau is represented by Formula 1:Q>((7.87/D)−1)*352 mAh/gram of iron, based on a total weight of iron in the first electrode (1).
Resumen de: US2025219150A1
A lithium-ion battery and an electric apparatus are disclosed. The lithium-ion battery includes: a positive electrode plate, a negative electrode plate, a separator, and an electrolyte. The separator is located between the positive electrode plate and the negative electrode plate. When the lithium-ion battery is charged at 1C to a state of charge of 80% SOC, a potential Panode of a negative electrode satisfies: 0.09 V (vs. Li+/Li)<Panode<0.15 V (vs. Li+/Li).
Resumen de: US2025219171A1
Some embodiments disclosed herein are directed to battery management systems utilizing thin-film pressure sensors to determine anomalous conditions associated with battery modules. Some embodiments may include receiving a pressure measurement from the thin-film pressure sensor disposed between two battery cells in a battery module, and determining, based on the pressure measurement from the thin-film pressure sensor, an abnormal condition associated with the battery module. Other embodiments may be disclosed or claimed.
Resumen de: US2025219176A1
A recycling and enhancement process for graphite from a Li-ion recycling stream includes pitch coating for enhancing tap density and BET surface area compared to virgin materials and commercial graphite, and provide similar, if not greater performance. A multi-step pitch coating process includes two or more pitch coating stages at different temperatures. A first pitch mixing and coating at a lower temperature is followed by a second pitch mixing and coating at a higher temperature, which results in a pitch coated purified graphite having improved surface characteristics over recycled graphite and comparable or better properties compared to virgin (non-recycled) graphite.
Resumen de: US2025219264A1
A battery cell, a battery, an electric device and a welding apparatus are disclosed. The battery cell includes a housing, an electrode unit and an electrode lead member. The electrode unit is accommodated in the housing and includes a plurality of electrode tab sets arranged in a stacked way, and each of the electrode tab sets includes at least one electrode tab. The electrode lead member is arranged at the housing and includes a plurality of connection portions, each of the connection portions is welded to at least one of the electrode tab sets, and a plurality of electrode tab sets welded to the plurality of connection portions of the electrode lead member have a same polarity. By providing a plurality of connection portions on the electrode lead member, a layer amount of the electrode tabs welded to a single connection portion can be reduced.
Resumen de: WO2025139146A1
An electrode sheet, a jelly roll, a battery and a preparation method for the jelly roll, which relate to the technical field of batteries. The electrode sheet comprises a current collector, an active material layer and a reinforcing layer. The current collector comprises a tab and a main body, wherein one side of the tab is connected to the main body; the active material layer is arranged on the main body; and the reinforcing layer is arranged at the end of the tab that is close to the main body.
Resumen de: US2025219160A1
An aluminum battery includes a positive electrode, a negative electrode, a separator, and an electrolyte. The separator is disposed between the positive electrode and the negative electrode. The electrolyte is impregnated into the separator, the positive electrode, and the negative electrode. The electrolyte includes aluminum halide, ionic liquid, and an additive, and the additive includes an isocyanate compound.
Resumen de: US2025219262A1
A cylindrical battery is provided. The cylindrical battery includes a plurality of positive electrode sheets and a plurality of negative electrode sheets. The plurality of positive electrode sheets and the plurality of negative electrode sheets are alternately stacked along a height direction of the cylindrical battery, with a diaphragm provided between every two adjacent positive electrode sheet and negative electrode sheet. The cylindrical battery further includes a positive electrode current collecting column. The positive electrode current collecting column penetrates the plurality of positive electrode sheets, the plurality of negative electrode sheets and the plurality of diaphragms along an axial direction of the cylindrical battery. The positive electrode sheets are electrically coupled to the positive electrode current collecting column. The positive electrode current collecting column is electrically coupled to a top cover. The negative electrode sheets are electrically coupled to a housing.
Resumen de: US2025219152A1
A method of manufacturing an all-solid-state battery includes: a step of forming a conductive first coating layer in a first region; a step of forming a second coating layer adjacent to the first coating layer in a second region, the second coating layer being easier to peel off than the first coating layer; a step of forming a first electrode layer continuously over the surfaces of the first and second coating layers: a step of forming a solid electrolyte layer on the surface of the first electrode layer; a step of forming a second electrode layer on the surface of the solid electrolyte layer; a step of hot pressing the obtained current collector-electrode composite; a step of removing the second coating layer with each layer thereon from the first current collector; and a step of laminating a second current collector on the surface of the second electrode layer.
Resumen de: US2025219175A1
Disclosed is a secondary battery, comprising an electrode assembly; an electrode lead attached to the electrode assembly; a case including a receiving portion in which the electrode assembly is received such that a part of the electrode lead is exposed, and a sealing portion configured to seal up the electrode assembly; and a gas adsorption element disposed in the receiving portion, wherein the gas adsorption element includes a gas adsorption film in which a gas adsorption material is dispersed in a polyolefin matrix resin in a predetermined weight range.
Resumen de: US2025219263A1
To provide a nonaqueous electrolyte battery capable of suppressing breakage of tabs even when an electrode stack constituting the nonaqueous electrolyte battery expands due to charge and discharge. Each tab is divided into a part to which tension is applied at the time of volume expansion of an electrode stack and a part where tabs converge (electrical connection part with the outside), and the tension applied to the part of each tab where the tabs converge is made equal. Specifically, a tab fixing member is disposed between negative electrode tabs and/or between positive electrode tabs, thereby suppressing an increase in tension between the tab fixing member and a negative electrode tab convergence part and/or a positive electrode tab convergence part.
Resumen de: US2025219258A1
A CCS component, a battery with the same, and an electric apparatus are disclosed. The CCS component includes: an isolation plate, where the isolation plate is a vacuum formed plastic piece, and a side surface of the isolation plate in thickness direction is a first surface; and connecting pieces, where the connecting pieces are connected to the isolation plate and arranged on a side on which the first surface of the isolation plate is located, and the connecting piece is configured to electrically connect an electrode pole of a battery cell. According to the CCS component application, the isolation plate and the connecting pieces are provided, and the isolation plate is provided as a vacuum formed plastic piece, which can give a high production efficiency of the isolation plates, thereby greatly improving the production efficiency of the CCS components and reducing the production costs of the CCS components.
Resumen de: US2025219184A1
An exemplary embodiment of the present disclosure provides a battery system comprising one or more battery modules, one or more thermal conduits, and one or more thermoelectric coolers. Each of the one or more battery modules can comprise a plurality of battery cells. The one or more thermal conduits can be coupled to the one or more battery modules. The one or more thermoelectric coolers can be coupled to the one or more thermal conduits. The one or more thermal conduits can be configured to allow thermal energy to flow from the one or more battery modules to the one or more thermoelectric coolers. The thermoelectric coolers can be configured to dissipate thermal energy received from the one or more battery modules via the one or more thermal conduits.
Resumen de: US2025219179A1
The invention relates to a method for preparing and evaluating lithium-ion batteries, having at least one step in which the batteries (2, 10) or comminuted in the presence of an aqueous medium (12), wherein the batteries (2, 10) are comminuted with a remaining charge of maximally 30% in a comminuting device (73) while adding water (12), and the water (12) is supplied in such a quantity and at such a temperature that the mixture is not heated above a temperature of more than 40° C., preferably above 30° C., during the comminuting process. The invention also relates to a corresponding facility (71).
Resumen de: US2025219186A1
A battery pack and a battery apparatus utilize cooling fluid and cooling fluid circuitry for cooling battery cells in a normal operating state in which an event is not detected and extinguishing the event in an abnormal state. The cooling fluid circuitry controls inflow and outflow rates of the cooling fluid, such as a fluid pump or a fluid valve connected to an inlet and an outlet of the battery pack. In a normal operating state in which an event, such as ignition, explosion, or gas emission of battery cells, is not detected, the operating heat resulting from charging and discharging of battery cells may be quickly cooled through immersion-type liquid cooling of the battery cells. In response to the detection of an event, the event may be quickly extinguished using the cooling fluid by raising the fluid level of the cooling fluid to a preset elevated level.
Resumen de: US2025219181A1
A method of recovering ternary valuable metals from a waste cathode active material includes a step of leaching valid metals in a waste cathode active material powder under acidic conditions, and a step of recovering the leached valid metals, wherein, in the step of leaching valid metals in the waste cathode active material powder under acidic conditions, an oxidizing agent is further added to selectively leach lithium. The method further comprises a step of leaching cobalt (Co) and nickel (Ni) from a residue separated from the lithium leachate leached by the step of leaching valid metals in the waste cathode active material powder under acidic conditions and recovering manganese dioxide (MnO2) as a residue, a step of reducing the residue manganese dioxide, and a step of leaching the manganese dioxide.
Resumen de: US2025219183A1
A system for recycling a Lithium-ion battery includes an electrolyte bath, a stack of cells, a sheet of lithium metal, and a circuit. The stack of cells is removed from a container of the battery without dismantling the cells and immersed in the electrolyte bath. Each cell includes a first electrode and a second electrode. The first electrodes of the cells are connected together by first connections. The second electrodes of the cells are connected together by second connections. The sheet of lithium metal is immersed in the electrolyte bath. The circuit is connected to the sheet of lithium metal and one of the first electrodes of the cells. The circuit is configured to re-lithiate the cells according to an amount of re-lithiation predetermined for the cells.
Resumen de: US2025219261A1
A power storage device includes: an electrode body formed by winding a positive electrode, a negative electrode, and a separator; a cap disposed close to one end of the electrode body in a winding axis direction of the electrode body; and a plurality of positive electrode tabs connecting the positive electrode to the cap, the plurality of positive electrode tabs at least partially overlapping each other forming an overlapped part that is joined to the cap.
Resumen de: US2025219180A1
A method for recovering an active material from a power storage device includes a processing step of processing at least a part of an electrode of a power source device including the electrode to which an active material adheres, such that the part becomes a corrugated shape.
Resumen de: US2025219188A1
A battery self-heating circuit, includes a first battery group, a second battery group, a first capacitor, a second capacitor, multiple phases of bridge arms, and multiple phase of windings, which correspond to the multiple phases of bridge arms on a one-to-one basis.
Resumen de: US2025219185A1
An apparatus and method for controlling an internal environment of a battery pack, the apparatus including a temperature sensor which measures an internal temperature of a battery pack, a humidity sensor which measures an internal humidity of the battery pack, a heating apparatus which increases the internal temperature of the battery pack and a processor which controls an internal environment of the battery pack by calculating a dew point based on the measured internal temperature and internal humidity, setting a threshold value based on the dew point, determining whether a current temperature reaches the threshold value according to changes in the internal temperature and the internal humidity and applying a control signal to the heating apparatus so that the current temperature does not reach the threshold value.
Resumen de: US2025219191A1
A power tool, a charging device, a battery pack, and a heat dissipation structure. The power tool includes a housing, a printed circuit board assembly, and a heat absorber. The printed circuit board assembly is disposed in the housing. The heat absorber is in thermal contact with at least part of the printed circuit board assembly and configured to absorb heat generated by the printed circuit board assembly. The heat absorber includes a hydrogel.
Resumen de: US2025219199A1
A battery cell, a battery, and an electric device. The battery cell includes a shell, electrode terminals, at least one electrode assembly, a support frame and liquid retaining layer(s). The shell has a wall part, and the electrode terminals are provided at the wall part. The electrode assembly is accommodated in the shell. The electrode assembly has a main body and tabs. In the thickness direction of the wall part, the tabs protrude from an end of the main body facing the wall part and connected to the electrode terminals. In the thickness direction of the wall part, the support frame is provided between the wall part and the main body. The support frame is configured to support the main body. The liquid retaining layer(s) are provided at the support frame, and the liquid retaining layer(s) are configured to absorb and store the electrolytic solution in the shell.
Resumen de: US2025219190A1
A battery energy storage device includes a battery module. The battery cell is sheet-like, and the two surfaces of the battery cell along the thickness direction are the main heat dissipation surface of the battery cell. The box body comprises a bottom plate and a plurality of cooling plates arranged on the bottom plate; a holding space is formed between two adjacent cooling plates to accommodate the battery cell. The battery cell is installed in the accommodating space, and the main cooling surface on both sides of the battery cell is respectively fitted with two adjacent cooling plates.
Resumen de: US2025219196A1
Battery assemblies are disclosed. In an embodiment, a battery assembly includes a case, a plurality of battery cells accommodated in a first inner space of the case, and a plurality of particle-shaped insulating materials accommodated in a second inner space of the case.
Resumen de: US2025219195A1
A battery pack includes a casing, a pipe assembly, and first, second and third battery modules disposed within the casing. The pipe assembly includes an input pipe, an output pipe set, a communication pipe set, and first, second, and third pipe sets. The first pipe set is disposed at a first side portion of the casing to be coupled to the input pipe and coupled to the first battery modules. The second and third pipe sets are disposed at a second side portion of the casing to be coupled to the second and third battery modules, respectively. The output pipe set is coupled to the second battery module and the third battery module. The communication pipe set is disposed at a back portion of the casing, coupled to the first battery module, and coupled in parallel to the second battery module and the third battery module.
Resumen de: US2025219202A1
The present invention pertains to a method for producing a battery equipped with a laminate-film outer package in which an electrode body is outer-packaged with a laminate film. The present invention includes: an outer-packaging step for outer-packaging the electrode body with a laminate-film outer package; and a sealing step for sealing the periphery of the electrode body with the laminate-film outer package. The sealing step comprises: a first-stage sealing step for welding, while leaving a non-welded part at a leading end portion, an inner resin layer inward of the non-welded part; and a second-stage sealing step for heating and pressing the non-welded part, and pushing the inner resin layer outwardly, to thereby cover, with the inner resin layer, an end surface of a metal layer at the leading end of the laminate-film outer package.
Resumen de: US2025219193A1
This application relates to a thermal management component, a box assembly, a battery, and an electrical device. The thermal management component is applicable to the battery. The battery includes a battery cell. The thermal management component includes: a first heat exchange portion and a second heat exchange portion. The first heat exchange portion is configured to exchange heat with the battery cell. The second heat exchange portion is configured to exchange heat with emissions of the battery cell. In this way, the first heat exchange portion of the thermal management component can be utilized to exchange heat with the battery cell, and further, the second heat exchange portion can be utilized to exchange heat with the emissions of the battery cell, so that the internal temperature of the battery can be prevented from being increased by overtemperature of runaway gas generated by a thermally runaway battery cell.
Resumen de: US2025219192A1
The present disclosure provides a battery pack and a vehicle. The battery pack includes at least one first battery module, at least one second battery module, and a liquid cooling system. The second battery module and the first battery module are stacked in a first direction. The liquid cooling system includes a first liquid cooling plate and a second liquid cooling plate. The first liquid cooling plate is located at an end of the first battery module and between the first battery module and the second battery module. The second liquid cooling plate is located at an end of the second battery module away from the first battery module.
Resumen de: US2025219257A1
The present disclosure provides a connecting unit, a busbar, and a battery module. The connecting unit is configured to connect battery cells. The battery cells include at least a first battery cell and a second battery cell. The connecting unit includes a first positive connecting part configured to detachably connect a positive terminal of the first battery cell and electrically connected to the positive terminal of the first battery cell; and a first negative connecting part configured to detachably connect a negative terminal of the second battery cell and electrically connected to the negative terminal of the second battery cell. The first negative connecting part is connected to the first positive connecting part.
Resumen de: US2025219198A1
A thermal management system includes a battery thermal management subsystem having a first trunk path and a second trunk path. The first trunk path is configured to exchange heat with a first region of a battery, and the second trunk path is configured to exchange heat with a second region of the battery, where the first region and the second region are different. At least one of the first trunk path and the second trunk path exchanges heat with the battery. The system includes at least one first heat exchanger arranged at the battery thermal management subsystem and an air conditioning subsystem. The battery thermal management subsystem and the air conditioning subsystem exchange heat through the first heat exchanger.
Resumen de: US2025219259A1
A battery pack connector and a battery pack are provided. The connector may be configured to electrically connect a battery module inside the battery pack with an electric device outside the battery pack and include an insulation base and a connection portion. The insulation base may be provided with a first through hole. The connection portion may be embedded in the first through hole and fixed to the insulation base, and both ends of the connection portion extend out of the insulation base.
Resumen de: US2025219201A1
Disclosed are an exterior material for a rechargeable lithium battery and a rechargeable lithium battery including the same. An example embodiment provides an exterior material for a rechargeable lithium battery including a substrate; and a coating layer on an inner surface of the substrate, the coating layer including one or more metal organic frameworks selected from ZIF-8, MOF-177, Al-MIL-53, and Fe-BTC.
Resumen de: US2025219194A1
A battery pack apparatus includes a housing, a support frame, at least one battery cell module, a heat dissipation air duct, at least one first fan and a controller. The support frame is disposed within a accommodating space of the housing. The at least one battery cell module is mounted in the accommodating space via the support frame. The heat dissipation air duct is formed within the accommodating space. Two ends of the heat dissipation air duct are respectively in communication with air vents on the opposite sides of the housing. The at least one first fan is capable of bidirectional rotation, is disposed within the accommodating space, and is positioned adjacent to one of the air vents.
Resumen de: US2025219203A1
This exterior material for a power storage devices is composed of a laminate including at least a base material layer, a barrier layer, and a heat-fusible resin layer in this order, the base material layer is composed of two or more layers, the base material layer includes one or more polyester films, and the base material layer has a work hardening index of 2.5 or more and 4.5 or less in both the longitudinal direction and the width direction and a difference in the work hardening index in the longitudinal direction and the width direction of 1.4 or less.
Resumen de: US2025219080A1
A slurry for positive electrode film, including a lithium iron phosphate-based positive electrode active material, a dispersant, a binder resin, and a solvent, and the dispersant including a copolymer (A) having a nitrile group-containing structural unit and a structural unit derived from a conjugated diene in which unsaturated bonds are partially hydrogenated and a mass ratio of residual double bond (RDB) calculated by formula (1) satisfies 0.05 to 5 mass %: RDB (mass %)=(BD/(BD+HBD))×100 (1) (where BD is a mass ratio of a structural unit derived from a conjugated diene having unsaturated bond based on a total mass of a structural unit derived from a conjugated diene, and HBD is a mass ratio of a structural unit derived from a conjugated diene in which an unsaturated bond is hydrogenated to a total mass of a structural unit derived from a conjugated diene).
Resumen de: US2025219197A1
Battery modules and battery packs are disclosed. In an embodiment of the disclosed technology, a battery module may include a cell assembly including a plurality of battery cells and at least one thermal transfer blocking assembly interposed between two or more adjacent battery cells of the plurality of battery cells; a module housing including a main plate structured to support the cell assembly; at least one slit formed in the main plate and arranged to face the at least one thermal transfer blocking assembly; and a thermally conductive polymer disposed in the at least one slit. A melting point of the thermally conductive polymer may be lower than a melting point of the main plate.
Resumen de: US2025219228A1
The present invention relates to an electric energy storage (10) for a motor vehicle. A plurality of battery module groups (14) each comprise a plurality of battery modules (20) each of a plurality of battery cells. A plurality of containers (12) are stacked and each comprise a substantially frame-shaped container outer wall (18), wherein one of the plurality of battery module groups (14) is arranged in each of the plurality of containers (12). A plurality of fastening elements (16), which are elongated, extend through the container outer walls (18) of the plurality of containers (12) and fasten the containers (12) to one another. The elongated fastening elements (16) passing through all the containers (12) are advantageous in that they enable a modular, freely scalable design of the electric energy storage (10) with a free geometric configuration, low weight and costs, as well as simple, quick assembly and disassembly.
Resumen de: US2025219229A1
A replaceable battery including: a cell stack; and a case for accommodating the cell stack, in which the case includes: a first member having an L-shaped cross section that includes a bottom plate for supporting the cell stack; a second member having an L-shaped cross section that is arranged to face the first member; a first lid part for closing one opening part of the main body part; and a second lid part having a connector for closing the other opening part of the main body part, and in which the cell stack is arranged closer to a side plate of the first member, the case has a spatial region above the cell stack, and a region of the side plate of the first member overhanging the spatial region and a top plate of the second member are fastened together with a fastening member.
Resumen de: US2025219245A1
Disclosed herein is a novel system to improve the cycle life of a rechargeable battery utilizing a particular cellulose-based separator within such a cell and a charging procedure thereof such a cell at a rate of less than 1 hour and at a charging voltage in excess of 4.2 volts. With such a separator and charging methodology, such a rechargeable battery utilizes the capability of reducing moisture within the cell and further plating potential of lithium on the anode thereof. In such a manner, the cycle life of such a battery may be lowered, allowing for faster charging and longer charge retention for the battery and thus the subject device utilized. The overall system utilizing such a methodology as well as the specific battery exhibiting such improved cycle life capabilities and retained charge over time are thus encompassed within this disclosure.
Resumen de: US2025219252A1
A polyolefin microporous membrane, a method for manufacturing the same, and a separator including the microporous membrane are provided. The polyolefin microporous membrane including 60 wt % to 80 wt % of a polypropylene having a viscosity average molecular weight of 1×106 g/mol to 3×106 g/mol and 20 wt % to 40 wt % of a polyethylene having a weight average molecular weight of 1×105 g/mol to 10×105 g/mol is provided, wherein the polyolefin microporous membrane has a puncture strength of 0.25 N/μm or more, a gas permeability of 1.0×10−5 Darcy or more, a porosity of 30% to 70%, an average pore size of 20 nm to 40 nm, a shutdown temperature of 150° C. or lower, and a meltdown temperature of 180° C. or higher.
Resumen de: US2025219065A1
A main object of the present disclosure is to provide an electrode active material of which volume change due to charge and discharge is small. The present disclosure achieves the object by providing an electrode active material including a silicon clathrate II type crystal phase, wherein a void is included inside a primary particle; and a void amount P1 of a void with a pore diameter of 5 nm or less is 0.015 cc/g or more and 0.05 cc/g or less.
Resumen de: US2025219069A1
A positive electrode for a battery that cycles lithium ions includes a fluorinated lithium-rich and manganese-based oxide (LMR) material. The fluorinated LMR material has the formula: Li1+xMe1−xO2−yFy, wherein: Me is a transition metal selected from the group consisting of Co, Ni, Mn, Fe, Al, V, Mo, Nb, Zr, Zn, Mg, Cu, Ti, and W; Me includes, on an atomic basis, greater than or equal to 50% Mn; x is greater than 0 and less than or equal to 0.33; and y is greater than 0 and less than or equal to 0.1.
Resumen de: WO2025139028A1
A battery tray assembly (3), a battery pack (81) and an electric device (80). The battery tray assembly (3) comprises a battery tray (2) and a reinforcing member (1), wherein a cavity (20) is provided at at least one end of the battery tray (2) in a first direction, the cavity (20) is located inside the battery tray (2), and the reinforcing member (1) is arranged in the cavity (20). In the first direction, a first gap (41) is provided between the side of the cavity (20) away from the center of the battery tray (2) and the reinforcing member (1) located in the cavity (20).
Resumen de: WO2025139027A1
A filler (200), a battery pack (10), and an electrical device (20). The filler (200) is adapted to be arranged in a filling space (101) between a battery cell group (300) and a side wall of a tray (100); the filler (200) is provided with a first channel (211), an inlet (2113) of the first channel (211) being used for leading to a battery cell accommodating space (111) in the tray (100), and an outlet (2114) of the first channel (211) being used for leading to the outside of the battery cell accommodating space (111).
Resumen de: AU2023468779A1
Battery-monitoring wireless temperature sensors (WTSs) are positioned so that they can obtain temperature data related to batteries that are being stored in a storage area. Reference WTSs are positioned throughout the storage area to provide representative ambient temperature data. The battery-monitoring WTSs and the reference WTSs wirelessly transmit temperature measurements to a temperature processing system. The temperature processing system processes the battery-monitoring temperature measurements based on the reference temperature measurements and previous battery-monitoring temperature measurements. In some embodiments, the temperature processing system compares a battery-monitoring temperature measurement received from a particular battery-monitoring WTS to (i) at least one reference temperature measurement, and (ii) any previous battery-monitoring temperature measurements from that same WTS. If the battery-monitoring temperature measurement exceeds (i) or (ii) by a predefined threshold amount, then some type of preventive action is initiated.
Resumen de: US2025219177A1
A method for recovering lithium from waste lithium-ion batteries, the method including: a dissolution step of dissolving active material powder obtained by pre-processing waste lithium-ion batteries in a mineral acid; a neutralization step of adding at least one selected from the group consisting of sodium hydroxide and potassium hydroxide to a solution obtained in the dissolution step; a solvent extraction step of separating at least one metal excluding lithium from a solution obtained in the neutralization step by organic solvent extraction to obtain an alkali mixed salt aqueous solution; a separation step of separating each of a lithium salt and a salt of at least one selected from the group consisting of sodium and potassium from the alkali mixed salt aqueous solution; and a lithium recovery step of recovering lithium from a first lithium salt aqueous solution obtained in the separation step.
Resumen de: US2025219235A1
The present application discloses a pressure relief mechanism, a battery cell and a battery. The pressure relief mechanism includes: a connecting mechanism including an aperture and a first boss, the first boss being connected to an inner wall of the aperture and extending toward an axis of the aperture; a pressure relief sheet for being actuated to release an internal pressure of the battery box when the internal pressure reaches a threshold and being arranged on a side of the first boss; a first protective sheet used to protect the pressure relief sheet and arranged on the other side of the first boss away from the pressure relief sheet; a compression ring arranged on a side of the first protective sheet away from the first boss; and a pressing structure connected to the connecting mechanism and being capable of being pressed toward the axis of the aperture.
Resumen de: US2025219178A1
A versatile and efficient method is described for recovering a high-purity material (target) or multiple materials (targets) from a complex mixture in batch or continuous chromatography systems. If perfectly selective sorbents are available for the targets, constant-pattern batch capture methods in tandem or tandem carousel capture methods are preferred. If perfectly selective sorbents for the targets are unavailable, the batch capture, carousel capture, isocratic SMB, non-isocratic SMB, and isotachic displacement methods can be deployed in tandem or in parallel to produce high purity products with high yields and high productivity.
Resumen de: US2025214445A1
In a control device for an electric vehicle, a setting unit sets, as a maximum value of power capable of being charged into the battery, a short time SOP applied during charging in which a charging time is equal to or less than a predetermined time and a long time SOP applied during charging in which the charging time exceeds the predetermined time. A calculation unit calculates a regeneration SOP corresponding to a maximum value of regeneration power from the motor based on the short time SOP and the long time SOP. A control unit controls the regeneration power from the motor in a range equal to or less than the regeneration SOP. The calculation unit gradually changes the regeneration SOP from the short time SOP to the long time SOP in accordance with a duration time of the regeneration power generation.
Resumen de: US2025213871A1
A portable medical device is disclosed. The portable medical device may comprise a display, a defibrillator port, a battery unit, and a processor. The processor may be configured to determine a cycle count of the battery unit, wherein the cycle count represents a number of times the battery unit has been charged and determine whether the cycle count satisfies a cycle count threshold. The processor may also be configured to, in response to determining that the cycle count satisfies the cycle count threshold, cause one or more graphical elements to be displayed on the display.
Resumen de: US2025214182A1
The present disclosure relates to a welding device, comprising a base, a material-transporting mechanism, a first positioning mechanism, a second positioning mechanism and a welding mechanism. By providing the above welding device, the material-transporting mechanism transports the battery to abut against the first positioning mechanism, and then the second positioning mechanism located at the positioning position obtains the battery abutting against the first positioning mechanism; the battery is positioned in the first direction, the second direction, and the third direction by the first positioning mechanism and the second positioning mechanism; subsequently, the battery is transported to the welding position by the second positioning mechanism, and then is welded by the welding mechanism.
Resumen de: US2025214102A1
A coating die, a coating apparatus, and a coating method are provided, and pertain to the field of battery technologies. The coating die includes a die body and a cleaning assembly. The die body has a receiving cavity, a feed port, and a discharge port. The cleaning assembly is located in the receiving cavity. The cleaning assembly includes a cleaning part and a driving part, the driving part being configured to drive the cleaning part to extend into the discharge port for cleaning of the discharge port. When the discharge port of the coating die needs to be cleaned, the cleaning part can be driven by the driving part of the cleaning assembly to extend into the discharge port. Debris or dried slurry in the discharge port can be discharged by the cleaning part in the process of extending into the discharge port, thereby cleaning the discharge port.
Resumen de: US2025213340A1
A powered personal care (e.g., razor, toothbrush, etc.) system may comprise a battery-powered oral care device. The oral care device may comprise a handle portion that may comprise a rechargeable battery configured to be detachably connected to the handle portion. The handle portion may comprise a motor configured to be energized by the rechargeable battery. The oral care device may comprise a head portion that may comprise a plurality of brush bristles. The personal care system may comprise a hydraulically powered battery charging device. The charging device may comprise a housing, a hydraulic inlet port, a magnetic core, a turbine blade in mechanical communication with the magnetic core. The turbine blade may be motivated into rotation by a flow of hydraulic fluid across the at least one turbine blade. The charging device may comprise a battery port configured to insertably receive the rechargeable battery.
Resumen de: WO2025139800A1
Provided in the present application are an electrode assembly, an electrochemical apparatus and an electric device. The electrode assembly comprises a first electrode sheet and a second electrode sheet having opposite polarities, wherein a first active material layer and a second active material layer of the first electrode sheet are respectively arranged on a first surface and a second surface of a first current collector that are opposite each other; the first active material layer is provided with a first groove and a second groove penetrating through a bottom wall of the first groove to the first surface; a first surface of a first single-sided bare foil area of the first current collector is exposed in the second groove, and a second surface thereof is covered by the second active material layer, such that the volume of the second active material layer is larger; a first tab is accommodated in the second groove and is welded to the first single-sided bare foil area to form a welded joint; and a first insulating adhesive layer is accommodated in the first groove and covers the welded joint, and the projection of the first insulating adhesive layer in the direction of thickness of the first current collector is located in the first groove, such that the overall thickness of the electrode assembly is smaller, making the energy density of the electrochemical apparatus higher.
Resumen de: WO2025139784A1
The present application relates to the technical field of batteries, and discloses a battery cell cover plate and a battery. The battery cell cover plate comprises: a cover plate body through which a mounting hole is formed; a pole provided with a limiting portion directly or indirectly abutted and fixed to one side surface of the cover plate body, a body step portion connected to the limiting portion and at least partially passing through the mounting hole, and a middle-diameter step portion and a top-diameter step portion sequentially provided on the side of the body step portion distant from the limiting portion; and a riveting block riveted to the middle-diameter step portion and the top-diameter step portion, so that the riveting block is directly or indirectly abutted against the other side surface of the cover plate body, wherein along the radial direction of the pole, the diameter of the middle-diameter step portion is d2, the diameter of the top-diameter step portion is d3, and 0.05≤(d3-d2)/d3≤0.5. The battery cover plate provided in the present application avoids the situation where the tensile resistance performance deteriorates due to the excessively small load-bearing surface on the top of the pole, effectively ensures the structural strength of the cover plate, and improves the safe use performance of the battery.
Resumen de: WO2025139886A1
The present disclose relates to the technical field of sodium ion batteries, and in particular to a sodium-ion battery and an electrical device. The sodium-ion battery comprises a positive electrode sheet and an electrolyte; the positive electrode sheet comprises an active material layer, and the active material layer mainly consists of a positive electrode active material, a conductive agent, and a binder; the mass of the conductive agent accounts for A% of the total mass of the active material layer, and the mass of the binder accounts for B% of the total mass of the active material layer; the electrolyte comprises solvents and a sodium salt; the relative dielectric constant of the solvents is ε, n types of solvents are comprised, n≥2, and the ratio of the mass of each type of solvent to the total mass of the solvents is M; the molar concentration of the sodium salt in the electrolyte is N; A, B, ε, M, and N satisfy: 4.3≤A/B+C≤12.9, and formula (I). The sodium-ion battery provided in the present disclosure has high safety and good cycle stability.
Resumen de: WO2025139033A1
The present disclosure relates to the technical field of lithium ion batteries. Provided are a jelly-roll cell and an electrochemical device. The jelly-roll cell is formed by rolling a positive electrode sheet, a separator and a negative electrode sheet, which are sequentially stacked, wherein a polymer layer is provided on at least one surface of a carrier layer of the separator, and first coating regions and second coating regions are alternately spaced apart on the polymer layer in the direction of the length of the separator, each first coating region comprising several first protrusions, and each second coating region comprising several second protrusions; and in the direction of the thickness of the separator, the maximum height of each first protrusion from the carrier layer is H1, the maximum height of each second protrusion from the carrier layer is H2, and the relationship therebetween satisfies: H1:H2=(0.3-1):1. The jelly-roll cell can reserve an expansion space, thereby avoiding the problem of hole blockage caused by extrusion due to the inability to release the expansion stress of the battery cell, preventing the hindrance of lithium ion transmission, and significantly ameliorating the problems of black spots and lithium plating of the battery cell.
Resumen de: WO2025139044A1
A battery cell (100), a battery (1000), a battery module (2000), a battery pack (3000), and an electrical device (4000). The battery cell (100) comprises a housing (1); the housing (1) comprises a cover plate assembly (12) and a housing body (11) that together define an accommodating cavity (13); the cover plate assembly (12) comprises a cover plate (121) and an electrode post (122) connected in an insulated fashion on the cover plate (121); an electrode core (20) is arranged within the accommodating cavity (13); and a first electrode tab (201) and a second electrode tab (202) of opposite polarities are arranged at a same end of the electrode core (20); A first current collecting plate (3) is arranged within the accommodating cavity (13) and is located between the first electrode tab (201) and the cover plate assembly (12), and the electrode post (122) is electrically connected to the first electrode tab (201) by means of the first current collecting plate (3); a second current collecting plate (4) is arranged within the accommodating cavity (13) and is located between the second electrode tab (202) and the cover plate assembly (12), the cover plate (121) is electrically connected to the second electrode tab (202) by means of the second current collecting plate (4), and the second current collecting plate (4) is insulated from both the electrode post (122) and the first current collecting plate (3).
Resumen de: WO2025139025A1
Provided in the present application are a battery, a battery assembly and an electric device. The battery comprises a core, a cover plate assembly and an insulating film, wherein the core comprises a first end face and a second end face arranged opposite each other, and a plurality of side faces, the plurality of side faces being connected between the first end face and the second end face; the cover plate assembly is connected to and covers one side face; and the insulating film completely covers the first end face, the second end face and the other side faces, and the insulating film further covers a peripheral side wall at the end of the cover plate assembly that is close to the core. The battery, the battery assembly and the electric device provided in the present application have a simple structure, low manufacturing cost and a high rate of space utilization.
Resumen de: US2025219084A1
Batteries, component structures and manufacturing methods, in particular including a glassy embedded battery electrode assembly having a composite material structure composed of interpenetrating material components including a porous electroactive network including a solid electroactive material, and a continuous glassy medium including a Li ion conducting sulfide glass, can achieve enhanced power output, reduced charging time and/or improved cycle life.
Resumen de: US2025219243A1
A method for producing a hybrid polymer membrane involves directly and independently feeding the individual components of the membrane into a twin screw extrusion with no need for any sort of pre-processing, for example, pre-mixing said components. The hybrid polymeric membrane can be used, for example, as a hybrid polymer electrolyte (HPE) or cathode in electrochemical cells and secondary solid-state batteries. The method displays several advantages including being solvent-free, scalable and time- and resource-economical, and being of great relevance for the membrane manufacturing industry.
Resumen de: US2025219132A1
The present application relates to the technical field of battery materials, in particular to a solid state electrolyte film, preparation method and use thereof and solid state battery. The solid electrolyte film includes a lithium metal stable layer, a lithium dendrite inhibition layer and a high-conductivity layer that are stacked in sequence; in particular, the lithium metal stable layer contains a first sulfide solid electrolyte, and a surface of the first sulfide solid electrolyte is coated with a lithium sulfide protective layer; the lithium dendrite inhibition layer contains a second sulfide solid electrolyte, and the lithium dendrite inhibition layer has a porosity of less than 8%; the high-conductivity layer contains a third sulfide solid electrolyte, the third sulfide solid electrolyte has a Hinckley crystallinity index of greater than 1.1, and a particle size of greater than 20 μm.
Resumen de: US2025216470A1
A battery-specific characteristic generation unit estimates, for each battery pack, an SOC (State of Charge)-OCV (Open Circuit Voltage) curve of a cell block included in the battery pack, a resistance of the cell block, and a capacity of the cell block, and calculates a resistance capacity product derived from multiplying the resistance of the cell block by the capacity of the cell block. A cell type identification unit identifies a type of the cell included in an undefined battery pack based on a degree of agreement between the SOC-OCV curve of the cell block of the undefined battery pack and the SOC-OCV curve of an already-defined cell block and based on a degree of agreement between the resistance capacity product of the cell block of the undefined battery pack and the resistance capacity product of the already-defined cell block.
Resumen de: US2025216462A1
The present invention relates a battery system including a battery that includes a plurality of battery banks each of which includes a plurality of battery cells, and a control unit configured to determine a ratio of second state-of-charge change amounts of each battery bank to a first state-of-charge change amount of a reference battery bank, and diagnose defects of each battery bank by comparing the ratio with a diagnosis reference value, when a predetermined diagnosis condition is satisfied in a charging mode of charging the battery with an electricity of an external device, wherein the diagnosis reference value is determined based on a number of battery cells connected in parallel in a battery bank.
Resumen de: US2025216474A1
This application discloses a state of health (SOH) detection method and apparatus, and an energy storage system. A main controller in the method can adjust an output power of a power generation module based on an allowable charge or discharge power of a battery pack, so as to cause the output power of the power generation module to charge or discharge the battery pack while satisfying a required system power. This enables the battery pack to complete a full charging or discharging process, so as to obtain a currently available capacity of the battery pack accurately and implement precise calculation of the SOH.
Resumen de: US2025216467A1
An apparatus for diagnosing a battery located in a battery system including one or more batteries, the apparatus may include: at least one processor; and a memory configured to store instructions executed by the at least one processor to collect state of charge information of the battery when the battery system is in a standby mode; calculate an amount of power change of the battery during a maintaining period of the standby mode based on the collected state of charge information and pre-stored initial state of charge information; and compare the calculated amount of power change with an expected amount of discharge power of the battery and to determine whether a leakage current occurs in the battery system based on the comparison.
Resumen de: WO2025139922A1
A high-capacity battery and a manufacturing method therefor. The high-capacity battery comprises a case (100), N battery units (200), and an electrolyte, where N≥2. The N battery units (200) are disposed in the case (100), and the top of the case (100) is provided with a total positive electrode terminal (8) and a total negative electrode terminal (9). The electrolyte is contained in the case (100), and the N battery units (200) are in an electrolyte system. The plurality of battery units (200) are mounted in the case (100) having the electrolyte, so that the battery units (200) are in a unified electrolyte system, ensuring the uniformity of the battery units (200), and further improving the cycle life of the large-capacity battery.
Resumen de: WO2025139771A1
The present disclosure belongs to the technical field of all-solid-state batteries. Provided are a sulfide solid electrolyte membrane and a preparation method therefore, and an all-solid-state alkali metal ion battery. The sulfide solid electrolyte membrane is composed of sulfide particles containing a polymer coating, and the chemical composition of the sulfide particles containing a polymer coating is EmMnSoCαOβSγHδNζEa.
Resumen de: WO2025139829A1
A high-capacity, low-residual sodium sodium-ion battery layered positive electrode material, the chemical formula of the sodium-ion battery layered positive electrode material being NaaM1bNiwFexMnyCuzM21-w-x-y-zO2. M1 comprises one or more of Ca, Li, or K, and M2 comprises one or more of Mg, Zn, Al, Zr, Ti, Nb, Mo, Y, Ta, W, Sr, Ba, B, or P, where 0.85≤a<0.98, 0
Resumen de: WO2025139778A1
The present application relates to the technical field of batteries, and provides a battery pack thermal management device, a battery pack, and a vehicle. The battery pack thermal management device comprises a housing; the housing comprises at least two thermal management plates and a frame; among the at least two thermal management plates, one thermal management plate is located at the top end of the frame and connected to the frame, and the other thermal management plate is located at the bottom end of the frame and connected to the frame. An accommodation cavity is defined by the inner wall of the frame and the thermal management plates located at the two ends of the frame, the accommodation cavity is used for accommodating battery cells, and the thermal management plates located at the two ends of the frame are attached to two ends of the battery cells, respectively. A flow channel is formed in each thermal management plate, and the thermal management plate cools or heats the battery cells by means of a medium in the flow channel. According to the technical solution, the two thermal management plates are respectively attached to the top end and the bottom end of the battery cells, a flow channel is formed in each thermal management plate, and the battery cells are cooled or heated by means of the medium in the flow channel; the flow channels do not occupy the battery cell area, thereby increasing the battery capacity of the battery pack, and there is no need to provide jo
Resumen de: WO2025139257A1
An electrode film, an electrode sheet, and a battery. The electrode film comprises a fiber, the ratio of the length to the diameter of the fiber being L1, wherein L1 is 10-1,000, and preferably, L1 is 20-500. By limiting the composition of the electrode film and the length-diameter ratio of the fiber, the structural strength and bonding property of the electrode film can be remarkably improved, thereby ensuring that all components in the electrode film are kept in a good bonding state; and by applying the electrode film to a battery, the cycle performance and rate performance of the battery can be remarkably improved.
Resumen de: WO2025139248A1
A battery assembly and a temperature control method therefor, an electric system and a controller. The battery assembly comprises a battery and a temperature regulating assembly, wherein the temperature regulating assembly is arranged on one side of the battery to exchange heat with the battery, the temperature regulating assembly is provided with a liquid flow plate which is provided with a liquid flow channel, and the liquid flow channel is provided with liquid inlets and a liquid outlet. The temperature control method comprises: acquiring a maximum value tmax and a minimum value tmin of the temperature of a battery; acquiring a difference △t of the maximum value tmax and the minimum value tmin; and when the difference △t is greater than a first threshold △t0, controlling a temperature regulating assembly to be in an on state, and controlling the liquid inlet temperature tb of a liquid flow plate to meet: tmin
Resumen de: WO2025139214A1
A cylindrical battery, comprising a battery casing (11), a battery post (12), and a corner sealing structure (13). The battery casing (11) has an accommodating chamber (111), and is provided with a mounting hole (113) leading to the accommodating chamber (111); the battery post (12) passes through the mounting hole (113), one end of the battery post (12) being located in the accommodating chamber (111); the corner sealing structure (13) passes through the mounting hole (113) and is located between the battery casing (11) and the battery post (12), one end of the corner sealing structure (13) being located in the accommodating chamber (111). The battery casing (11) is provided with an arc chamfer (112) at a corner of the junction between the mounting hole (113) and the accommodating chamber (111), and the corner sealing structure (13) can be compressively deformed so as to seal a gap between the battery post (11) and the battery casing (12) at the arc chamfer (112).
Resumen de: WO2025139215A1
In order to solve the problem of continuous consumption of electrolytes caused by unstable film formation of negative electrodes of existing batteries, the present invention provides a lithium ion battery which comprises a positive electrode, a negative electrode and a non-aqueous electrolyte. The positive electrode comprises a positive electrode material layer, and the positive electrode material layer comprises a positive electrode active material and a lithium-rich oxide LixMm yOz, wherein M is at least one of Si, Cu, Co, Ni, Mn, Mo, Ru and Fe, 2≤x≤6, 0
Resumen de: US2025219085A1
The present application provides a negative electrode plate, a method of preparing the same, a secondary battery, and an electrical device. The negative electrode plate includes a negative electrode current collector and a negative electrode active material layer provided on the negative electrode current collector, wherein the negative electrode active material layer includes a negative electrode active material and an additive, the additive includes a shell wall and a cavity located on an inner side of the shell wall, a thickness of the shell wall is denoted as d, a volume of the cavity is denoted as Vh, a volume of the additive is denoted as Vw, and the additive satisfies 20 nm≤d≤300 nm and 40%≤Vh/Vw≤90%. The present application can effectively reduce the expansion force of secondary batteries and improve the safety performances of secondary batteries.
Resumen de: US2025216466A1
A failure detection method for battery racks is disclosed and includes: continuously computing a voltage difference data in a computation frequency; computing a standard deviation by using the voltage difference data retrieved from each battery rack up to present; obtaining a first voltage trend and a second voltage trend according to the voltage difference data in a first period and the voltage difference data in a second period when the standard deviation is greater than a preliminary-filtered threshold; computing an intersection of the first voltage trend and the second voltage trend to obtain a voltage trend status; computing a voltage slope according to the voltage difference data of the second period; and generating an alarm message when the voltage trend status is abnormal and the voltage slope is greater than a slope threshold, where the alarm message indicates the position of a battery cell occurring overvoltage status.
Resumen de: US2025216478A1
A cooling plate for battery of the present disclosure includes a flat surface portion, and a pair of side surface portions facing each other. In the cooling plate for battery, a cutout or through-hole is formed in at least one of the side surface portions. A battery assembly of the present disclosure includes the cooling plate for battery, and a battery disposed on the flat surface portion of the cooling plate for battery. The battery in the battery assembly includes an electrode stack, a current collector terminal, and a laminating film. The laminating film includes a fusion resin layer, a metal layer, and a protection resin layer, and an extending portion. The extending portion is bent toward the electrode stack, and the cooling plate for battery is disposed such that at least one of the side surface portions of the cooling plate for battery faces the bent extending portion.
Resumen de: US2025216194A1
A method of manufacturing a cell test apparatus, the method comprising, determining by analyzing heat generated from a battery module including a plurality of cells, a thickness of a thermal-insulation layer of the cell test apparatus simulating the battery module and including one or more target cells therein, determining by analyzing a structure of the battery module, a thickness of an outer wall of the cell test apparatus; and determining a length of a spacer of the cell test apparatus.
Resumen de: US2025216191A1
An apparatus and method for measuring an electrode plate thickness, which can measure a thickness of an active-material-coating layer formed on an electrode plate before drying the electrode plate. The apparatus for measuring an electrode plate thickness includes a sensor module configured to detect a thickness of an electrode plate upstream of a drying furnace, and a processor connected to the sensor module, and configured to detect the thickness of the electrode plate in a width direction through the sensor module, calculate an active-material-coating thickness based on the thickness of the electrode plate, and compensate the active-material-coating thickness based on a measurement error due to thermal deformation of the sensor module.
Resumen de: WO2025139769A1
Provided in the present disclosure are a recyclable sulfide composite solid electrolyte and a preparation method therefor. The recyclable sulfide composite solid electrolyte comprises: a polymer having a dynamic reversible covalent bond, the polymer integrating the dynamic reversible covalent bond on a main chain or a cross-linked side chain; and a sulfide solid electrolyte.
Resumen de: WO2025139765A1
A negative electrode material and a preparation method therefor, a negative electrode sheet, and an all-solid-state battery. The negative electrode material has a core-shell structure, and comprises a lithium-free active material and a coating layer thereof, wherein the coating layer is selected from metal phosphorus sulfides having a general formula of MxPySz, M is selected from non-lithium metal elements, and x, y and z are all selected from natural numbers. The negative electrode material is subjected to in-situ conversion during battery cycle to obtain a modified active substance, improving an interface between a non-lithium negative electrode material and an electrolyte, and effectively improving the ionic conductivity and the electronic conductivity of the negative electrode sheet. Moreover, the all-solid-state battery assembled by the negative electrode sheet has high cycle performance and energy density.
Resumen de: WO2025139767A1
The present invention relates to a composite sulfide electrolyte, and a preparation method therefor and a use thereof. The composite sulfide electrolyte has a three-dimensional crosslinked structure formed by connecting a sulfide electrolyte and a dynamic bond-containing crosslinked polymer by means of chemical bonds. The polymer contains a sulfur element and exhibits relatively higher stability when interacting with the sulfide electrolyte, the chemical crosslinking between the sulfide electrolyte and the dynamic bond-containing crosslinked polymer is formed by means of multiple chemical bonds, such as a disulfide bond and an amido bond, and a strong binding force and self-healing function are provided, in order to simultaneously solve the problems of interfacial delamination and cracking caused by mechanical stress inside the sulfide electrolyte. When applied in an all-solid-state battery, the composite sulfide electrolyte can improve the limiting current density and cycle stability of the all-solid-state battery.
Resumen de: WO2025139211A1
The present application provides a battery pack and an electric device. The battery pack has a first direction and a second direction which intersect with each other, and comprises at least two battery columns and at least one cooling plate; the at least two battery columns are spaced apart from each other in the first direction; in the first direction, there is a first gap between two adjacent battery columns, and the cooling plate is provided in the first gap; the battery columns each comprise a plurality of battery cells; the plurality of battery cells are distributed in the second direction; a plurality of cooling portions are provided on the cooling plate; the plurality of cooling portions are distributed at intervals in the second direction; the cooling portions are recessed in the direction facing away from the battery cells in contact with the cooling portions; the cooling portions each have an inwardly-concave surface; and at least part of each inwardly-concave surface is connected to the corresponding battery cell. The present application can achieve both the cooling effect and the service life of a battery.
Resumen de: WO2025139203A1
The present application relates to the technical field of batteries, and in particular to a negative electrode material and a preparation method therefor, and a secondary battery. The negative electrode material comprises a silicon-based active material and a matrix material; the negative electrode material contains a hydrogen element, a halogen element, a nitrogen element and a sulfur element, wherein the mass content of the hydrogen element is mH, and the mass content of the halogen element is mX, the mass content of the sulfur element is mS, the mass content of the nitrogen element is mN, and the following relations are satisfied: 0.02≤mX/mH≤5.00, 0.02≤mN/mH≤20.00, and 0.05≤mS/mH≤5.00. The mass content ratios of the hydrogen element to the nitrogen element, the sulfur element and the halogen element are each adjusted to an appropriate range, so that the volume expansion of the negative electrode material can be effectively inhibited, and the capacity, the first coulombic efficiency, the powder electrical conductivity, the cycle performance and the rate performance of the negative electrode material are all improved.
Resumen de: WO2025138952A1
A cover plate assembly (100) and a battery. The cover plate assembly (100) comprises a mounting member (101) and a current collecting plate (105), wherein the mounting member (101) comprises a main body portion (102) and a blocking portion (103), a mounting side (104) being formed on the main body portion (102), and the blocking portion (103) being connected to the mounting side (104); and the current collecting plate (105) comprises a first connection portion (106), a first bend portion (107) and a second connection portion (108), which are connected in sequence, the first connection portion (106) being mounted on the mounting side (104), and the blocking portion (103) abutting against the side of the first bend portion (107) away from the main body portion (102), such that the first bend portion (107) is located between the main body portion (102) and the blocking portion (103).
Resumen de: US2025215303A1
A two-part thermally conductive curable composition exhibits high dispensing rates and cures to a thermally conductive interface material with high thermal reliability, including high fracture toughness and elongation properties. The curable composition employs a combination of multi-functional and mono-functional liquid epoxy resins with low viscosity.
Resumen de: US2025215234A1
The present application is directed to methods for solvent-free preparation of polymers and their subsequent processing into activated carbon materials. These methods unexpectedly demonstrate ability to tune pore structure in the polymer gel and carbon produced there from, while also providing distinct advantages over the current art.
Resumen de: US2025215120A1
A polyethylene powderhaving a viscosity-average molecular weight of 100,000 or larger and 4,000,000 or smaller, andhaving a crystal thickness parameter of 5° C. or higher and 9° C. or lower obtained from measurement using a differential scanning calorimeter (DSC).
Resumen de: US2025215188A1
A resin composition includes a thermoplastic resin; a carbon fiber; and a silane coupling agent, in which a content of the thermoplastic resin is within a range of 59 parts by mass or more and 88 parts by mass or less, a content of the carbon fiber is within a range of 1 part by mass or more and 18 parts by mass or less, and a content of the silane coupling agent is within a range of 0.3 parts by mass or more and 7 parts by mass or less, with respect to a total of 100 parts by mass of the resin composition, and the carbon fiber is an isotropic pitch-based carbon fiber.
Resumen de: US2025215157A1
The subject application relates to composite material, composite material layer, and cell vent protection composite with thermal barrier properties. The subject application relates to a composite material that may include a silicone-based matrix component, a reinforcing filler component distributed within the silicone-based matrix component, and a ceramization filler composition distributed within the silicone-based matrix component. The ceramization filler composition may include a ceramization filler component, a structure promoter component, a flux component, and a flame retardant component.
Resumen de: US2025214846A1
The present invention relates to a method for producing carbon comprising the steps of: providing lignin having a total metal content of less than 200 ppm to heat treatment at one or more temperatures in the range of from 300° C. and 1500° C. to obtain carbon. The present invention also relates to carbon having a total metal content below 800 ppm; a negative electrode for a secondary battery comprising said carbon as active material; and use of said carbon as active material in a negative electrode of a secondary battery.
Resumen de: US2025215999A1
An explosion-proof valve plugging device. The explosion-proof valve plugging device comprises a sealing cover, a magnetic member and a first driving member. The sealing cover is configured to cover an end of an explosion-proof valve that is provided with a valve cover. The magnetic member is arranged in the sealing cover, and the magnetic member is configured to attract the valve cover. The first driving member is in transmission connection with the magnetic member, and is configured to drive the magnetic member to move relative to the sealing cover, such that the magnetic member comes into contact with the valve cover and drives the valve cover to be opened. After the explosion-proof valve plugging device plugs the explosion-proof valve, the first driving member first drives the magnetic member to come into contact with and attract the valve cover.
Resumen de: US2025216468A1
Discussed is a battery pack diagnosis method including a battery pack manufacturing process, a battery cell charging and discharging process, a battery pack thermal image photographing process, a thermal image reading process, a battery pack magnetic field image photographing process, a magnetic field image reading process, and a wire bonding state defect determining process of finally determining a bonding state of a battery cell and a wire by combining thermal image reading result information obtained in the thermal image reading process and magnetic field image reading result information obtained in the magnetic field image reading process in order to exactly diagnose the bonding state of the battery cell and the wire connecting the battery cell in the battery pack.
Resumen de: US2025216473A1
The present disclosure refers to a method for operating a battery pack, is provided. According to the method provided, a current intermediate characteristic value characterizing an aging state degree of the battery pack is determined based on a detected and/or obtained condition measurement signal. Afterwards, a comparison of the current intermediate characteristic value and a first predetermined value of the intermediate characteristic value is performed, wherein the first predetermined value includes a value of the intermediate characteristic value at which a predefined value of the aging state degree is undercut. Further, an operational limit for the battery pack is adjusted based on the comparison. Aspects provided further relate to a battery system including a battery pack, the battery system being configured for performing the disclosed method.
Resumen de: US2025216465A1
An apparatus for estimating a rechargeable battery performance includes a communication unit that receives a cumulative intrusion value that is a summed value of volumes of entire pores per unit area of a positive electrode from an apparatus for measuring volumes of pores formed in the positive electrode; and a processor that estimates an output performance of a rechargeable battery by comparing the cumulative intrusion value and a volume reference value, wherein the volume reference value is a cumulative intrusion value corresponding to an expected output value required for the rechargeable battery when the rechargeable battery is continuously discharged.
Resumen de: WO2025138606A1
A cover plate assembly (10), a battery cell (103), a battery (100) and an electric device. The cover plate assembly (10) comprises a cover plate body (11) and an elastic sealing member (12), wherein the cover plate body (11) is provided with an electrolyte injection hole (11a), a flow guide hole (11b) and a mounting space (11c); both the electrolyte injection hole (11a) and the flow guide hole (11b) are in communication with the mounting space (11c), and an inlet of the electrolyte injection hole (11a) and an outlet of the flow guide hole (11b) are located on two opposite sides of the cover plate body (11) in the direction of the thickness of the cover plate body (11); at least part of the elastic sealing member (12) is arranged in the mounting space (11c) and can elastically deform in an extension direction of the electrolyte injection hole (11a); in a sealed state, an inner wall of the position where the mounting space (11c) is in communication with the electrolyte injection hole (11a) hermetically fits with the elastic sealing member (12), so as to block an outlet of the electrolyte injection hole (11a); and in a communication state, the elastic sealing member (12) is compressed in an extension direction of the electrolyte injection hole (11a) under force, such that the inner wall of the position where the mounting space (11c) is in communication with the electrolyte injection hole (11a) is separated from the elastic sealing member (12). The cover plate assembly (10) is pr
Resumen de: WO2025138203A1
Disclosed in the present application are a cover plate, a battery, and a battery pack. The cover plate comprises a body and an anti-explosion structure; the body comprises a first sub-portion and a second sub-portion, wherein the second sub-portion comprises a recessed platform and a protruding platform that are connected together, the second sub-portion has a first side face and a second side face that are opposingly arranged, and the height of the protruding platform is higher than the recessed platform and the first sub-portion; an anti-explosion recess is arranged on the first side face, a first sub-recess of the anti-explosion recess is at least partially located on the recessed platform, and a second sub-recess of the anti-explosion recess is located on the protruding platform.
Resumen de: WO2025138191A1
A lithium iron phosphate material, and a preparation method therefor and the use thereof. The lithium iron phosphate material comprises a lithium iron phosphate particle A, a lithium iron phosphate particle B and a lithium iron phosphate particle C, wherein the particle A is formed by agglomerating primary particles A1, and the average particle size of the primary particles A1 is 50-300 nm; the particle B is formed by agglomerating primary particles B1, and the average particle size of the primary particles B1 is 600-1000 nm; the particle C is formed by means of agglomerating primary particles C1, and the average particle size of the primary particles C1 is 1200-1500 nm; and the mass ratio of the particle A to the particle B to the particle C is (4-7):(1-2):(2-4). The lithium iron phosphate material has the advantages of high compaction density and good electrochemical performance, and the preparation method therefor is simple.
Resumen de: WO2025138922A1
Provided are an energy storage cabinet (100), an energy storage system, a battery pack (200), and a battery support. The energy storage cabinet (100) comprises a cabinet body (110), a battery pack (200), and two guide rails (140) arranged opposite one another in the length direction (X) of the cabinet body (110). The cabinet body (110) is used for accommodating the guide rails (140) and the battery pack (200), the cabinet body (110) is provided with a cabinet door, and the two guide rails (140) extend in the width direction (Y) of the cabinet body (110). Each guide rail (140) among the two guide rails (140) is provided with a recess (141) extending in the width direction (Y), and the opening directions of the recesses (141) are opposite one another and face the interior of the cabinet body (110). The opening widths of the recesses (141) of the guide rails (140) at an end close to the cabinet door in the height direction (Z) of the cabinet body (110) are greater than the opening widths of the recesses (141) at the other end of the guide rails (140), and the surfaces of two side walls of the battery pack (200) are provided with protruding limiting blocks (220). The limiting blocks (220) are engaged in the recesses (141), and parts in the recesses (141) at narrowed opening widths are used for pressing against the limiting blocks (220) in the width direction (Y). The guide rails (140) can provide constraint in the width direction (Y) for the battery pack (200), limit the displace
Resumen de: WO2025138940A1
A battery tray assembly (100), a battery pack (200), and an electrical device (90). The battery tray assembly (100) comprises a battery tray (10a), a bottom protective plate (30), and a connecting member (40). The battery tray (10a) comprises a bottom plate (10), the connecting member (40) is fixed to the surface of the bottom plate (10) facing the bottom protective plate (30), and the bottom protective plate (30) is connected to the connecting member (40).
Resumen de: WO2025139004A1
An electrical device, comprising a battery assembly, wherein the battery assembly comprises a battery, the battery comprising a battery cell; the battery cell comprises a cover plate assembly, wherein the cover plate assembly comprises a cover plate, the cover plate comprising a cover plate body, a terminal post, and a first current collecting plate. The terminal post is arranged on the cover plate body, and is insulated from and connected to the cover plate body; and the first current collecting plate is connected to the terminal post, and comprises a main body portion, wherein the main body portion is configured to be connected to a tab, and in the thickness direction of the first current collecting plate, the main body portion is exposed from the cover plate body, and the shortest distance between the main body portion and the center of the terminal post is d0, where d0 satisfies: 2 mm≤d0≤8 mm.
Resumen de: WO2025139002A1
The present disclosure relates to the technical field of batteries. Disclosed are an electrolytic solution, a sodium-ion battery and an electric device. The electrolytic solution comprises a sodium salt, an organic solvent and a first additive. The first additive is a compound represented by formula (I), wherein R1, R2 and R3 are each independently selected from fluorine-containing substituents.
Resumen de: US2025214479A1
A replaceable battery according to the present disclosure is a replaceable battery mounted on a vehicle so as to be removable by sliding the replaceable battery in a longitudinal direction, the replaceable battery including: a rectangular parallelepiped cell stack having a plurality of battery cells stacked thereon; and a case for accommodating the cell stack. The case includes a rectangular tube shaped main body part, a first lid part for closing one opening end of the main body part, and a second lid part for closing an other opening end of the main body part. The first lid part is provided with a pull-handle, and the second lid part is provided with a connector protruding outward so as to be connected to a vehicle, and a relief valve through which gas generated from the cell stack is discharged.
Resumen de: US2025214859A1
A solid electrolyte precursor, a solid electrolyte, and a method of preparing the solid electrolyte. The solid electrolyte precursor includes a compound represented by Formula 1 and has an amorphous phase and the amorphous phase is contained in an amount of at least 50 volume percent based on the total volume of the solid electrolyte precursor. When the solid electrolyte precursor is analyzed by X-ray diffraction using Cu Kα radiation at a diffraction angle of 10° 2θ to 90° 2θ, a proportion of an area Pb of peaks having a full width at half maximum of 0.01° to 0.5° to a total area Pa of all peaks is 10% or less:(LixAa)(LayB′b)(ZrzC′c)O12+δ.
Resumen de: US2025214844A1
The present invention relates to a process for obtaining graphite, and optionally metals of value, which are preferably selected from at least one of the metals of the first and/or the third main group and/or at least one of the metals from the 7th to 11th secondary group, from lithium-ion batteries. The invention also relates to a corresponding system (71).
Resumen de: US2025214841A1
Disclosed is a preparation method for ammonium manganese iron phosphate. The preparation method comprises: respectively mixing a mixed salt solution of metals and an ammonium dihydrogen phosphate solution with an organic solution to obtain a mixed liquor of metal salts and a mixed liquor of phosphate; concurrently adding the mixed liquor of metal salts, the mixed liquor of phosphate and a first ammonia water into a base solution for reaction; and carrying out solid-liquid separation to obtain ammonium manganese iron phosphate. A mixed metal salt solution of a ferrous source and a manganese source and a phosphorus source are subjected to a coprecipitation reaction in an organic phase, to synthesize large-particle ammonium manganese iron phosphate with high compaction density. After the ammonium manganese iron phosphate is mixed with a lithium source and a carbon source, sintering can be carried out to prepare a lithium manganese iron phosphate cathode material.
Resumen de: US2025219090A1
An electrochemical device including a positive electrode, a negative electrode, and an electrolytic solution. The negative electrode includes a negative current collector and a negative active material layer formed on the negative current collector. The negative active material layer contains a negative active material. A conductive material is disposed between the negative active material layer and the negative current collector. An average particle diameter of the conductive material is smaller than that of the negative active material. The negative active material layer possesses a specific weight. The electrochemical device improves high-temperature cycle expansion performance and overcharge protection
Resumen de: US2025219061A1
A negative electrode material for a secondary battery includes a silicon-containing particle, and a coating layer that covers at least a portion of the surface of the silicon containing particle. The silicon-containing particle includes an ion-conducting phase, and silicon phases dispersed in the ion-conducting phase. The coating layer includes a lithium sulfonate compound and a hydrophobic polymer compound.
Resumen de: WO2025139132A1
A positive electrode plate, a method for evaluating the electrochemical performance of a positive electrode plate, a solid-state battery, and an electric device. A positive electrode active material layer of the positive electrode plate comprises a positive electrode active material and a positive electrode electrolyte, and there are pores in the positive electrode active material layer. In the vertical section of the positive electrode active material layer, the total length of the contact interface between the positive electrode active material and the positive electrode electrolyte is defined as the total length L1 of a first contact interface, the total length of the contact interface between the positive electrode active material and the positive electrode active material is defined as the total length L2 of a second contact interface, and the total length of the contact interface between the positive electrode active material and the pores is defined as the total length L3 of a third contact interface. The length ratio of L1, L2 and L3 satisfies: L1:L2:L3 = (80-99):(1-20):(0-5), on the basis of the sum of L1, L2 and L3 being 100. The positive electrode plate has excellent comprehensive electrochemical performance, and the evaluation method involves a simple process and has a wide application range, and can be used to rapidly evaluate the electrochemical performance of a positive electrode plate.
Resumen de: WO2025139135A1
A positive electrode material and a preparation method therefor, and a lithium-ion battery. The positive electrode material has a general chemical formula of LiNiaCobMncMdO2, wherein 0.7
Resumen de: WO2025139120A1
A positive electrode sheet for a sodium ion battery, a sodium ion battery and a device. The positive electrode sheet comprises a positive electrode current collector, and a sodium supplementing layer and a positive electrode coating which are sequentially stacked on at least one side of the positive electrode current collector, wherein the sodium supplementing layer comprises a sodium supplementing agent (a sodium-rich transition metal oxide), and the positive electrode coating contains a positive electrode active material and a sacrificial positive electrode sodium supplement agent capable of decomposing to produce gas.
Resumen de: WO2025138342A1
The present invention provides a vapor chamber structure with fins and a manufacturing process therefor. The vapor chamber structure with fins comprises a supporting plate housing, supporting columns, a liquid injection port, liquid suction cores, and a fin cover plate. The supporting columns are arranged in the supporting plate housing in an array manner; the liquid injection port is formed in the outer side of the supporting plate housing and is communicated with the interior of the supporting plate housing; the liquid suction cores surround the supporting columns and are arranged in the supporting plate housing so as to form vapor cavities used for heat exchange, and a welding layer formed for connecting the supporting plate housing and the fin cover plate is provided between adjacent vapor cavities and located on the walls of the liquid suction cores; and the top end of the fin cover plate comprises a plurality of fins arranged in an array manner, and the fin cover plate covers and is fixed to the top end of the supporting plate housing and performs convection heat exchange with the outside by means of the fins. The present invention can effectively solve the problem of too low convection heat exchange efficiency of the vapor chamber, improving the convection heat dissipation efficiency of the vapor chamber.
Resumen de: WO2025138171A1
A secondary battery and an electronic device. The secondary battery comprises a housing and an electrode assembly in the housing. The electrode assembly is bent in a first direction, the electrode assembly comprises a plurality of layers of electrode sheets and a plurality of layers of separators, and each layer of separator is disposed between two adjacent layers of electrode sheets. The electrode assembly has a first part and a second part which are sequentially arranged in the first direction, the separators comprise first separators at the first part and second separators at the second part, each first separator comprises a first base material layer and a first bonding layer, and each second separator comprises a second base material layer and a second bonding layer. The peel strength between the first bonding layer and an adjacent electrode sheet is S1, the peel strength between the second bonding layer and an adjacent electrode sheet is S2, it is satisfied that 6 N/m≤S1
Resumen de: WO2025138199A1
The present application discloses an explosion-proof structure, and a battery. The explosion-proof structure comprises a cover plate. An explosion-proof groove is formed on the cover plate. The explosion-proof groove comprises a first sub-groove and a second sub-groove. The projections of the first sub-groove and the second sub-groove on one side face of the cover plate define a closed circular ring. The thickness of the cover plate at the position of the first sub-groove is smaller than the thickness of the cover plate at the position of the second sub-groove. The present application improves the reliability of the cover plate, and ensures the explosion-proof effect.
Resumen de: US2025219103A1
According to an embodiment, an electrode for a secondary battery is provided, the electrode for a secondary battery including: an electrode current collector, and an electrode mixture layer and an insulating layer on at least one surface of the electrode current collector, wherein the insulating layer includes a copolymer, and the copolymer includes a repeating unit having an imide group and a rubber-based repeating unit.According to an embodiment of the present disclosure, it is possible to prevent ignition from occurring in the lithium secondary battery to improve safety.
Resumen de: US2025219140A1
Solid state batteries having a solid polymer electrolyte (SPE) that replaces a liquid electrolyte between the negative and positive electrode. The SPE is the reaction product of a one-pot polymerization involving a polymer backbone, a Li salt, a plasticizer, and electrolyte additive(s). The electrolyte additive may resolve the anode/electrolyte interfacial corrosive reaction issues to prevent shorting. The negative electrode may be plated with the SPE in the form of an interphase film, which also acts to separate the negative electrode from the positive electrode.
Resumen de: US2025219123A1
The present disclosure relates to a system for transferring and stacking electrodes in a battery stacking system. The system includes singulation device having a buffering device that feeds singulated electrodes to in-feed conveyors that transport the singulated electrodes to a transporting device having vacuum-assisted gripping shoes. The transporting device transfers the electrodes from the in-feed conveyors to the picking device equipped with gripping shoes to pick and place the battery materials into a stack on a stacking platform.
Resumen de: US2025219126A1
A method for manufacturing a power storage device includes accumulating correlation graph data between a warpage displacement amount of a sealing member with respect to a support point in a front-back direction of the accuracy requiring surface and a corrective deformation amount of the accuracy requiring surface corrected by deformation in an opposite direction to the front-back direction until a position at which the accuracy requiring surface can restore by its own elastic force to a normal position, measuring a warpage displacement amount, and determining whether or not the warpage displacement amount satisfies a reference value. Correcting the sealing member includes applying a load to the accuracy requiring surface determined to fail to satisfy the reference value until a position corresponding to a corrective deformation amount determined when the measured warpage displacement amount coincides with the warpage displacement amount in the correlation graph data, and then removing the load.
Resumen de: US2025219129A1
Described herein are processes for producing solid electrolyte materials. The processes include milling a slurry containing one or more solid electrolyte precursors, a solvent, and an additive, wherein the additive includes a compound comprising one or more sulfur atoms. Further provided herein are suspensions containing one or more solid electrolyte precursors, a solvent, and an additive, wherein the additive includes a compound comprising one or more sulfur atoms.
Resumen de: US2025219056A1
Provided are a positive electrode active material for a rechargeable lithium battery, a method of preparing the same, and a rechargeable lithium battery including the same. The positive electrode active material for a rechargeable lithium battery includes a lithium nickel-based composite oxide, wherein the positive electrode active material is in a form of a secondary particle in which a plurality of primary particles are aggregated together and at least a portion of the primary particles are radially arranged, the secondary particle includes an inner portion and an outer portion, the inner portion of the secondary particle is a region from a center of the secondary particle to 50±5 length % of the total distance from the center to the surface of the secondary particle, and is a region in which primary particles and pores are irregularly arranged.
Resumen de: US2025219091A1
All-solid-state battery (100) includes positive electrode current collector (7), positive electrode layer (20) including positive electrode active materials (3), solid electrolyte (1), a solid electrolyte (2), and conductive fiber (9), solid electrolyte layer (40) including solid electrolyte (6), negative electrode layer (30) including negative electrode active material (4) and solid electrolyte (5), and negative electrode current collector (8), all of which are stacked in this order. Positive electrode layer (20) includes a solvent component of 50 ppm or less. Positive electrode layer (20) includes plate-shaped compressed body (11) between positive electrode active materials (3), the plate-shaped compressed body including at least a part of solid electrolyte (1) and at least a part of conductive fiber (9). Compressed body (11) has a first maximum length in a first direction orthogonal to a thickness direction of compressed body (11) and a second maximum length in a second direction orthogonal to the thickness direction of compressed body (11) and the first direction, at least one of the first maximum length and the second maximum length being 5 times or more and 50 times or less an average thickness of compressed body (11).
Resumen de: US2025219089A1
A cathode for a lithium secondary battery according to embodiments of the present disclosure includes a cathode current collector, a first cathode active material layer which is disposed on at least one surface of the cathode current collector, and includes a first cathode active material having a single particle form and a point-like conductive material, and a second cathode active material layer which is disposed on the first cathode active material layer, and includes a second cathode active material having a single particle form and a linear conductive material, wherein the second cathode active material has an average particle diameter (D50) of 3 μm to 4 μm.
Resumen de: US2025219053A1
Provided is a negative electrode material for a lithium-ion secondary battery capable of providing a high capacity lithium-ion secondary battery. A negative electrode material for a lithium-ion secondary battery containing a composite (C) that contains a porous carbon (A) and a Si-containing compound (B), wherein the porous carbon (A) satisfies V1/V0>0.80 and V2/V0<0.10, when a total pore volume at the maximum value of a relative pressure P/P0 is defined as V0 and P0 is a saturated vapor pressure, a cumulative pore volume at a relative pressure P/P0=0.1 is defined as V1, and a cumulative pore volume at a relative pressure P/P0=10−7 is defined as V2 in a nitrogen adsorption test, and has a BET specific surface area of 800 m2/g or more; and wherein the Si-containing compound (B) is contained in pores of the porous carbon (A).
Resumen de: WO2025139117A1
An electric device (4000). The electric device (4000) comprises a battery pack (3000). The battery pack (3000) comprises a battery module (2000) or a battery (1000). The battery module (2000) comprises the battery (1000). The battery (1000) comprises a battery cell (100). The battery cell (100) comprises a cell core (1), a first current collecting member (2), and a second current collecting member (3). One end of the cell core (1) is provided with a first tab (11) and a second tab (12). The first current collecting member (2) is arranged at said end of the cell core (1), and the first current collecting member (2) is connected to the first tab (11). The second current collecting member (3) is arranged at said end of the cell core (1), the second current collecting member (3) is connected to the second tab (12), and at least one of the second current collecting member (3) and the first current collecting member (2) is a single-layer structural member.
Resumen de: WO2025139107A1
A non-aqueous electrolyte, a lithium-ion battery, and an electric device. The non-aqueous electrolyte comprises an electrolyte additive, wherein the electrolyte additive comprises one or more of Li3+xPO4-xNx, Li3yLa2/3-yTiO3, and Li1+zAlzTi2-z(PO4)3, wherein 0
Resumen de: WO2025139097A1
An electric device, the electric device comprising a secondary battery, and the secondary battery comprising an electrode. The electrode comprises a lithium supplementation layer. The lithium supplementation layer comprises a lithium supplementation agent and a conductive agent. The ratio of the sum of the surface areas of the conductive agent in the lithium supplementation layer to the sum of the surface areas of the lithium supplementation agent in the lithium supplementation layer is (0.5-5):1.
Resumen de: WO2025138197A1
Provided in the present application are a battery anti-explosion structure, a battery, and a battery pack. The battery anti-explosion structure comprises a cover plate; a first notch and a second notch are provided on the cover plate, where the thickness of the cover plate at the first notch is less than the thickness of the cover plate at the second notch; the first notch comprises a first segment and a second segment that are connected together, the first segment has a first end and a second end, the second segment has a third end and a fourth end, and the distance between the first end and the third end is greater than the distance between the second end and the fourth end.
Resumen de: WO2025138127A1
A device and method for preparing a lithium battery negative electrode material. The device comprises: a vacuum chamber, a hollow cathode, an anode, a conveying channel, and an air intake duct. The hollow cathode and the anode are disposed in the vacuum chamber. A reaction area for generating plasma is formed between the hollow cathode and the anode. The conveying channel is disposed in a hollow channel of the hollow cathode. A feeding port of the conveying channel is located at an end of the hollow cathode in the vacuum chamber. The conveying channel is configured to convey particles comprising a first element. An air inlet of the air intake duct is disposed in the reaction area. The air intake duct is configured to introduce a reaction gas comprising a second element. The reaction gas is ionized into a plasma in the reaction area. The plasma and the particles form composite particles which can be used as a lithium battery negative electrode material. The cores of the composite particles comprise the first element. The shells of the composite particles comprise the second element.
Resumen de: WO2025138136A1
A secondary battery and an electronic apparatus, belonging to the technical field of batteries. The secondary battery is in a curved shape. A first outer arc anode active material layer of a first anode sheet of an outer arc side electrode assembly of the secondary battery is divided into two layers, and the binder mass content of a first inner arc anode active material layer thereof and the binder mass content of the inner layer of the first outer arc anode active material layer are made to be greater than that of the outer layer thereof, the binder mass content being negatively correlated with the rebound of the layers. Thus, when in use, the layer having relatively weaker rebound resistance exerts shear stress on the layer having relatively stronger rebound resistance, thereby effectively enhancing the arc rebound resistance performance. The degree of arc rebound on the outer arc side of a curved electrode assembly is greater than the degree of arc rebound on the inner arc side thereof. Arranging the electrode assembly having relatively stronger arc rebound resistance on the outer arc side and the electrode assembly having relatively weaker arc rebound resistance on the inner arc side effectively reduces the difference in arc rebound between the electrode assemblies of the curved electrode assembly, thus allowing for better fit between the electrode assemblies and ameliorating the problem that curved electrode assemblies are prone to arc rebound and black spot phenomena.
Resumen de: WO2025138118A1
A secondary battery and an electronic apparatus, which belong to the technical field of batteries. By means of an outer arc anode active material layer of an anode piece curved in a first direction X, the anode piece is divided, in the direction from inside to outside, into a first active material layer and a second active material layer, and same is made so that the mass content of a binder in the first active material layer and an inner arc anode active material layer are greater than the mass content of a binder in the second active material layer; the inner arc anode active material layer and the first active material layer that have a higher binder mass have relatively strong opposing movement prevention capabilities, whereas the second active material layer having a lower binder mass has relatively weak opposing movement prevention capabilities; when the anode piece is used as an electrode assembly, the second active material layer having relatively weak opposing movement prevention capabilities produces shear stress on the inner arc anode active material layer and the first active material layer having relatively strong opposing movement prevention capabilities, where the production of said shear stress can effectively reduce the degree of oppositional arc movement.
Resumen de: US2025219125A1
A method of manufacturing a stackable-foldable electrode assembly utilizing a negative electrode structure having a negative electrode comprising a lithium metal layer interposed between two separating films is provided. The method includes the steps of positioning a lithium metal layer to protrude in a width direction between two separating films, manufacturing a negative electrode structure by joining the lithium metal layer and the two separating films, laminating one positive electrode on the negative electrode structure, folding the negative electrode structure in the width direction to enclose the positive electrode, repeating the previous steps to manufacture an electrode laminate comprising a plurality of positive electrodes, cutting a portion of the lithium metal layer protruding in the width direction to form negative electrode tabs, and joining the negative electrode tabs. The method of manufacturing an electrode assembly may minimize processing of the lithium metal, thereby improving the productivity of the electrode assembly.
Resumen de: US2025219141A1
Provided is a non-aqueous electrolyte solution that may improve high-temperature stability and life characteristics of a lithium secondary battery by forming a thin and stable SEI layer, wherein it comprises an organic solvent; a lithium salt; a compound represented by Formula I; and at least one selected from the compounds represented by Formula II to Formula Vwherein all the variables are as described herein.
Resumen de: US2025220864A1
A battery charger and a method of operating a battery charger. The charger may include a housing defining an air inlet and an air outlet; a charging circuit operable to output a charging current to charge a battery couplable to the battery charger; a tubular heat sink; and a fan operable to cause air flow from the air inlet to the air outlet and along the heat sink. The charger may include a first switch operable to electrically connect the charging circuit to a power source when the battery engages the charger; and a second switch operable to electrically connect the charging circuit to a battery terminal after the charger terminal is electrically connected to the battery terminal. The charging current or a fan speed may be adjusted based on at least one of the temperature of the charger or a temperature of the battery.
Resumen de: US2025220865A1
A cooling module does not include a reserve tank inside, but includes a manifold made of resin and including a plurality of housings joined to each other, and the manifold includes a plurality of channels formed across at least two of the plurality of housings.
Resumen de: US2025220847A1
An energy storage cabinet and a cabinet-type energy storage device are disclosed. The energy storage cabinet includes a cabinet body, a baffle and an energy converter. A partition is provided in the cabinet body. An internal space of the cabinet body includes a battery chamber and a converter chamber separated by the partition. Side plates of the cabinet body has an air inlet and an air outlet communicated with the converter chamber. The baffle is located in the converter chamber and separates the converter chamber into a cold air cavity and a hot air cavity. The energy storage converter is located in the converter chamber and has a heat-dissipation air duct. The heat-dissipation air duct includes an air inlet port located at an air inlet end of the energy storage converter and an air outlet port located at an air outlet end of the energy storage converter.
Resumen de: WO2025140375A1
Porous carbon for a negative electrode material and a preparation method therefor. In a Raman spectrogram of the porous carbon, the ratio (ID/IG) of D peak intensity (ID) to G peak intensity (IG) is 0.10-1.50; and in an X-ray diffraction pattern of the porous carbon, the diffraction angle 2θ of a (002) crystal plane is 24.00-26.53°, and the specific surface area BET of the porous carbon is 600-3000 m2/g. A composite material comprising the porous carbon, a negative electrode sheet comprising the composite material, and a lithium ion secondary battery. The porous carbon material has desirable properties, such as graphitization degree and pore structure. The composite material can be used as a battery negative electrode material, and can significantly improve the electrical properties of the battery. The methods for preparing the porous carbon and the composite material are simple and easy to operate, and can be applied to batch production.
Resumen de: WO2025140372A1
Disclosed in the present utility model is a water inlet and outlet structure of a battery pack with externally-mounted sensors. A water inlet and a water outlet are provided on a battery pack, and the water inlet and the water outlet are respectively in communication with a flow channel starting end and a flow channel termination end inside the battery pack; sensors are respectively arranged on a side wall of the water inlet and a side wall of the water outlet; the sensor arranged on the side wall of the water inlet is used for collecting the temperature and water pressure of a refrigerant liquid at the position of the water inlet; and the sensor arranged on the side wall of the water outlet is used for collecting the temperature and water pressure of the refrigerant liquid at the position of the water outlet. The present utility model aims to improve the design of the sensors in the regions of the water inlet and the water outlet of the battery pack, save on the internal design space of the battery pack, improve the reliability and convenience of information acquisition, and reduce the after-sales maintenance cost while reducing the manufacturing cost.
Resumen de: WO2025138581A1
A high-voltage box (100), comprising a box body (10), a cover plate (20) covering an opening of the box body (10), and electrical components provided in an accommodating space in the box body (10). The box body (10) comprises a first side plate (101) and a second side plate (102) opposite to each other; the accommodating space is located between the first side plate (101) and the second side plate (102); the electrical components comprise a battery management system (302), a positive electrode fuse (305) on a positive electrode loop and/or a negative electrode fuse (306) on a negative electrode loop; and the battery management system (302) is close to the first side plate (101), and the positive electrode fuse (305) and the negative electrode fuse (306) are close to the second side plate (102).
Resumen de: WO2025138540A1
A non-aqueous electrolyte and a lithium-ion battery, the non-aqueous electrolyte comprising a lithium salt, an additive, and a solvent, and the additive comprising an o-phenylene trimethyl silicon oxyborate compound. According to the provided non-aqueous electrolyte, not only can the technical problem in the prior art of the service life of a lithium-ion battery being shortened when cycling and storage are carried out under high-temperature conditions be solved, but also the non-aqueous electrolyte can also have good overcharge prevention capabilities, so as to protect a battery cell.
Resumen de: WO2025138176A1
The present invention belongs to the technical field of lithium iron phosphate materials, and provides a modified iron phosphate material and a lithium iron phosphate material, and preparation methods therefor and the use thereof. The modified iron phosphate material is integrally in a sheet shape and comprises zirconium phosphate of a lamellar structure, wherein elemental silver and lithium oxide are loaded between lamellas of the zirconium phosphate, and iron phosphate is formed on the outer surface of the zirconium phosphate. The modified iron phosphate material can be further prepared into a lithium iron phosphate material for use in a battery, and can improve the rate capability, coulombic efficiency, capacity and conductivity of the battery. The preparation methods for the modified iron phosphate material and the lithium iron phosphate material are simple and can realize industrial production.
Resumen de: WO2025138189A1
An oxyhalide solid-state electrolyte, a preparation method therefor, and a battery. The general formula of the oxyhalide solid-state electrolyte is Li 2a+bM bO aX' cX" d, wherein M is selected from Ta, In, or Zr, X is selected from the halogens, 0.5≤a≤1.6, 1≤b≤1.5, 5≤c+d≤7.5, and both c and d are numbers greater than or equal to 0. In a humid environment, the ionic conductivity of the oxyhalide solid-state electrolyte is reduced by very little in comparison to when same is in a dry environment, and the oxyhalide solid-state electrolyte still has good ionic conductivity.
Resumen de: WO2025138201A1
Disclosed in the present application are an anti-explosion structure, a battery, and a battery pack. The anti-explosion structure comprises a cover plate and an anti-explosion recess; the anti-explosion recess comprises a first sub-recess and a second sub-recess, the thickness of the cover plate at the location of the first sub-recess is H1, and the thickness of the cover plate at the location of the second sub-recess is H2, where H1 < H2; wherein at a first pressure, the cover plate at the first sub-recess opens, and at a second pressure, the cover plate at the second sub-recess opens, the first pressure being P1, where 0.5 Mpa < P1 < 1.5 Mpa, and the second pressure being P2, where 1.5 Mpa ≤ P2 < 2.5 Mpa.
Resumen de: WO2025138984A1
A carbon material, a negative electrode material and a battery. The carbon material has pores; the total pore volume of the carbon material is 0.5 cm3/g to 1.6 cm3/g; and the crushing strength of the carbon material is U1 kN/cm2, and 0.05≤U1≤0.3. The carbon material has a suitable porosity, and can provide enough accommodating space for a silicon material and relieve the volume expansion of the silicon material; moreover, the crushing strength of the carbon material can be controlled within a suitable range to enable the carbon material to have a good structural stability, and therefore the collapse and fragmentation of the structure of the carbon material caused by volume expansion during lithium intercalation and deintercalation can be reduced, side reactions can be decreased, and the capacity and cycle performance of the negative electrode material can be improved.
Resumen de: WO2025137906A1
A lithium extraction and deintercalation electrode plate and a manufacturing method therefor and a use thereof. An active layer of the lithium extraction and deintercalation electrode plate comprises a lithium-rich positive electrode material after delithiation and alginate. The alginate is used for improving the hydrophilicity of the electrode plate, and at the same time, a hydrogel structure is produced by the alginate and dissolved-out metal ions under the gelation effect generated in a water flow environment during a lithium intercalation and deintercalation cycle, so that lithium ion transport can be enhanced; the mechanical properties of the electrode plate can be improved, and the stability thereof in all directions can be maintained, thereby solving the problems of falling-off of substances and poor stable lithium-ion transport capability caused by insufficient mechanical stability of the electrode plate during long-term use.
Resumen de: WO2025137966A1
The present invention relates to the technical field of analytical chemistry, and in particular to a measurement method for nickel, iron, copper and manganese in a battery material, comprising: first measuring the content of a manganese element, the content of an iron element, the content of a copper element, and the total amount of nickel, iron, copper and manganese elements, respectively, and then calculating the content of the nickel element on the basis of the total amount of nickel, iron, copper and manganese and the contents of the manganese element, the iron element and the copper element. During measurement of the content of the manganese element in the battery material, sodium pyrophosphate is used as a masking agent, such that Fe3+ can be masked while disproportionation of Mn3+ is inhibited, thereby achieving a double-masking effect, and ensuring the measurement accuracy of the manganese content. Therefore, the objective of accurately measuring the contents of four elements, i.e., nickel, iron, copper and manganese, in the battery material is achieved. In the measurement method, no expensive measurement device is required, and a constant analysis means is used; and by efficiently using the masking agent, the interference of coexistence elements on a specific element measurement method is effectively avoided, thereby achieving a stable and reliable measurement result.
Resumen de: US2025219709A1
The present disclosure relates to a battery management system, a battery pack including the same, and an operating method of the battery management system, and is directed to providing a battery management system capable of always maintaining the performance of wireless communication at a certain level or higher in various environments, a battery pack including the same, and an operating method of the battery management system. To this end, the present disclosure provides a battery management system including a plurality of antennas, a communication module configured to perform communication using any one of the plurality of antennas, a switch configured to selectively connect any one of the plurality of antennas and the communication module, and a processor configured to detect reception sensitivity of the antenna connected to the switch and control the switch based on the reception sensitivity.
Resumen de: US2025219240A1
Provided are a box, a battery, and an electric device. The box includes an electrical chamber, a collection chamber, an isolation component, and a processing device. The electrical chamber is configured to accommodate multiple battery cells, wherein at least one battery cell among multiple battery cells includes a pressure relief mechanism; The collection chamber is configured to collect emissions from the battery cells arranged with the pressure relief mechanism when the pressure relief mechanism is actuated; the isolation component is configured to isolate the electrical chamber and the collection chamber; and the isolation component is provided with a first through-hole, wherein the emissions can enter the collection chamber through the first through-hole. The processing device is arranged at the first through-hole and configured to treat the emissions to reduce a temperature and/or concentration of combustible material in the emissions.
Resumen de: US2025219233A1
An energy storage apparatus includes: an energy storage device array which includes a plurality of energy storage devices stacked in a first direction; a pair of end spacers; a side spacer, and a metal case. The side spacer is coupled to each of the pair of end spacers. The metal case accommodates the energy storage device array, the pair of end spacers, and the side spacer. The side spacer includes a rib protruding towards the energy storage device array. The rib is provided integrally with the side spacer, and is in contact with an energy storage device, among the plurality of energy storage devices, which is in a position facing the rib.
Resumen de: US2025219231A1
A battery and an electric apparatus are disclosed. The battery includes a box and a bushing, where the box is provided with a mounting beam, that includes a first beam that is provided with a first mounting hole, and a second beam that is provided with a second mounting hole, the bushing includes a flange portion, a rod portion, and a connecting portion, the flange portion and the connecting portion are respectively connected to two ends of the rod portion, the flange portion protrudes from the rod portion, the rod portion passes through the first mounting hole, the connecting portion passes through the second mounting hole. the flange portion is sealably connected to the first beam and/or the rod portion is sealably connected to a wall of the first mounting hole, and the connecting portion is sealably connected to a wall of the second mounting hole.
Resumen de: WO2025138476A1
The present application provides an iron-doped lithium-rich manganese-based precursor material, a preparation method therefor, and a use thereof. The iron-doped lithium-rich manganese-based precursor material comprises a lithium-rich manganese-based precursor base material and iron element doped on a surface layer of the lithium-rich manganese-based precursor base material. The preparation method comprises the following steps: in a protective atmosphere, concurrently adding a main metal source mixed salt solution, a precipitant solution, and a first complexing agent solution for a first stage of co-precipitation reaction, and then adding an iron source solution to continue a second stage of co-precipitation reaction to obtain the iron-doped lithium-rich manganese-based precursor material. In the present application, after the surface layer of the lithium-rich manganese-based precursor base material is doped with iron to further prepare a positive electrode material, the iron element therein is converted into TMFe2O4 (TM is a main metal element), so that the electrochemical performance of a lithium-rich manganese-based positive electrode material is improved.
Resumen de: WO2025140201A1
A ternary material, having a chemical formula of LiNi1-x-yCoxMnyMaO2, wherein 0
Resumen de: WO2025139923A1
The present application provides a temperature control line assembly, a battery module mounting bracket, a battery cluster, and an energy storage device. The temperature control line assembly mainly shunts a heat transfer medium flowing out of a temperature control apparatus to each battery module, so that each battery module in a battery cluster has a good heat dissipation effect, thereby improving the working stability and the service life of an energy storage device.
Resumen de: WO2025139963A1
A sodium-ion battery and an electric device. The sodium-ion battery comprises a positive electrode, a negative electrode, a separator and an electrolyte; the electrolyte comprises a cyclic carbonate ester solvent and/or a carboxylic ester solvent; the ratio of the mass ratio of the cyclic carbonate ester solvent in the electrolyte to the sum of the D50 particle size of a positive electrode active material and the D50 particle size of a negative electrode active material is 0.005:1 to 0.2:1; and the ratio of the mass ratio of the carboxylic ester solvent in the electrolyte to the sum of the D50 particle size of the positive electrode active material and the D50 particle size of the negative electrode active material is 0.002:1 to 0.1:1, wherein the unit of the D50 particle size is μm. By reasonably designing the specific association relationship between the D50 particle size of the positive and negative electrode active materials and the solvents in the electrolyte, the sodium-ion battery can effectively balance the ion transmission and ion diffusion capabilities in the battery charging and discharging process, thereby improving the low-temperature dynamic performance of the battery, and also considering the high-temperature performance.
Resumen de: WO2025139258A1
A battery assembly and a device. The battery assembly comprises a plurality of single batteries, and heat-absorbing members are provided between oppositely arranged first surfaces of at least some adjacent single batteries. Each heat-absorbing member comprises a main heat-absorbing material, the main heat-absorbing material comprises a heat-absorbing material, and the latent heat Hp of phase change of the heat-absorbing material is greater than or equal to 500 kJ/kg. The mass m of the main heat-absorbing material in kg satisfies the following relational expression: 0.5Q/(α×Hp)≤m≤1.5Q/(α×Hp).
Resumen de: WO2025139260A1
An electrical system, the electrical system being provided with a battery pack, and the battery pack being provided with a battery assembly. The battery assembly comprises two adjacent battery cells and a heat-absorbing substance layer arranged between the adjacent battery cells. Opposite surfaces of the two adjacent battery cells are first surfaces, the heat-absorbing substance layer is located between the first surfaces of the two adjacent battery cells, the volume of the heat-absorbing substance layer is V, and 0.2*A*B≤V≤(z-α*w*C)*A*B is satisfied. mm is the unit used for A, B, C, and z. The distance between the first surfaces of the two adjacent battery cells is z, the rate of volume expansion of a battery cell in the end state of the service life of the battery cell is w, the length of the battery cell is A, the width of the battery cell is B, the thickness of the battery cell is C, and α is a correction coefficient.
Resumen de: WO2025139238A1
The present invention relates to an acrylate polymer, a dispersant, a preparation method, an electrode slurry, an electrode pole piece, and a battery. The acrylate polymer comprises a repeat unit I, a repeat unit II, and a repeat unit III; based on the total mass of the acrylate polymer, the mass percentage of the repeat unit I is 30.0% -70.0%, and the mass percentage of the repeat unit III is 20.0%-60.0%. The preparation method is simple. Further, when the dispersant containing the acrylate polymer is used in the electrode slurry, the dispersion viscosity reduction and viscosity stabilization effects are excellent, further improving the mass stability of the battery.
Resumen de: WO2025139216A1
A negative electrode active material, and a preparation method therefor and the use thereof. The negative electrode active material comprises negative electrode active material particles, wherein each of the negative electrode active material particles comprises a silicon-based core and a carbon film layer covering the surface of the silicon-based core. The negative electrode active material satisfies formula (I), wherein Dcal is the calculated average particle size of the negative electrode active material; D10 is the particle size corresponding to the value of 10% on the volume-based cumulative particle size distribution curve of the negative electrode active material; D50 is the particle size corresponding to the value of 50% on the volume-based cumulative particle size distribution curve of the negative electrode active material; D90 is the particle size corresponding to the value of 90% on the volume-based cumulative particle size distribution curve of the negative electrode active material; and the calculated average particle size Dcal of the negative electrode active material satisfies: 2≤Dcal≤15, preferably, 3≤Dcal≤15, and further preferably, 4≤Dcal≤13. A battery using the negative electrode active material has better cycling stability, significantly reduced internal resistance changes, and more stable average output voltage and energy density.
Resumen de: WO2025137939A1
A cylindrical secondary battery and an electronic device. The cylindrical secondary battery comprises a negative electrode sheet, the negative electrode sheet comprises a negative electrode current collector and a negative electrode material layer located on at least one surface of the negative electrode current collector, and the negative electrode material layer includes a first negative electrode material layer and a second negative electrode material layer. The first negative electrode material layer is located between the negative electrode current collector and the second negative electrode material layer, the first negative electrode material layer and the second negative electrode material layer each comprise a silicon-based material, and based on the mass of the negative electrode material layer, the mass percentage content of the element Si in the first negative electrode material layer is greater than the mass percentage content of the element Si in the second negative electrode material layer. The second negative electrode material layer is provided with a plurality of stripes, the plurality of stripes extend in the width direction of the negative electrode sheet when the negative electrode sheet is unfolded, and the plurality of stripes are arranged at intervals in the length direction of the negative electrode sheet when the negative electrode sheet is unfolded. By means of the described configuration, an electrolyte has good wetting performance on the negative
Resumen de: WO2025137761A1
A portable and convenient swappable battery and a battery swapping system are disclosed. The proposed battery (called UNiBat) is relatively robust and simple in design, with many features and capabilities, and it is practical and flexible for use in many applications, thus having the Potential to be standardised, be used in a large scale, and be adopted in EV's manufacturing, energy storage and other sectors. The proposed battery swapping system could be entirely embedded on the EV or any application in general since it has a simple design, and its swapping operation could work basically without any added external mechanism at the swapping station or even anywhere.
Resumen de: AU2025204349A1
Abstract: A system for extracting hydrogen gas from a liquid hydrogen carrier may include a hydrogen gas reactor, a catalyst for facilitating extraction of the hydrogen gas from the liquid hydrogen carrier, and a reservoir for containing the liquid hydrogen carrier and a spend liquid hydrogen carrier. The system may be configured to regulate a flow of liquid hydrogen carrier in and out of the hydrogen gas reactor, to move a catalyst relative to a volume of the liquid hydrogen carrier, and to provide a continuous flow of the hydrogen gas, in response to a demand for the hydrogen gas. Abstract: A system for extracting hydrogen gas from a liquid hydrogen carrier may include a hydrogen gas reactor, a catalyst for facilitating extraction of the hydrogen gas from the liquid hydrogen carrier, and a reservoir for containing the liquid hydrogen carrier and a spend liquid hydrogen carrier. The system may be configured to regulate a flow of liquid hydrogen carrier in and out of the hydrogen gas reactor, to move a catalyst relative to a volume of the liquid hydrogen carrier, and to provide a continuous flow of the hydrogen gas, in response to a demand for the hydrogen gas. un b s t r a c t : s y s t e m f o r e x t r a c t i n g h y d r o g e n g a s f r o m a l i q u i d h y d r o g e n c a r r i e r m a y i n c l u d e a h y d r o g e n g a s r e a c t o r , a c a t a l y s t f o r f a c i l i t a t i n g e x t r a c t i o n o f t h e h y d r o g e n g a s f r o m t h e l i q u i d h y
Resumen de: US2025214487A1
A battery self-heating control system includes a battery pack, a winding, a first switch assembly, a second switch assembly, a capacitor, and a controller. The battery pack includes a first battery group and a second battery group connected in series, a connection line led out between the first and the second battery groups, and connected to one end of the winding. The first switch assembly and the second switch assembly are connected in series, the first switch assembly is electrically connected to a positive electrode of the first battery group and a first end of the capacitor, the second switch assembly is electrically connected to a negative electrode of the second battery group and a second end of the capacitor, the first end and the second end of the capacitor connected to a load. The controller is electrically connected to the first switch assembly and the second switch assembly.
Resumen de: US2025214173A1
An etching machine is disclosed. The etching machine according to an embodiment of the present disclosure includes a laser source; a scanner configured to deflect light from the laser source to an electrode current collector coated with an electrode active material; and a processor configured to control at least one of the laser source or the scanner to keep a pulse distance of the light incident on the electrode current collector constant.
Resumen de: US2025214410A1
A power storage unit includes power storages each including a long side portion and a short side portion, each of the power storage being in a longitudinal shape. The power storages include first power storages arranged on one side in a first direction, second power storages arranged on the other side in the first direction, and at least one third power storage arranged between the first power storages and the second power storages. The first power storages and the second power storages are arranged as being aligned in a second direction in horizontal arrangement, and the at least one third power storage is arranged in longitudinal arrangement.
Resumen de: US2025214409A1
An arrangement of an electrical energy store on a body shell for a passenger car. The body shell has two side sills between which a main floor extends, where the entire main floor is formed by a housing cover of a housing of the electrical energy store. The housing has a lower part which is located, in the passenger car vertical direction, below the housing cover and has a receiving space for storage cells for storing electrical energy. The receiving space is formed by the housing cover and the lower part. The housing cover has cooling ducts through which coolant is flowable where at least a portion of the electrical energy store is coolable by the coolant. Spaces are located between the storage cells and at least parts of a floor of the lower part.
Resumen de: US2025214448A1
A rechargeable battery system for a lift device includes a battery configured to power at least one component of the lift device, a heating system configured to selectively provide heat to the battery, and a battery charger connected to the battery and to the heating system. The heating system is configured to selectively receive power from the battery through a battery power connection or from the battery charger through a battery charger power connection.
Resumen de: WO2025140128A1
The application discloses an electrochemical apparatus, a battery pack and an electric device. The electrochemical apparatus comprises a housing, an electrode terminal, an electrode assembly, a current cut-off apparatus and an electrolyte. The electrode terminal is arranged on the housing. The electrode assembly and the electrolyte are accommodated in the housing. The current cut-off apparatus is connected to the electrode terminal and the electrode assembly. The electrolyte comprises lithium hexafluorophosphate and fluoroethylene carbonate. In the charging process in a high-temperature environment and in a large-rate discharge process, the electrochemical apparatus is not prone to generating gas, can endure harsh charging and discharging environments, and has good cycle performance and cycle life.
Resumen de: WO2025140122A1
Disclosed in the present application are an electrochemical apparatus, a battery pack and an electric device. The electrochemical apparatus comprises a housing and an electrode assembly accommodated in the housing. The electrode assembly comprises a first electrode sheet, a second electrode sheet and a separator, wherein the polarities of the first and second electrode sheets are opposite, and the first electrode sheet, the separator and the second electrode sheet are stacked and are wound in a winding direction. The first electrode sheet comprises a first current collector and a first active material disposed on the first current collector, wherein the first current collector comprises a first main body region and a first empty foil region; the first active material is disposed in the first main body region; and the first main body region and the first empty foil region are arranged in a direction perpendicular to the winding direction. The portion of the first empty foil region that is away from the first main body region forms a first flattened region. At a first ambient temperature, the electrochemical apparatus executes a discharge operation at a first discharge rate, and within the first 60 seconds of a continuous discharge operation, the electrochemical apparatus can keep the voltage not lower than 2 V and continuously perform external discharge, thereby improving the discharge performance of the electrochemical apparatus in a low-temperature environment.
Resumen de: WO2025139816A1
A positive electrode material and a preparation method therefor, and a lithium-ion battery, for use in providing a positive electrode material having both high energy density and excellent cycling stability. The positive electrode material comprises: a substrate, and a coating layer covering the surface of the substrate. The crystalline phase structure of the substrate is a layered phase; and the coating layer comprises lithium manganese iron phosphate particles, and a polymer film that fills the gaps among the lithium manganese iron phosphate particles and covers the outermost surface of the lithium manganese iron phosphate particles coated on the surface of the substrate.
Resumen de: WO2025139201A1
An electrode sheet, comprising a first surface and a second surface which are oppositely arranged, a first active substance layer being provided on each of the first surface and the second surface. The electrode sheet has a first direction and a second direction, bright regions and dark regions being alternately arranged on the first active material layer in the first direction of the electrode sheet, the bright regions extending in the second direction of the electrode sheet, and the edges of the bright regions in the second direction being within the edge of the electrode sheet in the second direction. In the electrode sheet, the width of gap lithium strips is shortened to be smaller than the width of the first active substance layer, such that the lithium strips are prevented from extending out of the edge of the first electrode sheet, thereby solving the problem of lithium burrs on the edge of the first electrode sheet. Further provided is a battery cell, which comprises said electrode sheet and further comprises a second electrode sheet having a third surface and a fourth surface which are oppositely arranged, a second active layer being provided on each of the third surface and the fourth surface.
Resumen de: WO2025139043A1
An electrical device, the electrical device comprising a battery pack, the battery pack comprising a battery or a battery module, the battery module comprising the battery, the battery comprising a battery cell, and the battery cell comprising a casing, an electrode core, and a separation member. The electrode core is arranged within the casing; two ends of the electrode core in the length direction are a first end and a second end, where the first end is provided with a positive electrode tab and a negative electrode tab. The separation member is arranged within the casing, the separation member is located between the casing and the second end of the electrode core, and the separation member separates the electrode core from the casing.
Resumen de: WO2025138662A1
The present disclosure relates to the technical field of carbon black materials, and in particular relates to highly conductive carbon black, a preparation method therefor, a device, an electrode, and a secondary battery. The highly conductive carbon black has an average primary particle size of 20-40 nm; and the carbon black primary particles comprise spheres and graphene-like protruding pieces located on the surfaces of the spheres. The carbon black of the present disclosure has graphene-like protruding pieces on the surfaces of the spheres, allowing the carbon black to simultaneously have properties of both carbon black and graphene; node-to-surface contact can be formed between primary particles or with electrode material particles, thereby improving conductivity; and the present invention can significantly improve the conductivity of a slurry and an electrode.
Resumen de: US2025219086A1
An energy storage device according to one aspect of the present invention includes: a positive electrode including a positive active material layer containing a positive active material; and a nonaqueous electrolyte, in which the positive active material contains a polyanion compound containing a transition metal element and including a surface at least partially covered with carbon, a ratio of a second BET specific surface area, which is a BET specific surface area of the carbon, to a first BET specific surface area, which is a BET specific surface area of the positive active material layer is more than 10% and less than 35%, and the nonaqueous electrolyte contains an electrolyte salt containing no sulfur element and a sulfur-based compound.
Resumen de: US2025219052A1
A negative electrode plate for a lithium battery and a lithium-ion secondary battery including same are provided. The negative electrode plate includes a negative electrode current collector and a negative electrode material. The negative electrode material includes: a negative electrode active material including graphite and a silicon-based material; a conductive agent; a binder including carbon nanotubes; and a dispersing agent including one or both of lignosulfonate and humic acid.
Resumen de: US2025219048A1
In a method for producing a solid-state lithium-ion conductor material, water and/or steam is used as a medium during the cooling or quenching of an obtained intermediate product. The intermediate product can be comminuted and/or subjected to a cooling process, resulting in the production of a powder in one or more comminution steps. The solid-state lithium-ion conductor material has an ion conductivity of at least 10−5 S/cm at room temperature and a water content of <1.0 wt %. The solid-state lithium-ion conductor material can be used in the form of a powder in batteries or rechargeable batteries, preferably lithium batteries or rechargeable lithium batteries, in particular, separators, cathodes, anodes, or solid-state electrolytes.
Resumen de: US2025219083A1
An anode for a lithium secondary battery according to embodiments of the present disclosure includes an anode current collector, a first anode active material layer formed on at least one surface of the anode current collector and including first pores, a second anode active material layer formed on the first anode active material layer and including artificial graphite and second pores, wherein a difference between the first pore aspect ratio and the second pore aspect ratio is 0.5 to 3.0.
Resumen de: US2025219051A1
Systems and methods for all-conductive battery electrodes may include an electrode coating layer on a current collector, where the electrode coating layer comprises more than 50% silicon, and where each material in the electrode has a resistivity of less than 100 Ω-cm. The silicon may have a resistivity of less than 10 Ω-cm, less than 1 Ω-cm, or less than 1 mΩ-cm. The electrode coating layer may comprise pyrolyzed carbon and/or conductive additives. The current collector comprises a metal foil. The metal current collector may comprise one or more of a copper, tungsten, stainless steel, and nickel foil in electrical contact with the electrode coating layer. The electrode coating layer comprises more than 70% silicon. The electrode may be in electrical and physical contact with an electrolyte. The electrolyte may comprise a liquid, solid, or gel. The battery electrode may be in a lithium ion battery.
Resumen de: US2025219209A1
A cylindrical secondary battery including an electrode assembly, a can accommodating the electrode assembly, a cap assembly electrically coupled to the electrode assembly and coupled to one side of the can to close an inlet of the can, and including a cap-up exposed to the outside, and a gasket between the cap assembly and the can. The cap-up may include a terminal part with a circular shape, a base part spaced apart from the terminal part and surrounding an outer side of the terminal part, and bridge parts configured to connect the terminal part to the base part and spaced apart from each other with a connection hole therebetween. A width of a part of each of the bridge parts connected to the terminal part may be less than a width of a part of each of the bridge parts connected to the base part.
Resumen de: US2025219206A1
A power storage module includes a laminate including a plurality of stacked electrodes and a pair of sheet members joined to each other, and an outer encasement for sealing the laminate inside, the plurality of electrodes including a cathode terminal electrode including a cathode active material layer, an anode terminal electrode including an anode active material layer, and a bipolar electrode disposed between the cathode terminal electrode and the anode terminal electrode, wherein each of the pair of sheet members has a peeling portion in which a portion of each of the pair of insulating layers is peeled from a metal layer disposed between the pair of insulating layers, and one of the pair of sheet members is disposed so as to face the anode terminal electrode, and the other peeling portion of the pair of sheet members is disposed so as to face the cathode terminal electrode.
Resumen de: US2025219139A1
A solid-liquid hybrid electrolyte membrane for a lithium secondary battery includes a liquid polyhedral oligomeric silsesquioxane (POSS), a polymer comprising functional groups compatible with the POSS, and a lithium salt.
Resumen de: US2025219138A1
Provided is a zwitterion organic framework for an all-solid-state secondary battery, and more specifically, a zwitterion organic framework for an all-solid-state secondary battery wherein the zwitterion organic framework is an organic framework, comprises a covalent bond and has a zwitterion structure.
Resumen de: US2025219207A1
An end cover assembly, a battery pack, a battery, and an electrical device are described. The end cover assembly comprises a first end cover, a second end cover, a first insulating member, an electrode terminal, and a collecting member; the first end cover is used to close an opening of a first case; the second end cover is used to close an opening of a second case; the first insulating member is disposed between the first end cover and the second end cover; the electrode terminal is mounted to the first end cover, the first insulating member, and the second end cover; the collecting member is embedded within the first insulating member and connected to the electrode terminal. The collecting member is embedded within the first insulating member. The collecting member is embedded within the first insulating member, which can further enhance insulation strength of the first insulating member.
Resumen de: WO2025139427A1
Disclosed in the present application are a valve-opening device and a vacuum oven. The valve-opening device comprises a lifting assembly, a support assembly and a valve-opening assembly, wherein the support assembly is arranged on the lifting assembly, and the lifting assembly is configured to drive the support assembly to move in a first direction; and one end of the valve-opening assembly in the first direction is connected to the support assembly, and the other end of the valve-opening assembly is configured to be in contact with a valve body at an electrolyte injection hole in a battery cell. A switching valve at the electrolyte injection hole can be opened under an acting force applied by the valve-opening assembly to the valve body, such that the interior of a casing of the battery cell is in communication with a chamber of the vacuum oven, thereby drying the battery cell in a vacuum environment, and improving the production efficiency of battery cells.
Resumen de: WO2025139428A1
A cover plate structure, comprising posts (1), a cover plate (2) and insulating parts (3). The posts (1) each partially pass through a through hole at an insulating part (3) and the cover plate (2); each insulating part (3) is partially arranged between a post (1) and the cover plate (2), so that the post (1) and the inner wall of a through hole of the cover plate (2) are spaced apart from each other; the surface of each insulating part (3) in contact with the cover plate (2) is provided with a groove around a post (1); the surface of the cover plate (2) in contact with the insulating parts (3) is provided with annular bulges, the bulges being inserted into the grooves in the circumferential direction.
Resumen de: WO2025139422A1
The present application provides a negative pressure adsorption device and a formation system. The negative pressure adsorption device comprises an adsorption body and an abutting portion; the adsorption body is provided with a channel, and an inlet and an outlet which are communicated with the channel; the abutting portion protrudes out of and is connected to one side of the adsorption body in a first direction and is arranged around the inlet. The abutting portion is arranged around the inlet of the adsorption body and covers an electrolyte injection hole of a battery, so as to ensure sealing in a battery formation process. The height dimension of the part of the abutting portion protruding out of the adsorption body in the first direction is adjustable, so that the abutting portion can drive the adsorption body to move towards the side of the electrolyte injection hole of the battery to press the adsorption body against an elastic switch valve, thereby keeping the elastic switch valve open in the formation process, and achieving valve opening for exhaust in the battery formation process.
Resumen de: WO2025139404A1
A liquid cooling plate of a battery pack, a battery pack having same, and a vehicle. The liquid cooling plate is provided with a bottom maintenance opening, and a liquid flow channel is provided inside the liquid cooling plate; and a liquid inlet and a liquid outlet are provided in the upper surface of the liquid cooling plate, and the bottom maintenance opening is located between the liquid inlet and the liquid outlet.
Resumen de: WO2025138538A1
The present application belongs to the technical field of batteries, and discloses a cover plate assembly and a single-cell battery. The cover plate assembly has a first direction. The cover plate assembly comprises a cover plate, the cover plate being provided with an explosion-proof hole in the first direction; an insulating member, the insulating member being connected to the cover plate in the first direction, and the insulating member being provided with an accommodating slot facing the cover plate; a support member, the support member being disposed in the accommodating slot, and the melting point of the support member being higher than the melting point of the insulating member; and a limiting member, the limiting member being disposed in the accommodating slot and being connected to the insulating member, and the limiting member abutting against the support member in a direction perpendicular to the first direction, so that the support member is fixed in the accommodating slot.
Resumen de: WO2025138499A1
A graphite negative electrode material and a preparation method therefor, a negative electrode sheet, and a lithium-ion battery, relating to the technical field of secondary batteries. According to the preparation method for the graphite negative electrode material, a graphite material is coated with amorphous carbon, and carbon coating is carried out in two steps; in a low-temperature mixing process, a graphitized product and a coating agent are uniformly mixed, and in a high-temperature dynamic coating process, in addition to completing further mixing, most of light components are removed by means of high-temperature heat treatment, the coating agent undergoes polycondensation and cross-linking, a surface coating layer with high isotropic degree and good coating effect is formed after carbonization, uncontrollable agglomeration in the subsequent carbonization process is avoided, and the graphite negative electrode material capable of realizing fast charging and considering energy density is prepared.
Resumen de: WO2025138468A1
Disclosed in the present application are a cells contact piece, a cells contact system and a battery pack. The cells contact piece comprises cells contact sub-pieces and flexible conductive connecting pieces, wherein a plurality of cells contact sub-pieces are provided, and the plurality of cells contact sub-pieces are respectively used for collecting working signals of a plurality of battery cell groups; and a connecting piece is provided between every two adjacent cells contact sub-pieces, two ends of each connecting piece are respectively connected to two cells contact sub-pieces adjacent thereto, and each connecting piece has a first bending structure, the first bending structure being configured to deform when two battery cell groups move away from or close to each other.
Resumen de: WO2025138443A1
The application discloses a battery pack and an electrical device. The battery pack comprises a box body, a battery cell, a liquid cooling plate attached to the battery cell, and a liquid inlet pipe and a liquid outlet pipe. A bottom protection plate is arranged at the bottom of the box body. The battery cell and the liquid cooling plate are arranged in the box body. The liquid cooling plate is provided with a liquid inlet nozzle and a liquid outlet nozzle. The liquid inlet nozzle and the liquid outlet nozzle both penetrate through the bottom protection plate to reach the outside of the box body. The liquid inlet pipe and the liquid outlet pipe are arranged outside the box body. The liquid inlet pipe is provided with a first quick connector, and the liquid outlet pipe is provided with a second quick connector. The first quick connector is connected to the liquid inlet nozzle, and the second quick connector is connected to the liquid outlet nozzle.
Resumen de: US2025219082A1
A positive active material is provided. In some embodiments, the positive material includes: a substrate and a coating layer coating the substrate, wherein the coating layer includes a fast ion conductor layer and a carbon coating layer, the substrate includes more than one compound of formula (I): LiFe1-aM1aPO4 formula (I), in formula (I), M1 is more than one selected from Cu, Mn, Cr, Zn, Pb, Ca, Co, Ni, Sr, Nb and Ti, and 0≤a≤0.01; the fast ion conductor layer includes a fast ion conductor of a NASICON structure shown in formula (II), Li3-bFe2-bM2b(PO4)3 formula (II), in formula (II), M2 is more than one selected from Ti, Zr, Hf, Ge and Sn with valence of +4, and 0≤b≤1.
Resumen de: US2025219049A1
An electrode assembly includes a positive electrode plate. The positive electrode plate features a single-sided groove embedded tab structure. The positive electrode plate includes a positive electrode current collector and a second positive electrode active material layer disposed on a second surface of the positive electrode current collector. The second positive electrode active material layer includes a second positive electrode active material, where the second positive electrode active material includes element M, and the element M includes at least one of manganese, iron, lanthanum, zirconium, or yttrium. The positive electrode plate of this application can enhance energy density of the electrochemical apparatus based on the existing embedded tab structure. At the same time, through the element M, thermal stability of the second positive electrode active material can be improved, thereby alleviating the aging problem of the positive electrode plate caused by the single-sided groove embedded tab structure.
Resumen de: US2025219070A1
The present invention may provide a cathode active material that exhibits excellent structural stability and lifespan retention rate even in a high-temperature environment where a battery is operating. In addition, the present invention may provide a cathode including an active material layer containing the cathode active material and provide a battery cell including the cathode. In addition, the present invention is aimed at providing a battery cell assembly including the battery cell. In addition, the present invention may provide an electric device including one or more selected from the group consisting of the battery cell and the battery cell assembly.
Resumen de: US2025219067A1
Particular embodiments may provide an anode material, comprising a compound of formula Li2—X—Y, wherein: X and Y are each independently a metal atom or a metalloid atom; the anode material has a discharge potential of less than about 0.4 V vs. Li/Li+; and the molar ratio of Li:X:Y is 2:1:1.
Resumen de: US2025219045A1
A highly conductive solid-state polymer-based electrode lithium-ion batteries and other battery components thereof. The electrode may be deployed in a battery which lacks solvent and allows lithium ions to pass through channels via the polymerized structure. The electrode is formed from a fibrous mat comprising a plurality of lithium-conductive fibers and inter-fiber spaces, wherein the fibrous mat is produced by electrospinning, electrospraying, and hybrid variations thereof of an aged slurry containing a lithium salt, a polymer binder, and a ceramic material. The battery further incorporates a solid-state polymer separator, wherein the lithium conductive polymers are formed through free radical polymerization and comprise a polymerized carbonate solvent between iterative spacers, a lithium conductive material, and a reinforcing additive, with an optional interface coating applied to one or more sides to ensure long-term operation. Various methods for manufacturing the electrodes and separator for solid-state lithium-ion batteries.
Resumen de: US2025219137A1
A gel polymer electrolyte for a lithium battery, including a gel polymer and a liquid electrolyte, and a lithium battery including the same, wherein the liquid electrolyte includes a lithium salt and an organic solvent, and the gel polymer is a crosslinked product of i) a multifunctional acrylic first polymerizable monomer including three of more polymerizable functional groups, and ii) a second polymerizable monomer selected from among urethane-acrylic monomers including two more functional groups.
Resumen de: US2025219136A1
Provided are a gel polymer electrolyte separator, and a preparation method and use thereof. The gel polymer electrolyte separator is prepared from raw materials including a masterbatch and an extractant, where the masterbatch includes the following components in mass percentage, based on a mass of the gel polymer electrolyte: 53% to 81% of an organic solvent, 10% to 21% of a polymer substrate, 6% to 19% of a pore-forming agent, and 1% to 8% of a nano-functional material; the polymer substrate is one or two selected from the group consisting of a polyvinylidene fluoride (PVDF) homopolymer and a PVDF-hexafluoropropylene (HFP) copolymer; and the nano-functional material is one or more selected from the group consisting of Al2O3, SiO2, TiO2, LLZO, LLZTO, LLTO, NASICON, LAGP, and LATP.
Resumen de: US2025219133A1
Described herein are processes for producing solid electrolyte materials. The processes include mixing one or more solid electrolyte precursors to form a composite, where the resulting composite includes a fatty acid.
Resumen de: US2025219131A1
The present invention relates to an all-solid-state battery comprising: a negative electrode, an electrolyte layer, and a positive electrode including positive electrode layer and a current collector supporting the positive electrode layer, wherein the positive electrode layer includes a first area adjacent to the electrolyte layer and a second area adjacent to the positive electrode current collector, the first area includes first solid-state electrolyte particles, the second area includes second solid-state electrolyte particles, and the first solid-state electrolyte particles are needle-like solid-state electrolyte particles.
Resumen de: US2025219127A1
A lithium ion secondary battery includes a negative electrode portion, a porous layer formed on at least one surface of the negative electrode portion, and a positive electrode portion. The porous layer includes a polymer binder and inorganic fine particles dispersed on the polymer binder. The positive electrode portion is bonded onto the porous layer through an adhesive portion arranged continuously or discontinuously. The adhesive portion includes a thermoplastic polymer having a viscosity ranging from 2000 cPs to 95000 cPs at 25° C., and a ratio of an area occupied by the adhesive portion ranges from 0.02% to 10% based on an area of one surface of the positive electrode portion. A lithium ion secondary battery including an electrode assembly which has excellent adhesion durability without impairing ionic conductivity between electrodes is also provided.
Resumen de: US2025219135A1
The present disclosure provides an electrolyte composition. The present disclosure also provides a composite composition comprising the electrolyte composition and an Argyrodite phase. Furthermore, the present disclosure is directed to a method of making and using the electrolyte composition.
Resumen de: WO2025139405A1
A battery pack and a vehicle having same. The battery pack comprises: a frame, separation assemblies, a liquid cooling plate, and a bottom protection plate. The frame is used for enclosing and forming a containing cavity. The separation assemblies are arranged in the frame so as to divide the containing cavity into multiple containing sub-cavities. The liquid cooling plate is located at the bottom portion of the frame, a bottom maintenance port is provided on the liquid cooling plate directly opposite to a containing sub-cavity, and the liquid cooling plate, the frame, and at least the separation assembly near the bottom maintenance port are fixedly connected. The bottom protection plate is below and detachably connected to the liquid cooling plate and is used for opening and closing the bottom maintenance port.
Resumen de: WO2025139403A1
A battery pack and a vehicle. The battery pack comprises a case and an electric control structure; a side maintenance access port is formed in the case; the electric control structure is arranged in the case and directly faces the side maintenance access port; the electric control structure comprises a first BDU module; the first BDU module comprises a first electrical casing, a fuse, and a current sensor; a first opening facing the side maintenance access port is formed in the first electrical casing; the fuse and the current sensor are detachably arranged in the first electrical casing; and the current sensor is connected to the fuse in series.
Resumen de: WO2025139402A1
A battery pack and a vehicle. The battery pack comprises a case, a battery module, and an electrical module; the case comprises a front side wall and a back side wall, and a side inspection port is formed on the back side wall; the battery module is located in the case; the electrical module is mounted in the case; the electrical module comprises an electrical connection structure, a first electrical part and a second electrical part; the first electrical part is located on the back side of the battery module and is arranged opposite to the side inspection port; the second electrical part is located on the front side of the battery module; the electrical connection structure is configured to be electrically connected to the first electrical part, the second electrical part and the battery module.
Resumen de: WO2025139359A1
Provided in the present application are a pole piece preheating oven, comprising a box body, a supporting assembly, and a plurality of first infrared heating pipes; a preheating chamber is arranged in the box body; and the supporting assembly and the first infrared heating pipes are assembled in the preheating chamber. The first infrared heating pipes are arranged in the preheating chamber to act as a heat source to preheat a pole piece supported by the supporting assembly, utilising the characteristics of high heat transfer efficiency and high power density, and thereby achieving a rapid response to temperature requirements, meeting actual production needs and increasing production efficiency.
Resumen de: WO2025138430A1
Disclosed in the present application are a BDU device and a battery pack. The BDU device comprises a shell, a heating element and a heat conduction plate, wherein an opening is provided in one end of the shell; the heating element is arranged in the shell; and the heat conduction plate has a first side and a second side facing away from each other, the first side being located in the opening and thermally coupled to the heating element, and the second side being located outside the shell.
Resumen de: WO2025138414A1
A polyimide binder, a lithium battery positive electrode sheet and a preparation method therefor and a use thereof. The polyimide binder is a high-molecular polymer obtained by polymerization, chemical imidization, and post-treatment of a diamine monomer and a dianhydride monomer, wherein the imidization rate is 65-80%; the polyimide binder contains an aromatic group, a fatty group, and a carboxyl group; and the carboxyl content of the polyimide binder is 0.4-1.5 mmol/g, and the number-average molecular weight of the polyimide binder is 100,000-400,000. The positive electrode sheet comprises the polyimide binder. The positive electrode sheet is applied to a lithium battery. The polyimide binder has both rigidity and flexibility and also has relatively high adhesion. Polyimide is not prone to degradation during a charge/discharge cycle and high-temperature operation, so that the rate and cycle performance of a battery are stable.
Resumen de: WO2025138402A1
Provided in the present application are an energy storage apparatus and an energy storage system. The energy storage apparatus comprises: a battery rack; battery packs, which are arranged on the battery rack, wherein each battery pack comprises a housing and a pressure relief valve arranged on the housing, a through hole being provided one side of the housing; and a gas collection assembly, which comprises a ventilation pipeline and a gas extraction device, wherein the ventilation pipeline is connected to the housing of each battery pack and covers the pressure relief valve, and the gas extraction device is configured to discharge a gas that is discharged from the battery pack into the ventilation pipeline after the pressure relief valve is opened.
Resumen de: WO2025138400A1
An electrolyte, which comprises: 20-80 wt% of an ether solvent, 5-20 wt% of a lithium salt, 5-70 wt% of an ionic liquid, 5-30 wt% of an ester solvent, and 0-8 wt% of an additive. The electrolyte system has good compatibility with a metal lithium negative electrode, and the voltage window is relatively high.
Resumen de: WO2025138392A1
Provided in the present application are a current imbalance control method, control apparatus and control device, and an energy storage system, which can solve the problem of current imbalance among battery packs. The control method comprises: acquiring DCR of battery packs; and on the basis of the DCR of a plurality of battery packs, determining whether there is current imbalance among the plurality of battery packs. By means of acquiring the DCR of the battery packs and on the basis of the difference between the DCR of the plurality of battery packs connected in parallel, the current imbalance among the plurality of battery packs connected in parallel can be detected and prevented in a timely manner, thereby improving the charging and discharging performance of the entire energy storage system.
Resumen de: US2025219071A1
The present invention relates to a positive electrode active material and a lithium secondary battery including the same, and more particularly, to a positive electrode active material including an overlithiated lithium manganese-based oxide, which is capable of preventing the electrochemical properties of a lithium secondary battery, including rate characteristics, from being degraded due to an excess of lithium and manganese in the lithium manganese-based oxide, and particularly preventing the lifetime degradation of a lithium secondary battery by inhibiting or mitigating the elution of a transition metal from the lithium manganese-based oxide, and a lithium secondary battery including the same.
Resumen de: US2025219064A1
A non-aqueous electrolyte secondary battery according to one embodiment of the present invention comprises a positive electrode 11, a negative electrode 12, and a non-aqueous electrolyte. The negative electrode 12 contains graphite, a Si-containing material, and carbon nanotubes. The non-aqueous electrolyte includes at least one compound selected from the group consisting of first compounds represent by formula 1 and second compounds represented by formula 2.
Resumen de: US2025219081A1
A secondary battery, including a positive electrode material, the positive electrode material includes lithium manganese iron phosphate, a chemical formula of the lithium manganese iron phosphate being LiMnaFebPO4, where a+b=1, and 0.5≤a≤0.8; and the secondary battery is configured as follows: in response to discharge of the secondary battery, a discharge cutoff voltage value of the secondary battery is greater than or equal to 2.8 V, and the discharge cutoff voltage value of the secondary battery is less than or equal to 3.2 V.
Resumen de: US2025219046A1
A first metal foil has a first surface and a second surface, a first end and a second end being arranged at ends of the first metal foil in one direction. In a second metal foil, a third end and a fourth end are arranged at ends of the second metal foil in the one direction. The second end and the fourth end are aligned, and the second metal foil is stacked on the first surface of the first metal foil. A bending point is arranged between a central position and the second end, and the first metal foil and the second metal foil are bent at the bending point to place the second surface of the first metal foil in contact. The second surface of the first metal foil is exposed between the first end and the second end.
Resumen de: US2025219146A1
A power storage element includes a positive electrode, a negative electrode, a separator, and an electrolyte solution. A content Vemc of ethyl methyl carbonate in the electrolyte solution is 26.5 to 45.0 vol %. A content Vec of ethylene carbonate in the electrolyte solution is 9.0 to 33.5 vol %. A content Vdmc of dimethyl carbonate in the electrolyte solution is 29.5 to 41.0 vol %. A content Vdec of diethyl carbonate in the electrolyte solution is 0.0 to 0.2 vol %. A content Vpc of propylene carbonate in the electrolyte solution is 0.0 to 10.5 vol %. A content Vfec of fluoroethylene carbonate in the electrolyte solution is 0.0 vol % or more. A sum of the Vemc, the Vec, the Vdmc, the Vdec, the Vpc, and the Vfec is 97.0 to 100 vol %.
Resumen de: US2025219134A1
The present disclosure provides an electrolyte composition. The disclosure also generally relates to solid state batteries, and electrolyte compositions that may be used in solid state batteries. The disclosure also provides an electrolyte composition comprising lithium, phosphorous, and/or sulfur. The composition may further include a halogen. Without being bound by theory, the disclosure also provides an electrolyte composition comprising a novel x-ray diffraction (XRD) pattern.
Resumen de: US2025219130A1
Disclosed are an all-solid-state battery including a reference electrode and a control method thereof. The all-solid-state battery includes the reference electrode located between an upper stack including one or more unit cells and a lower stack including one or more unit cells to determine potentials of electrodes in the all-solid-state battery so as to control driving of the all-solid-state battery.
Resumen de: US2025219094A1
A negative electrode for a secondary battery includes a silicon-containing particle, and a coating layer that covers at least a portion of the surface of the silicon-containing particle. The silicon-containing particle includes an ion-conducting phase, and silicon phases dispersed in the ion-conducting phase. The coating layer includes a lithium sulfonate compound and a linear saturated fatty acid compound having 10 or more carbon atoms.
Resumen de: US2025219068A1
Freestanding lithium-alloy anodes and fluorinated ether electrolytes for lithium-sulfur batteries. The freestanding lithium-alloy anode may include a dual-phase Li—Mg alloy phase and a Li2Ca alloy phase. The freestanding lithium-alloy anode may include a composite Li—Mg alloy. The composite Li—Mg alloys may include one or more of a lithium-ion conducting material, an electron conducting material, or an ionic filler. The freestanding lithium alloy anodes may include at least one anode protective layer.
Resumen de: US2025219063A1
This invention provides compositions comprising coated particles comprising silicon in which the coating is comprised of carbon and one or more lithium silicates, the coated particles comprising silicon having a carbon content of about 0.10 wt % or more and a lithium content of about 1 wt % or more, relative to the total weight of the coated particle. Processes for preparing these compositions are also provided.
Resumen de: US2025219072A1
A positive electrode for an energy storage device according to an aspect of the present invention includes a positive active material layer containing a positive active material, a particulate conductive agent, and a fibrous conductive agent, the fibrous conductive agent is 60 nm or less in diameter, a pore volume distribution of the positive active material layer has a median pore diameter of 100 nm or more, a Log differential pore volume distribution curve determined from the pore volume distribution has a first peak that appears in a pore diameter range of 10 nm or more and less than 100 nm, and a second peak that appears in a pore diameter range of 100 nm or more and less than 2000 nm, and the ratio of the height of the second peak to the height of the first peak (second peak/first peak) is 1.20 or less.
Resumen de: WO2025139335A1
A positive electrode material, and a preparation method therefor and the use thereof. The positive electrode material has a core-shell structure, wherein a core layer comprises the elements of Li, Ni, M, Q and O, and a shell layer comprises the elements of X and A; the core layer comprises a transition layer having oxygen vacancies, the oxygen vacancies can be detected by XPS, the XPS peak positions thereof being at 529-533 eV, and the transition layer is close to the shell layer; the element M includes at least one of Co, Mn, and Al; the element Q includes at least one of Mo, Nb, W, Ta, and B; the element X includes at least one of Mo and B; and the element A includes at least one of C, S, and N. The shell layer on a surface of the positive electrode material can improve the electronic conductivity, and the transition layer has oxygen vacancy defects, which can effectively decelerate the trend of oxygen release; and by means of the coordination and cooperation of all the layer structures, the positive electrode material has good structural stability and a high capacity.
Resumen de: WO2025139319A1
Disclosed in the present invention is a rapid preparation method for a composite thermal-runaway prevention material. The composite thermal-runaway prevention material comprises the following components, in percentages by mass: 71-95% of an inorganic heat-absorbing material, 0-5% of an inorganic light-guiding material, 0-12% of polyvinyl alcohol, 0-1% of a long-chain alkyl diacid and 5-16% of a UV-curable packaging resin. The preparation method therefor comprises: obtaining a fluffy mixture by using a mixing process, homogenizing same via a secondary homogenization device by means of a homogenizing process, the temperature of the mixture during the homogenization process being 0-80°C, and subjecting the uniform mixture to a forming process and a curing process, so as to obtain a composite thermal-runaway prevention material. A homogenizing process is added in the present invention, thereby improving the uniformity of powder spreading during the process of preparing a large-area and large-size composite thermal-runaway prevention material, and improving the strength of the composite thermal-runaway prevention material. The heat-absorption enthalpy value of the composite thermal-runaway prevention material is high, thereby preventing adjacent batteries from being continuously heated and avoiding fires and explosion; and the surface of the material is coated with a UV-curable packaging resin, thereby achieving stable packaging of the inorganic heat-absorbing material.
Resumen de: WO2025139292A1
The present application relates to the technical field of batteries, and discloses a positive electrode material, a secondary battery, and an electric device. The positive electrode material comprises a core and a coating layer provided on the outer surface of the core; the core comprises a manganese-iron-lithium oxide; and the coating layer comprises crystalline carbon nitride. According to the present application, the manganese-iron-lithium oxide is coated with the crystalline carbon nitride, so that the electrical conductivity and the cycle stability of the positive electrode material can be significantly improved.
Resumen de: WO2025138379A1
Disclosed in the present application are an immersion cooling device and a battery pack. The immersion cooling device comprises: a cooling pipe, which comprises two ends oppositely arranged in a first direction and a body portion located between the two ends, wherein an inlet is formed at one end, and a plurality of outlets arranged at intervals are formed in a side wall of the body portion; and two supporting assemblies, which respectively support the two ends of the cooling pipe, wherein the two supporting assemblies and the cooling pipe are configured to enclose a cooling area together with two battery modules located on two opposite sides of the two supporting assemblies; and the cooling area is in communication with the plurality of outlets.
Resumen de: WO2025138365A1
A composite copper current collector and a preparation method therefor, and a lithium ion battery. The composite copper current collector comprises: a polymer base film; a bonding layer provided on at least one surface of the polymer base film; and a composite copper layer provided on the surface of the side of the bonding layer relatively distant from the polymer base film, wherein the composite copper layer is formed by alternately laminating amorphous copper layers and crystalline copper layers. By constructing a multi-layer structure in which the amorphous copper layers and the crystalline copper layers are alternately arranged, during a battery nail penetration test, the amorphous copper layers are prone to forming cracks that rapidly spread to the periphery, thereby causing extensive fracture and fragmentation of adjacent crystalline copper layers. Therefore, separation of the composite copper layer and a steel nail is achieved, the formation of a closed loop due to conduction between positive and negative current collectors and battery thermal runaway caused thereby are avoided, thereby improving the safety performance of the battery.
Resumen de: WO2025138252A1
The present disclosure relates to the technical field of batteries, and specifically relates to a battery. The battery comprises a positive electrode sheet and an electrolyte. The electrolyte comprises a cyanophosphate compound, which has one or more of the structures represented by formulas (I), (II) and (III), wherein R1, R2, R3, R4, R5, R6, R7, R8 and R9 are each independently selected from an alkyl, an alkenyl, an alkynyl, and an ether group. On the basis of the total weight of the electrolyte, the weight content of the cyanophosphate compound is D wt%. The positive electrode sheet comprises a lithium cobalt oxide material; and as for the crystal structure of the lithium cobalt oxide material, A = △I003/△I101+△I003/△I104, and thus the battery satisfies: 1.2≤A/D≤4.2. The battery of the present disclosure has high cycling stability, good storage performance and high safety under high voltages.
Resumen de: US2025219142A1
An electrolyte solution additive, an electrolyte solution, a secondary battery, and an electrical device are disclosed. In a structural formula of the electrolyte solution additive, at least one nitrogen atom having lone pair electrons is included. The lone pair electrons on the nitrogen atom have a strong electron-donating ability, and easily react with electron-deficient R+ to form −N+−R. This reduces a possibility of reduction of R+ at a negative electrode, reduces damage to an SEI film, and reduces consumption of active lithium at the negative electrode, to improve initial efficiency and cycle performance of a battery.
Resumen de: US2025219128A1
The lithium-ion secondary battery can easily detect remaining capacity by a detection means using a voltage detection method. The lithium ion secondary battery of the present invention is related to Goals 3, 7, 11, and 12 of the SDGs. The lithium ion secondary battery of the present invention includes a solid electrolyte, and a first negative electrode active material which is a spinel type Li4-a-cTi5-bMa+b1O12−δ(M1 is at least one element selected from the group consisting of Li, Na, K, Mg, Ca, Al Zn and transition metal elements, −1≤a≤0.5, 0≤b≤0.5, 0≤c≤0.5, −0.2≤δ≤1) and a specific second negative electrode active material. When the total amount of the first negative electrode active material and the second negative electrode active material contained in the negative electrode is 100% by volume, the proportion of the second negative electrode active material is 5% by volume or more. This is a characteristic feature.
Resumen de: US2025219124A1
An apparatus for winding at least one strip of material is described, the apparatus comprises: a winding core rotatable about a rotation axis, configured to grip said strip and actuatable in rotation to drag the gripped strip and thus form a winding around the rotation axis from a portion of predetermined length of strip; and a feeding unit for feeding the strip of material to the winding core along a respective feed path extending from the feeding unit to the winding core; the apparatus further comprising an auxiliary drag device interposed between the feeding unit and the winding core, along the feed path, and configured to pull the strip of material from the feeding unit and push it towards the winding core, so as to assist the winding core in dragging the strip.
Resumen de: US2025219105A1
A method of manufacturing ribbon-shaped electrodes includes providing a ribbon-shaped metal foil and coating the ribbon-shaped metal foil with an electrode material in a continuous process to apply, via a plurality of application nozzles and simultaneously to a first side and to a second side, an equal number of parallel strips of the electrode material. Each respective parallel strip on the first side overlaps with a respective parallel strip on the second side. On both the first side and the second side, an uncoated strip-shaped region between adjacent parallel strips of the electrode material remains free of the electrode material. The method further includes detecting an offset that exceeds a predefined threshold value between overlapping strips on the first side and the second side and correcting, in response to detecting the offset, a position of at least one of the application nozzles relative to the ribbon-shaped metal foil.
Resumen de: US2025219093A1
A secondary battery includes: a wound electrode group including a pair of electrodes and a separator disposed between the pair of electrodes; a core member disposed in a hollow part of the electrode group; and a non-aqueous electrolyte. At least one of the pair of electrodes includes an active material layer and a resin film supporting the active material layer.
Resumen de: US2025219092A1
A positive electrode active material for a lithium-ion secondary battery includes lithium metal complex oxide particles, and one or more additive particles selected from among aluminum oxide particles, titanium oxide particles, magnesium oxide particles, silicon oxide particles, and zirconium oxide particles. A specific surface area of the positive electrode active material is 0.25 m2/g or more and 4.0 m2/g or less.
Resumen de: US2025219058A1
Disclosed in the present disclosure is a positive electrode active material and a lithium-ion battery, the positive electrode active material comprising lithium iron phosphate coated with carbon layer, and an ID/IG value of the positive electrode active material is 0.75-1.2, wherein a peak intensity at a wave number of 1360 cm−1 is considered as ID and a peak intensity at a wave number of 1580 cm−1 is considered as IG in a Raman spectrum of the positive electrode active material.
Resumen de: US2025219057A1
An ether polymer satisfies 5≤m/n≤1000, n denoting a mass of the ether polymer in units of g, and m denoting a mass of a first substance in units of g. The first substance is obtained by adding the ether polymer to a first solvent at 45° C. to form an ether polymer system, which is allowed to stand at 45° C. for 8 h and then at 25° C. for ≥24 h, and filtered through a 200-mesh filter, leaving a filter-out substance as the first substance.
Resumen de: WO2025141499A1
The present disclosure relates to a system for transferring and stacking electrodes in a battery stacking system. The system includes singulation device having a buffering device that feeds singulated electrodes to in-feed conveyors that transport the singulated electrodes to a transporting device having vacuum-assisted gripping shoes. The transporting device transfers the electrodes from the in-feed conveyors to the picking device equipped with gripping shoes to pick and place the battery materials into a stack on a stacking platform.
Resumen de: WO2025141311A1
The present disclosure provides a means for reducing the irreversible capacity of a lithium-deposition type lithium secondary battery provided with a negative electrode intermediate layer. Provided is a lithium secondary battery comprising a power generation element provided with: a positive electrode; a negative electrode having a negative electrode current collector and in which lithium metal is deposited during charging; a solid electrolyte layer interposed between the positive electrode and the negative electrode and containing a solid electrolyte; and a negative electrode intermediate layer interposed between the negative electrode current collector and the solid electrolyte layer and containing a lithium reactive material and a binder. The basis weight of the negative electrode intermediate layer is greater than 0.1 mg/cm2 and less than 1.0 mg/cm2, and the content of the binder in the negative electrode intermediate layer is greater than 10 mass%. The lithium reactive material contains amorphous carbon, and the DBP absorption amount of the amorphous carbon is 60-240 mL/100 g.
Resumen de: WO2025141296A1
Problem To provide a means capable of improving cycle characteristics in a lithium-precipitation-type lithium secondary battery having a negative electrode intermediate layer containing nickel particles. Solution A lithium secondary battery comprising a power-generating element comprising: a positive electrode having a positive electrode active material layer containing a positive electrode active material; a negative electrode which has a negative electrode current collector and in which lithium metal precipitates on the negative electrode current collector during charging; a solid electrolyte layer which is interposed between the positive electrode and the negative electrode and contains a solid electrolyte; and a negative electrode intermediate layer which is present adjacent to a surface of the solid electrolyte layer on the negative electrode current collector side and contains Ni particles having Ni (OH)2 on the surface thereof.
Resumen de: WO2025141312A1
Problem To provide a means capable of improving cycle durability in a lithium deposition type lithium secondary battery provided with a negative electrode intermediate layer. Solution This lithium secondary battery comprises a power generation element having: a positive electrode which has a positive electrode active material layer containing a positive electrode active material; a negative electrode which has a negative electrode current collector and in which lithium metal is deposited during charging; a solid electrolyte layer which is interposed between the positive electrode and the negative electrode and contains a solid electrolyte; and a negative electrode intermediate layer which is interposed between the negative electrode current collector and the solid electrolyte layer and contains a lithium reactive material and a binder. In the lithium secondary battery, the lithium reactive material contains a carbon material, the DBP absorption amount of the carbon material is more than 200 mL/100 g but less than 280 mL/100 g, and the content of the binder in the negative electrode intermediate layer is 14-34 mass%.
Resumen de: WO2025140342A1
A negative electrode hard carbon material, a preparation method therefor, a negative electrode composition, and a sodium ion secondary battery and a use. The negative electrode hard carbon material satisfies: the content of phosphorus being within the range of 0.001 wt%≤P≤0.300 wt%, on the basis of the total weight of the negative electrode hard carbon material; and a disorder parameter fa being within the range of 0.25≤fa≤0.75. Therefore, the negative electrode hard carbon material exhibits good comprehensive performance including capacity performance, initial coulombic efficiency, and cycle performance.
Resumen de: WO2025140360A1
Disclosed in the present utility model is a coolant flow distribution liquid cooling plate, comprising: a liquid cooling plate, wherein the liquid cooling plate is provided with at least two liquid cooling regions, and the at least two liquid cooling areas have different heat exchange area; a flow distribution pipe fitting which is connected between a coolant inlet pipe and the liquid cooling plate and is used for carrying out flow distribution on the coolant on the basis of the ratio of the heat exchange area of the at least two liquid cooling regions; and a flow convergence pipe fitting which is connected between a coolant outlet pipe and the liquid cooling plate and is used for converging the coolant in the at least two liquid cooling regions and discharging same to the coolant outlet pipe. For a battery pack with imbalanced matching of multiple liquid cooling areas on a liquid cooling plate, the liquid cooling plate adopts an inlet flow distribution design, the coolant flow volume is distributed on the basis of the matching ratio of the multiple liquid cooling areas, making the matching ratio of the multiple liquid cooling areas consistent with the coolant flow distribution ratio, achieving the reasonability of coolant flow distribution, and meeting the thermal management performance requirements of a battery pack.
Resumen de: WO2025140458A1
Provided are a battery box, a battery pack and an energy storage power station. The battery box comprises a box body, an explosion-proof film and a quenching box, wherein the box body is provided with a cavity for placing a battery cell, and at least one side of the box body is provided with an opening; the explosion-proof film is arranged on the box body and closes the opening; the quenching box is arranged on the box body, and is provided with a plurality of quenching channels and a cooling cavity; each quenching channel is provided with a first port and a second port, the first port and the second port being respectively located on two side faces of the quenching box, and the first port being opposite the opening; the area to volume ratio of each quenching channel is greater than 0.5; and the cooling cavity is configured to be connected to a cooling liquid circulation system, and wraps the quenching channels, such that a cooling liquid exchanges heat with the quenching channels.
Resumen de: WO2025142268A1
This cylindrical battery is characterized by comprising: a wound electrode body (14); a cylindrical outer can (16) that accommodates the electrode body (14); a sealing body (17) that closes an opening of the outer can (16); and an insulating member (30) that is disposed on the outer side in the axial direction of the electrode body (14), the insulating member (30) having at least one or more protrusions (32).
Resumen de: WO2025141750A1
The present disclosure addresses the problem of providing a means that enables the discharge rate characteristics to be improved in a lithium precipitation-type lithium secondary battery that includes two negative electrode intermediate layers. In the present invention, the foregoing problem can be solved by: causing a predetermined carbon material to be contained in each of two negative electrode intermediate layers; and controlling the value of the peel strength at the interface between the respective layers of a solid electrolyte layer, the two negative electrode intermediate layers, and a negative electrode current collector to be a value within a predetermined range.
Resumen de: WO2025141914A1
Provided is a positive electrode active material for all-solid-state lithium ion batteries that includes positive electrode active material particles and a coating layer provided to the positive electrode active material particle surfaces, wherein the positive electrode active material particles are represented by the composition indicated in formula (1): LiaNibCocMndMeOf (in formula (1), 1.0 ≤ a ≤ 1.10, 0.58 ≤ b ≤ 0.62, b+c+d+e=1, 0.0035 ≤ e/(b+c+d) ≤ 0.055, 1.8 ≤ f ≤ 2.2, and M is at least one selected from Zr, Ta, and W), the coating layer contains Li, Nb, and Ti, and in ICP emission spectrometry, the Ti content contained in the positive electrode active material for all-solid-state lithium ion batteries is 10 to 30 mass ppm and the mass ratio Ti/Nb of Ti and Nb in the positive electrode active material for all-solid-state lithium ion batteries is 0.0020 to 0.0040.
Resumen de: WO2025141848A1
The present invention provides a lithium secondary battery that has excellent cycle characteristics. The present invention relates to a lithium secondary battery that includes: a negative electrode active material that contains Si; and an electrolyte solution. The average particle diameter of the negative electrode active material is 5.0-30 μm. The electrolyte solution includes LiFSI, LiPF6, and LiPO2F2 as lithium salts. When the mole fraction of LiFSI is x, the mole fraction of LiPF6 is y, the mole fraction of LiPO2F2 is z, and x+y+z=1, 0.05≤x≤0.95, 0.05≤y≤0.90, and 0.005≤z≤0.35. The lithium ion concentration of the electrolyte solution is 0.7-3.0 M.
Resumen de: WO2025140727A1
The present application relates to the technical field of batteries, and discloses a battery cell, a battery module and an electric device. The battery cell comprises an electrode assembly, an insulating film, and at least one side plate; at least part of the insulating film covers the electrode assembly; at least one side wall of the insulating film is provided with a plurality of first through holes; the side plate is sandwiched between the side wall of the insulating film provided with the first through holes and the electrode assembly and/or the side plate is attached to the side wall of the insulating film provided with the first through holes; the side plate is provided with a plurality of second through holes; and at least one of the second through holes is staggered from the first through holes. According to the battery cell, the electrolyte can completely infiltrate the internal electrode assembly, thereby ensuring the insulation performance between the electrode assembly and the casing while improving the infiltration effect, prolonging the service life of the battery cell and improving the use safety thereof.
Resumen de: WO2025142520A1
Provided is a cooling heat exchanger which has a novel structure, and is capable of tolerating a difference in deformation amount due to thermal expansion between a metallic cooling surface constituent member superposed on a cooling object and a synthetic resinous flow path member superposed on and fixed to the cooling surface constituent member. A cooling heat exchanger 10 has a lamination structure in which a metallic cooling surface constituent member 12 superposed on a cooling object B and a synthetic resinous flow path member 14 are superposed on each other, and a cooling flow path 58 through which a cooling heat medium flows is formed between the superposed surfaces of the cooling surface constituent member 12 and the flow path member 14. The cooling surface constituent member 12 and the flow path member 14 are bonded to each other by means of an adhesive layer 54 having elasticity in the outer peripheral regions. The cooling surface constituent member 12 and the flow path member 14 are fixed to each other by direct bonding without an adhesive in a direct bonding portion 44 provided in a central region of the flow path member 14.
Resumen de: WO2025142519A1
Provided is a cooling heat exchanger having a novel structure capable of achieving stable cooling performance over a wider area of a cooling surface in contact with an object to be cooled. A cooling heat exchanger 10 cools an object B to be cooled superimposed on a surface thereof by allowing a cooling heat medium to flow through an internally formed cooling flow path 38. The cooling flow path 38 comprises a supply flow path 40 to which the heat medium is supplied from the upstream side, and a discharge flow path 42 from which the heat medium is discharged from the downstream side. In the cooling flow path 38, a plurality of branch flow paths 44a to 44h connecting the supply flow path 40 and the discharge flow path 42 are provided in parallel, branching from a plurality of points in the length direction of the supply flow path 40. The plurality of branch flow paths 44a to 44h are partly provided with resistance adjustment parts 46a to 46h for adjusting the flow resistance of the heat medium, the flow resistance of the heat medium in the resistance adjustment parts 46 becoming smaller in the branch flow paths 44 that branch off further downstream of the supply flow path 40.
Resumen de: WO2025142544A1
Provided are: a regenerated positive electrode active material obtained by replenishing lithium in a lithium-deficient positive electrode active material (a), said regenerated positive electrode active material having an oxygen 1s core spectrum, as measured using XPS, in which the ratio of the peak intensity in the region from not less than 528 eV but less than 530 eV to the peak intensity in the region from not less than 530 eV but less than 535 eV is 0.0005 or less; a lithium ion secondary battery containing the regenerated positive electrode active material; and a method of producing a regenerated positive electrode active material, said method including mixing the lithium-deficient positive electrode active material (a), a lithium compound (b) and a reducing agent (c) at proportions such that 0.13 ≤ (b)/(c) ≤ 2.80 (molar ratio) to obtain the regenerated positive electrode active material.
Resumen de: WO2025142545A1
A method of producing a regenerated positive electrode active material, said method including mixing a lithium-deficient positive electrode active material (a), a lithium compound (b), and a reducing agent (c) to replenish lithium in the lithium-deficient positive electrode active material (a) and obtain a regenerated positive electrode active material, wherein the redox potential of the reducing agent (c) is 1.80-3.00 eV vs Li+/Li.
Resumen de: WO2025142756A1
A battery (10) includes a wound electrode body (14), a nonaqueous electrolyte, and a bottomed cylindrical outer can. A discharge capacity per 1.0 g of a negative-electrode mixture layer (52) is 0.50 Ah or more. A negative electrode (12) includes a both-side mixture disposition part (60) in which the negative-electrode mixture layer (52) is disposed on both a winding inner surface and a winding outer surface of a negative-electrode current collector (51). The negative electrode (12) has a positive-electrode facing part (65) in which both a winding inner side and a winding outer side of the both-side mixture disposition part (60) face a positive electrode in a radial direction. When a total length in a negative-electrode longitudinal direction in the positive-electrode facing part (65) is assumed to be x, an average aw1 of the length a negative-electrode width direction of the negative-electrode mixture layer (52) from a winding-start end to x/4 in the positive-electrode facing part (65) is set to 1.0025 times or more and less than 1.0100 times of an average aw2 of a length in the negative-electrode width direction of the negative-electrode mixture layer (52) from a winding-end end of the positive-electrode facing part (65) to x/4.
Resumen de: WO2025142758A1
A positive electrode (11) has one or more positive electrode core exposed parts (35) that are adjacent to a positive electrode mixture layer (32) in the positive electrode width direction and in which a positive electrode core (30) is exposed. One positive electrode tab (20) is bonded to each positive electrode core exposed part (35). The center (20b) of an innermost peripheral positive electrode tab (20a) in the positive electrode longitudinal direction is located one or more turns outside a winding inner end (11a) of the positive electrode (11) with respect to the positive electrode longitudinal direction. According to the cylindrical secondary battery of the present disclosure, it is easy to increase the capacitance and also easy to reduce the electrical resistance.
Resumen de: WO2025142806A1
A positive electrode (11) has one or more positive electrode core exposed parts (35) which are adjacent to a positive electrode mixture layer (32) in the positive electrode width direction, and in which a positive electrode core (30) is exposed. Positive electrode tabs (20) are bonded one by one to the positive electrode core exposed parts (35). In the positive electrode core exposed parts (35), edges (37) adjacent to the positive electrode mixture layer (32) in the positive electrode width direction include a longitudinally extended edge (37a) extending substantially parallel to the positive electrode longitudinal direction. With regard to at least one of the positive electrode core exposed parts (35), when the elongation rate in the positive electrode longitudinal direction of the longitudinally extended edge (37a) after 100 charge-discharge cycles from a reference time is x%, the distance in the positive electrode width direction between the positive electrode tab (20) and the longitudinally extended edge (37a) is a mm, and the maximum length of the positive electrode core exposed part (35) in the positive electrode width direction is b mm, x ≥ 1% and a/b ≥ 2-3/(2x) hold.
Resumen de: WO2025142280A1
Disclosed is a method for producing a material for a solid electrolyte, the method including: a step for preparing a mixed starting material, wherein the mixed starting material has an Li source, a B source, an M source, and an O source, and M is at least one element that is selected from the group consisting of P, As, Si, Ge, Sb, Ti, Sn, Al, and Zr; a step for heating the mixed starting material to 930°C or higher so as to obtain a melt; and a step for cooling the melt so as to obtain an amorphous material that is represented by general formula LixByMzO7, where 2 ≤ x ≤ 3, y > 0, z ≥ 0.06, and 3 ≤ y + z ≤ 4.
Resumen de: US2025214845A1
The invention relates to a method for obtaining graphite, and optionally metals of value, which are preferably selected from at least one of the metals of the first and/or the third main group and/or at least one of the metals of the 7th to 11th secondary group, from lithium ion batteries, wherein the batteries (2, 10) having a residual charge of max. 30% are crushed in a crushing unit (73) with the addition of water (12), such that a mixture of crushed batteries and water is obtained, wherein the mixture comprising the crushed batteries and the water is divided into a first aqueous graphite-enriched fraction (15), optionally also containing metal oxides, and a second non-aqueous graphite-depleted fraction (16), and wherein the water is then removed from the first aqueous graphite-enriched fraction (15) such that a dried graphite-containing fraction (18), optionally also containing metal oxides, is obtained. The invention also relates to a corresponding system (71).
Resumen de: US2025214784A1
A method and an apparatus for the production of modules or precursors of modules, in particular of fuel or battery cells containing layer material. The method includes conveying individual anode layers to a first transfer location for transfer to a first layer turner; conveying individual cathode layers to a second transfer location for transfer to a second layer turner; turning picked-up anode or cathode layers by a respective angle of rotation to a respective first or second delivery location; reciprocating the anode or cathode layers by a respective angle of rotation to a respective first or second delivery location; and transferring the anode or cathode layers to respective first or second layer turners at the respective first and second delivery locations.
Resumen de: US2025214734A1
A debris collection component, a debris collection assembly, a battery case packaging structure and a battery case packaging method are described. The debris collection component is configured to be arranged between two adjacent workpieces stacked in a direction of gravity. The debris collection component comprises a collection tray and a retaining member. The collection tray is configured to receive debris falling from the workpiece above. The retaining member is arranged on the collection tray and configured to retain the debris. The debris collection component can collect the debris falling from the workpiece above so as to reduce the amount of the debris attached to the workpiece, and reduce the impact of the debris on the subsequent assembly process of the workpiece and the safety performance during the use of the workpiece.
Resumen de: US2025214470A1
A power bank is provided for charging a load handing device, the power bank including: an auxiliary rechargeable power source; and at least one power transfer device electrically coupled to the auxiliary rechargeable power source; wherein the at least one power transfer device is configured to electrically couple to a load handling device so as to transfer electrical power from the auxiliary rechargeable power source to the load handing device.Buchanan
Resumen de: US2025215524A1
Provided is a method for recovering metals, which can produce a lithium hydroxide solution from a metal-containing solution and appropriately process the impurities separated at that time. The method for recovering metals from battery powder of lithium ion battery waste includes: an acid leaching step of leaching the metals in the battery powder with an acid to obtain a metal-containing solution containing lithium ions and other metal ions including manganese ions and/or aluminum ions; a metal separation step of separating the other metal ions from the metal-containing solution, the metal separation step comprising extraction of manganese ions and/or aluminum ions from the metal-containing solution into a solvent and, after the extraction, stripping of manganese ions and/or aluminum ions from the solvent into a stripping solution; and, after the metal separation step, an electrodialysis step of subjecting the metal-containing solution containing lithium ions and fluoride ions to electrodialysis using a bipolar membrane to obtain a lithium hydroxide solution and an acidic solution containing fluoride ions, wherein the acidic solution obtained in the electrodialysis step is used as at least part of the stripping solution in the metal separation step.
Resumen de: US2025215522A1
A method and a system for recycling a metal from a lithium secondary battery are provided. In the method for recycling a metal from a lithium secondary battery, a cathode active material mixture containing lithium is prepared. A lithium precursor is produced by reducing the cathode active material mixture. A lithium precursor aqueous solution is formed by dissolving the lithium precursor in water. The lithium precursor aqueous solution is passed through an aluminum adsorption resin column to adsorb aluminum to the aluminum adsorption resin column. A first treatment liquid including distilled water is injected into the aluminum adsorption resin column at a flow rate of 100 L/hr to 1,200 L/hr to obtain a regenerated aluminum adsorption resin column from which aluminum is desorbed.
Resumen de: US2025219441A1
An uninterruptible power supply apparatus includes an AC/DC converter that converts AC power supplied from a commercial AC power supply into DC power and supplies the DC power to a DC line, a DC/AC converter that converts the DC power received from the DC line into AC power and supplies the AC power to a load, a DC/DC converter that provides and receives DC power between the DC line and a battery, and a bidirectional converter that, in high-speed charging of the battery, operates in cooperation with the AC/DC converter, converts the AC power supplied from the commercial AC power supply into DC power, and supplies the DC power to the DC line. This can prevent a shortage of DC power during a high-speed charging operation and enables high-speed charging of the battery while supplying rated power to the load.
Resumen de: US2025219273A1
An electrolyte injection apparatus includes: a carrier; a plurality of battery containers aligned and mounted on the carrier; a vacuum chamber in which the carrier is movably accommodated; and an injection nozzle fixed while penetrating an upper surface of the vacuum chamber and configured to discharge an electrolyte and to supply the electrolyte to the battery containers.
Resumen de: WO2025139607A1
The present disclosure relates to the field of batteries and provides a high-compaction positive electrode material precursor and a preparation method therefor, a positive electrode material, a battery, and a powered device. The high-compaction positive electrode material precursor comprises first-type particles having a particle size less than 5 μm and second-type particles having a particle size greater than or equal to 5 μm, wherein the ratio of the proportion of the number of the first-type particles to the proportion of the number of the second-type particles is (10-40):1. The preparation method for the high-compaction positive electrode material precursor comprises: mixing two or more types of precursor particles to obtain the high-compaction positive electrode material precursor. According to the high-compaction positive electrode material precursor provided by the present disclosure, within appropriate number proportion ranges of particles having different particle sizes in the precursor, the effect of filling gaps between large particles with more small particles is ideal, and when the particle size range of the small particles is appropriate, an overall high compaction density is exhibited.
Resumen de: WO2025139515A1
A battery cell (100), and a battery pack. The battery cell (100) comprises: a casing (110), a bare cell core (130), and an insulating patch (120), wherein the casing (110) comprises a top cover (111), the top cover (111) being provided with a portion to be avoided, said portion comprising at least one of a post terminal (101), an explosion-proof valve (103) and a functional region (109); the bare cell core (130) is arranged in the casing (110), and the insulating patch (120) is attached to the side of the top cover (111) away from the bare cell core (130); and the insulating patch (120) is provided with at least one clearance hole (125), the clearance hole (125) being arranged corresponding to the post terminal (101), the explosion-proof valve (103) and the functional region (109), and the clearance hole (125) being used for exposing said portion. The area of the region enclosed by an outer edge of the insulating patch (120) is defined as S1 mm 2, the area of the clearance hole (125) is defined as S2 mm 2, and the thickness of the insulating patch (120) is defined as Hmm, 0.05≤(1-S2/S1)*H≤0.5, wherein when there is one clearance hole (125), S2 represents the area of the single clearance hole (125), and when there are two or more clearance holes (125), S2 represents the total area of the clearance holes (125). In this way, the insulation performance of the insulating patch (120) can be improved.
Resumen de: WO2025138720A1
A secondary battery leak rate measurement device, comprising a plurality of pressure containers (1), a vacuumizing device (2a), a leak rate measurement instrument (3a), and leak rate calibrating members (4a), wherein the plurality of pressure containers (1) are connected in parallel, each pressure container (1) is provided with a cavity (11), the cavity (11) is configured to accommodate a secondary battery, the vacuumizing device (2a) is in communication with a plurality of cavities (11), the leak rate measurement instrument (3a) is in communication with the plurality of cavities (11), and the leak rate calibrating members (4a) are in communication with the cavities (11). The secondary battery leak rate measurement device achieves accurate secondary battery leak rate measurement, and effectively prevents a secondary battery of which the leak rate is compliant from being misjudged to have a non-compliant leak rate due to inaccurate secondary battery leak rate value measurement.
Resumen de: WO2025138172A1
A secondary battery and an electronic apparatus. The secondary battery comprises a casing, an electrode assembly and an electrolyte accommodated in the casing, a metal plate connected to the electrode assembly, and an adhesive member. The electrode assembly comprises a first electrode sheet and a second electrode sheet which are stacked, the first electrode sheet comprises a first electrode sheet layer, and the second electrode sheet comprises a second electrode sheet layer arranged adjacent to the first electrode sheet layer. The electrode assembly comprises a first end and a second end which are opposite one another. The adhesive member is adhered to the electrode assembly and the casing. The adhesive member comprises a first edge located on one side of the first end and a second edge located on one side of the second end. The distance between the first end and the first edge is L1 mm, the distance between the second end and the second edge is L2 mm, and L1>L2. The electrode assembly comprises a first area and a second area which are sequentially connected in a first direction, the adhesive member is disposed in the second area, and the distance between the first electrode sheet layer and the second electrode sheet layer located in the first area is greater than the distance between the first electrode sheet layer and the second electrode sheet layer located in the second area.
Resumen de: WO2025138123A1
The present invention belongs to the technical field of lithium-ion battery processing, and, in particular, relates to a formation method for a lithium-ion battery. According to the present invention, a formation process of charging three times, discharging one time, and then performing fourth charging is used, and a third charging current > a first charging current > a second charging current; a combination of the two can increase the delithiation efficiency for a lithium-supplementing material in a formation stage, and oxygen in a lithium-supplementing agent is released in the formation stage. Gas production during deoxidation is carried out as much as possible in the formation stage; thus, the problems of later stage high-temperature cycling and gas production during high-temperature storage of a battery are solved, and the high-temperature cycling performance of the battery is improved. Furthermore, according to the present invention, the delithiation efficiency is controlled by means of regulating and controlling the pressure, current, temperature, and SOC during charging and discharging during formation, so that the lithium-supplementing agent on a positive electrode side undergoes complete delithiation on a delithiation platform. In general, the formation processing steps in the present invention affect one another and are associated with one another, and jointly solve the problem of gas production during delithiation of the lithium-supplementing material. Moreover, th
Resumen de: US2025219270A1
An all-solid-state rechargeable battery capable of preventing generation of short circuits may be provided by securely disposing the positive electrode current collector in the desired position as much as possible or by detecting an arrangement issue of the positive electrode current collector in an early stage of manufacturing process. an all-solid-state rechargeable battery according to an embodiment includes a positive electrode layer, a negative electrode layer, a solid electrolyte layer disposed therebetween, and an insulating layer configured to suppress short-circuiting caused by contact between the positive electrode layer and the negative electrode layer, where the solid electrolyte layer is stacked on both surfaces of the positive electrode layer, respectively, the negative electrode layer is stacked on a surface of the respective solid electrolyte layer on an opposite side to the positive electrode layer, respectively, and the insulating layer is disposed on a side cross-section of the positive electrode layer to cover the positive electrode layer, where the positive electrode layer comprises a thin positive electrode current collector and a positive active material layer stacked on both surfaces of the positive electrode current collector, respectively, and where the insulating layer enables a position of an outer edge of the positive electrode current collector covered by the insulating layer to be optically identifiable through the insulating layer.
Resumen de: US2025219271A1
An electrode assembly, a battery cell, a battery, and an electrical device are described. The battery cell includes a negative electrode plate and a positive electrode plate. The negative electrode plate includes a porous current collector and a first tab connected to at least one end of the porous current collector. The positive electrode plate includes a body portion and a second tab connected to at least one end of the body portion. The body portion and the porous current collector are stacked along a thickness direction of the porous current collector. Along a first direction, neither end of the porous current collector extends beyond the body portion. The first direction is perpendicular to the thickness direction of the porous current collector.
Resumen de: US2025219269A1
A main object of the present disclosure is to provide a method for disposing of a battery, with which the battery can be deactivated well. The present disclosure achieves the object by providing a method for disposing of a battery, the method including: a soaking step of soaking a battery including an Al terminal in a treatment liquid to decrease a voltage of the battery by causing outer short circuit through the treatment liquid, wherein the treatment liquid contains water, a supporting salt, and an additive that prevents the Al terminal from eluting; and a concentration of the additive in the treatment liquid is a minimum concentration CMIN, that is capable of preventing the Al terminal from eluting, or more.
Resumen de: US2025219272A1
An electrode assembly in which a first electrode and a second electrode having a sheet shape and a separation film interposed therebetween are wound based on an axis to define a core and an outer circumference is provided. The first electrode and the second electrode respectively includes an uncoated portion not coated with an active material layer on a longer edge end; and a coated portion having an active material layer coated on a region excluding the uncoated portion. The first electrode includes an insulation layer that covers at least a portion of the uncoated portion and at least a portion of the coated portion along a winding direction. The uncoated portion may be bent in a radial direction of the electrode assembly, and the bending point may be spaced apart from the axial end of the insulation layer.
Resumen de: US2025219230A1
An electrical device may include: a case body defining a housing space; a battery receptacle disposed on the case body, wherein a battery pack used as a power supply for a power tool is detachably attached to the battery receptacle; an external terminal disposed on the case body and configured to be electrically connected to the battery pack via the battery receptacle; a lid configured to be movable relative to the case body between an open position where the lid opens the housing space and a closed position where the lid closes the housing space; and a coupling mechanism configured to be switchable between a coupling state in which the coupling mechanism couples the case body and the lid to each other and a decoupled state in which the coupling mechanism decouples the case body and the lid from each other.
Resumen de: US2025219226A1
An electrical device may include a case body, a battery receptacle configured to have a battery pack attached thereto, an external terminal configured to be electrically connected to the battery pack via the battery receptacle, a left handle disposed on a left surface of the case body and comprising a left grip configured to be grasped by a user, and a right handle disposed on a right surface of the case body and comprising a right grip configured to be grasped by the user. The left handle may be configured to be movable relative to the case body between a left lower position and a left upper position. The right handle may be configured to be movable relative to the case body between a right lower position and a right upper position.
Resumen de: US2025219246A1
A hydrogel composition for reinforcing a cellulose paper battery separator comprises a monomer, a cross-linking reagent, an initiator, and a metal salt. A hydrogel-reinforced cellulose paper battery separator comprises a cellulose paper, and a hydrogel integrated within the cellulose paper. A paper battery comprises the hydrogel reinforced cellulose paper batter separator. A method for fabricating the hydrogel reinforced cellulose paper batter separator.
Resumen de: US2025219236A1
The present application discloses an explosion-proof structure and a battery. The explosion-proof structure includes a cover plate, and an explosion-proof groove is provided on the cover plate. The explosion-proof groove includes a first sub-groove and a second sub-groove, a projection of the first sub-groove and a projection of the second sub-groove on a side of the cover plate encloses a closed ring, and a thickness of the cover plate at the position where the first sub-groove is located is less than a thickness of the cover plate at the position where the second sub-groove is located. The present application improves the reliability of the cover plate and ensures the explosion-proof effect.
Resumen de: US2025219238A1
A battery explosion-proof structure, a battery, and a battery pack are provided. The battery explosion-proof structure includes a cover plate provided with a first score and a second score. A thickness of the cover plate at the first score is less than a thickness of the cover plate at the second score. The first score includes a first segment and a second segment connected together. The first segment includes a first end and a second end. The second segment includes a third end and a fourth end. A distance between the first end and the third end is greater than a distance between the second end and the fourth end.
Resumen de: WO2025139537A1
A battery pack (100) and a vehicle. The battery pack comprises: a frame (10), a liquid-cooling plate (6), a bottom guard plate (15), a top cover (16), a battery module (2) and an electrical module (3), wherein the frame (10) is used for enclosing an accommodating cavity (V1); the frame (10) comprises a front side wall (11) and a rear side wall (12), the rear side wall (12) being provided with a side access opening (101); the liquid-cooling plate (6) covers the bottom of the frame (10); the bottom guard plate (15) is detachably connected to a lower portion of the liquid-cooling plate (6), so as to open and close a bottom access opening (61) on the liquid-cooling plate (6); the top cover (16) covers the top of the frame (10); the battery module (2) is located in the accommodating cavity (V1); the electrical module (3) is at least partially mounted in the accommodating cavity (V1); and the electrical module (3) comprises an electrical connection structure (31), a first electrical part (32) and a second electrical part (33), the first electrical part (32) being located on the rear side of the battery module (2) and directly facing the side access opening (101), the second electrical part (33) being located on the front side of the battery module (2) and directly facing the bottom access opening (61), and the electrical connection structure (31) being configured to be electrically connected to the first electrical part (32), the second electrical part (33) and the battery module (
Resumen de: WO2025139646A1
A polyanion-based sodium battery positive electrode material, a preparation method therefor, and an application thereof, relating to the technical field of sodium-ion batteries. The polyanion-based sodium battery positive electrode material comprises a polyanionic compound and a carbon coating layer located on the surface of the polyanionic compound, the chemical formula of the polyanionic compound being Na 4Fe aM b(PO 4) 2P 2O 7, wherein 1.4≤a<3, 0.005
Resumen de: WO2025139649A1
A positive electrode material, and a preparation method therefor and the use thereof. The positive electrode material has a core-shell structure, wherein a core part comprises a carbon-coated Cu2+-doped iron-based phosphate sodium-ion material, and a shell layer is CuO. The iron-based phosphate sodium-ion material is selected from ferric sodium pyrophosphate, ferric sodium phosphate or ferric sodium phosphate pyrophosphate. The preparation method for the positive electrode material comprises: mixing the carbon-coated iron-based phosphate sodium-ion material, a copper source and a first solvent, and then subjecting the mixture to first drying and first calcination.
Resumen de: WO2025138121A1
A negative electrode active material, and a preparation method therefor and a use thereof. The negative electrode active material comprises a graphite material, and the graphite material comprises first graphite and second graphite. Two types of graphite having a certain pressure-relief rebound rate are selected, and are combined with a Dn10 range controlled and a distribution width limited. A negative electrode sheet can have high particle packing density and compaction level, so that good electrical contact between negative electrode active materials and sufficient infiltration of an electrolyte can both be ensured, thereby prolonging high-temperature cycle life while considering charging capability and energy density.
Resumen de: WO2025138111A1
Provided are a lithium iron phosphate positive electrode material and a preparation method therefor, and a lithium-ion battery. The preparation method comprises the following steps: (1) preparing an iron hydroxymethyl acid salt two-dimensional precursor; (2) mixing the iron hydroxymethyl acid salt two-dimensional precursor with a nitrogen-containing carbon source for reaction to obtain a two-dimensional precursor material; and (3) mixing the two-dimensional precursor material, a lithium source, and a phosphorus source and sintering the mixture to obtain the lithium iron phosphate positive electrode material. The lithium iron phosphate positive electrode material is prepared by a method that is simple in process and simple to operate. The positive electrode material has a large electrode/electrolyte contact interface, so that complete infiltration of the electrolyte and the positive electrode material is facilitated; in addition, the microstructure of the positive electrode material inherits the two-dimensional sheet-like appearance of the iron hydroxymethyl acid salt precursor, and a large specific surface area of the positive electrode material provides sufficient active sites for the storage of lithium ions and electrons, thereby promoting rapid diffusion and transmission of lithium ions, and facilitating the improvement of the electrochemical performance of the lithium-ion battery.
Resumen de: WO2025138143A1
A secondary battery and an electronic device, belonging to the technical field of batteries. The secondary battery comprises a housing and electrode assemblies; the electrode assemblies are accommodated in the housing, and the electrode assemblies are arranged curving towards a first direction X; the extent of curvature recovery of the outer curved side of the curved electrode assemblies is greater than the extent of curvature recovery of the inner curved side of the curved electrode assemblies, and a first electrode assembly having an anode current collector with a relatively larger tensile load has better curvature recovery resistance than a second electrode assembly having an anode current collector with a relatively smaller tensile load. Disposing the first electrode assembly having the anode current collector with a relatively larger tensile load on the outer curved side and disposing the second electrode assembly having the anode current collector with a relatively smaller tensile load on the inner curved side effectively reduces the curvature recovery difference between anode sheets in the curved electrode assemblies, enabling the anode sheets to fit together better, and ameliorating the problem of the occurrence of dark spots caused by the fact that curved electrode assemblies are prone to curvature recovery.
Resumen de: US2025219088A1
An all-solid-state battery electrode of the present invention includes: a molded body formed from an electrode mixture that contains at least an electrode active material, a solid electrolyte, and conductive assistant particles. The conductive assistant particles have an aspect ratio A determined by observing a cross section of the molded body of the electrode mixture of 1.5 or more, and an inter-particle distance L (μm) of the conductive assistant particles in a three-dimensional space and a length b (μm) of a long axis of the conductive assistant particles, which are determined by observing the cross section, satisfy the following relationship: L≤b. The all-solid-state battery of the present invention includes the all-solid-state battery electrode of the present invention as a positive electrode and/or a negative electrode.
Resumen de: US2025219055A1
Provided is a negative electrode for a secondary battery including: a current collector, and a negative electrode active material layer formed on the current collector and containing a first negative electrode active material having a large particle size and a second negative electrode active material having a small particle size, wherein the second negative electrode active material is contained in an amount of 10% by weight or less based on the total weight of the negative electrode active material, and the following Relational Equation 1 is satisfied: Relational Equation 10.4
Resumen de: US2025219087A1
A positive electrode composition containing a conductive material, an active material, a binding material, a dispersing agent for a conductive material, and a liquid medium, wherein the conductive material includes carbon black and carbon nanotubes, wherein the dispersing agent for a conductive material includes two or more dispersing agents having different SP values, and wherein the carbon black has a BET specific surface area of 100 to 500 m2/g.
Resumen de: US2025219054A1
A cathode active material for a lithium secondary battery according to the embodiments of the present disclosure includes: first cathode active material particles which includes a lithium metal oxide containing nickel, cobalt and manganese; and second cathode active material particles which includes a lithium phosphate compound, wherein a molar ratio of the cobalt based on a total number of moles of the nickel, cobalt and manganese in the first cathode active material particles may be more than 0 and less than 0.15, and a weight ratio of the first cathode active material particles and the second cathode active material particles may be 20:80 to 80:20. Accordingly, a lithium secondary battery having improved stability, capacity characteristics, and lifespan characteristics while reducing production costs may be implemented.
Resumen de: US2025219050A1
To provide graphene oxide that has high dispersibility and is easily reduced. To provide graphene with high electron conductivity. To provide a storage battery electrode including an active material layer with high electric conductivity and a manufacturing method thereof. To provide a storage battery with increased discharge capacity. A method for manufacturing a storage battery electrode that is to be provided includes a step of dispersing graphene oxide into a solution containing alcohol or acid, a step of heating the graphene oxide dispersed into the solution, and a step or reducing the graphene oxide.
Resumen de: US2025219266A1
A secondary battery includes a packaging bag, an electrode assembly, a tab, a tab adhesive, and an adhesive member. The electrode assembly includes a first surface, and the tab protrudes from the electrode assembly through the first surface. The tab extends in direction Y, a thickness direction of the tab is direction Z, and a direction perpendicular to the directions Y and Z is direction X. A thickness of the tab is H1 μm, where 80≤H1≤100. The tab is covered with the tab adhesive, the tab adhesive is adhered to the packaging bag, and a DSC curve of the tab adhesive has an endothermic peak at a temperature T° C., where 135≤T≤165. The tab includes a positive electrode tab and a negative electrode tab, and the adhesive member is disposed between the positive and negative electrode tabs in the direction X.
Resumen de: US2025219267A1
A cylindrical battery cell includes an electrode assembly having a first electrode tab with a first polarity and a second electrode tab with a second polarity; a battery can having an open portion formed at a lower end and a closed portion formed at an upper end, configured to accommodate the electrode assembly through the open portion, and electrically connected to the second electrode tab; a cell terminal electrically connected to the first electrode tab, exposed to an outside of the battery can through the closed portion of the battery can, and electrically insulated from the battery can; a first current collecting plate having a first surface and a second surface opposite to the first surface, wherein the first surface is coupled to the first electrode tab and the second surface is coupled to the cell terminal; and a terminal fastening member configured to mechanically fasten the cell terminal and the first current collecting plate.
Resumen de: US2025219268A1
A main object of the present disclosure is to provide a method for disposing of a battery, with which the battery can be deactivated well. The present disclosure achieves the object by providing a method for disposing of a battery, the method including: a soaking step of soaking a battery including an Al terminal in a treatment liquid to decrease a voltage of the battery by causing outer short circuit through the treatment liquid, wherein the treatment liquid contains water and a supporting salt; and the Al terminal includes, on at least a part of its surface, a protective layer that prevents the Al terminal from eluting to the treatment liquid.
Resumen de: US2025219265A1
An electrode terminal includes a first portion and a second portion arranged in a first direction. The first and second portions are connected to the electrode assembly and have, respectively, a first connection region and a second connection region. The sealing member is connected to the electrode terminal and disposed on one side of the electrode assembly in a second direction perpendicular to the first direction. In an extension direction of the electrode terminal, the first connection region has a first edge away from the sealing member and a second edge close to the sealing member, and the second connection region has a third edge away from the sealing member and a fourth edge close to the sealing member. A minimum distance between the first and third edges is D1, a minimum distance between the second and fourth edges is D2, and D1 and/or D2 is greater than 0.
Resumen de: US2025219210A1
A cover plate, a battery, and a battery pack are provided. The cover plate includes a body and an explosion-proof. The body includes a first sub-part and a second sub-part. The second sub-part includes a sinking table and a boss connected. The second sub-part includes a first side surface and a second side surface disposed oppositely. The boss is higher than the sinking table and the first sub-part. The explosion-proof groove is disposed on the first side surface. A first sub-groove of the explosion-proof groove is at least partially located on the sinking table. A second sub-groove of the explosion-proof groove is located on the boss.
Resumen de: WO2025139633A1
An electrolyte and a lithium-ion battery, which mainly solve the problem of poor compatibility of an electrolyte, which takes a phosphate as a main solvent, and a graphite negative electrode in the prior art. The electrolyte comprises a lithium salt, an additive and an organic solvent, wherein the organic solvent comprises a cyclic ester and a chain ester. The mass ratio of the chain ester in the electrolyte is greater than that of the cyclic ester; and the chain ester comprises a phosphate and a linear ester. The structural formula of the phosphate ester is formula (I), wherein R is selected from a monofluoro- or polyfluoro-substituted saturated or unsaturated aliphatic hydrocarbon, or a monofluoro- or polyfluoro-substituted aromatic hydrocarbon. The linear ester is one or more of a chain carbonate, a chain carboxylic ester and a fluorocarboxylic ester. The compatibility of a phosphate electrolyte and a graphite negative electrode is improved, thereby prolonging the cycle life of a battery.
Resumen de: WO2025139639A1
Provided in the present application are a negative electrode sheet and a battery. The negative electrode sheet comprises a negative-electrode current collector and a functional coating located on at least one surface of the negative-electrode current collector, wherein the functional coating contains lithium; the functional coating comprises a second area and a first area located on at least one side of the second area, and the first area extends to an edge of the negative-electrode current collector in a direction that faces away from the second area; particles are formed on an edge of the first area; and in an X-ray photoelectron spectroscopy analysis result of the functional coating, the ratio of the molar content of oxygen in the first area to the width of the first area is greater than 0.3, and the unit of the width is mm. The present application can solve the problems of there being edge burrs on an edge of an electrode sheet and the edge burrs being prone to piercing a separator to cause potential safety hazards, and can improve the performance, such as the initial Coulombic efficiency and the cycle life, of the battery.
Resumen de: WO2025139608A1
Provided in the present application are a high-nickel positive electrode material, and a preparation method therefor and the use thereof. The high-nickel positive electrode material of the present application is secondary particles formed by gathering primary crystal grains, and there is a crystal boundary between adjacent primary crystal grains. The mass ratio of cobalt to nickel at the grain boundary of a surface layer of the secondary particles is A, the mass ratio of cobalt to nickel at the grain boundary of an inner core of the secondary particles is B, and the mass ratio of cobalt to nickel of the primary crystal grains of the surface layer of the secondary particles is C, wherein A is larger than B and is also larger than C. The high-nickel positive electrode material of the present application has a crystal boundary cobalt-rich structure on the surface layer of the secondary particle, and can enhance the structural stability of the material and reduce side reactions with an electrolyte, such that the battery has an excellent discharge capacity, coulombic efficiency and capacity retention rate.
Resumen de: WO2025137948A1
Provided are a lithium-containing material and a preparation method therefor, a positive electrode sheet, a secondary battery and a power-consuming device. The lithium-containing material comprises a component as shown in formula I, wherein M includes one or more of nickel, cobalt, manganese, iron, sodium, potassium, vanadium, titanium, copper, tungsten, zirconium and molybdenum; and Y includes one or more of oxalate anions, squarate anions and carbonate anions; 1≤a＜2, and 0.01≤b≤0.2. The lithium-containing material has a low decomposition voltage, and as a lithium supplementing agent, facilitates the improvement of the cycling stability of a battery.
Resumen de: WO2025138584A1
An energy storage device and a housing thereof. The housing of the energy storage device comprises a housing body (10), a grounding adapter assembly (20) and a grounding connector (30). A grounding portion of a battery pack is electrically connected to a second docking member (23) by means of the grounding connector (30), and accesses a grounding network outside the housing body (10) by means of a first docking member (22) of the grounding adapter assembly (20), thereby realizing the configuration of grounding of the battery pack. During assembly, a first fastener (40) is used and penetrates an adapter body (21) to correspondingly connect to a support portion (13), such that the grounding adapter assembly (20) is connected to an inner wall of the housing body (10) and the first docking member (22) passes through a through hole (11), and assembly can be completed by connecting the first docking member (22) to the grounding network. The grounding adapter assembly (20) has a simple structure and is easily produced and assembled, thereby reducing costs; and the volume size of the grounding adapter assembly (20) can be made smaller, thereby making an occupied space smaller.
Resumen de: WO2025138401A1
Provided in the present invention is a negative electrode material for a lithium ion battery. The negative electrode material comprises: a current collector; and a polymer layer, the polymer layer being formed on a surface of the current collector, the polymer layer comprising a polymer, a lithium salt, and an inorganic filler, and the mass ratio of the polymer, the lithium salt, and the inorganic filler being 1-25:1:0.1-2. In the negative electrode material for a lithium ion battery of the present invention, by means of forming the polymer layer on the surface of the current collector, the negative electrode current collector and lithium deposited on the current collector during charging can be isolated from direct contact with an electrolyte, side reactions are reduced, and cycle coulombic efficiency is improved.
Resumen de: WO2025143134A1
The present invention provides: a mixture (10) with which it is possible to improve the diffusibility of a substance at the interface between an inorganic particle (19) and an electrolyte solution (22); a sheet (12); an electrode (16); a separator (15); and a power storage device (11). The electrolyte solution contains a first compound that is represented by chemical formula (1), a second compound that is represented by chemical formula (2) or chemical formula (3), and an electrolyte salt that is dissolved in the first compound and the second compound. In chemical formula (1), chemical formula (2), and chemical formula (3), R2 and R3 are different from each other, and R1, R2, and R3 each independently comprise an alkyl group having 4 or fewer carbon atoms, an alkoxyl group, an alkenyl group, an alkynyl group or a halogenated alkyl group, or alternatively comprise an alkyl group, an alkoxyl group, an alkenyl group, an alkynyl group or a halogenated alkyl group that are bonded to each other to form a ring structure. The molar fraction of the second compound with respect to the total of the first compound and the second compound is more than 0.2 but less than 0.5.
Resumen de: WO2025139556A1
A battery assembly and a vehicle having same. The battery assembly comprises: battery packs (2), the battery packs (2) being arranged in sequence in a first direction, and each battery pack (2) being provided with multiple battery cells (60) arranged in sequence in a second direction; a heat exchange plate (1) is provided with a water inlet (10), a water outlet (20), a water inlet flow path in communication with the water inlet (10), and a water outlet flow path in communication with the water outlet (20); the heat exchange plate (1) is provided with heat exchange areas corresponding to the multiple battery packs (2); multiple branch flow paths corresponding to each of battery packs (2) are arranged in the heat exchange areas, the upstream end of each branch flow path is communicated with the water inlet flow path, and the downstream end of each branch flow path is communicated with the water outlet flow path.
Resumen de: WO2025139555A1
A battery tray (100) and a battery assembly. The battery tray (100) comprises: a frame (21), the frame (21) being arranged in a surrounding manner to define a battery accommodating cavity inside the frame (21); a heat exchange plate (1), the heat exchange plate (1) being arranged at the bottom of the frame (21) and closing the battery accommodating cavity; and an extension plate (11), the extension plate (11) being connected to the heat exchange plate (1) and protruding beyond the outer periphery of the frame (21), wherein a cooling flow channel adapted to exchange heat from the battery accommodating cavity is formed inside the heat exchange plate (1), and a water inlet (10) and a water outlet (20) being in communication with the cooling flow channel are formed on the extension plate (11).
Resumen de: WO2025139579A1
Disclosed in the present application are a secondary battery and an electronic apparatus. The secondary battery comprises a housing and an electrode assembly, the housing accommodates the electrode assembly, and the electrode assembly is arranged as curved in a first direction; the electrode assembly comprises a cathode electrode piece, a separator, and an anode electrode piece in a stacked arrangement; the separator comprises a first surface and an opposing second surface along the first direction, the separator comprises a first adhesive layer arranged on the first surface and a second adhesive layer arranged on the second surface; the first adhesive layer adheres to the anode electrode piece, and the second adhesive layer adheres to the cathode electrode piece; the peel strength between the first adhesive layer and the anode electrode piece is S1, and the peel strength between the second adhesive layer and the cathode electrode piece is S2, where S1 < S2 is satisfied. The present invention facilitates reducing the risk of pore clogging for a separator while also suppressing opposing movement of an electrode assembly.
Resumen de: WO2025139700A1
An electrical system, provided with a battery assembly. The battery assembly comprises a plurality of battery cells (2); a heat absorption unit (1) is arranged between every two adjacent battery cells (2); and each heat absorption unit (1) comprises a heat absorption material (12) and at least one framework (11), the framework (11) being provided with a plurality of holes (13) penetrating in the thickness direction of the framework (11), and the heat absorption material (12) filling the holes (13). The battery assembly meets formula (I).
Resumen de: WO2025142919A1
The present invention comprises: an electrode body (14) in which a first electrode (positive electrode (11)) and a second electrode (negative electrode (12)) are disposed with a separator (13) therebetween; and an exterior body (16) that accommodates the electrode body (14). The first electrode (positive electrode (11)) has a tip portion that extends beyond an end portion of the second electrode (negative electrode (12)) in a first direction. After bending, the tip portion is connected to a first current collector plate (upper current collector plate (19)). A plurality of openings are formed in the tip portion.
Resumen de: WO2025142668A1
Provided is a resin composition containing a copolymer (X) having an alkylene structural unit and a nitrile group-containing structural unit, and an alkali metal. The content of the alkali metal is not less than 50 ppm but less than 10,000 ppm. The resin composition has a resistivity of 5,000-25,000 Ω·cm when the content percentage of non-volatile components in the resin composition is set to 8 mass% by using N-methyl-2 pyrrolidone.
Resumen de: WO2025142628A1
This secondary battery is characterized by comprising: an electrode body in which a positive electrode (11) and a negative electrode (12) are wound with a separator (13) interposed therebetween; a negative electrode current collector plate (17) electrically connected to the negative electrode (12); and an electrolyte solution, the negative electrode (12) having a negative electrode core body (40) and negative electrode mixture layers (42) disposed on the negative electrode core body (40), a negative electrode core body exposed part (44) on which the negative electrode mixture layers (42) are not disposed being provided at one end of the negative electrode core body (40) in the winding axis direction of the electrode body, the negative electrode core body exposed part (44) being joined to the negative electrode current collector plate (17), a swellable resin layer (46) being provided on the negative electrode core body exposed part (44).
Resumen de: WO2025142651A1
The present invention is provided with a positive electrode, a negative electrode, a separator disposed between the positive electrode and the negative electrode, and an electrolyte. The positive electrode has a positive electrode current collector and a positive electrode mixture layer disposed on the surface of the positive electrode current collector. The positive electrode mixture layer contains a positive electrode active material and a positive electrode conductive agent. The positive electrode conductive agent contains carbon nanotubes. The carbon nanotubes contain single-walled carbon nanotubes. The density of the positive electrode mixture layer is 3.65 g/cm3 or more. The negative electrode has a negative electrode current collector and a negative electrode mixture layer disposed on the surface of the negative electrode current collector. The negative electrode mixture layer contains a silicon-containing material as a negative electrode active material, and the content ratio of the silicon-containing material in the negative electrode mixture layer is 5 mass% or more.
Resumen de: WO2025139545A1
A battery, comprising a negative electrode sheet and an electrolyte. The negative electrode sheet comprises a negative electrode current collector and a negative electrode active material layer located on one side or two side surfaces of the negative electrode current collector. Protruding particles are disposed on the surface of the negative electrode current collector, the average height of the protruding particles is A, and the unit is μm. The electrolyte comprises 1,3-propane sultone. Using the total weight of the electrolyte as reference, the weight content of the 1,3-propane sultone is Bwt%, and the battery satisfies the following relational expression: 0.01≤B/A≤5. According to the battery, the adhesion between the negative electrode current collector and the negative electrode active material layer can be enhanced without losing the energy density or while losing only a little of the energy density, thus, the rate capability of the battery is improved.
Resumen de: WO2025139516A1
The present application relates to a negative electrode and a lithium ion battery. The negative electrode material comprises secondary particles, the secondary particles comprise at least one primary particle and a first coating layer distributed on at least part of the surface of the primary particle, and the first coating layer is provided with pores; and the negative electrode material further comprises a second coating layer, at least part of the second coating layer is distributed on the surface of the first coating layer, and at least part of the second coating layer is embedded in the pores. At least part of the second coating layer in the negative electrode material of the present application is embedded in the pores of the first coating layer, so that the contact area of the first coating layer and the second coating layer is relatively large, which is conducive to improving the bonding stability of the secondary particles and the second coating layer, then improving the structural stability of the negative electrode material, relieving the volume expansion of the negative electrode material during charge and discharge, and improving the processing performance and the electrochemical stability of the negative electrode material.
Resumen de: WO2025144916A1
A structure can include particles including an electrolyte material attached to fibers including a polymer. The electrolyte material can include an inorganic material. In an embodiment, the structure can include a fiber concentration of at least 0.15/µm2.
Resumen de: WO2025139554A1
A heat exchange plate (100), and a battery assembly and a vehicle having same. The heat exchange plate (100) comprises: a heat exchange plate body (10), a heat exchange surface (11) being formed on the heat exchange plate body (10), and a cooling flow channel (13) and a water inlet (14) and a water outlet (15) in communication with the cooling flow channel (13) being formed inside the heat exchange plate body (10), the cooling flow channel (13) comprising a water inlet flow path (131) and a water outlet flow path (132), the water inlet flow path (131) being in communication with the water inlet (14), the water outlet flow path (132) being in communication with the water outlet (15), and the water inlet flow path (131) and/or the water outlet flow path (132) being provided at the edge of the heat exchange plate body (10); and plurality of branch flow paths (133), each branch flow path (133) being connected to the water inlet flow path (131) and the water outlet flow path (132) and directly facing the heat exchange surface (11) so as to be suitable for heat exchange of a battery pack.
Resumen de: WO2025142650A1
The present invention comprises a positive electrode, a negative electrode, a separator positioned between the positive electrode and the negative electrode, and an electrolyte, wherein the positive electrode has a positive electrode current collector and a positive electrode mixture layer that is positioned on a surface of the positive electrode current collector, the positive electrode mixture layer includes a positive electrode active material and a positive electrode conductive agent, and the positive electrode conductive agent contains single-walled carbon nanotubes. The positive electrode active material contains a lithium metal composite oxide, and the atomic ratio of Ni among non-Li metal elements contained in the lithium metal composite oxide is 80% or more. The surface of the positive electrode active material is covered by a compound that contains at least one element selected from the group consisting of B, F, P, S, Cl, Mg, Sr, Ca, Ti, W, Zr, rare earths, and Al.
Resumen de: WO2025142566A1
This secondary battery is characterized in that: the secondary battery comprises an electrode body (14) in which a positive electrode (11) and a negative electrode (12) are wound with a separator (13) therebetween, a negative electrode current collector plate (17) electrically connected to the negative electrode (12), and an electrolyte solution; the negative electrode (12) includes a belt-like negative electrode core body and a negative electrode mixture layer disposed on the negative electrode core body; the electrode body (14) of the negative electrode core body includes, at one end in the winding axis direction thereof, a negative electrode core body exposed part (44) on which the negative electrode mixture layer is not disposed; the negative electrode core body exposed part (44) is joined to the negative electrode current collector plate (17); the positive electrode (11) includes a belt-like positive electrode core body and a positive electrode mixture layer disposed on the positive electrode core body; the positive electrode mixture layer includes a positive electrode active material and carbon nanotubes; and the carbon nanotubes include at least one of single-walled carbon nanotubes and multi-walled carbon nanotubes.
Resumen de: WO2025142182A1
Problem To provide a method for reusing, by a simple method, a silicon cell separated from a solar panel. Solution Provided is a method for recovering monocrystalline silicon or polycrystalline silicon from a solar panel, the method being characterized by: separating monocrystalline silicon or polycrystalline silicon from a waste solar panel; thereafter, washing the surface of the separated monocrystalline silicon or polycrystalline silicon with an acid; and crushing the monocrystalline silicon or polycrystalline silicon, of which the surface has been washed with an acid, to an average particle diameter of 0.5-5.0 μm in the presence of a dispersion medium containing an alcohol.
Resumen de: WO2025139496A1
The present application relates to the technical field of lithium batteries, and in particular to a preparation method for a positive electrode material, a positive electrode material, a positive electrode sheet, a battery, and an electric device. The method of the present application comprises: mixing a nitrate salt and a precursor in a solvent, and roasting to obtain a positive electrode material, wherein the precursor comprises LiFe(1-y)MyPO4, wherein M comprises one or more metal elements from Group IVB, Group VB, Group VIII, Group IIA, Group IIIA, Group IVA, and Group VA, and y is 0-0.1. The method of the present application improves the electronic conductivity of the positive electrode material, and the specific capacity and the cycle stability of the battery.
Resumen de: WO2025144881A1
An electrochemical cell including: a first electrode including iron, wherein a density (D) of the iron in the first electrode is greater than 2.11 g/cm3 and less than 7.87 g/cm3, based on a total weight of the iron and a total volume of the first electrode; an alkaline electrolyte; a second electrode; and an additive comprising a metal M, wherein the additive is effective to facilitate oxidation of the iron to Fe3-xMxO4, wherein 0≤x<1, and wherein a specific discharge capacity (Q) of the first electrode in the first discharge plateau is represented by Formula 1: Q > ((7.87/D)-1)∗352 mAh/gram of iron, based on a total weight of iron in the first electrode (1).
Resumen de: WO2025139487A1
Disclosed in the present application are a secondary battery and an electric device, relating to the field of batteries. By controlling mVC, mFEC, mBP, PD, and mn to satisfy formula (I), the present application ensures that the secondary battery using natural graphite as a negative electrode active material has good high-temperature cycling and storage performance and a higher cost performance.
Resumen de: WO2025139486A1
A high-temperature-resistant long-life lithium-ion or sodium-ion battery and a preparation method therefor. The lithium-ion battery or the sodium-ion battery comprises a positive electrode, a negative electrode, a separator and an electrolyte. The positive electrode comprises a current collector and a positive electrode coating material loaded on the current collector, and the positive electrode coating material comprises a positive electrode active substance containing a transition metal and a polymer containing a coordination group, wherein the coordination groups can be coordinated with the transition metal ions in the positive electrode active substance, and the polymer containing the coordination group has a swelling degree of 5-50% in the electrolyte at 25-60ºC. By coordinating the coordination groups of the polymer with the transition metal ions, the polymer can be firmly adsorbed on the surface of the positive electrode active substance, forming a stable protective layer, inhibiting the oxidation of the electrolyte and the dissolution of transition metal ions, and thus greatly improving the high temperature performance and safety of the lithium-ion battery or the sodium-ion battery.
Resumen de: WO2025140640A1
A battery collision processing method, device, and system, a computer program, and a computer readable medium, relating to the technical field of battery collision processing. The method comprises: acquiring collision signals collected by a plurality of collision sensors (120) arranged at different positions on a power battery (S101); determining collision information of the power battery on the basis of the collision signal collected by each of the collision sensors (120) (S102); uploading the collision information to a cloud, so that the cloud determines a vehicle end processing strategy for a vehicle end on the basis of the collision information (S103); and receiving and executing the vehicle end processing strategy sent by the cloud (S104). By detecting collision signals of a power battery at a vehicle end, a cloud can determine a corresponding vehicle end processing strategy on the basis of the collision position and the collision strength when the power battery experiences a collision, so that the vehicle end can timely execute the corresponding vehicle end processing strategy, to perform targeted processing on the power battery having experienced a collision, thereby minimizing the collision risk of the power battery and ensuring the safety of users using a vehicle.
Resumen de: WO2025140037A1
The present disclosure provides a composite negative electrode sheet and a use thereof in a solid-state battery. The composite negative electrode sheet comprises a silicon active material and a metal compound, and in the process of silicon lithiation, a ternary Zintl phase Li-M-Si and an ionic conductive phase lithium compound are formed, wherein the mass ratio of the metal compound to the silicon active material is 5%-30%. According to the technical solution, by compounding the silicon active material with the metal compound, the ternary Zintl phase Li-M-Si can be formed in situ within a silicon-based negative electrode. The ternary Zintl phase has a stable structure, which can alleviate the volume expansion problem of silicon and enhance cycle stability. In addition, the lithium compound is formed to act as an ionic conductive phase, accelerating ion transport, enhancing lithium-ion transport kinetics, and improving the rate performance of batteries.
Resumen de: WO2025140138A1
Disclosed in the present application are an electrochemical device, a battery pack and an electrical apparatus. The electrochemical device comprises a casing and an electrode assembly accommodated in the casing; the electrode assembly comprises a first electrode sheet, a second electrode sheet and a separator, the first electrode sheet, the separator and the second electrode sheet being stacked and wound in a winding direction; the first electrode sheet comprises a first current collector and a first active substance arranged on the first current collector; the first current collector comprises a first main body area and a first empty foil area, the first active substance being arranged in the first main body area; the electrochemical device is configured to: in response to placing the electrochemical device having a SOC of 100% in a first ambient temperature for a first duration, perform a discharge operation at a first discharge rate in the first ambient temperature, and keep the discharge operation until the SOC of the electrochemical device is 90%, the minimum voltage value of the electrochemical device being greater than or equal to 2V, the first ambient temperature being -20°C-0°C, the first duration being greater than or equal to 6 hours, and the first discharge rate being greater than or equal to 10C.
Resumen de: WO2025139438A1
Disclosed in the present application are a positive electrode material precursor as well as a preparation method therefor and the use thereof, which relate to the technical field of lithium ion battery positive electrode materials. The positive electrode material precursor of the present application comprises precursor particles, the precursor particles being formed by agglomeration of a plurality of first particles, the first particles being of a core-shell structure, the core-shell structure being provided with an inner core and a shell layer, the inner core being provided with a compact seed crystal, the shell layer being provided with a plurality of whiskers, and pores being formed between the adjacent whiskers. Accordingly, the present application forms the large-particle precursor which is highly agglomerated and porous and which has puff-like porous surface morphology, and facilitates industrial production.
Resumen de: WO2025139594A1
A battery pack (100) and an electric vehicle comprising same. The battery pack (100) comprises a battery body and a battery case (1). The battery case (1) comprises an upper cover (15), a bottom plate (12), and an accommodating cavity (14) for accommodating the battery body. The upper cover (15) and the bottom plate (12) are arranged at the top and the bottom of the accommodating cavity (14), respectively, a temperature adjustment member (16) is provided on the upper cover (15) and/or the bottom plate (12), and the temperature adjustment member (16) is used for adjusting the temperature in the accommodating cavity (14). The battery body is disposed in the accommodating cavity (14), and the battery body can be protected by means of the accommodating cavity (14), so that the service life of the battery body is prolonged. In addition, in the described form, the battery pack (100) can be assembled into an integrated module, thereby facilitating subsequent mounting of the battery pack (100) in the form of a module. The temperature adjustment member (16) is used for adjusting the temperature in the accommodating cavity (14); thus, the temperature of the battery body can be changed by means of the temperature adjustment member (16), so that the temperature of the battery body can be kept in a normal range, thereby improving the use safety of the battery body and prolonging the service life thereof, and increasing the universality of the battery pack (100) in different weather or wor
Resumen de: WO2025139439A1
The present application relates to the field of batteries, and in particular to an electrolyte and a battery comprising the electrolyte. The electrolyte comprises a first additive, wherein the first additive comprises a substance shown in formula I and/or a substance shown in formula II. The electrolyte has the performance of inhibiting gas production, and can improve the safety performance and electrochemical performance of batteries.
Resumen de: WO2025140042A1
A battery cell (11), a battery (1), a casing assembly, and an electric device. The battery cell (11) comprises a battery cell body (111), the battery cell body (111) has a first side wall (1111) in a thickness direction, and n through holes (1112) are formed in the first side wall (1111); the area of the first side wall (1111) is S0, the cross-sectional area of each through hole (1112) is S, and it is satisfied: n*S≤(1-p)*S0, wherein 80%≤p≤99.8%, and n is a positive integer greater than or equal to 1.
Resumen de: WO2025140007A1
The present application relates to a charging method and apparatus, and a mobile terminal. The method comprises: when a battery meets a preset trigger condition, acquiring battery aging information, wherein the preset trigger condition comprises a trigger condition for switching from a constant-current charging mode to a constant-voltage charging mode; when it is determined that the battery aging information meets a charging acceleration condition, stopping charging within a preset duration; and acquiring a voltage drop of the battery before and after charging is stopped, and charging the battery on the basis of the voltage drop. By using the method, the attenuation of the charging speed of the battery after aging can be less, so that the charging speed of the battery is increased.
Resumen de: WO2025140038A1
A negative electrode sheet, a battery, and an electrical device. The negative electrode sheet comprises a current collector and a negative active material layer arranged on at least one surface of the current collector; the negative active material layer comprises an active material and conductive carbon black; the active material comprises a carbon-based material; the conductive carbon black satisfies equation (I).
Resumen de: WO2025140170A1
Disclosed in the present utility model is a battery pack heating integrated design structure coping with a low-temperature use environment, comprising a battery pack cold plate. The surface of the battery pack cold plate facing battery cells is provided with accommodating cavities, a heating piece is arranged in each accommodating cavity, and heat preservation cotton is arranged between each heating piece and the inner surface of the corresponding accommodating cavity; and the surface of the battery pack cold plate facing the battery cells is also provided with a heat-conducting layer. According to the present utility model, the heating piece design is integrated on the basis of the liquid heating and direct heating design, the slotting design is carried out on the basis of conventional battery pack cold plates, a heating piece mounting space is reserved, and the heating piece is built-in, thereby increasing the heating speed, improving the heating efficiency, saving the heating time, and mitigating the problem of occupying additional design space and weight in conventional heating piece mounting schemes; in addition, by adopting a built-in heating piece scheme, the heat efficiency is higher, heat loss is avoided, and the heating reliability is improved; the present utility model achieve sthe use of new energy electric vehicles in a low-temperature environment, and the use environment area of the new energy electric vehicles is widened.
Resumen de: WO2025139091A1
A positive electrode material for a lithium-ion battery and a preparation method therefor, a positive electrode sheet, and a lithium-ion battery. The positive electrode material has a chemical formula of LiNi1-x-yCoxMyM'bO2, wherein 0
Resumen de: WO2025139092A1
The embodiments of the present disclosure provide a composite material, a battery assembly, an electric device and an energy storage system. The composite material has both heat absorption and heat insulation functions, and can effectively improve the thermal safety performance of a battery assembly.
Resumen de: WO2025139094A1
A hard carbon anode material, a 2θ value VC corresponding to a diffraction peak of a (002) crystal plane in an XRD pattern of the hard carbon anode material, an ID/IG value VD/G in Raman spectroscopy, and an oil absorption value VDBP measured by mL/100 g satisfying the following: 0.8≤VC/VDBP+VD/G≤12.60. The present application further provides an anode using the hard carbon anode material, a sodium-ion battery, and an apparatus.
Resumen de: WO2025139077A1
A positive electrode sheet, a lithium battery and a device. The positive electrode sheet comprises a positive electrode current collector, and a first positive electrode material layer and a second positive electrode material layer which are sequentially stacked on at least one side of the positive electrode current collector, wherein the first positive electrode material layer comprises a first lithium manganese iron phosphate material, and the second positive electrode material layer comprises a second lithium manganese iron phosphate material.
Resumen de: WO2025139280A1
The present application relates to the technical field of battery energy, and in particular to an electrode sheet and a battery. The electrode sheet comprises a current collector, a tab, and a first active layer. One surface of the current collector is coated with the first active layer, and the first active layer is provided with a first tab groove; the first active layer located outside the first tab groove is provided with accommodating portions, and openings of the accommodating portions on the first active layer are located on the side of the first active layer away from the current collector; the thicknesses of the first active layer at the positions of the accommodating portions are less than the thickness of the first active layer in a region where a non-accommodating portion is located; and the ratio of the minimum thickness of the first active layer at the positions of the accommodating portions to the thickness of the first active layer in the region where the non-accommodating portion is located ranges from 0.3 to 0.7. Lithium ions can be more quickly and easily intercalated in an active layer near a current collector by means of accommodating portions, thereby enhancing the kinetic performance of a battery, reducing the current density in a region near a tab groove, and mitigating lithium plating in the region near the tab groove.
Resumen de: WO2025139164A1
A sodium ion battery electrolyte, a sodium ion battery and an electrical device. The sodium ion battery electrolyte comprises a sodium salt and a sulfonate compound, and the sulfonate compound comprises one or more of compounds represented by formula (I), formula (II) and formula (III), wherein R1, R5, R6, R9 and R10 are each selected from C1-C3 alkylene groups, and R2, R3, R4, R7, R8 and R11 are each selected from C1-C3 alkyl groups or C1-C3 fluoroalkyl groups. The sulfonate compound contains both a sulfonate group and a carbonate group in the molecules, and thus can be used as a film-forming additive to promote generation of a uniform and stable SEI film rich in sulfates and sulfites on the surface of an electrode, thereby improving the cycle performance and the rate capability of the sodium ion battery.
Resumen de: WO2025144102A1
A hydrogel composition for reinforcing a cellulose paper battery separator comprises a monomer, a cross-linking reagent, an initiator, and a metal salt. A hydrogel-reinforced cellulose paper battery separator comprises a cellulose paper, and a hydrogel integrated within the cellulose paper. A paper battery comprises the hydrogel reinforced cellulose paper batter separator. A method for fabricating the hydrogel reinforced cellulose paper batter separator.
Resumen de: WO2025140139A1
Provided in the embodiments of the present application are an energy storage device, an energy storage system, and a liquid cooling control method for battery packs of the energy storage device. The energy storage device comprises a plurality of battery packs, an input main line, a plurality of input branches, an output main line and a plurality of output branches. Each of the plurality of battery packs comprises a liquid inlet and a liquid outlet; the plurality of input branches are communicated with the input main line; the plurality of output branches are communicated with the output main line. The plurality of input branches are communicated with the liquid inlets of the plurality of battery packs on a one-to-one basis, and the plurality of output branches are communicated with the liquid outlets of the plurality of battery packs on a one-to-one basis. The energy storage device further comprises series branches and control valves, one end of each series branch being communicated with the liquid outlet of one battery pack, and the other end of the series branch being communicated with the liquid inlet of another battery pack; each control valve is used for controlling switching between series connection and parallel connection of one battery pack and another battery pack. The energy storage device of the present application can effectively suppress thermal runaway of battery packs.
Resumen de: WO2025140135A1
Embodiments of the present application provide a battery cell, a battery, and an electrical device. The battery cell comprises a casing, a first insulating piece, and a second insulating piece. The casing is provided with a first wall. The first insulating piece covers the outer side of the casing. At least part of the second insulating piece is located between the first wall and the first insulating piece and covers at least part of an outer surface of the first wall. The first insulating piece covers the casing, the first wall is a part of the casing, and the first insulating piece can perform insulation protection on the first wall of the casing; the second insulating piece covers at least part of the outer surface of the first wall, and the second insulating piece can perform insulation protection on at least part of the first wall; at least part of the second insulating piece is located between the first wall and the first insulating piece, and at least part of the second insulating piece and the first insulating piece can both perform insulation protection on the first wall, so that the insulation protection effect for the first wall is enhanced, and the reliability of the battery cell is improved.
Resumen de: WO2025140137A1
Disclosed in the present application are an electrochemical apparatus, a battery pack and an electrical device. The electrochemical apparatus comprises a housing and an electrode assembly accommodated in the housing. The electrode assembly comprises a first electrode sheet, a second electrode sheet and a separator, wherein the first electrode sheet, the separator and the second electrode sheet are laminated and are wound in a winding direction, and one of the first electrode sheet and the second electrode sheet is a positive electrode sheet, and the other one is a negative electrode sheet. The first electrode sheet comprises a first current collector and a first active substance provided on the first current collector, the first current collector comprising a first main body region and a first blank foil region, the first active substance being provided in the first main body region, and the arrangement direction of the first main body region and the first blank foil region being perpendicular to the winding direction. The first blank foil region comprises a first rolled flat region, the first rolled flat region being far away from the first main body region. The electrochemical apparatus is provided with the first rolled flat region, so that the current-carrying capability can be increased, and the energy loss is reduced when the electrochemical apparatus discharges at a high rate of 15C-20C, thus allowing the electrochemical apparatus to have a higher discharge capacity.
Resumen de: WO2025142279A1
According to the present invention, after setting communication IDs to module controllers (MC1-MCm), a string controller (SC) executes arrangement identification processing. The arrangement identification processing includes: transmission processing for transmitting, to any one of the module controllers (MC1-MCm), a control signal for allowing switches (S31-S3m) to make a connection; acquisition processing for acquiring a measured value by a voltage sensor (12) in a state in which the switches (S31-S3m) make connections; and identification processing in which the module controllers (MC1-MCm) identify an arrangement in the string (St) of the corresponding storage battery modules (M1-Mm) in accordance with the acquired measured value by the voltage sensor (12).
Resumen de: WO2025142398A1
The present invention comprises: a battery 4; an electric motor M1 that transmits power to traveling devices 10,11 using the power of the battery 4; a temperature regulating means H that regulates the temperature of the battery 4 using electricity; and a temperature detecting means 4B that detects the temperature of the battery 4. The temperature regulating means H operates to increase the temperature of the battery 4 if the temperature detected by the temperature detecting means 4B is lower than a first set temperature.
Resumen de: WO2025142574A1
A secondary battery (10) comprises a bottomed cylindrical exterior body (16) that has an opening part, a sealing body (18) for sealing the opening part, an electrode body 12 that is accommodated in the exterior body (16), an electrolytic solution that is accommodated in the exterior body (16), and an insulating member (20) that is accommodated in the exterior body (16). The secondary battery (10) is characterized in that: the exterior body (16) has a groove part (26) formed therein, where a part of a side surface of the exterior body (16) is recessed inward thereof to support the sealing body (18); the insulating member (20) has a flat plate part (22) positioned between the electrode body (12) and the groove part (26), and a protruding part (24) protruding from the sealing body-side surface of the flat plate part (22), the protruding part (24) contacting the inner wall of the groove part (26); and the length of the protruding part (24) from one end of the protruding part (24) on the flat plate part (22) side to the tip of the protruding part (24) is longer than the length in the vertical direction from the sealing body-side surface of the flat plate part (22) to the upper surface of the groove part (26) on the inner wall side.
Resumen de: WO2025142573A1
Provided is a nonaqueous electrolyte secondary battery which is provided with an electrode body that is obtained by winding a positive electrode (11) and a negative electrode along the long-side direction of the electrodes with a separator being interposed therebetween, the nonaqueous electrolyte secondary battery being characterized in that: the positive electrode (11) has a belt-shaped positive electrode current collector (32), a positive electrode mixture layer (34) disposed on both surfaces of the positive electrode current collector (32), and a pair of exposure parts (36a, 36b) in which both surfaces of the positive electrode current collector (32) are exposed; a positive electrode tab (20) is joined to the exposure part (36a); a first protective layer (38) is disposed on the positive electrode (11) so as to cover the exposure part (36a); a second protective layer (40) is disposed on the positive electrode (11) so as to cover the exposure part (36b); and, with respect to the first protective layer (38), end parts (38a, 38b) that extend in the short-side direction of the positive electrode (11) are each formed in a non-linear shape in a plan view seen from the thickness direction of the positive electrode (11).
Resumen de: WO2025140726A1
A top patch (1, 2). A first through hole (101) is formed on the top patch (1, 2); the top patch (1, 2) can be attached to the cover plate (3, 4); the first through hole (101) is provided corresponding to a pole (31, 41) and/or a battery two-dimensional code on the cover plate (3, 4); and the length and width of the cover plate (3, 4) are respectively a and c, and the length and width of the top patch (1, 2) are respectively A and C: 0.5 mm≤a-A≤8 mm, and/or 0.5 mm≤c-C≤8 mm. Also provided is a battery, comprising the cover plate (3, 4) and the top patch (1, 2) that is attached to the cover plate (3, 4). The top patch (1, 2) and the battery provided with the top patch (1, 2) can protect the cover plate (3, 4) during laser welding, thereby ensuring the quality of the cover plate (3, 4) and the battery.
Resumen de: WO2025140379A1
Provided are a battery cell module and a battery pack. The battery cell module comprises two battery cell assemblies and a sealing structure, wherein the two battery cell assemblies are spaced apart from each other in a first direction and form a spacing space. Each battery cell assembly comprises a first bracket, a plurality of battery cells and an electrical connection structure, wherein a plurality of first arrangement grooves running in the first direction are provided in the first bracket in an array; the first arrangement grooves are in communication with the spacing space; end portions of the plurality of battery cells are respectively inserted into the first arrangement grooves; the electrical connection structure mounted on the first bracket electrically connects the plurality of battery cells to one another; and first pressure relief valves of at least some of the battery cells can be in communication with the spacing space by means of the first arrangement grooves. The sealing structure surrounds and is sealingly connected to edges of the two first brackets, so as to seal the spacing space. The battery cell module can realize directional pressure relief of stacked battery cells.
Resumen de: WO2025140486A1
Provided in the present application are a polymer film, and a preparation method therefor and the use thereof. The polymer film comprises a polymer and a whisker material at a mass ratio of (95.0-99.5):(0.5-5). In order to solve the problems of low tensile strength and poor thermal conductivity of a traditional polymer base film of a composite current collector in the related art, the present application provides a polymer film with both high tensile strength and enhanced thermal conductivity, and the polymer film is used as a base film to prepare a composite current collector; therefore, the problem of low yield caused by low tensile strength and the problems of hole defects and poor electrical conductivity caused by poor thermal conductivity can be solved, and a high-strength composite current collector can be prepared, thereby promoting further promotion and application of the composite current collector.
Resumen de: WO2025142513A1
A non-aqueous electrolyte secondary battery (10) comprises an electrode body (14) that has a positive electrode (11) and a negative electrode (12), and a non-aqueous electrolyte, said non-aqueous electrolyte secondary battery (10) being characterized in that: the positive electrode (11) has a positive electrode collector (30) and a positive electrode mixture layer (32) which is provided on the positive electrode collector (30); the negative electrode (12) has a negative electrode collector (40) and a negative electrode mixture layer (42) which is provided on the negative electrode collector (40); the positive electrode mixture layer (32) contains a positive electrode active material; the positive electrode active material has first and second peaks in a volume-based particle size distribution curve; the negative electrode mixture layer (42) contains a negative electrode active material; the negative electrode active material contains at least a silicon-containing material; and the discharge capacity per 1.0 g of the negative electrode mixture layer (42) is not less than 0.60Ah.
Resumen de: WO2025142517A1
Provided is a non-aqueous electrolyte secondary battery with further improved safety. A non-aqueous electrolyte secondary battery according to one aspect of the present disclosure comprises: a wound electrode body in which a belt-like positive electrode and a belt-like negative electrode are wound with a separator therebetween; and an exterior body that accommodates the electrode body. The negative electrode has a negative electrode current collector and a negative electrode mixture layer formed on the surface of the negative electrode current collector. The positive electrode has a positive electrode current collector, a positive electrode mixture layer formed on the surface of the positive electrode current collector, and a reinforcement layer applied to the surface of the positive electrode current collector on the winding start side beyond the winding start end of the positive electrode mixture layer. The reinforcement layer includes a non-facing part that is not facing the negative electrode mixture layer with the separator therebetween.
Resumen de: WO2025142375A1
This method for manufacturing an all-solid-state battery 1 includes: a block formation step for forming a block B by solidifying a powder material; an electrode laminate formation step for forming an electrode laminate 2 by depositing a powder, which is generated by removing the block B, on a first base material F1; and a superposing step for superposing the electrode laminate 2 and a current collector 3 upon each other.
Resumen de: WO2025142350A1
The present disclosure provides a means capable of suppressing an increase in resistance at high temperatures in a lithium precipitation type lithium secondary battery comprising a negative electrode intermediate layer. Provided is a lithium secondary battery comprising a power generation element that has: a positive electrode; a negative electrode which has a negative electrode collector and in which lithium metal precipitates during charging; a solid electrolyte layer which is interposed between the positive electrode and the negative electrode and which contains a solid electrolyte; and a negative electrode intermediate layer which is interposed between the negative electrode collector and the solid electrolyte layer and which contains a lithium-reactive material and a binder, wherein the porosity of the negative electrode intermediate layer is 45-70%, the lithium-reactive material contains amorphous carbon, and the DBP absorption of the amorphous carbon is 210-265 mL/100g.
Resumen de: WO2025141751A1
Problem To provide a means capable of suppressing occurrence of a short circuit in a lithium-precipitation-type lithium secondary battery having a negative electrode intermediate layer. Solution A lithium secondary battery comprising a power-generating element comprising: a positive electrode having a positive electrode active material layer containing a positive electrode active material; a negative electrode which has a negative electrode current collector and in which lithium metal precipitates during charging; a solid electrolyte layer which is interposed between the positive electrode and the negative electrode and contains a solid electrolyte; and a negative electrode intermediate layer which is present adjacent to a surface of the solid electrolyte layer on the negative electrode current collector side and contains a carbon material and metal particles which are not solid-solved with lithium, wherein the thickness of the negative electrode intermediate layer is between 0.1 μm and 5 μm (non-inclusive).
Resumen de: WO2025141739A1
This electricity storage device comprises: a chargeable/dischargeable secondary battery; a control unit that controls charging/discharging of the secondary battery; and a storage unit that stores deterioration characteristic information relating to the deterioration characteristics of the secondary battery. The secondary battery is a nickel-zinc secondary battery in which a discharge depth and a capacity deterioration rate per charge/discharge are in a predetermined linear relationship. The storage unit stores information indicating the linear relationship as the deterioration characteristic information. The control unit estimates the deterioration state of the secondary battery on the basis of the number of charge/discharge times for each discharge depth of the secondary battery and the deterioration characteristic information stored in the storage unit.
Resumen de: WO2025141695A1
Problem To provide a vehicle structure in which poor cooling performance of the rear side of an internal battery as compared with the front side thereof is prevented or suppressed. Solution The present invention comprises a battery case 50, a battery 20, an air intake port 30, and an air exhaust port 40. In an internal space of the battery case, a flow path in which a gas flows has, in a cross-section in the longitudinal direction X, a smaller total cross-sectional area on the rear side than on the front side.
Resumen de: WO2025141696A1
Problem To provide a vehicle structure for preventing or suppressing the deterioration of cooling performance on the inner side of a battery compared to the outer side. Solution The present invention includes a battery case 50, a battery 20, an intake port 30, and an exhaust port 40. In the internal space in the battery case, the total cross-sectional area of a flow path through which a gas flows in a cross section in the vehicle width direction Y is smaller on the inner side than on the outer side.
Resumen de: WO2025141652A1
A sensor module (1) comprises: a wiring board (10) including a first mounting surface (11) and a second mounting surface (12); a sensor (20) disposed on the first mounting surface (11); a wireless communication module (30) disposed on the first mounting surface (11) and electrically connected to the sensor (20); and a secondary battery (60) disposed on the second mounting surface (12). The secondary battery (60) includes: a separator (621); a positive electrode layer (622) and a negative electrode layer (623) that are disposed so as to sandwich the separator (621); an electrolytic solution (626) that is impregnated into the separator (621), the positive electrode layer (622), and the negative electrode layer (623); and an exterior material (600) that accommodates the separator (621), the positive electrode layer (622), the negative electrode layer (623), and the electrolytic solution (626). At least one of the positive electrode layer (622) and the negative electrode layer (623) is a sintered electrode layer, which is an electrode layer composed of a sintered body.
Resumen de: WO2025140460A1
Provided are a method and device for determining the mass of carbon monoxide released during thermal runaway of a lithium ion battery. The method comprises: acquiring a battery state of charge (SOC) corresponding to a lithium ion battery when thermal runaway occurs; determining a mass loss value of the lithium ion battery before and after the thermal runaway and determining the thermal runaway duration of the lithium ion battery; on the basis of the SOC and the mass loss value, determining first mass of carbon monoxide released during the thermal runaway of the lithium ion battery; on the basis of the SOC and the thermal runaway duration, determining second mass of carbon monoxide released during the thermal runaway of the lithium ion battery; and carrying out weighted summation on the first mass and the second mass to obtain the total mass of carbon monoxide released during the thermal runaway of the lithium ion battery.
Resumen de: WO2025140589A1
The present disclosure relates to the field of batteries, and in particular to a battery. The battery comprises a positive electrode sheet and an electrolyte. The positive electrode sheet comprises a positive electrode active material layer, the XRD diffraction pattern of the positive electrode active material layer has a 012 diffraction peak and a 006 diffraction peak, and the angle value difference between the 012 diffraction peak and the 006 diffraction peak is greater than 0.1°. The electrolyte comprises a first additive, and the first additive comprises an element O and a cyano group. According to the battery of the present disclosure, the positive electrode sheet and the electrolyte synergistically improve the cycle performance and safety performance of the battery.
Resumen de: WO2025140541A1
The present application relates to an energy storage battery equalization circuit and method, and an energy storage battery equalizer. The energy storage battery equalization circuit comprises a plurality of first bidirectional equalization circuits and a plurality of second bidirectional equalization circuits. Each first bidirectional equalization circuit is correspondingly connected to a battery module and is configured to: equalize the voltage of a first battery cell and the voltage of a second battery cell in the battery module. Each second bidirectional equalization circuit is correspondingly connected to any two adjacent battery modules and is configured to: equalize the voltage of the second battery cell in a first battery module of the any two adjacent battery modules and the voltage of the first battery cell in a second battery module of the any two adjacent battery modules. The present application is used for increasing the equalization speed and efficiency and the battery utilization rate, and implementing miniaturization and modular expansion of energy storage battery equalization circuits.
Resumen de: WO2025140473A1
Provided is a ternary material. The chemical formula of the ternary material is LiNi1-x-yCoxMnyMaO2, wherein 0
Resumen de: WO2025142352A1
Problem To provide a fire spread prevention material capable of sufficient fire spread prevention, a battery pack utilizing said fire spread prevention material, and an automobile comprising said battery pack. Solution One aspect of the present invention provides such a fire spread prevention material. The fire spread prevention material comprises an inorganic-fiber base material which includes inorganic fibers, and sodium silicate which is held on the inorganic-fiber base material. Provided that the average temperature rise rate from 100°C to 200°C when the fire spread prevention material is heated is V °C/sec, and the thickness of the fire spread prevention material after exceeding 200°C is Da mm, V × Da is 20 or less.
Resumen de: WO2025142230A1
This non-aqueous electrolyte secondary battery comprises: a bottomed cylindrical outer can (15); a non-aqueous electrolyte and an electrode body housed in the outer can (15); a sealing body (16) for closing an opening (15a) of the outer can (15); a gasket (27) disposed between the outer can (15) and the sealing body (16); and a sealing material (30) disposed between the outer can (15) and the gasket (27), the sealing material (30) having a layered structure in which a first sealing material layer (31) and a second sealing material layer (32) are arranged in said order from the outer can (15) side, the second sealing material layer (32) having oil repellency with respect to the non-aqueous electrolyte more than the first sealing material layer (31), the first sealing material layer (31) and/or the second sealing material layer (32) containing an alkaline compound.
Resumen de: WO2025142228A1
A non-aqueous electrolyte secondary battery comprising: an electrode body (14) in which an elongated positive electrode (11) and an elongated negative electrode (12) are wound with a separator (13) interposed therebetween; and a bottomed cylindrical outer can that accommodates the electrode body (14), wherein said non-aqueous electrolyte secondary battery is characterized in that the negative electrode (12) has a negative electrode current collector exposed portion (43) in which a negative electrode mixture layer (41) is not provided on at least the outer peripheral surface of the negative electrode current collector (40) and the negative electrode current collector (40) is exposed, the negative electrode current collector exposed portion (43) is provided on the outermost periphery of the electrode body (14), an adhesive layer (50) is provided on at least a portion of the inner peripheral surface of the negative electrode current collector exposed portion (43), and the negative electrode current collector exposed portion (43) is bonded to the negative electrode (12) facing the negative electrode current collector exposed portion (43) by the adhesive layer (50).
Resumen de: WO2025142286A1
In this energy storage information processing method, a computer: acquires capacity deterioration progression data based on a simulation before the start of operation of a system including an energy storage element; derives a system guaranteed deterioration progression with respect to the deterioration progression data; calculates a guaranteed capacity value for a prescribed period from the derived system guaranteed deterioration progression; and outputs the calculated guaranteed capacity value.
Resumen de: WO2025143724A1
The present invention relates to a method for manufacturing a zinc negative electrode of a zinc-ion secondary battery and a zinc-ion secondary battery, the method comprising: a step of forming an artificial coating layer on the surface of a zinc negative electrode by a chemical reaction performed by immersing zinc metal in an inorganic metal salt solution; and a washing and drying step. The present invention can provide a negative electrode of an aqueous zinc-ion secondary battery, which is a safe and eco-friendly next-generation battery for an electric vehicle and an ESS, and a method for manufacturing same.
Resumen de: WO2025144380A1
The invention relates to a thickness and OCV control unit (1) in li-ion battery cells, comprising a lower bedding (1.1) and upper bedding (1.2) controlling the volume accuracy by being placed within the battery cell; thickness measurement probe (1.3) detecting whether the battery cell is within the specified thickness tolerance range; current measuring probe (1.4) measuring the open circuit voltage (OCV) of the battery cell; load cell (1.5) applying the pressure required for the measurement without damaging the battery cell; centering ball (1.6) ensuring even force distribution and centering; corner bedding (1.7) individually measuring the thickness of the four corners of the battery cell; barcode reader (1.8) reading the serial number specific to each battery cell and presenting it for integration into the system, and an activator (1.9) providing the movement required for the pressing force.
Resumen de: WO2025144381A1
The invention relates to tab bending unit (1) in li-ion battery pouch-type cell modules comprising in its structure at least two rollers (1.1) positioned on both side of the automation assembly conveyor, capable of horizontal pressure and movement; piston (1.2), which enables the rollers (1.1) to perform the bending process by applying pressure; vertical movement module (1.3) that enables vertical up-down movement of the pistons (1.1) and horizontal movement module (1.4) that enables horizontal left-right movement of the pistons (1.1).
Resumen de: WO2025144382A2
The invention relates to tab cutting unit (1) in li-ion battery pouch-type cell modules which comprises, within its structure, each of which can move independently of each other in the axis perpendicular to the conveyor, to be positioned one or more in the production line, a cutter group (1.1) that performs tab cutting; guides (1.3) that allow the cutter group (1.1) to cut according to the desired size in the designed lines; unit motion module (1.7) which performs the movement of the tab cutting unit (1); linear rail-car module (1.4), which ensures the accuracy of the movement performed by the unit motion module (1.7) and reduces friction; insulated chassis connection (1.5), which ensures the connection of the tab cutting unit (1) to the chassis; the insulation member (1.2) around the cutter group (1.1) which ensures insulation and a smooth cut; referencing module (1.6) for referencing the battery fixture.
Resumen de: WO2025144338A1
The present invention relates to a system (1) which enables the starting of heat propagation and the cell at the starting position to be detected by continuously measuring the voltage values on the battery (2) pack when predetermined conditions are met.
Resumen de: WO2025144284A1
The invention relates to the high-efficiency synthesis of ZIF-11 or ZIF-12 or Amorphous-ZIF structures (single or multi-metal) derivatives, followed by their calcination with sulfur under inert conditions to synthesize metal sulfide in a composite nanostructure, either dispersed or embedded on a wide carbon surface, and the use of these composite nanomaterials as electrodes in Li-ion batteries, Li-S batteries, Na-ion batteries, K-ion batteries, supercapacitors, and fuel cells.
Resumen de: WO2025143638A1
The present invention relates to a beading device for a cylindrical battery, the beading device additionally including a position measurement device. The beading device comprises: a beading knife that forms a beading portion on one side of a cylindrical can; a backup roller that supports the cylindrical can from the other side of the cylindrical can while the beading knife is forming the beading portion on the cylindrical can; individual beading units including an upper CFB and a lower CFB having bearing structures and disposed in the upper and lower portions, respectively; and a cam structure in which one or more of the individual beading units are arranged in a circle and rotated about the central axis of the circle, wherein the beading device additionally includes the position measurement device for measuring the position of at least one of the beading knife, the backup roller, or the upper CFB and the lower CFB.
Resumen de: WO2025143595A2
An electrode assembly manufacturing apparatus comprises: a separator winding roll in which two or more layers of separators are stacked and wound; a separator supply unit for individually separating the two or more layers of separators from the separator winding roll and supplying same; a first electrode supply unit for supplying a first electrode; a second electrode supply unit for supplying a second electrode; and a winding unit for stacking and winding the individually separated separators between the first electrode and the second electrode and on one outer side of the first electrode or the second electrode.
Resumen de: WO2025143587A1
Provided is a rotary-type can beading apparatus capable of automatically correcting the height of a head. The rotary-type can beading apparatus comprises: a rotary; a plurality of arms which are arranged along the circumference of the rotary so as to rotate along with the rotary, and which extend in the radial direction; a head which is rotatably installed on each of the arms and is installed so as to be slidable in the axial direction; a beading knife which is installed on each of the arms so as to be movable in the direction moving close toward the rotation axis or moving away therefrom; a support roller which is arranged so as to face the beading knife with the rotation axis therebetween; a first rail cam which is provided with a first height profile extending in the circumferential direction with respect to the central axis; and a first cam follower which is raised along with the head and adjusts the height of the head by following the first height profile. The height of the first rail cam is adjusted by the operation of a first servo motor.
Resumen de: WO2025143804A1
The present invention relates to: an organic phosphoric acid extractant capable of selectively separating and recovering manganese (Mn) from a metal mixture derived from waste secondary batteries; and a method for selectively separating and recovering manganese (Mn) using the organic phosphoric acid extractant. The present invention uses an organic phosphoric acid extractant including organic phosphoric acids of di-octylphosphate (DOPOA) and/or di-decylphosphate (DDPOA), and thus has the advantage of being able to effectively separate and recover manganese from black mass which is a mixture of metals, such as lithium, manganese, cobalt, and nickel, generated from waste secondary batteries.
Resumen de: WO2025143725A1
The present invention relates to a lithium secondary battery comprising: a cathode comprising a cathode active material layer including a single particle-type cathode active material, a cathode conductive material, a cathode binder and a cathode dispersant; an anode; and an electrolyte, wherein: the anode comprises a first anode active material layer and a second anode active material layer formed on the first anode active material layer, each of the first anode active material and the second anode active material independently including natural graphite, artificial graphite or a combination thereof; the ratio of the amount of a first anode binder to the amount of a second anode binder is 1.5-3.0; the difference in porosity between the cathode and the anode is 4.2-9.8%; and the FBR of the cathode, which is associated with the amounts and true density values of each of the binder and dispersant and the average particle diameter of the cathode active material, is 30-180.
Resumen de: WO2025138598A1
The present invention belongs to the technical field of tools for battery production, and specifically relates to a positioning apparatus for assembly of a battery housing. A positioning apparatus for assembly of a battery housing is provided, which, by means of arranging a debris blocking frame unit, torsion spring rotating plate units, a fixing frame unit, and a standby state brush body unit on a slotted bottom plate unit allows for: 1. after the apparatus is externally connected to a fan, assembly debris that is primarily located between two torsion spring rotating plate units can be simply, quickly, and inexpensively blown into the slotted bottom plate unit, providing a clean operating environment for assembly of a battery housing; 2. the two torsion spring rotating plate units and the fixing frame unit together can adequately and properly grab and position a housing; and 3. the standby state brush body unit can sweep debris and can also pull and fix the torsion spring rotating plate units, allowing the apparatus to have a stable standby state.
Resumen de: WO2025138546A1
An electrode sheet, a battery, and an electrode sheet processing method. The electrode sheet comprises a current collector, an active layer, and a first insulating layer. The first insulating layer and the active layer are both coated on a first surface of the current collector, and the first insulating layer comprises a first insulating portion and a second insulating portion. The first insulating portion has a first side edge and a second side edge which are oppositely arranged, the first side edge abuts against the active layer, and the second side edge abuts against the second insulating portion. The second insulating portion is used for cutting processing. Since the first insulating portion is arranged between the second insulating portion and the active layer, and a second thickness b of the second insulating portion is greater than a first thickness a of the first insulating portion, the second insulating portion has a larger thickness, and after cutting, the second insulating portion can effectively improve the compatibility of the insulating layer with burrs formed on a cut surface, thereby reducing the risk of the burrs piercing a separator.
Resumen de: WO2025144337A1
The present invention relates to a system (1) which enables the cell (2) energy to be cut off and the user to be warned by enabling early detection of heat propagation and heat runaway by using real-time monitored data on lithium-based batteries.
Resumen de: WO2025144330A1
The present invention relates to a system (1) which stores the mechanical energy resulting from the expansion and contraction generated during the use of the battery cells (2.2) of a foam (3) made of magnetostrictive material included in a lithium-based battery pack (2) on the battery by converting it into electrical energy.
Resumen de: WO2025144333A1
The present invention relates to a system (1) which enables the pressure generated due to the expansion of the cell during the use of the battery (2) to be measured by homogeneously integrating nanotubes into the foam placed on the cell in lithium-based batteries (2).
Resumen de: WO2025144332A1
The present invention relates to a battery cell (1) for reducing the pressure inside and lowering the temperature of lithium batteries in order to slow down and/or prevent thermal runaway and/or propagation during their use.
Resumen de: WO2025144329A1
The present invention relates to a foam (3) which dampens the expansion of the cells (2.2) included in a lithium-based battery pack (2) during their use, and to a safe and environmentally friendly system which enables the physical stress generated on the foam (3) during the expansion of the cells (2.2) to be converted into electrical energy by being absorbed and the electrical energy to be stored on the battery.
Resumen de: WO2025144334A1
The present invention relates to a system (1) which enables the cell (2.1) temperatures during the use of the battery (2) to be measured by homogeneously integrating nanotubes into the foam (3) placed on the cell (2.1) in lithium-based batteries (2).
Resumen de: WO2025144283A1
Synthesis of Metal Selenide-Carbon Materials from MOF Based Materials The invention relates to the synthesis of pure or multi-metal derivatives of ZIF-11 or ZIF-12 or amorphous-ZIF structures in high yields, followed by calcination under inert conditions to produce one or more metal-selenides in composite nanostructure, dispersed on a carbon matrix surface or embedded in this matrix, and the use of these composite materials as electrodes in Li-ion batteries, Na-ion batteries, K-ion batteries, supercapacitors, or fuel cells.
Resumen de: WO2025143789A1
In relation to a tabless secondary battery to which a cylindrical electrode assembly using an end of an electrode sheet, which is not coated with an active material, as an electrode tab is applied, the present invention provides an electrode assembly structure capable of preventing the risk of short-circuiting in a core section of the electrode assembly and additionally securing a current path in the core section to reduce the amount of heat generated due to internal resistance, and a cylindrical secondary battery to which the electrode assembly is applied. The core section of the electrode sheet is provided with a plateau which protrudes outward in the axial direction beyond a cutting groove defining a division tab and extends in the longitudinal direction. The division tab is bent inward in the radial direction. While in the unbent state, the upper end of the plateau contacts and is electrically connected to the division tab.
Resumen de: WO2025143570A1
A battery according to an embodiment of the present invention may comprise: an electrode assembly including a first non-coating portion extending on a first surface thereof, wherein the first surface is configured to include a first region covered by the first non-coating portion and a second region not covered by the first non-coating portion; a battery housing configured to accommodate the electrode assembly through an opening formed on one side of the battery housing; and a current collector which is disposed on the first surface of the electrode assembly to be configured to be electrically connected to the electrode assembly, and has a current collector opening portion formed in a region of the electrode assembly, the region corresponding to the second region of the electrode assembly.
Resumen de: WO2025143571A1
A battery according to an embodiment of the present invention may comprise: an electrode assembly having a wound structure around the winding center hole thereof; a battery housing configured to accommodate the electrode assembly through an opening provided at one side thereof; a battery cover configured to cover the opening of the battery housing and provided with a venting part which is configured to be broken when the internal pressure of the battery housing exceeds a reference venting pressure; and a core support inserted into the winding center hole of the electrode assembly to increase the rigidity of the core part of the electrode assembly, and configured to guide the discharge direction of gas generated inside the electrode assembly toward the venting part.
Resumen de: WO2025143711A1
The present application relates to an anode active material, an anode composition, a lithium secondary battery anode comprising same, and a lithium secondary battery comprising the anode.
Resumen de: WO2025143790A1
The present invention relates to a copolymer, an anode slurry comprising same, an anode and a secondary battery, the copolymer comprising, on the basis of 100 mol% of the total weight of the copolymer, 65-99 mol% of an acrylic acid-based monomer unit or a combination of an acrylate-based monomer unit and an acrylic acid-based monomer unit and 1-35 mol% of a vinyl alcohol-based monomer unit or a combination of a vinyl acetate-based monomer unit and a vinyl alcohol-based monomer unit, and having a number average molecular weight of 150,000-230,000.
Resumen de: WO2025138541A1
The present application discloses a lithium iron phosphate material, a preparation method therefor and a use thereof. The preparation method comprises: mixing a first carbon source, a second carbon source, a lithium source, iron phosphate, and doping agents, and sintering the mixture to obtain the lithium iron phosphate material, wherein the molar ratio of lithium in the lithium source to the iron phosphate is A, the mass ratio of the first carbon source to the iron phosphate is B, the mass ratio of the second carbon source to the iron phosphate is C, the molar ratio of iron to phosphorus in the iron phosphate is D, the doping amount of a first doping agent is E1, the doping amount of a second doping agent is E2, and the doping amount of a third doping agent is E3; E1, E2, and E3 satisfy that J=6×E1/(5×E2+5×E3); and A, B, C, D, and J satisfy that 0.040≤A2×D2×(B+C)×J≤0.058. According to the preparation method of the present application, a lithium iron phosphate material having excellent performance is obtained by controlling a plurality of factors to satisfy specific relational expressions and exerting a synergistic effect of the factors.
Resumen de: WO2025138544A1
Disclosed in the present application are a connecting unit, a busbar, and a battery module. The connecting unit is configured to connect battery cells, the battery cells comprising at least a first battery cell and a second battery cell. The connecting unit comprises: a first positive electrode connecting portion, which is configured to be detachably connected to a positive electrode of the first battery cell and is electrically connected to the positive electrode of the first battery cell; and a first negative electrode connecting portion, which is configured to be detachably connected to a negative electrode of the second battery cell and is electrically connected to the negative electrode of the second battery cell, wherein the first negative electrode connecting portion is connected to the first positive electrode connecting portion.
Resumen de: WO2025143704A1
The present invention provides a method for manufacturing a positive electrode, comprising the steps of: preparing a positive electrode slurry comprising a positive electrode active material comprising lithium iron phosphate particles in the form of secondary particles in which a plurality of primary particles are aggregated; coating the positive electrode slurry onto a positive electrode current collector; and forming a positive electrode active material layer by rolling the coated positive electrode slurry, wherein the particle breaking strength of the lithium iron phosphate particles in the form of secondary particles is 4kgf/mm2 to 20kgf/mm2, and the ratio of the surface roughness Rz1 of the positive electrode current collector before rolling to the surface roughness Rz2 of the positive electrode current collector after rolling is 0.5 or less.
Resumen de: WO2025143573A1
An insert device according to an embodiment of the present invention is an insert device for inserting an electrode assembly unit, including an electrode assembly and a first current collector coupled to one surface of the electrode assembly, into a battery can, and comprises: a can holder for holding the battery can; a lower stopper that supports the electrode assembly unit from below and can move in a direction parallel to the central axis of the electrode assembly unit; and an air blower that is provided in the lower stopper and can inject air into the electrode assembly unit in the direction of the battery can.
Resumen de: WO2025138691A1
Disclosed in the present application are a metal foil, a circuit board, a copper-clad laminate, a negative-electrode material of a battery, and a battery. The metal foil comprises a first surface and a second surface opposite each other, wherein there are several protrusions on the second surface, and the protrusions include first-type protrusions and second-type protrusions; a ratio a of the maximum width to maximum vertical height of the first-type protrusions satisfies 1≤a≤4, and the first-type protrusions account for 50-90% of all the protrusions; and a ratio b of the maximum width to maximum vertical height of the second-type protrusions satisfies 1/5≤b≤1/3, and the second-type protrusions account for 10-70% of all the protrusions. In the metal foil, circuit board, copper-clad laminate, negative-electrode material of a battery, and battery provided in the embodiments of the present application, the proportion of spiky protrusions is reduced, the overall height of the protrusions is reduced, and the content of gently undulating protrusions is increased, thereby reducing the high-frequency transmission signal loss caused by a skin effect on the circuit board, effectively improving the quality of the metal foil, and guaranteeing the electrical performance of the circuit board.
Resumen de: WO2025138842A1
A battery pin, a secondary battery, and a battery mounting apparatus. A first connecting section (20) in the battery pin is disposed on a top cover and is connected to a pole; a second connecting section (30) is connected to the first connecting section (20) and is provided with a first slot (310) and a connecting part (320); a first tab part (120) is penetratingly disposed in the first slot (310), and the connecting part (320) is connected to a second tab part (130). A preset included angle is formed between the first connecting section (20) and the second connecting section (30), and when the first slot (310) passes through the first tab part (120), the connecting part (320) is located between a side surface of a cell package (10) and the second tab part (130).
Resumen de: WO2025138797A1
A battery pack connector and a battery pack. The battery pack connector is configured to electrically connect a battery module inside the battery pack to an electric device outside the battery pack, and comprises an insulating base (100) and a connection portion (200). A first through hole (110) is provided in the insulating base (100), the connection portion (200) is embedded in the first through hole (110) and is fixed to the insulating base (100), and two ends of the connection portion (200) extend beyond the insulating base (100).
Resumen de: WO2025144282A1
The invention relates to the high-efficiency synthesis of pure or multi-metallic derivatives of ZIF-11 or ZIF-12 or Amorph-ZIF structures, and subsequently the production of composite nano-structured materials with nano metal particles dispersed or embedded on a wide carbon surface through calcination under inert conditions, and the use of these composite nanomaterials as electrodes in Li-ion batteries, Li-S batteries, Na-ion batteries, K-ion batteries, supercapacitors, and fuel cells.
Resumen de: WO2025143568A1
An electrode assembly according to the present invention includes: a winding center hole and an outer circumferential surface that are formed by winding a stack, including a first electrode, a second electrode, and a separator interposed therebetween, around a winding axis; and a fixing member covering at least a portion of the outer circumferential surface along the circumferential direction of the outer circumferential surface.
Resumen de: WO2025143561A1
A method and an apparatus for analyzing a battery are disclosed. The battery analysis apparatus applies multiple AC signals having different frequencies to a battery so as to identify impedance for each frequency, identifies a temperature of a place in which a battery impedance is measured, and inputs a tensor including the impedance for each frequency and the temperature to an artificial intelligence model so as to identify whether the battery is defective.
Resumen de: WO2025143806A1
A laser welding jig according to the present invention is applied to a battery cell assembly including a plurality of stacked battery cells and a side frame covering at least a portion of the plurality of battery cells, in which two adjacent leads are bent and welded, and the laser welding jig comprises: a pallet configured to allow the battery cell assembly to be seated thereon; and a protective jig arranged between the two adjacent leads.
Resumen de: WO2025143440A1
Disclosed are: a photocurable 3D printing composition, which is applied to a 3D printer to output a three-dimensional molded product; and a method for manufacturing a molded product with improved thermal stability by using same.
Resumen de: WO2025143430A1
Disclosed are a cylindrical battery cell inspection device and a cylindrical battery cell produced using same, and a battery pack and a vehicle, comprising the cylindrical battery cell. The cylindrical battery cell inspection device according to an embodiment of the present invention includes: a body member in which a cylindrical battery cell moves; a plurality of mirror members coupled to the body member and reflecting again the light reflected from the inspection position of the cylindrical battery cell; and a photographing member photographing the cylindrical battery cell by the light reflected from the mirror members.
Resumen de: WO2025143425A1
The present invention relates to an all-solid-state battery comprising: an electrode comprising a current collector layer and an active material layer; a solid electrolyte layer; a first conductive layer between the current collector layer and the active material layer; and a second conductive layer between the active material layer and the solid electrolyte layer. An all-solid-state battery according to one embodiment includes both the first conductive layer and the second conductive layer, and thus ion and electron transfer efficiency is enhanced and an increase in resistance following a battery cycle is mitigated.
Resumen de: WO2025143552A1
This electrode for a secondary battery comprises: a current collector; and an active material layer disposed on the current collector and including active material particles. The active material layer includes a surface layer and an intermediate layer disposed between the surface layer and the current collector and including lithium manganese phosphate iron. The intermediate layer includes at least a first intermediate layer adjacent to the current collector and a second intermediate layer disposed between the first intermediate layer and the surface layer and having a different particle diameter and a different composition from the first intermediate layer. The particle diameter of the active material particles of the first intermediate layer is 500 nm to 2,000 nm, and the manganese/iron ratio is 1 to 20. The particle diameter of the active material particles of the second intermediate layer is 100 nm to 500 nm, and the manganese/iron ratio is 0.05 to 1. The particle diameter of the active material particles of the surface layer is 10 nm to 200 nm, is smaller than the particle diameter of the active material particles of the second intermediate layer, and includes lithium iron phosphate.
Resumen de: WO2025143517A1
The present invention relates to a method for manufacturing an electrode material for a secondary battery, wherein the surface of a thin metal plate made of a material selected from among nickel (Ni), a nickel-chromium alloy (Ni-Cr), a nickel-tin alloy (Ni-Sn), copper (Cu), and aluminum (Al), or a thin-plate porous metal body manufactured using said material to have a sponge structure, is sequentially plated with at least two metals selected from among nickel (Ni), zinc (Zn), tin (Sn), gold (Au), silver (Ag), copper (Cu), indium (In), bismuth (Bi), antimony (Sb), and an indium-antimony alloy (In-Sb), an alloy layer in which each of the plating metals is uniformly mixed is formed by a thermomigration treatment, an electromigration treatment, or a combination of the two treatments, and then the surface of the alloy layer is coated with a current collector made of a sulfur powder and a carbon powder (conductive material) or a sulfur powder, a carbon powder, and a metal powder (sulfur host).
Resumen de: WO2025143526A1
Disclosed are: a bus bar assembly including a temperature sensor mechanism which detects a fire of a battery pack of an electric vehicle in advance and then informs the fire; and a battery pack including same. A bus bar assembly including a temperature sensor mechanism according to an embodiment includes: a housing which has an upper surface the entire of which is open, a lower surface both ends of which are open, and seat plates respectively provided at both sides therein; a bus bar accommodated between the lower surface of the housing and the seat plates; a circuit board which has both ends respectively seated on the seat plates and is provided with a temperature sensor mechanism; a connector connected to the circuit board so as to transmit the temperature detected by the temperature sensor mechanism to the outside; and a cover covering the upper surface of the housing.
Resumen de: WO2025143509A1
The present invention relates to a surface-modified carbon nanotube having both excellent conductivity and improved dispersibility, and a dispersion and a secondary battery, which comprise same.
Resumen de: WO2025143422A1
A battery according to an embodiment disclosed in the present document may comprise: a first measurement unit for measuring a first voltage which is the voltage between a first bus bar connecting a first battery cell and a second battery cell and a second bus bar connecting a third battery cell and a fourth battery cell and transferring the first voltage to a management unit; a second measurement unit for measuring a second voltage which is the voltage between a third bus bar connecting the second battery cell and the third battery cell and a fourth bus bar connecting the fourth battery cell and a fifth battery cell and transferring the second voltage to the management unit; and the management unit for calculating the voltage of the third battery cell by performing a mathematical operation for the first voltage and the second voltage.
Resumen de: WO2025143447A1
Disclosed is a gel polymer electrolyte for a lithium battery comprising a gel polymer and a liquid electrolyte, the liquid electrolyte comprising lithium salt and an organic solvent, and the gel polymer being a cross-linked product of i) a multifunctional acryl-based first polymerizable monomer having at least three polymerizable functional groups and ii) a second polymerizable monomer selected from urethane acryl-based monomers having at least two functional groups.
Resumen de: WO2025143491A1
An anode for a lithium secondary battery according to an embodiment of the present disclosure includes: an anode current collector: a first anode mixture layer formed on at least one surface of the anode current collector and containing a first carbon-based active material; and a second anode mixture layer formed on the first anode mixture layer and containing a second carbon-based active material and a silicon-based active material, wherein the first anode mixture layer has a Raman R value according to equation 1, which is smaller than that of the second anode mixture layer. Equation 1 Raman R = ID / IG (where, ID represents the peak intensity value in the absorption region of 1350 to 1380 cm-1 , and IG represents the peak intensity value in the absorption region of 1580 to 1600 cm-1)
Resumen de: WO2025143477A1
A battery module according to one embodiment of the present invention comprises: a battery cell stack in which a plurality of battery cells are stacked; a module case for accommodating the battery cell stack; a bus bar frame arranged at one side of the battery cell stack; one or more bus bars arranged on the bus bar frame; and a pad arranged at the bus bar. In the battery module according to one embodiment of the present invention, the pad coupled to the bus bar is compressed and the bus bar moves to relieve the tension of an electrode lead when the battery cell swells, and thus the electrode tab can be prevented from fracturing.
Resumen de: WO2025143407A1
Disclosed are a positive electrode and an all-solid-state secondary battery comprising same, the positive electrode comprising a positive electrode current collector, a positive electrode active material layer, and a protecting layer that is on the positive electrode active material layer, wherein: the protecting layer comprises an oxide-based positive electrode active material and a first sulfide-based solid electrolyte; the positive electrode active material layer comprises a sulfide-based composite positive electrode active material and a second sulfide-based solid electrolyte; the composite positive electrode active material comprises Li2S and a composite of a first ionic compound and a first carbon-based material; and the oxide-based positive electrode active material has an olivine structure or a spinel structure.
Resumen de: WO2025143349A1
The present invention relates to a universal battery management method and system. The universal battery management method comprises the steps of: sensing the voltages of battery cells and the number of serial/parallel connections; measuring the voltages of the battery cells according to charging capacity; calculating the slope of the voltage of the battery cells according to the charging capacity; and specifying the type of each of the battery cells.
Resumen de: WO2025143390A1
An all-solid-state battery includes: a solid electrolyte layer, a positive electrode layer and a negative electrode layer facing each other with the solid electrolyte layer therebetween, a first external electrode connected to the positive electrode layer, a second external electrode connected to the negative electrode layer, and a positive electrode margin unit disposed between the positive electrode layer and the second external electrode. The positive electrode margin unit includes a main layer and an auxiliary layer having a shrinkage rate lower than that of the main layer.
Resumen de: WO2025143371A1
An all-solid secondary battery according to an embodiment comprises: an all-solid cell comprising a positive electrode, a negative electrode, and a solid electrolyte layer; an all-solid case in which the all-solid cell is accommodated; a pair of fluid-accommodating members in which fluid for pressurizing the all-solid cell is accommodated and which are in contact with the inner surface of the all-solid case; inflow and outflow valves allowing the fluid in the fluid-accommodating members to flow in and out; and a fluid supply unit connected to the inflow and outflow valves and supplying the fluid to the fluid-accommodating members.
Resumen de: WO2025143136A1
Provided is a polymer composition for an electrochemical element, the polymer composition comprising: a polymer including an aliphatic hydrocarbon unit and a nitrile group-containing unit; and an amide-based liquid medium, wherein the polymer has a tan δ (loss tangent) of greater than 1 at 0.01-10% strain in dynamic viscoelasticity measurement at a temperature of 100°C and a frequency of 10 Hz.
Resumen de: WO2025143111A1
A disclosed cylindrical lithium primary battery (100) includes: an electrode group (10) in which a positive electrode (1), a negative electrode (2), and a separator (3) are wound; a short-circuit metal sheet (21) disposed on the negative electrode (1); and a battery case that accommodates the electrode group (10) and functions as a negative electrode terminal. The positive electrode (1) includes: a positive electrode current collector having a plurality of through holes; and a positive electrode mixture layer disposed on the positive electrode current collector. The positive electrode has a current collector exposed part (1c) where a part of the positive electrode current collector is exposed. The negative electrode (2) includes a lithium-containing metal sheet. The short-circuit metal sheet (21) contains at least one metal element M selected from the group consisting of copper, iron, nickel, and zinc. At least a part of the short-circuit metal sheet (21) and at least a part of the current collector exposed part (1c) face each other across the separator (3). The short-circuit metal sheet (21) is electrically connected to the battery case not through the lithium-containing metal sheet.
Resumen de: WO2025143375A1
Disclosed are an electrode assembly and a rechargeable battery comprising same. The electrode assembly according to one embodiment is an electrode assembly in which a plurality of electrode plates are wound with separators interposed therebetween. The outermost electrode plate among the plurality of electrode plates comprises: a penetration part located near an end portion of the outermost electrode plate; and a close contact part of which a peripheral portion is cut so as to protrude from the outermost electrode plate, and the portion is folded to be in close contact with the periphery of the penetration part in a state in which the close contact part has penetrated the penetration part.
Resumen de: WO2025143361A1
The present disclosure relates to an activation apparatus, and the technical problem to be solved is to provide a secondary battery which has a stable structure and/or film and of which lifespan characteristics is improved by applying an activation process. To this end, the present disclosure provides an activation apparatus comprising: a chamber in which a secondary battery is accommodated; and an activation unit which charges the secondary battery accommodated in the chamber to a first potential or discharges the secondary battery.
Resumen de: WO2025143206A1
Provided is a battery system comprising: a battery pack having a thickness that changes due to charging and discharging; and a restraining member for restraining the battery pack, the restraining member having a configuration such that, if the pressure applied to the battery pack by the restraining member exceeds a predetermined pressure, because of a change in thickness due to charging and discharging of the battery pack, the restraining member becomes damaged and the restraint of the battery pack is released. The restraining member may restrain the battery pack by means of two plate-like members sandwiching the battery pack along the direction of the thickness.
Resumen de: WO2025143296A1
The present invention relates to a ceramic assembly comprising: a solid electrolyte made of a ceramic material; a polyolefin-based polymer sealant; a metal support; and a metal layer deposited on a ceramic surface at a bonding interface between the ceramic solid electrolyte and the polyolefin-based polymer sealant.
Resumen de: WO2025143146A1
This electricity storage device comprises: an electrode body (14) in which a first electrode plate and a second electrode plate are wound with a separator interposed therebetween; and an exterior body (15) that accommodates the electrode body. The first electrode plate has a first core body and a first mixture layer formed on the surface of a first core body. First exposed portions where the first core body is exposed are disposed at one side end portion of the electrode body in the winding axis direction. Each first exposed portion has a folded portion obtained by folding back one or more times and folding so as to overlap. The folded portions are tilted in a first direction, and the folded portions of the adjacent circumferential portions of the first electrode plate overlap. A current collecting portion is formed at the one side end portion in the winding axis direction.
Resumen de: WO2025139715A1
Disclosed in the present application are an energy storage device and an energy storage system comprising same. The energy storage device comprises a battery, a cabinet, an air conditioner and a magnetic sealing member, wherein the cabinet comprises a cabinet door and a cabinet body, one side of the cabinet body being open, the cabinet door being arranged on the open side of the cabinet body, the cabinet body and the cabinet door jointly defining an accommodating cavity, the accommodating cavity accommodating the battery, and an opening being formed in the cabinet door; the air conditioner is arranged in the accommodating cavity, and the air conditioner is arranged opposite the opening; and the magnetic sealing member is arranged around the periphery of the opening, so as to seal a gap between the cabinet door and the air conditioner. The energy storage device provided in the present application can prevent a water body outside the cabinet from entering the air conditioner along a gap between the air conditioner and the cabinet, thereby improving the waterproofness of the air conditioner; and the manner of connection between the magnetic sealing member and the air conditioner is simple, thereby facilitating operation.
Resumen de: WO2025139713A1
Provided are a pre-lithiation assembly, and a corresponding positive electrode, secondary battery and electrical device. The pre-lithiation assembly comprises a current collector and a pre-lithiation layer arranged on the surface of at least one side of the current collector; after delithiation of the pre-lithiation layer, the room temperature resistivity of the pre-lithiation assembly is 2 Ω·m-2000 Ω·m. The pre-lithiation assembly not only has a pre-lithiation effect, but also can maintain a lower resistivity after delithiation of the pre-lithiation layer, thus improving the energy density of batteries while ensuring the rate capability of the batteries.
Resumen de: WO2025139728A1
Provided in the present application are a secondary battery and a preparation method therefor. The outermost electrode plate of an electrode assembly is a first outer electrode plate, wherein the first outer electrode plate comprises a first current collector and a first active material layer, the first current collector having a first surface facing a first direction and a second surface facing a second direction, and the first active material layer being arranged on the second surface. The first direction is a stacking direction of electrode plates and separators of the electrode assembly, and the second direction is opposite to the first direction. The secondary battery further comprises a plurality of first adhesive layers, part of each first adhesive layer being bonded between the first surface and an inner wall of an accommodating portion, and the other part of the first adhesive layer being bonded to the first surface and at least part of a separator. By means of providing the first adhesive layers, the shrinkage of the separators can be reduced, and drop resistance of the secondary battery can be improved.
Resumen de: WO2025139698A1
A lithium ion battery. The lithium ion battery comprises a positive electrode sheet and an electrolyte; the electrolyte comprises a first additive having a mass content of a%; the first additive comprises a cyano group and a group represented by formula (i) and/or formula (ii); the positive electrode sheet comprises a positive electrode current collector having a tensile strength of L MPa; a and L satisfy 0.05≤100×a/L≤5.The lithium ion battery has good high-temperature cycling stability and a long service life.
Resumen de: WO2025143011A1
A first electrode of a non-aqueous electrolyte secondary battery according to the present disclosure has a current collector and a mixture layer formed on the surface of the current collector. An exposed portion in which the current collector is exposed is formed on the surface of the first electrode. The exposed portion is in contact with only one end portion of both end portions in the lateral direction of the first electrode, and an electrode tab is connected to the exposed portion and led out from one end portion. The mixture layer contains an active material, granular carbon, and fibrous carbon. When the mixture layer is divided into a first mixture layer aligned with the exposed portion in the longitudinal direction of the first electrode and a second mixture layer adjacent to the exposed portion and the first mixture layer in the lateral direction of the first electrode, the first mixture layer contains granular carbon, and the second mixture layer contains fibrous carbon. The content of fibrous carbon in the first mixture layer is 0.1 mass % or less, and the content of the fibrous carbon in the second mixture layer is higher than the content of the fibrous carbon in the first mixture layer.
Resumen de: WO2025142954A1
The present invention provides a cylindrical lithium-ion secondary battery having a positive electrode plate that constitutes an electrode body. The positive electrode plate has a positive electrode mixture layer formed on the surface of a positive electrode core, a positive electrode tab bonded to an exposed surface formed on only one side, in the electrode plate transverse direction, of at least a part of the positive electrode plate in the electrode plate longitudinal direction, and an insulating tape applied to the positive electrode plate to cover the exposed surface. The positive electrode mixture layer includes a raised part with a maximum thickness that is 10% or more greater than the average thickness of the positive electrode core in the vicinity of a first exposed end of the exposed surface in the electrode plate longitudinal direction. The insulating tape covers the exposed surface and a portion of the raised part beyond a maximum thickness position M in the electrode plate longitudinal direction, the portion beyond the maximum thickness position going farther beyond the position where the thickness is less than 1.05 times the average thickness of the positive electrode mixture layer.
Resumen de: WO2025140134A1
The application discloses an electrochemical apparatus, a battery pack and an electric device. The electrochemical device comprises a housing and an electrode assembly accommodated in the housing. The electrode assembly comprises a first pole piece, a second pole piece and a separator. The first pole piece, the separator and the second pole piece are stacked and wound in a winding direction. One of the first pole piece and the second pole piece is a positive pole piece, and the other one is a negative pole piece. The negative pole piece comprises a negative electrode current collector and a negative electrode active substance. The negative electrode active substance is arranged on the negative electrode current collector. The negative electrode active substance comprises artificial graphite and/or natural graphite. The electrochemical apparatus has high charging capacity in a constant-current charging operation stage, which is beneficial to improving the charging efficiency and shortening the charging time.
Resumen de: WO2025139745A1
The present invention relates to the technical field of batteries, and in particular to a battery. The battery comprises an electrolyte and a positive electrode sheet, the electrolyte comprises an ether nitrile compound, and the ether nitrile compound comprises a compound having the structure of NC-M1-O-M2; M2 is selected from -CN or a group comprising -O-N1-CN, and M1 and N1 are each independently selected from C1-C9 alkyl, C2-C9 alkenyl, C2-C9 alkynyl, and C2-C9 ether; based on the total weight of the electrolyte, the weight content of the ether nitrile compound is Awt%; the positive electrode sheet comprises a lithium cobalt oxide material and a carbon nanotube; and the median particle size Dv50 of the lithium cobalt oxide material is C, the unit of the median particle size Dv50 is μm, the diameter of the carbon nanotube is L, the unit of the diameter is nm, and the battery meets the condition: 0.25≤(A/(C+L))×100≤25. The battery has high cycle stability and good high-temperature storage performance.
Resumen de: WO2025139721A1
A cabinet (100), an energy storage apparatus (300), an energy storage system (400), and an electrical device, relating to the technical field of energy storage apparatuses (300). The cabinet (100) comprises a cabinet body (10), a cabinet door (20) and a pressure relief structure. The cabinet door (20) is connected to the cabinet body (10). The cabinet body (10) and the cabinet door (20) jointly define an accommodating cavity (16). The accommodating cavity (16) is suitable for accommodating a battery (200). The pressure relief structure is arranged on the cabinet door (20) and/or the cabinet body (10). When a thermal management parameter of the accommodating cavity (16) exceeds a first threshold, the pressure relief structure relieves the pressure, and when the thermal management parameter of the accommodating cavity (16) exceeds a second threshold, the cabinet door (20) relieves the pressure, the first threshold being less than the second threshold. By means of the configuration in which the cabinet (100) comprises the cabinet body (10), the cabinet door (20) and the pressure relief structure, the cabinet door (20) is connected to the cabinet body (10), the pressure relief structure is connected to the cabinet door (20) and/or the cabinet body (10), the pressure relief structure relieves the pressure when the thermal management parameter of the cabinet body (100) exceeds the first threshold, and the cabinet door (20) relieves the pressure when the thermal management parameter
Resumen de: WO2025139153A1
A charging/discharging current determination method and charging/discharging current determination apparatus (3000, 4000, 5200) for a battery, and a storage medium and a battery management system (5000). The method comprises: during charging/discharging of a battery, acquiring an actually measured current value of a charging/discharging loop, which value is output by a first current sensor (5100) (S1100); on the basis of the actually measured current value and a preset relationship table, determining a current compensation value corresponding to the actually measured current value, wherein the preset relationship table is used for representing correspondences between current values and current compensation values (S1200); and on the basis of the actually measured current value and the current compensation value corresponding to the actually measured current value, determining a target current value for the charging/discharging loop (S1300).
Resumen de: WO2025139147A1
A battery separator, a battery and an electrical device. The separator comprises a substrate layer and bonding particles dispersed within the substrate layer, the bonding particles being exposed from the outer surface of at least one side of the substrate layer in the thickness direction. The bonding particles are distributed within the substrate layer of the separator, and, when the separator is applied to a battery, the portions of the bonding particles exposed from the substrate layer can bond the separator to an electrode sheet; and the substrate layer can be prepared simply by means of single-pass coating, thus reducing process steps and reducing the separator production cost. In addition, the separator having the described structure can reduce the risk of bubble generation at the interface between the separator and an electrode sheet during a battery formation process, so as to improve the structural stability of battery cells, thus helping to ensure better performance of batteries.
Resumen de: WO2025139155A1
An electrode sheet, a battery cell, and a battery. The electrode sheet comprises a current collector, a first active material layer, and a second active material layer. In an X direction, the current collector comprises a first surface and a second surface. The first active material layer is disposed on the first surface, the first active material layer comprises a first region and a second region which are arranged in a Y direction, and the second region is adjacent to the first region. The second active material layer is disposed on the second surface, and the second active material layer and the first active material layer of the first region are oppositely arranged on the current collector in the X direction. The second region is provided with a concave part. The described electrode sheet solves the problem of the energy density of a battery cell being seriously affected due to a single-surface region of the electrode sheet having high lithium ion embedding and disengaging resistance.
Resumen de: WO2025139141A1
A sealing structure (30), an energy storage cabinet (10), and an energy storage system (101). A cabinet door (100) of the energy storage cabinet (10) is provided with an opening (110), and the position of the opening (110) is configured to be arranged opposite to a heat exchange portion (300) of a temperature control device (20). The sealing structure (30) comprises a magnetic sealing member (500) configured in an annular shape, and the magnetic sealing member (500) is configured to be disposed around the opening (110) and to seal a gap between the cabinet door (100) and the temperature control device (20).
Resumen de: WO2025145031A1
Disclosed herein is a novel system to improve the cycle life of a rechargeable battery utilizing a particular cellulose-based separator within such a cell and a charging procedure thereof such a cell at a rate of less than 1 hour and at a charging voltage in excess of 4.2 volts. With such a separator and charging methodology, such a rechargeable battery utilizes the capability of reducing moisture within tire cell and further plating potential of lithium on the anode thereof. In such a manner, the cycle life of such a battery may be lowered, allowing for faster charging and longer charge retention for the battery and thus the subject device utilized. The overall system utilizing such a methodology as well as tire specific battery exhibiting such improved cycle life capabilities and retained charge over time are thus encompassed within this disclosure.
Resumen de: WO2025144641A1
A recycling and enhancement process for graphite from a Li-ion recycling stream includes pitch coating for enhancing tap density and BET surface area compared to virgin materials and commercial graphite, and provide similar, if not greater performance. A multi-step pitch coating process includes two or more pitch coating stages at different temperatures. A first pitch mixing and coating at a lower temperature is followed by a second pitch mixing and coating at a higher temperature, which results in a pitch coated purified graphite having improved surface characteristics over recycled graphite and comparable or better properties compared to virgin (non-recycled) graphite.
Resumen de: WO2025144739A1
A method for identifying and sorting batteries comprising receiving a stream of mixed batteries, spatially separating the stream of mixed batteries into a plurality of batteries, directing a non-destructive beam of neutrons at a battery of a plurality of batteries, sensing an electromagnetic signature emitted in response to the non-destructive beam of neutrons directed at the battery, analyzing the electromagnetic signature to determine a composition of the battery, and sorting the battery to a location based on the composition.
Resumen de: WO2025145155A1
A lithium-ion battery cell includes an anode including a porous lithium storage layer disposed over an anode current collector and a modification layer provided on the lithium storage layer. The cell further includes a cathode having a cathode active material layer in electrical contact with a cathode current collector and a lithium-ion-containing solid-state electrolyte (SSE) that is interposed between the lithium storage layer and the cathode active material. The lithium storage layer includes at least 40 atomic % silicon, tin, germanium, or a combination thereof. The lithium storage layer includes discontinuities defining a plurality of lithium storage layer segments each having an upper surface and a sidewall. The modification layer is disposed on the upper surface and at least partially along the sidewall.
Resumen de: WO2025145092A1
Freestanding, composite anodes include biphasic Li-Mg-X ternary alloys. The composite anodes feature improved Li-ion transport and reduced dendrite formation. Biphasic Li-Mg-X ternary alloyed anodes may be paired with iron phosphate-containing cathodes. The Li may be present in an amount from about 10 wt% to about 90 wt%. The Mg may be present in an amount from about 5 wt% to about 50 wt%. Ternary alloy component(s) may include calcium (Ca), gallium (Ga), boron (B), tin (Sn), aluminum (Al), indium (In), bismuth (Bi), antimony (Sb), tellurium (Te), carbon (C), silicon (Si), bismuth telluride (BiTe), antimony telluride (SbTe), zinc (Zn), etc., in amounts from about 1 wt% to about 90 wt%. The anodes may include lithium-ion conducting material(s): bismuth telluride (BiTe), antimony telluride (SbTe), lithium-doped tritelluride (LiTe3), lithium titanate (Li4Ti5O12, "LTO"), lithium lanthanum zirconium oxide (Li7La3Zr2O12, "LLZO"), lithium phosphide (Li3P), molybdenum oxide (MoO), molybdenum disulfide (MoS2).
Resumen de: WO2025139060A1
The present invention relates to the technical field of battery thermal management, and provides an electric drive heat dissipation-integrated battery thermal management unit. The unit comprises a housing and an electric drive heat radiator, a condenser assembly and a heat dissipation fan which are provided in the housing; the condenser assembly is located on one side of the electric drive heat radiator; the heat dissipation fan is located on the other side of the electric drive heat radiator; and air sequentially flows through the condenser assembly and the electric drive heat radiator by means of the heat dissipation fan. According to the present invention, the electric drive heat radiator, the condenser assembly and the heat dissipation fan are provided in the same housing, such that airflow generated by the heat dissipation fan sequentially flows through the condenser assembly and the electric drive heat radiator, thereby satisfying the heat dissipation requirements of both the condenser assembly and the electric drive heat radiator, and there is no need to additionally use an independent fan to perform heat dissipation on the electric drive heat radiator, thereby reducing the number of devices, achieving low costs and a high integration level, facilitating reduction of the overall size of the battery thermal management unit, and making the battery thermal management unit more miniaturized, reducing the occupied space of the whole vehicle and the weight of the whole vehic
Resumen de: WO2025138686A1
Disclosed in the present application are a metal foil, a circuit board, a copper-clad laminate, a battery negative electrode material, and a battery. The metal foil comprises a first surface and a second surface which are opposite to one another; the average grain size of the metal within an H thickness range of the metal foil is 0.1-0.8 μm, the H thickness range being the positions at 0.5-2.5 μm from the first surface in the direction of the second surface. In the metal foil, the circuit board, the copper-clad laminate, the battery negative electrode material, and the battery provided in the embodiments of the present application, a browned copper foil with an L value of 20-35 is obtained by designing the grain size of the metal foil surface; when laser drilling is performed on the copper foil, the obtained holes have smooth edges, the holes have an ideal shape, and trapezoidal or inverted trapezoidal holes do not occur, thus ensuring laser drilling quality and efficiency.
Resumen de: WO2025139142A1
A positive electrode active material, a positive electrode, a battery and a device. The positive electrode active material comprises first lithium manganese iron phosphate particles and second lithium manganese iron phosphate particles, wherein the particle size D50 of the first lithium manganese iron phosphate particles is less than the particle size D50 of the second lithium manganese iron phosphate particles; and the Mn/(Mn+Fe) molar ratio of the first lithium manganese iron phosphate particles is x, the Mn/(Mn+Fe) molar ratio of the second lithium manganese iron phosphate particles is y, and x>y.
Resumen de: WO2025142839A1
This power storage module (battery module) that accommodates a plurality of power storage devices (batteries) includes: a holder that accommodates one end side of the plurality of power storage devices to separate and hold the plurality of power storage devices from each other; a plurality of rod-shaped portions that are disposed between a pair of power storage devices among the plurality of power storage devices and extend in a first direction; and a heat radiator that is disposed on the opposite surface of the plurality of power storage devices of the holder and includes a flat plate portion to which one end of each of the plurality of rod-shaped portions is connected.
Resumen de: WO2025142816A1
A non-aqueous electrolyte secondary battery includes: an electrode body (14) in which a first electrode plate and a second electrode plate are wound via a separator; and current collector plates (17, 18) disposed on one side of the electrode body in the winding axis direction. The first electrode plate includes: a first core body made of a metal foil; a first mixture layer formed on at least a first surface of the first core body; and a first core body exposed portion in which the first core body is exposed, and which is provided at an end portion on one side in the short side direction of the electrode plate, the one side being the current collector plate side of the first surface. In a boundary region between the first mixture layer and the first core body exposed portion of the first surface, a protective layer for short circuit suppression is provided in the electrode plate longitudinal direction. The first electrode plate has an unwelded and uncoated region (39) provided in a portion including an inner peripheral-side end portion between a current collector plate welded portion (38) and the protective layer.
Resumen de: WO2025142721A1
The present invention provides a non-aqueous electrolyte secondary battery comprising an electrode body in which a positive electrode (11) and a negative electrode are wound along the lengthwise direction of the electrodes with a separator therebetween, said non-aqueous electrolyte secondary battery being characterized in that: the positive electrode (11) has a band-shaped positive electrode collector (32), positive electrode mixture layers (34) which are disposed on both surfaces of the positive electrode collector (32), and a pair of exposed portions (36a, 36b) in which both surfaces of the positive electrode collector (32) are exposed; a positive electrode tab (20) is bonded to the exposed portion (36a); a first protective film (38) which contains a resin is disposed on the positive electrode (11) so as to cover the exposed portion (36a); a second protective film (40) which contains a resin is disposed on the positive electrode (11) so as to cover the exposed portion (36b); and end-portion side surfaces (38a, 38b, 40a, 40b) of the first protective film (38) and the second protective film (40) which extend in the short direction of the positive electrode (11) are formed in a slope shape.
Resumen de: WO2025144355A1
The present invention relates to a system (1) which enables the cell (2) energy to be cut off and the user to be warned by enabling early detection of heat propagation and heat runaway by using real-time monitored data on lithium-based batteries.
Resumen de: WO2025144378A1
The invention relates to a foam insertion unit (1) between the li-ion battery pouch type cell of the invention, comprising a rotary table (1.1) feeding the serial assembly line by combining with the automation control to ensure that the foam material positioned on both sides is placed precisely along the line; holders (1.2) that enable the foam material to be grasped without shrinkage; a blowing system (1.3) that prevents the foam materials from sticking to each other; a vacuum system (1.4) that prevents more than one foam from coming while holders (1.2) release the foams and activators (1.5) that provide movement in the horizontal-vertical axis.
Resumen de: WO2025143974A1
This battery diagnosis apparatus comprises: a data acquisition unit for acquiring capacity-voltage relationship data of a battery cell; and a processor configured to generate a voltage profile and a differential voltage profile of the battery on the basis of the capacity-voltage relationship data. The processor is configured to extract a first profile of interest from the voltage profile on the basis of a feature point of the differential voltage profile. The processor is configured to determine a characteristic slope associated with the first profile of interest. The processor is configured to diagnose a degradation state of the battery cell on the basis of the characteristic slope.
Resumen de: WO2025143989A1
An apparatus for setting a charging protocol, according to one embodiment of the present invention, comprises: a profile acquisition unit for acquiring a resistance profile indicating a corresponding relationship between resistance and SOC of a battery charged at a predetermined C-rate; and a control unit configured to determine a target SOC satisfying a predetermined condition in the resistance profile, and set a charging protocol including a corresponding relationship between the predetermined C-rate and the target SOC.
Resumen de: WO2025144367A1
The present invention relates to a battery (1) which stores and supplies the energy required for the operation of electric vehicles, controls the expansion and/or contraction of the cells (2) during charging and/or discharging and/or standby by means of used piezoelectric material, and extends the service life thereof.
Resumen de: WO2025138724A1
The present application provides a cylindrical battery, comprising a plurality of positive electrode sheets and a plurality of negative electrode sheets which are alternately stacked in the height direction of the cylindrical battery. Separators are arranged between every adjacent positive and negative electrode sheets; the cylindrical battery further comprises a positive current collector pole; the positive current collector pole passes through the plurality of positive electrode sheets, the plurality of negative electrode sheets, and the plurality of separators in the axial direction of the cylindrical battery; the positive electrode sheets are all electrically connected to the positive current collector pole; the positive current collector pole is electrically connected to a top cover; and the negative electrode sheets are electrically connected to a housing.
Resumen de: WO2025138796A1
A battery pack (100) and a vehicle (200). The battery pack (100) comprises at least one first battery module (1), at least one second battery module (2), and a liquid cooling system (3), wherein the second battery module (2) and the first battery module (1) are stacked in a first direction; the liquid cooling system (3) comprises a first liquid cooling plate (31) and a second liquid cooling plate (32); the first liquid cooling plate (31) is located at one end of the first battery module (1) and is located between the first battery module (1) and the second battery module (2); and the second liquid cooling plate (32) is located at the end of the second battery module (2) distant from the first battery module (1).
Resumen de: WO2025138820A1
An early warning method for a starter battery, a storage medium and an electronic device, relating to the technical field of battery detection. The early warning method comprises: acquiring state information data of a starter battery uploaded by a vehicle battery management system, wherein the state information data comprises at least one of voltage data, current data, temperature data and charging data (S11); on the basis of the state information data, detecting whether the starter battery has an anomaly (S12); and, if the starter battery has an anomaly, sending anomaly early warning information to a manufacturer service platform for the starter battery and/or a user terminal bound to the vehicle (S13).
Resumen de: WO2025138674A1
A charging method and apparatus, a storage medium, a user equipment (800), and a vehicle. The method comprises: acquiring a charging power limit; on the basis of the acquired reservation type input by a user, in response to an operation input by the user for setting other information, generating charging related information; generating reservation information on the basis of the charging power limit, the reservation type and the charging related information; and sending the reservation information to a vehicle, so that the vehicle is charged on the basis of the reservation information. In this way, a user can set a charging power limit, a reservation type and charging related information by means of a user equipment, making it convenient for the user to specify the battery level at the end of charging, to reasonably choose on the basis of own requirements whether to make one-time reservation for charging and to select the charging start time, so that the vehicle is charged on the basis of the reservation information, and the vehicle can determine the charging end time on the basis of the charging power limit or the charging related information, thereby improving user experience.
Resumen de: WO2025138711A1
A cutting assembly, a lamination mechanism, and an electrode sheet thermal compositing device. The cutting assembly comprises at least two cutting blades, the two cutting blades are configured to have a closed state and an open state, and an electrode sheet assembly is located between the two cutting blades. The cutting assembly further comprises a thermal resistance wire which is connected to at least one of the two cutting blades, and used for providing heat to cut blank sections of the electrode sheet assembly. The lamination mechanism comprises at least two lamination platforms arranged side by side, and the cutting assembly is arranged between the lamination platforms. The electrode sheet thermal compositing device comprises the cutting assembly and the lamination mechanism. The blank sections of the electrode sheet assembly are cut by the thermal resistance wire in a melting manner, thereby solving the technical problem of continuous blank section cutting.
Resumen de: WO2025138816A1
The present application relates to the technical field of battery production, and provides a smart production line for a cylindrical cell, comprising, successively arranged in a processing direction, a cell loading station, a cathode current collector welding station, a cathode coating station, a cell in-casing station, a cathode post welding station, an anode current collector welding station, a current collector lateral welding station, a cover plate tack welding station, a cover plate seal welding station, a cell unloading station and a cell transfer mechanism. The present application reasonably distributes each processing station to more reasonably process and produce cells and, during the entire production process, the stations can cooperate with each other to efficiently complete production and effectively improve the yield and the degree of automation during the cylindrical cell processing procedures, reducing cylindrical cell production costs.
Resumen de: WO2025138763A1
A cover plate assembly (12), a battery case (10a), and a battery (10). The cover plate assembly (12) comprises: a cover plate (121), which is provided with an electrode-column mounting hole (103) and a pressure relief hole (104), wherein the electrode-column mounting hole (103) is configured to accommodate an electrode column (10c) of a battery, and the pressure relief hole (104) is configured to accommodate a pressure relief valve (10d); and an insulating member (122), which is stacked with the cover plate (121), wherein the insulating member (122) is provided with a hole (105), a projection of the pressure relief hole (104) on the insulating member (122) at least partially overlaps with the hole (105), and the insulating member further comprises a thin film part (13), which is configured to block the hole.
Resumen de: WO2025138762A1
An integrated cap reshaping, grinding and replacement module, and an apparatus. The integrated cap reshaping, grinding and replacement module comprises a main unit mechanism (1), a reshaping mechanism (2), a grinding mechanism (3) and a cap replacement mechanism (4), wherein the main unit mechanism (1) comprises a mounting surface (111); the reshaping mechanism (2) is configured to extrude an electrode cap; the grinding mechanism (3) is configured to cut the electrode cap; the cap replacement mechanism (4) is configured to dismount or mount the electrode cap; and the reshaping mechanism (2), the grinding mechanism (3) and the cap replacement mechanism (4) are all arranged on the mounting surface (111) and are spaced apart from each other.
Resumen de: WO2025143988A1
A negative electrode for a lithium secondary battery, according to embodiments of the present disclosure, comprises: a negative electrode current collector; a first negative electrode active material layer formed on at least one surface of the negative electrode current collector; and a second negative electrode active material layer which is formed on the first negative electrode active material layer and includes artificial graphite, wherein the first Raman peak area ratio of the first negative electrode active material layer is 1 to 2 and the second Raman peak area ratio of the second negative electrode active material layer is 0.2 to 0.5.
Resumen de: WO2025143955A1
Disclosed are an electrode, a secondary battery comprising same, and an energy storage device, the electrode comprising: an electrode current collector; and an electrode layer located on the electrode current collector and containing an active material, a conductive material, and a binder, wherein: the binder contains a fluorine-based polymer and a modified polyolefin; the surface of the electrode has 5 dichroic regions/ m2 or fewer; the modified polyolefin contains at least one functional group of a carboxylic acid anhydride-derived functional group and a carboxylic acid-derived functional group; and the breaking strength per unit width of the electrode layer is 0.6 N/cm or more.
Resumen de: WO2025143979A1
A negative electrode for a lithium secondary battery according to an embodiment of the present disclosure comprises: a negative electrode current collector; and a negative electrode mixture layer on at least one surface of the negative electrode current collector, the negative electrode mixture layer containing a carbon-based active material, a silicon-based active material, a first binder, and a second binder, wherein each of the first binder and the second binder is a copolymer containing an acrylic acid-derived structural unit represented by chemical formula 1, the content ratio of the acrylic acid-derived structural unit in the first binder is 0 mol% (excusive) to 50 mol% (inclusive) and the content ratio of the acrylic acid-derived structural unit in the second binder is 60 mol% (inclusive) to 100 mol% (exclusive). Chemical formula 1
Resumen de: WO2025143950A1
A separator according to the present invention not only has excellent adhesion to an electrode, but also can secure sufficient porosity, thereby exhibiting excellent resistance and ion conductivity characteristics. Additionally, the lamination process time can be shortened during the manufacture of an electrode assembly, thereby achieving high process efficiency in the manufacture of batteries. Furthermore, the energy density of lithium secondary batteries can be maximized by minimizing the height of an inorganic particle filling part.
Resumen de: WO2025138669A1
The present application provides a cooling device, comprising: a first cooling member and a second cooling member each comprising a first side and a second side opposite to each other. The first cooling member is provided with a first flow channel, and the second cooling member is provided with a second flow channel, wherein the first side of the first cooling member is fixedly connected to the second side of the second cooling member, a first notch is formed in the first side of the first cooling member, a second notch is formed in the second side of the second cooling member, and the first flow channel is communicated with the second flow channel through the first notch and the second notch.
Resumen de: WO2025144019A1
The present invention relates to a positive electrode comprising: a positive electrode current collector; a first positive electrode active material layer formed on the upper surface of the positive electrode current collector; and a second positive electrode active material layer formed on the lower surface of the positive electrode current collector, wherein the first positive electrode active material layer and the second positive electrode active material layer contain a first conductive material and a second conductive material, respectively, the average length of the second conductive material is greater than the average length of the first conductive material, and K represented by Equation 1 is 0.82-1.16. A detailed description of Equation 1 is given in the present specification.
Resumen de: WO2025144005A1
An aspect of the present invention provides a battery management apparatus capable of more accurately diagnosing whether a battery is abnormal. The battery management apparatus according to an aspect of the present invention comprises: a measurement module for measuring state information of a battery; a first diagnosis module configured to diagnose whether the battery is abnormal by comparing the state information measured by the measurement module with a first diagnosis reference; and a second diagnosis module configured to diagnose whether the battery is abnormal on the basis of the degree of change in the state information measured by the measurement module.
Resumen de: WO2025143944A1
The present invention provides a separator for an electrochemical device, comprising: a porous polymer substrate; and an inorganic coating layer for covering one surface or both surfaces of the porous polymer substrate, wherein: the inorganic coating layer includes a plurality of adhesive polymer columns having a predetermined volume; the polymer columns are made of a polymer material and have no pores; at least some parts of the polymer columns are exposed to the surface of the inorganic coating layer while other parts thereof are in contact with the surface of the porous polymer substrate; at least one polymer column is spaced a predetermined distance apart from another polymer column; the space between the polymer columns is filled with inorganic particles; and, on the basis of the top view of the separator, the area occupied by the surface area of the polymer column exposed to the surface of the inorganic coating layer is 10% to 80% with respect to 100% of the surface area of the inorganic coating layer.
Resumen de: WO2025143947A1
A separator according to the present invention not only has excellent adhesion to an electrode, but also can ensure sufficient porosity, and thus has excellent resistance and ion conductivity characteristics. In addition, the lamination process time can be reduced during the manufacture of electrode assemblies, and thus high process efficiency can be achieved in manufacturing batteries.
Resumen de: WO2025138683A1
An electrode sheet, a battery cell, and a lithium battery, relating to the technical field of lithium batteries. The electrode sheet comprises a current collector and an active coating. The electrode sheet comprises an uncoated foil area, a single-sided coated area in which one side surface of the current collector is coated with the active coating, and a double-sided coated area in which two side surfaces of the current collector are coated with the active coating. A corrugated portion is provided in the uncoated foil area, the corrugated portion is connected to the single-sided coated area, and the corrugated portion is provided with serrated or arc-shaped creases. The battery cell comprises an anode sheet, a separator, and a cathode sheet, the anode sheet using the electrode sheet. The lithium battery comprises the battery cell. By means of said technical solution, the problem that a single-sided coated area of an existing lithium battery electrode sheet is prone to wrinkling after being wound is solved, the safety of battery cells is improved, and energy density loss of battery cells is avoided.
Resumen de: WO2025138690A1
Disclosed in the present application are a metal foil, a circuit board, a copper-clad laminate, a negative electrode material for a battery, and a battery. The metal foil comprises a first surface and an opposing second surface, where the average grain size of a metal on the first surface is less than the average grain size of a metal on the second surface. With respect to the metal foil, circuit board, copper-clad laminate, negative electrode material for a battery, and battery of the present application, by means of sensible planning the average grain sizes of the metal foil, the metal foil has been made to possess good corrosion resistance and anti-side corrosion properties, over-etching by an etching solution causing a metal circuit to have an upside-down trapezoidal shape can be effectively prevented, the quality of the metal foil is effectively improved, and the electrical properties of a circuit board are guaranteed.
Resumen de: WO2025138760A1
An electrode cap replacement device, comprising a mounting frame (1), a connecting base (2), a cap removal module (3) and elastic members (4), wherein the cap removal module (3) is arranged on the connecting base (2), and the connecting base (2) is connected to the mounting frame (1) by means of the elastic members (4); the cap removal module (3) is provided with a cap removal through hole (30) into which an electrode rod extends; the axis direction of the cap removal through hole (30) is a first direction (X); and in the first direction (X), one end of each elastic member (4) is connected to the mounting frame (1), and the other end is connected to the connecting base (2), that is, the connecting base (2) is flexibly connected to the mounting frame (1).
Resumen de: WO2025143849A1
An apparatus for managing a battery according to one embodiment of the present invention comprises: a measurement unit configured to measure a voltage and a current of a battery comprising a plurality of negative electrode active materials; a discharge unit having one end connected to a positive electrode terminal of the battery and the other end connected to a negative electrode terminal of the battery and configured to discharge the battery; and a control unit configured to discharge the battery by controlling the discharge unit when the voltage of the battery corresponds to a preset reference voltage, and calculate the capacity of a target negative electrode active material among the plurality of negative electrode active materials of the battery on the basis of a current measured in a discharge process.
Resumen de: WO2025143841A1
The present disclosure aims to provide a cathode mix capable of improving the discharge capacity of a battery. The cathode mix for all-solid-state batteries comprises: a sulfur-containing cathode active material; a first sulfur-containing compound including cobalt; a second sulfur-containing compound including phosphorus; and a conductive additive.
Resumen de: WO2025143843A1
The objective of the present invention is to provide: a sulfide-based solid electrolyte having improved ionic conductivity; a method for preparing the sulfide-based solid electrolyte; and an all-solid-state battery including the sulfide-based solid electrolyte. The present invention provides a sulfide-based solid electrolyte containing a Group 3 element and having an argyrodite-type crystal structure, the sulfide-based solid electrolyte being represented by the formula Li7-x-3yMyPS6-xHax, where M is at least one element selected from Group 3 elements, Ha is at least one element selected from halogen elements, 1.0＜x＜2.5, and 0＜y≤0.2.
Resumen de: WO2025143840A1
The purpose of the present invention is to provide an anode-free all-solid-state battery having improved discharge capacity and cycle characteristics. In addition, the purpose of the present invention is to provide an anode-free all-solid-state battery capable of being driven at a low confining pressure. The present invention provides an all-solid-state battery comprising: a positive electrode including a positive electrode active material layer; a negative electrode current collector; and a solid electrolyte layer disposed between the positive electrode and the negative electrode current collector, wherein in the all-solid-state battery, without containing a negative electrode active material, lithium ions are supplied from the positive electrode active material layer by charging to allow a lithium metal layer as a negative electrode active material to be formed on the negative electrode current collector, and the solid electrolyte layer includes a sulfide-based solid electrolyte containing a group 2 element and having an argyrodite-type crystal structure.
Resumen de: WO2025143848A1
The present invention improves at least one among the initial efficiency, the battery capacity, and the cycle characteristics of a non-aqueous electrolyte secondary battery. A negative electrode active material for a non-aqueous electrolyte secondary battery according to an embodiment of the present invention comprises porous composite particles containing silicon and silicon oxide (SiOx, 0＜x≤2), wherein some or all of the pores of the porous composite particles are filled with carbon, and some or all of the surfaces of the porous composite particles are coated with carbon.
Resumen de: WO2025143941A1
A separator according to the present invention not only demonstrates excellent adhesion to electrodes but also ensures sufficient porosity, thereby exhibiting outstanding resistance and ion conductivity characteristics. In addition, the present invention enables a reduction in lamination process time during the manufacture of electrode assemblies, thereby achieving high process efficiency in battery production.
Resumen de: WO2025143943A1
A separator according to the present invention has excellent adhesion to an electrode and can secure sufficient porosity, thereby exhibiting excellent resistance and ion conductivity characteristics. In addition, the separator is in close contact with the electrode without a gap at the interface between the electrode and the separator, thereby ensuring excellent long-term life characteristics of a battery. In addition, the lamination process time can be shortened during the manufacture of an electrode assembly, thereby achieving high process efficiency in the manufacture of a battery.
Resumen de: WO2025143872A1
The present specification relates to an electrode, and a lithium secondary battery and a battery pack comprising same, the electrode comprising an electrode current collector layer, an electrode active material layer, and a functional layer interposed between the electrode current collector layer and the electrode active material layer, wherein the functional layer includes a specific kind of flame retardant binder and has a limiting oxygen index of 30% or more. The electrode according to the embodiment can ensure battery characteristics while preventing thermal runaway.
Resumen de: WO2025143874A1
The present specification relates to: an electrode slurry, an electrode comprising same, a lithium secondary battery, and a battery pack, the electrode slurry comprising an electrode active material, a conductive material, a binder, a solvent for slurry formation, and a flame retardant material, wherein the flame retardant material has solubility of less than 10 mg/cc at 20°C in a carbonate-based solvent and comprises a specific type of compound. The electrode according to the embodiment can ensure battery characteristics while preventing thermal runaway.
Resumen de: WO2025143821A1
Provided are: a cathode material capable of improving the battery characteristics of an all-solid-state battery; an all-solid-state battery; and a method for producing the cathode material. The cathode material for an all-solid-state battery according to the present invention comprises a lithium transition metal oxide, a solid electrolyte, and carbon nanotubes, wherein at least one carbon nanotube among the carbon nanotubes has a length of at least 100 µm.
Resumen de: WO2025138650A1
A cabinet body (1), an energy storage apparatus (20), and an electric device (10). The cabinet body (1) comprises a housing (11) and a partition plate assembly (12), and the housing (11) encloses an accommodating cavity (11A); the partition plate assembly (12) is disposed in the accommodating cavity (11A) and divides the accommodating cavity (11A) to form a first cavity (11B) and a second cavity (11C); and the first cavity (11B) is used for accommodating an electric appliance component, and the second cavity (11C) is used for accommodating a battery.
Resumen de: WO2025138751A1
A method for stripping electrode sheets from a waste battery. The method comprises: stripping a mixed system comprising electrode sheets of a waste battery and a water-containing solvent under the assistance of ultrasound and ozone, and separating current collectors and electrode active materials from the electrode sheets. The present invention further comprises a solution of deeply removing impurities from the stripped electrode materials. A positive electrode active material of the battery is subjected to alkali leaching for aluminum removal, shearing ozone-assisted fluorine removal and the degradation of a residual electrolyte solution to obtain a high-purity positive electrode active material. The purposes of the deep removal of copper and the removal of residual organic electrolytes from a negative electrode active material can be achieved by means of acid leaching for copper removal and ozone oxidation. By adding a fluorine removal agent to a fluorine-containing and lithium-containing solution generated in the process of shearing fluorine removal, fluorine ions are converted into a stable precipitate, and therefore the generation of a harmful fluorine-containing gas is effectively prevented; and slightly-soluble LiF is converted into a lithium salt solution with a relatively high solubility, and then an Li2CO3 product is obtained by means of subsequent carbonization and decarburization reactions. The present invention further relates to a device capable of achieving the
Resumen de: WO2025138689A1
Disclosed in the present application are a metal foil, a circuit board, a copper-clad laminate, a negative electrode material for a battery, and a battery. The metal foil comprises a first surface and an opposing second surface; a plurality of protrusions are present on the second surface, the maximum vertical height of the protrusions is 0.2-3 μm, and the average grain size of metal grains in the protrusions is 0.05-1.5 μm. With respect to the metal foil, circuit board, copper-clad laminate, negative electrode material for a battery, and battery of the present application, by means of the design of the protrusions and the average grain size on the metal foil, the metal foil is made to have good corrosion resistance, side corrosion of a circuit can be mitigated, product yield is effectively improved, and the electrical performance of a circuit board is further ensured.
Resumen de: WO2025144383A1
The invention relates the inventive li-ion battery pouch type cell cassette gluing unit (1) which comprises, within its structure, an adhesive spraying module (1.1), which performs the process of spraying adhesive liquid evenly and homogeneously by using the signals from the system when the cell cassettes are positioned in the desired position; a Y-axis motion module (1.2) providing vertical movement of the gluing unit (1) and an X-axis motion module (1.3) providing horizontal movement of the gluing unit (1).
Resumen de: WO2025143749A1
The present invention relates to surface modification of a positive electrode active material of a secondary battery and, more particularly, to a method for suppressing an electrochemical side reaction between an electrolyte and a positive electrode active material by coating the positive electrode active material with an insulating polymer having insulating properties, and to a positive electrode active material and a lithium secondary battery prepared therefrom. According to the present invention, stability and lifespan characteristics of the lithium secondary battery can be improved.
Resumen de: WO2025143770A1
Provided are a battery cell stacking assembly and a method for manufacturing same. A battery cell stacking assembly according to one aspect of the present specification comprises: a plurality of plate-shaped battery cells stacked in a horizontal first direction; and side beams coupled to one side and the other side of the plurality of plate-shaped battery cells in the horizontal first direction.
Resumen de: WO2025143737A1
The present invention relates to a secondary battery fixing jig, which comprises: a mounting plate including an electrically insulating material and provided to have a secondary battery mounted thereon; a plurality of terminal connection parts each provided to be in direct contact with and electrically connected to one electrode terminal among a plurality of electrode terminals; a bus bar mounted on the mounting plate and provided to electrically connect electrode terminals having the same polarity among the plurality of electrode terminals of the secondary battery; and at least one terminal fixing member configured to be movable along the bus bar and provided to electrically connect, on the bus bar, an electrode terminal having the same polarity as the electrode terminal connected to the terminal connection part.
Resumen de: WO2025143774A1
Provided are a gripper and a method for manufacturing a battery pack by using same. The gripper according to an embodiment, which is for transporting, to a pack housing, a battery cell stack assembly including multiple flat battery cells stacked in a horizontal first direction and side beams coupled to one side and the other side in the horizontal first direction of the multiple flat battery cells, may include: a base disposed above the battery cell stack assembly; a suction part disposed on the lower side of the central area of the base to suck onto the battery cell stack assembly; and lift pins protruding below the base and coupling to grip holes formed in the side beams in the vertical direction.
Resumen de: WO2025138646A1
The present application provides a battery pack packaging structure. The battery pack packaging structure comprises a pallet structure and a cover body; the pallet structure comprises a pallet body and a support portion, at least part of the support portion protruding from the periphery of the pallet body in the plane extension direction of the pallet body, and the support portion being fitted with the pallet body to form a groove located on the periphery of the pallet body; the cover body is provided on a first side of the pallet body; a cavity is formed in the side of the cover body facing the pallet body; a battery pack is located on the first side of the pallet body and is received in the cavity; at least part of the cover body is lapped within the groove, and the pallet body is received in the cavity.
Resumen de: WO2025138599A1
The present invention belongs to the technical field of battery pack structures, and specifically relates to a battery pack having a cover plate cooling function. The present invention provides a battery pack having a cover plate cooling function, which, by means of arranging a hollow insertion plate unit and a liquid blocking plate unit on a pipe-equipped housing unit, can achieve: 1. the hollow insertion plate unit being able to perform more ample cooling on either side and above a battery cell, ensuring higher liquid cooling efficiency and a larger effective liquid cooling area; and 2. the liquid blocking plate unit being able to perform organized flow guidance within the hollow insertion plate unit, preventing slow-moving flows over a large area and ensuring liquid cooling strength at a higher efficiency.
Resumen de: WO2025138562A1
The present application relates to the technical field of vehicles, and discloses a battery state of health determining method and apparatus, a battery management system, and a storage medium. In the method, the current inherent capacity of each battery cell is first determined on the basis of the current remaining power of each battery cell in a battery system and the current discharge capacity of the battery system, and then the current state of health of the battery system is determined on the basis of the current inherent capacity of each battery cell and a nominal capacity. In view of the above, in the method, during determining the state of health of the battery system, the current data is used, such that the problem of error accumulation over time is avoided, and then the accuracy of determining of the state of health of the battery system can be improved.
Resumen de: EP4579926A1
Disclosed herein relates to an electrode lead welding method for welding electrode leads of a cell assembly including a plurality of cells, including: preparing a cell stack with a plurality of stacked cells from which electrode leads are drawn out; preparing a busbar frame provided with a lead connection part including a pair of lead slits spaced apart at a predetermined distance; coupling a cell stack and a busbar frame such that electrode leads of the cell stack are inserted through the lead slits; bending the electrode leads penetrating through the lead slits of the lead connection part so that the electrode leads overlap towards each other; and welding the pair of overlapped electrode leads, wherein the lead connection part comprises an insertion groove between a pair of lead slits, wherein the method further comprises inserting a welding protection bar into the insertion groove prior to the welding step, wherein the welding protection bar is inserted into the insertion groove to be spaced apart at a predetermined distance from the rear surface of the electrode lead.
Resumen de: EP4579871A1
Disclosed is a battery module. A battery module according to an embodiment of the present disclosure may include: a case configured to provide an inner space; a plurality of battery cells positioned inside the case and stacked in a left-right direction; an extinguishing tank positioned between the plurality of battery cells and the case and configured to provide an inner space; an extinguishing pipe communicating with the extinguishing tank and extending in the left-right direction; a spray nozzle communicating with the extinguishing pipe and protruding toward the plurality of battery cells; and a sealing member configured to seal the spray nozzle.
Resumen de: EP4579908A1
There is provided a battery pack with lower material cost, simple structure and higher energy density. The battery pack according to an aspect of the present disclosure includes a plurality of posts; a plurality of steel bars connecting the posts facing each other among the plurality of posts and assembled in multiple layers along a height direction of the posts; a plurality of trays situated on the steel bars to form each layer; and a plurality of cell module assemblies situated on the tray of each layer.
Resumen de: EP4579786A1
The present disclosure provides an electrode, a secondary battery, and an electric device. The electrode comprises a lithium replenishment layer. The lithium replenishment layer comprises a lithium replenishment agent and a conductive agent, and the ratio of the total surface area of the conductive agent in the lithium replenishment layer to the total surface area of the lithium replenishment agent in the lithium replenishment layer is (0.5-5):1. The ratio of the surface areas of the lithium replenishment agent and the conductive agent in the lithium replenishment layer meet a certain condition, such that the lithium replenishment layer not only achieves a good lithium replenishment effect, but also has good conductivity.
Resumen de: EP4579787A2
The present disclosure provides a positive electrode sheet for a sodium ion battery, a sodium ion battery, and a device. The positive electrode sheet comprises a positive electrode current collector and a sodium replenishment layer and a positive electrode coating sequentially laminated on at least a side of the positive electrode current collector. The sodium replenishment layer comprises a sodium-rich transition metal oxide sodium replenishment agent. The positive electrode coating comprises a sodium positive electrode active material and a sacrificial positive electrode sodium replenishment agent that is decomposable to produce a gas. By introducing the two types of positive electrode sodium replenishment agents into the positive electrode sheet and arranging in layers as above, many problems caused by using them alone are alleviated, to ensure that the energy density of the battery is improved without obviously increasing the battery impedance, and improve the sustainable discharge capacity of the battery.
Resumen de: EP4579813A1
The present disclosure provides a positive electrode active material, a positive electrode, a battery, and a device. The positive electrode active material comprises a first lithium iron manganese phosphate particle and a second lithium iron manganese phosphate particle. The particle size D<sub>50</sub> of the first lithium iron manganese phosphate particle is less than the particle size D<sub>50</sub> of the second lithium iron manganese phosphate particle. The Mn/(Mn+Fe) molar ratio in the first lithium iron manganese phosphate particle is x, the Mn/(Mn+Fe) molar ratio in the second lithium iron manganese phosphate particle is y, and x>y. The positive electrode active material of the present disclosure comprises two kinds of lithium iron manganese phosphate particles having different particle size ranges and different manganese contents in combination. The first lithium iron manganese phosphate particle of small particle size particle having a high manganese content supports the instantaneous high-power output of the battery in the process of high-rate discharge, to improve the rate performance of the battery. The second lithium iron manganese phosphate particle of large particle size having a low manganese content improves the capacity per gram of the active material, enhances the compaction density, and increases the energy density of the battery.
Resumen de: EP4579822A1
Disclosed herein are an electrode assembly for a lithium secondary battery and a lithium secondary battery including the same. The electrode assembly includes a negative electrode including a negative electrode current collector having one end portion on which a negative electrode tab is formed and a negative electrode active material layer positioned on at least one surface of the negative electrode current collector, and a positive electrode including a positive electrode current collector having one end portion on which a positive electrode tab is formed and a positive electrode active material layer positioned on at least one surface of the positive electrode current collector, wherein, in each of the negative electrode and the positive electrode, a region with a high current density and a region with a low current density are present when a voltage is applied to the electrode assembly, and a hole area ratio in the region with a high current density is greater than that in the region with a low current density.
Resumen de: EP4580073A1
The present disclosure relates to a battery management system, a battery pack including the same, and an operating method of the battery management system, and is directed to providing a battery management system capable of always maintaining the performance of wireless communication at a certain level or higher in various environments, a battery pack including the same, and an operating method of the battery management system. To this end, the present disclosure provides a battery management system including a plurality of antennas, a communication module configured to perform communication using any one of the plurality of antennas, a switch configured to selectively connect any one of the plurality of antennas and the communication module, and a processor configured to detect reception sensitivity of the antenna connected to the switch and control the switch based on the reception sensitivity.
Resumen de: EP4579898A1
A battery explosion-proof structure, a battery, and a battery pack are provided. The battery explosion-proof structure includes a cover plate (110) provided with a first score (111) and a second score (112). A thickness of the cover plate (110) at the first score (111) is less than a thickness of the cover plate (110) at the second score (112). The first score (111) includes a first segment (1111) and a second segment (1112) connected together. The first segment (1111) includes a first end (1113) and a second end (1114). The second segment (1112) includes a third end (1115) and a fourth end (1116). A distance between the first end (1113) and the third end (1115) is greater than a distance between the second end (1114) and the fourth end (1116).
Resumen de: EP4579892A1
An electrode terminal (20) includes a first portion (21) and a second portion (22) arranged in a first direction (X). The first portion (21) is connected to the electrode assembly (10) and has a first connection region (211), and the second portion (22) is connected to the electrode assembly (10) and has a second connection region (221). The sealing member (30) is connected to the electrode terminal (20) and disposed on one side of the electrode assembly (10) in a second direction (Y), and the first direction (X) is perpendicular to the second direction (Y). In an extension direction of the electrode terminal (20), the first connection region (211) has a first edge (2111) away from the sealing member (30) and a second edge (2112) close to the sealing member (30), and the second connection region (221) has a third edge (2211) away from the sealing member (30) and a fourth edge (2212) close to the sealing member(30), where a minimum distance between the first edge (2111) and the third edge (2211) is Di, a minimum distance between the second edge (2112) and the fourth edge (2212) is D<sub>2</sub>, and at least one of D<sub>1</sub> or D<sub>2</sub> is greater than 0. In this application, tension regions of the electrode terminal (20) and the electrode assembly (10) are separated, improving the reliability of the secondary battery (100).
Resumen de: EP4579989A1
The present disclosure provides a current distribution method and an analog circuit. The method includes: determining, according to a total quantity of battery clusters of a plurality of battery clusters connected in parallel in a battery energy storage system, a distribution proportion constraint interval set for each battery cluster; determining, according to a battery-cluster parameter, a current distribution target proportion set for each battery cluster, where the current distribution target proportion is within the distribution proportion constraint interval, and the battery-cluster parameter includes at least one of the following: a present remaining capacity of the battery cluster, a capacity set critical value and the distribution proportion constraint interval; and distributing current to various battery clusters according to the current distribution target proportion. The present disclosure can ensure battery clusters with different capacities to quickly reach balance during operation, thus achieving an effect of improving stability and reliability of the battery energy storage system.
Resumen de: EP4579922A2
A hydrogel composition for reinforcing a cellulose paper battery separator comprises a monomer, a cross-linking reagent, an initiator, and a metal salt. A hydrogel-reinforced cellulose paper battery separator comprises a cellulose paper, and a hydrogel integrated within the cellulose paper. A paper battery comprises the hydrogel reinforced cellulose paper batter separator. A method for fabricating the hydrogel reinforced cellulose paper batter separator.
Resumen de: EP4579790A1
An anode for a lithium secondary battery according to embodiments of the present disclosure includes an anode current collector, a first anode active material layer formed on at least one surface of the anode current collector and including first pores, a second anode active material layer formed on the first anode active material layer and including artificial graphite and second pores, wherein a difference between the first pore aspect ratio and the second pore aspect ratio is 0.5 to 3.0.
Resumen de: EP4579886A1
A battery assembly which comprises a case (30), a plurality of battery cells (10) accommodated in a first inner space of the case, and a plurality of particle-shaped insulating materials (80) accommodated in a second inner space of the case.
Resumen de: EP4579909A1
A hatch cover, comprises a cover body (21) having a first sealing ring (22) disposed about a periphery; a first locking unit is provided with a pair of sliding buckles (23) which are connected to the inner side surface of the cover body in a sliding manner, the sliding buckles are locked with the cabin body of the battery cabin along a first direction when moving away from each other to protrude out of the outer periphery of the cover body, and the sliding buckles move in opposite directions to retract to the inner side of the outer periphery of the cover body and unlock relative to the cabin body of the battery cabin; a second locking unit (25) is provided with a rotary buckle which is rotationally connected to the inner side surface of the cover body, the rotary buckle is locked with the cabin body of the battery cabin along a second direction when rotating to a first position, and the rotary buckle is unlocked relative to the cabin body of the battery cabin when rotating to a second position; and a rotary driving unit (24) is connected with the sliding buckle and the rotary buckle andis used for driving the first locking unit and the second locking unit to synchronously move to a locking state or an unlocking state;wherein the first direction and the second direction are arranged at an angle.
Resumen de: EP4579819A1
A sub-assembly for an electrode-solid electrolyte, an all-solid-state battery comprising the same, and a method of preparing the all-solid-state battery. The electrode-solid electrolyte sub-assembly includes an electrode including a porous current collector having a first side and an opposite second side; an elastic layer including an elastic polymer and disposed on the first side of the porous current collector; and a solid electrolyte disposed on the opposite second side of the porous current collector. The porous current collector includes a plurality of internal pores and the elastic polymer is disposed in at least one internal pore of the plurality of internal pores of the porous current collector.
Resumen de: EP4578899A1
Provided are a polyolefin microporous membrane, a method for manufacturing the same, and a separator including the microporous membrane. According to an exemplary embodiment, a polyolefin microporous membrane including: 60 wt% to 80 wt% of a polypropylene having a viscosity average molecular weight of 1×10<sup>6</sup> g/mol to 3×10<sup>6</sup> g/mol and 20 wt% to 40 wt% of a polyethylene having a weight average molecular weight of 1×10<sup>5</sup> g/mol to 10×10<sup>5</sup> g/mol is provided, wherein the polyolefin microporous membrane has a puncture strength of 0.25 N/um or more, a gas permeability of 1.0×10<sup>-5</sup> Darcy or more, a porosity of 30% to 70%, an average pore size of 20 nm to 40 nm, and a shutdown temperature of 150°C or lower.
Resumen de: EP4579774A1
According to an embodiment, an electrode for a secondary battery is provided, the electrode for a secondary battery including: an electrode current collector, and an electrode mixture layer and an insulating layer on at least one surface of the electrode current collector, wherein the insulating layer includes a copolymer, and the copolymer includes a repeating unit having an imide group and a rubber-based repeating unit.According to an embodiment of the present disclosure, it is possible to prevent ignition from occurring in the lithium secondary battery to improve safety.
Resumen de: EP4579802A1
A cathode active material for a lithium secondary battery according to the embodiments of the present disclosure includes: first cathode active material particles which includes a lithium metal oxide containing nickel, cobalt and manganese; and second cathode active material particles which includes a lithium phosphate compound, wherein a molar ratio of the cobalt based on a total number of moles of the nickel, cobalt and manganese in the first cathode active material particles may be more than 0 and less than 0.15, and a weight ratio of the first cathode active material particles and the second cathode active material particles is 20:80 to 80:20. Accordingly, a lithium secondary battery having improved stability, capacity characteristics, and lifespan characteristics while reducing production costs may be implemented.
Resumen de: EP4579901A1
A battery structure (1) includes two battery modules (10a, 10b) and a conductive elastic member (112). Each of the two battery modules (10a, 10b) includes a housing (100), a plurality of battery cells (102), a first holder (104), a second holder (106), a first conductive plate (108) and a second conductive plate (110). The battery cells (102) are disposed in the housing (100). The first holder (104) and the second holder (106) accommodate the battery cells (102). The first conductive plate (108) is disposed on the first holder (104) and connected to the battery cells (102). The second conductive plate (110) is disposed on the second holder (106) and connected to the battery cells (102). The conductive elastic member (112) is disposed between and in contact with the first conductive plate (108) and the second conductive plate (110) of the two battery modules (10a, 10b).
Resumen de: EP4579881A1
A battery pack and a battery apparatus utilize cooling fluid and cooling fluid circuitry for cooling battery cells in a normal operating state in which an event is not detected and extinguishing the event in an abnormal state. The cooling fluid circuitry controls inflow and outflow rates of the cooling fluid, such as a fluid pump or a fluid valve connected to an inlet and an outlet of the battery pack. In a normal operating state in which an event, such as ignition, explosion, or gas emission of battery cells, is not detected, the operating heat resulting from charging and discharging of battery cells may be quickly cooled through immersion-type liquid cooling of the battery cells. In response to the detection of an event, the event may be quickly extinguished using the cooling fluid by raising the fluid level of the cooling fluid to a preset elevated level.
Resumen de: EP4579885A1
Battery modules and battery packs are disclosed. In an embodiment of the disclosed technology, a battery module may include a cell assembly including a plurality of battery cells and at least one thermal transfer blocking assembly interposed between two or more adjacent battery cells of the plurality of battery cells; a module housing including a main plate structured to support the cell assembly; at least one slit formed in the main plate and arranged to face the at least one thermal transfer blocking assembly; and a thermally conductive polymer disposed in the at least one slit. A melting point of the thermally conductive polymer may be lower than a melting point of the main plate.
Resumen de: EP4578831A1
A cathode active material for a lithium secondary battery has a structure of a lithium transition metal oxide. A ratio of a crystallite size of a (003) plane to a crystallite size of a (110) plane measured by an X-ray diffraction (XRD) analysis is in a range from 0.7 to 2.0, and a ratio of the crystallite size of the (003) plane to a crystallite size of a (104) plane measured by the XRD analysis is in a range from 0.7 to 2.0. A cathode for a lithium secondary battery and a lithium secondary battery include the cathode active material for a lithium secondary battery.
Resumen de: EP4579794A1
The present application provides a positive electrode sheet, a secondary battery, a battery pack and an electricity-consumption equipment. The positive electrode sheet includes a positive current collector. At least one surface of the positive current collector is provided with a positive active material layer. In any 25µm×25µm region of a cross section of the positive active material layer, a percentage of an area of a first positive active material with a cracked structure to a total area of the region is a %, 5≤a≤20.
Resumen de: EP4579788A1
The present disclosure provides a lithium replenishment assembly, a positive electrode, a secondary battery, and an electric device. The lithium replenishment assembly includes a current collector and a lithium replenishment layer provided on at least one side surface of the current collector. After delithiation of the lithium replenishment layer, the resistivity of the lithium replenishment assembly at the room temperature ranges from 2 Ω·m to 2000 Ω·m. It has a lithium replenishment effect and maintains low resistivity after delithiation of the lithium replenishment layer, thereby increasing the energy density of the battery while enabling good rate performance of the battery.
Resumen de: EP4579393A1
The present invention provides a liquid cooling plate assembly, a server, and a data center. The liquid cooling plate assembly includes: a cooling plate and a cover body, the cooling plate has a cavity for accommodating coolant and an interface for connecting to a liquid cooling pipe, the interface is in communication with the cavity, the cooling plate further includes a recess, and the interface is located in the recess; and the cover body covers at a location of the recess, and forms an accommodating space for accommodating an overflow liquid with the cooling plate. By the present invention, the problem of liquid leakage damage in a liquid cooling solution in the related art is solved.
Resumen de: EP4579804A1
Provided are a negative electrode material and a preparation method thereof, as well as a lithium ion battery. a negative electrode prepared from the negative electrode material act as an operating electrode, a metal lithium act as a reference electrode, the metal lithium act as a counter electrode, and an electrolyte contains metal lithium ions, forming a three-electrode battery for charging and discharging, and when the negative electrode material is electrified in a de-intercalation direction, a graph of a relationship between a differential value dQ/dV obtained by differentiating a potential V of the operating electrode based on the reference electrode to a charge and discharge capacity Q and the potential V of the operating electrode is obtained; and in the graph of the relationship between dQ/dV and the potential V, the differential value dQ/dV of the potential V between 20mV and 80mV has a maximum peak value A1, and the differential value dQ/dV of the potential V between 120mV and 210mV has a maximum peak value B1, where B1/A1≤4. According to the negative electrode material provided by the present disclosure, the volume expansion of the negative electrode material can be effectively inhibited and the cycle performance of the negative electrode material can be improved.
Resumen de: EP4578968A1
The present invention relates to a method of recovering lithium, and more particularly, to a method of recovering lithium including step (a) of dissolving cathode material powder having an olivine structure obtained from a cathode of a waste lithium-ion battery in an aqueous acetic acid solution to prepare a solution; step (b) of adding an aqueous hydrogen peroxide (H<sub>2</sub>O<sub>2</sub>) solution into the solution to obtain lithium-dissolved leachate and a leaching residue; step (c) of separating the leachate and the leaching residue; and step (d) of concentrating the leachate, wherein step (b) is performed at 45 to 65 °C; in step (a), acetic acid is used at a centration of 0.8 to 1.2 mol based on 1 mol of a cathode active material in the cathode material powder; and in step (b), hydrogen peroxide is used at a centration of 0.4 to 0.6 mol based on 1 mol of a cathode active material in the cathode material powder.According to the method of the present invention, by selectively leaching only lithium from a cathode material having an olivine structure using an oxidizer in a weakly acidic aqueous acetic acid solution within a predetermined temperature range, lithium may be recovered in a high yield. In addition, by preserving FePO<sub>4</sub> as a leaching residue and reusing FePO<sub>4</sub> as a raw material for lithium iron phosphate, productivity and economic efficiency may be greatly improved, and wastewater treatment is
Resumen de: EP4578828A1
A carbon nanotube dispersion composition includes carbon nanotubes (A), a dispersant (B), and a solvent (C). A particle diameter D50 at a cumulative volume of 50% according to laser diffraction particle size distribution measurement is 0.3 to 7 µm, and (1) and (2) below are satisfied.(1) The dispersant (B) is a polymer that has a weight average molecular weight of 5,000 or more and 360,000 or less and includes a carboxyl group-containing structural unit derived from at least one of (meth)acrylic acid and (meth)acrylate having a carboxyl group, and a content ratio of the carboxyl group-containing structural unit is 80 mass% or more based on a mass of the polymer.(2) When the particle diameter D50 at a cumulative volume of 50% according to laser diffraction particle size distribution measurement of the carbon nanotube dispersion composition is X µm, and a pH is Y, X and Y satisfy (Formula a) and (Formula b) below: Y≥−0.149X+4.545Y≤−0.134X+5.140.
Resumen de: EP4579796A1
This application relates to a lithium iron phosphate and a preparation method and application thereof, and an ammonium salt compound and application thereof. The method for preparing lithium iron phosphate includes: mixing iron phosphate, a lithium source, a carbon source, a dispersant, and a solvent to make a precursor slurry; sintering the precursor slurry to make lithium iron phosphate, where the dispersant includes an ammonium salt compound represented by Formula (1), in which R<sub>1</sub> is a carbon-containing organic group. The lithium iron phosphate prepared by the method for preparing lithium iron phosphate can improve charge and discharge capacities of the secondary battery.
Resumen de: EP4579865A1
A jelly-roll electrode assembly may include a first separator, a negative electrode, a second separator, and a positive electrode, which are sequentially laminated and wound. A core portion of the jelly-roll electrode assembly includes a rigid film disposed between the first separator and th second separator. A length of the rigid film in a longidudinal direction may be from 100% to 150% of an inner circumference of the jelly-roll electrode assembly and a tensile strength of the rigid film may be from 18 kgf/mm<sup>2</sup> to 25 kgf/mm<sup>2</sup>. A secondary batter may include the jelly-roll electrode assembly, and the jelly-roll electrode assembly may be manufactured by a method described herein.
Resumen de: EP4579795A1
This application relates to the field of battery technology, and in particular, to a composite positive electrode material and a preparation method thereof, a positive electrode plate, a battery, and an electrical device. The composite positive electrode material includes a composite formed by a positive active material and carbon. In a particle structure of the composite, a mass ratio of a carbon content inside to a carbon content on a surface is (0.8 to 2): 1. In the composite positive electrode material, the distribution of carbon in the particles is uniform, thereby effectively improving the overall electronic conductivity of the material.
Resumen de: EP4579847A1
A gel polymer electrolyte for a lithium battery, including a gel polymer and a liquid electrolyte, and a lithium battery including the same, wherein the liquid electrolyte includes a lithium salt and an organic solvent, and the gel polymer is a crosslinked product of i) a multifunctional acrylic first polymerizable monomer including three of more polymerizable functional groups, and ii) a second polymerizable monomer selected from among urethane-acrylic monomers including two more functional groups.
Resumen de: EP4579772A1
An apparatus (40, 100) and method for measuring an electrode plate thickness, which can measure a thickness of an active material coating layer formed on an electrode plate (10) before drying the electrode plate (10). The apparatus (40, 100) for measuring an electrode plate thickness includes a sensor module (110) disposed upstream of a drying furnace (50) to detect a thickness of an electrode plate (10), and a processor (140) configured to detect the thickness of the electrode plate (10) at each location in a width direction through the sensor module (110), to calculat an active material coating thickness at each location based on the thickness of the electrode plate (10) at each location, to calculate a measurement error at each location due to thermal deformation of the sensor module (110), and to compensate the active material coating thickness at each location based on the measurement error at each location.
Resumen de: WO2024149476A1
The invention relates to a device (100; 100*) for coating a carrier substrate (006) with a powder material (004), comprising at least one first application mechanism (101) having a first roller (102; 102') and a second roller (103) which is adjacent to the first roller (102; 102'), which rollers form a first gap (104; 104') in the nip (107; 107') between their lateral surfaces, which first gap serves the purpose of film formation and through which first gap powder material (004) can be conveyed in order to form a first dry film (003') in the process, wherein the second roller (103; 103'), or an additional roller which is downstream of the second roller (103) in the direction of the material flow, forms a second gap (107) with a roller (103'; 106) acting as a counter-pressure roller (103'; 106), through which second gap a carrier substrate (106) to be coated can be guided, and the dry film (106) formed in the first gap (104; 104') can be applied to the carrier substrate. The first roller and the second roller (102; 103; 102'; 103') can be tilted in relation to one another in respect of the relative extension of their axes of rotation (R102; R103, R102'; R103') and are variable in their relative inclination (α) in that the first roller or the second roller (102; 103; 102'; 103') is mounted in the device so as to be pivotable about an actual pivot axle or an imaginary pivot axis (S) extending perpendicularly to the axis of rotation (R102; R103, R102'; R103') of the pivotable ro
Resumen de: MX2025001003A
The present invention relates to a method for producing cathode material from spent batteries, and to cathode material obtained according to the method of the invention.
Resumen de: CN119923372A
The present invention provides a process for preparing a high purity nickel sulfate solution, the process comprising the steps of: i. Forming a mixed metal sulfate aqueous solution by reacting sulfuric acid with a raw material feed comprising nickel, manganese, cobalt and magnesium in an aqueous medium; ii. Extracting manganese from the mixed aqueous metal sulfate solution, thereby obtaining a first aqueous raffinate comprising nickel, cobalt and magnesium, and a manganese-rich organic phase; iii. Extracting cobalt from the first aqueous raffinate, thereby obtaining a second aqueous raffinate comprising nickel and magnesium, and a cobalt-rich organic phase; and iv, extracting magnesium from the second aqueous raffinate to obtain a high-purity nickel sulfate solution and a magnesium-rich organic phase.
Resumen de: CN119605030A
The present application relates to a protection device against discharge by the human body, comprising an electrically conductive element (40) electrically connected between a cathode (14) of a battery cell (12) of a vehicle propulsion battery module (10) and a metal casing (20) surrounding said battery cell (12), the electrically conductive element (40) showing a resistance characteristic, the invention relates to a battery unit (12) for limiting stray capacitance energy through a human body when the human body is in contact with a conductor of the battery unit (12).
Resumen de: WO2025023693A1
A battery pack including a battery cell assembly including a cell block having a plurality of battery cells, and a bottom cover plate under a bottom surface of the cell block, a housing having an opening, and accommodating the battery cell assembly, and a pack cover coupled to the housing and covering the opening, wherein the battery cell assembly and a bottom wall of the housing are spaced apart from each other to form a first space, and wherein the bottom cover plate includes a venting passage in communication with the first space.
Resumen de: WO2025023624A1
A battery assembly includes a first cell block; a first cover coupled to a first side of the first cell block; and a second cover coupled to a second side of the first cell block opposite the first side. The first cover includes a first extending portion extending from the first cover. The first extending portion includes a first plate spaced apart from a surface of the first cover in a first direction. The first extending portion further includes a second plate between the first plate and the first surface of the first cover.
Resumen de: EP4579902A1
The present invention relates to a cap assembly for a secondary battery, including a top cap electrically connected to the outside and a gasket surrounding an outer peripheral portion of the top cap, wherein the top cap has a thermally conductive layer provided on one surface.
Resumen de: EP4579939A1
Disclosed is a battery module. The battery module includes a case having an open front side and providing an inner space; a plurality of battery cells accommodated in the case; a bus bar frame assembly electrically connected to the plurality of battery cells and located on a front side of the plurality of battery cells; an end cover coupled to the open front side of the case; and an insulation cover located between the bus bar frame assembly and the end cover and coupled with the bus bar frame assembly.
Resumen de: EP4578912A1
Disclosed in the present application are a polymer, a preparation method therefor, a separator, an electrode sheet, a battery and an electrical apparatus. The polymer comprises an organic polymer and an inorganic substance, polymerization monomers of the organic polymer comprising a first monomer and a second monomer. The structural formula of the first monomer comprises:wherein R1 comprises a hydrogen atom or an alkyl group having 1-6 carbon atoms, and R2 comprises a hydrogen atom, a substituted or unsubstituted alkyl group having 1-21 carbon atoms, a cycloalkyl group having 3-6 carbon atoms, and a substituted or unsubstituted isobornyl group, substituent groups of the substituted alkyl group having 1-21 carbon atoms comprising a hydroxyl group. The second monomer contains an alkenyl group.
Resumen de: EP4579930A1
This application discloses a battery and a battery pack. The battery includes a housing, a battery post, a battery cell, and an adapter. The housing includes a first side plate. The battery post is mounted to the first side plate. The battery cell is accommodated in the housing. The battery cell includes a battery cell body and a first tab, where the first tab extends from an end of the battery cell body facing the first side plate. The adapter includes a first connecting portion, a first bending portion, a second connecting portion, a second bending portion, and a third connecting portion. The first connecting portion is connected to the first tab, and the first bending portion connects the first connecting portion and the second connecting portion. A projection of the first connecting portion on the first side plate does not overlap with a projection of the second connecting portion on the first side plate, and the first connecting portion is closer to the first side plate than the second connecting portion. The third connecting portion is located between the second connecting portion and the first side plate, the second bending portion connects the second connecting portion and the third connecting portion, and the third connecting portion is connected to the first side plate or to the battery post.
Resumen de: EP4579853A1
An electrolyte additive composition of a lithium-ion battery, an electrolyte containing the additive composition, and a use of the electrolyte. The additive composition comprises an unsaturated cyclic carbonate and an unsaturated chain carbonate. The unsaturated cyclic carbonate comprises at least one of the following compounds: formula (1-a), formula (1-b), and formula (1-c); the structural general formula of the unsaturated chain carbonate is: general formula (2), wherein R<sub>1</sub> is hydrocarbyl or fluorinated hydrocarbyl containing 1 to 6 carbon atoms, R<sub>2</sub> is hydrocarbyl or fluorinated hydrocarbyl containing 1 to 6 carbon atoms, and group A is vinylidene or ethynylene. The lithium-ion battery using the electrolyte has the advantages of low impedance, excellent cycle performance and the like, and the battery has excellent high-temperature cycle performance and high-temperature storage performance.
Resumen de: EP4578829A1
Disclosed are a porous carbon material, a method for fabricating the same, a positive electrode for a lithium secondary battery comprising the same as a positive-electrode active material, and a lithium secondary battery, wherein the performance of a sparingly solvating electrolyte based lithium secondary battery can be improved by applying the porous carbon material having an increased pore volume and specific surface area through an activation process to the positive electrode. The porous carbon material has a specific surface area of 1,700 m<sup>2</sup>/g or more, and a pore volume of 5 cm<sup>3</sup>/g or more.
Resumen de: EP4578513A1
This application provides an energy storage container and an energy storage system. The energy storage container includes a container body, and two compartments are adjacently arranged in a length direction of the container body. One compartment is a battery compartment used for battery packs, and a temperature control compartment and a power distribution compartment are adjacently arranged in a height direction of the container body in the other compartment. The temperature control compartment is stacked above the power distribution compartment. The temperature control compartment is configured to accommodate a liquid cooling unit. The power distribution compartment is configured to accommodate an adapter cable device, a fire extinguishing device, and a power distribution device. Therefore, internal space of the battery compartment is continuous, and accommodates only a battery cluster, to implement electrical isolation. Therefore, the battery cluster can be placed in the battery compartment, to improve space utilization of the battery compartment, improve energy storage density of the energy storage container, and perform unified thermal management on the battery cluster. In addition, a battery layout of the battery compartment can be designed based on sizes of the battery packs.
Resumen de: EP4579889A2
A secondary battery pack (10) includes: a plurality of cell arrays (10), each including a plurality of unit cells (100) located in series along a first direction (X-axis); and a frame (20) to include the cell arrays (10). Each of the unit cells (100) includes: a first surface (111) having a long side extending in the first direction (X-axis); a second surface (112) opposite to the first surface (111) and having a long side extending in the first direction (X-axis); a third surface (113) perpendicular to the first surface (111) and in contact with the long side of the first surface (111) and the long side of the second surface (112); a fourth surface (114) opposite to the third surface (113); a first side surface (111) in contact with short sides of the first to fourth surfaces (111, 112, 113, 114); a second side surface (116) opposite to the first side surface (115); a first electrode terminal (130) on the first side surface (115); and a second electrode terminal on the second side surface (116).
Resumen de: EP4579842A1
A separator, a method for manufacturing the separator, an energy storage device, and an electricity-consumption apparatus are provided. The separator has a portion with a first porosity and a portion with a second porosity arranged in a width direction of the separator. The second porosity is less than the first porosity. The first portion is disposed closer to the tab of the energy storage device than the second portion.
Resumen de: EP4579879A1
Embodiments of this application provide a battery and an electric device. The battery includes a battery cell and a thermal management component. The thermal management component is opposite the battery cell along a first direction and connected to a first wall of the battery cell, the first wall is a wall with a largest surface area of the battery cell, and the first direction is perpendicular to the first wall. The thermal management component includes a pair of heat conducting plates opposite each other along the first direction and a first connecting rib connecting the pair of heat conducting plates, and the first direction is perpendicular to the first wall. The first connecting rib is configured to be deformable when the battery cell swells, to provide a swelling space for the battery cell. The battery and the electric device in the embodiments of this application can improve the reliability of the battery.
Resumen de: EP4579882A1
Embodiments of this application provide a battery and an electric apparatus. The battery includes a battery cell group and a thermal management means. The battery cell group includes a plurality of battery cells, and the thermal management means is configured to regulate temperature of the battery cell group, where at least two surfaces of the battery cell are thermally connected to the thermal management means. The embodiments of this application can increase a heat exchange area of the battery cell, allowing the thermal management means to have higher thermal management efficiency for the battery cell. This in turn can meet the cooling requirements of the battery under higher current or faster charging conditions and meet the heating requirements of the battery in lower temperature environments, thereby improving safety and service life of the battery.
Resumen de: EP4579919A1
A battery module according to the present disclosure includes: a cell stack including stacked pouch-type battery cells; a bus-bar frame assembly configured to electrically connect the battery cells; a module case configured to accommodate the battery cells; and a venting guide member attached to a cell terrace of a pouch case heat-fused in the battery cell and configured to make a hole in the cell terrace.
Resumen de: EP4578724A1
The present disclosure relates to an apparatus and method for controlling an internal environment of a battery pack (100) and is directed to providing a method for effectively controlling an internal environment of a battery pack (100) by accurately calculating a dew point based on an internal temperature and humidity of a battery pack (100) and performing cooling or heating according to a change in current temperature to prevent generation of dew condensation and minimize damage due to the humidity. To this end, the present disclosure includes a temperature sensor (241) which measures an internal temperature of a battery pack (100), a humidity sensor (242) which measures an internal humidity of the battery pack (100), a heating apparatus (280) which increases the internal temperature of the battery pack (100), and a processor (210) which controls an internal environment of the battery pack (100) by calculating a dew point based on the measured temperature and humidity, setting a threshold value based on the dew point, determining whether a current temperature reaches the threshold value according to changes in the temperature and the humidity, and applying a control signal to the heating apparatus (280) such that the current temperature does not reach the threshold value.
Resumen de: EP4579894A1
This application discloses a secondary battery and an electronic device. The secondary battery includes a housing, an electrode assembly, and a current collector plate. The current collector plate is electrically connected to the electrode assembly. The bottom of the housing includes a main body zone and a thinned zone connecting to the main body zone, and the thinned zone is electrically connected to the current collector plate. Area of the thinned zone accounts for 2% to 30% of total area of the bottom of the housing. In this application, the thinned zone is provided in a middle zone of the bottom of the housing and connects to the current collector plate via laser welding, so that the thinned zone can significantly reduce welding power during welding at the bottom, broadening a welding window and effectively improving welding yield at the bottom of the battery. In addition, the technical solution disclosed in this application has wide applicability and can be applied to housings of various sizes and thicknesses, all of which can implement a high welding yield.
Resumen de: EP4579878A1
Embodiments of this application provide a battery and an electric device. The battery includes a battery cell and a thermal management component. The thermal management component is opposite the battery cell along a first direction and connected to a first wall of the battery cell, the first wall is a wall with a largest surface area of the battery cell, and the first direction is perpendicular to the first wall. The thermal management component includes a flow channel, and the flow channel is used for accommodating a heat exchange medium, so as to regulate a temperature of the battery cell; where the flow channel is configured to provide a swelling space for the battery cell. The battery and the electric device in the embodiments of this application can improve the reliability of the battery.
Resumen de: EP4579911A1
The present disclosure discloses a battery module with enhanced safety. A battery module according to an aspect of the disclosure includes a cell stack including: a plurality of battery cells stacked in at least one direction; and a module case configured to accommodate the cell stack, wherein the at least one of the plurality of battery cells includes a coating layer on the surface thereof.
Resumen de: EP4579872A1
A thermal management system for battery, a battery (300), and an electric apparatus (1000) are provided, where the thermal management system includes a thermal management system body and a monitoring tube (100). The thermal management system body includes a medium pipe (200) for circulating a heat exchange medium, where the medium pipe (200) is provided with an inlet end (51) and an outlet end (52), and the detachable monitoring tube (100) is disposed on at least one of the inlet end (51) and the outlet end (52).
Resumen de: EP4578996A2
One embodiment of the present disclosure provides a copper foil including a copper film including a matte surface and a shiny surface, wherein a hydrogen vacancy density at a depth of 30 nm to 45 nm from the matte surface ranges from 80 to 250 counts, a hydrogen vacancy density at a depth of 30 nm to 45 nm from the shiny surface ranges from 3 to 20 counts. The hydrogen vacancy density refers to the number of hydrogen ions measured at a certain sputter depth from each of the matte surface and the shiny surface using time of flight-secondary ion mass spectrometry (TOF-SIMS).
Resumen de: EP4578998A2
One embodiment of the present disclosure provides a copper foil including a copper film including 99.9 wt% or more of copper, and a protective layer disposed on the copper film, wherein the copper foil has a room-temperature thermal deformation index ranging from 15 to 50. The room-temperature thermal deformation index is expressed by Equation 1 below, room-temperature thermal deformation index = (room-temperature thermal expansion coefficient (ppm/°C) + room-temperature elongation (%))/surface area ratio.
Resumen de: EP4579002A2
One embodiment of the present disclosure provides a copper foil including a copper film having a matte surface and a shiny surface, and a protective layer disposed on the copper film, wherein the copper film includes copper and non-copper elements, and the non-copper elements include carbon (C), nitrogen (N), and oxygen (O).
Resumen de: EP4579895A1
A cylindrical battery is provided. The cylindrical battery includes includes a plurality of positive electrode sheets and a plurality of negative electrode sheets. The plurality of positive electrode sheets and the plurality of negative electrode sheets are alternately stacked along a height direction of the cylindrical battery, with a diaphragm provided between every two adjacent positive electrode sheet and negative electrode sheet. The cylindrical battery further includes a positive electrode current collecting column. The positive electrode current collecting column penetrates the plurality of positive electrode sheets, the plurality of negative electrode sheets and the plurality of diaphragms along an axial direction of the cylindrical battery. The positive electrode sheets are electrically coupled to the positive electrode current collecting column. The positive electrode current collecting column is electrically coupled to a top cover. The negative electrode sheets are electrically coupled to a housing.
Resumen de: EP4579896A1
An explosion-proof structure, a battery, and a battery pack are provided. The explosion-proof structure includes a cover plate (110) and an explosion-proof groove (120) including one or more first sub-grooves (121) and one or more second sub-grooves (122). H1
Resumen de: EP4579914A1
A cover plate, a battery, and a battery pack are provided. The cover plate includes a body (111) and an explosion-proof (120). The body includes a first sub-part (113) and a second sub-part (114). The second sub-part (114) includes a sinking table (1141) and a boss (1142) connected. The second sub-part (114) includes a first side surface (1143) and a second side surface (1144) disposed oppositely. The boss (1142) is higher than the sinking table (1141) and the first sub-part (113). The explosion-proof groove (120) is disposed on the first side surface (1143). A first sub-groove (121) of the explosion-proof groove (120) is at least partially located on the sinking table (1141). A second sub-groove (122) of the explosion-proof groove (120) is located on the boss (1142).
Resumen de: EP4578827A1
The present invention relates to a carbon nanotube dispersion and a preparation method thereof, wherein the carbon nanotube dispersion includes carbon nanotubes, a first dispersant which is carboxyalkyl cellulose having a weight average molecular weight of 9,000 g/mol or less, a second dispersant which is polyvinyl butyral (PVB), and a solvent, and the carbon nanotube dispersion of the present invention has a low initial viscosity and a low viscosity change rate, and thus, is excellent in storage stability and processability.
Resumen de: EP4579798A1
A negative electrode active material comprises a carbon-based material and a silicon-based material, wherein a first functional group exists on the surface of the carbon-based material, a second functional group exists on the surface of the silicon-based material, and the first functional group has a charge opposite to that of the second functional group.
Resumen de: EP4579197A1
A device for measuring a flow rate of gas in a secondary cell according to an embodiment of the present disclosure includes a chamber accommodating the secondary cell, and a flow rate measurement unit connected to an outlet of the chamber and having a shape of a pipe.
Resumen de: EP4579868A1
A battery pack according to an embodiment of the present disclosure includes one or more first battery modules comprising a plurality of battery cells, and one or more second battery modules respectively disposed adjacent to the first battery modules and comprising a plurality of battery cells, wherein the first battery modules and the second battery modules are different from each other in a maximum state of charge (SOC).
Resumen de: EP4579937A1
A polyphenylene sulfide resin composition for a battery insulation member, including: a polyphenylene sulfide resin (a); and a silicone elastomer with crosslinked structure (b), wherein the resin composition comprises 0.1 to 15.0 parts by weight of the silicone elastomer with crosslinked structure (b) with respect to 100 parts by weight of the polyphenylene sulfide resin (a), and has a flexural modulus of 3.1 GPa or more and 3.6 GPa or less in the flexural test in accordance with ISO 178 (2010) on a test piece obtained by injection molding of the resin composition. A polyphenylene sulfide resin composition for a battery insulation member, and a battery insulation member, which combine excellent productivity, safety, and long-term reliability can be obtained.
Resumen de: EP4578997A2
One embodiment of the present disclosure provides a copper foil including a copper film including 99.9 wt% or more of copper, and a protective layer disposed on the copper film, wherein the copper foil has a first room-temperature thermal expansion coefficient of 10 ppm/°C to 25 ppm/°C and a high-temperature thermal expansion coefficient of 20 ppm/°C to 35 ppm/°C. The first room-temperature thermal expansion coefficient is a thermal expansion coefficient measured in a machine direction (MD direction), and the high-temperature thermal expansion coefficient is a thermal expansion coefficient measured in the MD direction after heat-treating the copper foil at 190 °C.
Resumen de: EP4578999A2
One embodiment of the present disclosure provides a copper foil including a copper film including 99.9 wt% or more of copper, and a protective layer disposed on the copper film, wherein the copper foil has a first moisture absorption rate of 0.1% or less. The first moisture absorption rate is expressed by Equation 1 below, first moisture absorption rate=(weight after 24-hour immersion-weight before immersion)/(weight after 24-hour immersion)x100 wherein the immersion in Equation 1 refers to immersing a specimen in water at room temperature for 24 hours.
Resumen de: EP4578826A1
The present invention relates to a carbon nanotube dispersion and a preparation method thereof, wherein the carbon nanotube dispersion includes carbon nanotubes, a first dispersant which is a cellulose-based dispersant, a second dispersant containing hexafluoropropylene (HFP) as a repeating unit, and a solvent, and the carbon nanotube dispersion of the present invention has a low initial viscosity and a low viscosity change rate, and thus, is excellent in storage stability and processability.
Resumen de: EP4579934A1
A battery pack connector and a battery pack are provided. The connector may be configured to electrically connect a battery module inside the battery pack with an electric device outside the battery pack and include an insulation base (100) and a connection portion (200). The insulation base (100) may be provided with a first through hole (110). The connection portion (200) may be embedded in the first through hole (110) and fixed to the insulation base (100), and both ends of the connection portion (200) extend out of the insulation base (100).
Resumen de: EP4579843A1
An aluminum battery includes a positive electrode (120), a negative electrode (110), a separator, and an electrolyte (130). The separator is disposed between the positive electrode (120) and the negative electrode (110). The electrolyte (130) is impregnated into the separator, the positive electrode (120), and the negative electrode (110). The electrolyte (130) includes aluminum halide, ionic liquid, and an additive, and the additive includes an isocyanate compound.
Resumen de: EP4579812A1
A positive electrode active material for a lithium ion battery, represented by the formula: LiaNi(1-b-c-d)CobMncMgdO2(wherein, in the formula, 0.98≤a≤1.09, 0.06≤b≤0.21, 0.02≤c≤0.32, 0.00005≤d≤0.003), having a 50% cumulative volumetric particle size D50 of 3.0 to 11.0 µm, a tap density of 2.0 to 2.6 g/cc, and a c-axis lattice constant of 14.184 to 14.240 Å.
Resumen de: EP4578794A1
A package structure for a battery pack is provided. The package structure for the battery pack includes a tray structure and a cover body, the tray structure includes a tray body and a support portion. At least a part of the support portion protrudes from a periphery of the tray body in a planar extension direction of the tray body. The support portion cooperates with the tray body to form a groove located at the periphery of the tray body. The cover body is arranged on a first side of the tray body. A cavity is formed on a side, facing the tray body, of the cover body. The battery pack is located on the first side of the tray body and is accommodated in the cavity. At least a part of the cover body is lapped with the groove, and the tray body is accommodated in the cavity.
Resumen de: EP4579783A1
This application provides an electrochemical apparatus and an electronic apparatus, the electrochemical apparatus including a positive electrode plate, where the positive electrode plate includes a positive electrode current collector and a positive electrode active material layer disposed on one or two sides of the positive electrode current collector, and the positive electrode active material layer includes a positive electrode active material. A ratio of Dv99 of the positive electrode active material to thickness H1 of the positive electrode active material layer on a single side satisfies 0.5 ≤ Dv99/H1 ≤ 0.9. Agglomeration regions with a bright spot having a diameter D0 greater than or equal to 20 µm are observed on surface of the positive electrode active material layer under a scanning electron microscope, and the agglomeration regions have a number density less than or equal to 5 pcs/cm<2> per unit area on the surface of the positive electrode active material layer. The electrochemical apparatus has good high-temperature cycling performance.
Resumen de: EP4578711A1
A vehicle charging method, a vehicle charging apparatus, an electronic device and a computer-readable storage medium which are applied to a charging management service platform including at least two parking spaces (A1, B3), where each of the at least two parking spaces is preset with a wireless charging coil, where the wireless charging coils preset in different parking spaces may be connected through one or more relay switches, and the vehicle charging method includes: obtaining a wireless charging request corresponding to a first vehicle parked in a first parking space (A1); and in response to the wireless charging request, determining a second parking space (B3) where a second vehicle satisfying a charging condition for the first vehicle is located, and turning on the relay switch of the one or more relay switches between a first wireless charging coil preset in the first parking space (A1) and a second wireless charging coil preset in the second parking space (B3) where the second vehicle is located, such that the second vehicle parked in the second parking space (B3) wirelessly charges the first vehicle through the second wireless charging coil. Therefore, quick and convenient charging can be provided for the first vehicle.
Resumen de: EP4579807A1
The present application discloses a lithium-manganese-nickel-containing composite oxide and a preparation method therefor, a positive electrode plate, a battery, and a power consuming device. The lithium-manganese-nickel composite oxide is in a spinel crystal form, and the ratio of the peak intensity I111 of the (111) peak to the peak intensity I400 of the (400) peak in an X-ray diffraction pattern of the lithium-manganese-nickel composite oxide is 2.1 ≤ I111/I400 ≤ 3.3, wherein the diffraction angle of the (111) peak is 20 = 18° - 19.5°, and the diffraction angle of the (400) peak is 20 = 43.5° - 45°. In the above manner, the technical solution of the present application can improve the stability of the positive electrode active material, thereby improving the overall performance of the battery.
Resumen de: EP4579260A1
A failure detection method for battery racks (100, 400) is disclosed and includes: continuously computing a voltage difference data in a computation frequency; computing a standard deviation by using the voltage difference data retrieved from each battery rack (100, 400) up to present; obtaining a first voltage trend and a second voltage trend according to the voltage difference data in a first period and the voltage difference data in a second period when the standard deviation is greater than a preliminary-filtered threshold; computing an intersection of the first voltage trend and the second voltage trend to obtain a voltage trend status; computing a voltage slope according to the voltage difference data of the second period; and generating an alarm message when the voltage trend status is abnormal and the voltage slope is greater than a slope threshold, where the alarm message indicates the position of a battery cell (120, 420) occurring overvoltage status.
Resumen de: EP4580129A1
Disclosed is an apparatus for requesting battery information, which includes a communication unit configured to communicate with a battery information provision device; a target determination unit configured to determine target information to be obtained and determine a target battery for which the target information is to be obtained from a preset battery list; and a control unit configured to generate a request packet including target battery information about the target battery and the target information, transmit the generated request packet to the battery information provision device through the communication unit, and receive a response packet including battery information of the target battery corresponding to the target information from the battery information provision device through the communication unit in response to the request packet.
Resumen de: EP4579870A1
A battery pack includes a battery pack case, a switch device (10), and a plurality of battery cell units. The plurality of battery cell units are arranged in the battery pack case, a positive electrode of each of the battery cell units is configured to be electrically connected to a positive terminal of the power distribution unit, and a negative electrode of each of the battery cell units is configured to be electrically connected to a negative terminal of the power distribution unit. In addition, the plurality of battery cell units are sequentially arranged in a series circuit of the battery pack, and two ends of the series circuit are respectively connected to the positive terminal and the negative terminal of the power distribution unit. The switch device (10) is arranged in the series circuit for connecting or disconnecting the series circuit.
Resumen de: EP4579830A1
The present invention relates to a method for manufacturing a secondary battery, which includes a process of preparing a pouch case provided with an accommodation part, in which an electrode assembly is accommodated, and a collection part which communicates with the accommodation part and in which a gas generated during a charging/discharging process for activation is collected, a process of forming an opening in the collection part to discharge the gas collected in the collection part, a process of pressing at least a portion of edges of the pouch case to the outside of the pouch case, and a process of forming a main sealing part for separating and sealing the accommodation part from the collection part between the accommodation part and the collection part after pressing the pouch case or in the state of pressing the pouch case.
Resumen de: EP4579779A1
A positive electrode for a nonaqueous electrolyte energy storage device according to one aspect of the present invention includes a positive electrode substrate containing metallic aluminum, and a positive active material layer stacked on the positive electrode substrate. An elongation at break of the positive electrode substrate is 3.8% or less. The average thickness of the positive active material layer is 35 µm or less. A 180° peel strength between the positive active material layer and the positive electrode substrate is 0.6 N/mm or more.
Resumen de: EP4579818A1
A battery adhesive, a preparation method therefor, and a lithium-ion battery. The battery adhesive comprises the following components in parts by weight: 70-90 parts of a first component and 10-30 parts of a second component; wherein the preparation raw materials of the first component comprise isocyanate, a first monomer, and a second monomer; the first monomer is selected from an aromatic dihydric phenol and/or an aromatic diamine; the second monomer is a reactive long carbon chain polymer; and the second component is an acrylonitrile copolymer. The battery adhesive has a relatively low swelling rate and relatively strong bonding capabilities in an electrolyte, resulting in better electrical performance in a prepared lithium ion battery.
Resumen de: EP4579929A1
This application relates to a battery cell, a battery, and an electric device. The battery cell includes an end cover assembly (21), a tab bracket (22), a fixing member (23), a housing (24), and an electrode assembly (25). The housing (24) has an opening. The end cover assembly (21) closes the opening of the housing (24). The electrode assembly (25) is provided in the housing (24) and provided with a tab (251). The tab bracket (22) is provided on a side of the end cover assembly (21) facing the electrode assembly (25), where the tab (251) is bent around the tab bracket (22). The fixing member (23) is configured to fix the tab bracket (22) to the end cover assembly (21).
Resumen de: EP4579917A1
The present disclosure includes a battery pack and a device including the same. The battery pack according to one embodiment of the present disclosure comprises at least one or more battery modules that includes a battery cell stack in which a plurality of battery cells are stacked and a module frame that houses the battery cell stack; a first pack frame on which the battery module is mounted; a second pack frame located while covering the battery module; and a venting part provided on one surface of the first pack frame, wherein the venting part communicates with a venting path that is formed by a plurality of partition members located on the first pack frame.
Resumen de: EP4579858A1
The present disclosure relates to a method for manufacturing a secondary battery, and an electrode active material layer may be activated by spraying an aqueous solvent onto a surface of the electrode active material layer before laminating an electrode and a separator. Accordingly, it may be possible to improve the adhesion strength between the electrode and the separator and improve the capacity retention and rate characteristics, leading to longer life of the battery.
Resumen de: EP4579831A1
A method for manufacturing a power storage module includes a first step of preparing a stack, a second step of installing a resin component having a hole portion into which the detection line is inserted in the stack so as to form a gap with a lead-out portion of the detection line in the sealing body while facing the lead-out portion, and inserting a portion of the detection line led out from the lead-out portion into the hole portion of the resin component, and a third step of forming a filling resin layer integrated with the sealing body by filling a space between the lead-out portion and the resin component with a resin by using a mold, and obtaining a power storage module including the stack, the resin component, and the filling resin layer.
Resumen de: EP4579801A1
The present invention relates to a lithium secondary battery wherein the lithium secondary battery of the present invention includes a negative electrode including a negative electrode composite layer including a negative electrode active material including (i) a first negative electrode active material and (ii) a second negative electrode active material, a negative electrode conductive material, and a negative electrode binder, a positive electrode including a positive electrode composite layer including a positive electrode active material, a positive electrode conductive material, and a positive electrode binder, and an electrolyte, and CFC defined by Equation 1 below is 0.38 to 1.962. CFC = 100×W<sub>c</sub> - {(D<sub>50</sub>, <sub>a1</sub>× D<sub>50</sub>, <sub>a2</sub>×L×R<sub>N/P</sub>×10<sup>10</sup>)/MW<sub>C</sub>} all the variables being described herein.
Resumen de: EP4579880A1
A battery pack case includes an accommodating space for accommodating a plurality of battery cells; a plurality of mutually independent first air passages are provided in the battery pack case, and the battery cells of a plurality of battery cell units (90) are suitable for communicating with the outside of the battery pack through separate first air passages. A battery pack includes a battery pack case and a plurality of battery cell units (90) wherein each battery cell of the plurality of battery cell units (90) communicates with the outside of the battery pack through a separate first air passage and a plurality of battery cell units (90) are provided in the accommodating space.
Resumen de: EP4579935A1
A rechargeable battery includes an electrode assembly, a can accommodating the electrode assembly inside and including a terminal hole, a rivet terminal including a pillar part extending into the terminal hole and a head part coupled to the pillar part, and an insulator between the rivet terminal and the can. The insulator includes a middle part that surrounds the pillar part and extends into the terminal hole, an outer part contacting the head part and the outer surface of the can, and an inner part contacting the inner surface of the can. At least two of the middle part, the outer part, and the inner part include different insulating materials with different heat resistance temperatures.
Resumen de: EP4579915A1
A battery module according to the present disclosure includes: a cell assembly including a plurality of battery cells stacked on each other; a module case configured to store the cell assembly in an inner space and having a venting hole formed thereon; and a cover member disposed on the outer surface of the module case so as to cover the venting hole and including a fire-resistant coating layer coated with a fire-resistant coating material that is detached by pressure of venting gas when the venting gas is generated inside the module case.
Resumen de: EP4579921A1
This application provides a separator, a battery cell, a battery, and a power consuming apparatus. The separator includes a first porous substrate, a second porous substrate, and a first functional layer located between the first porous substrate and the second porous substrate. The first functional layer includes graphene oxide, and the first functional layer is provided with a through hole penetrating in a thickness direction of the first functional layer.
Resumen de: EP4578818A2
A materials handling vehicle including a battery receiving space (130), and a removable battery assembly (200), wherein: the removable battery assembly (200) includes lateral battery faces (202A), each including a longitudinal guide structure (204A); the battery receiving space (130) includes opposing guide blocks (160A, 160B), each arranged on opposite sides of the battery receiving space (130), and each including a securement portion (162B) and a replaceable portion (164B); the replaceable portion (164B) of each guide block (160A, 160B) including a friction-inducing surface (166B) and a guiding surface (168A, 168B); each friction-inducing surface (166B) facing an opposing one of the lateral battery faces (202A); and each guiding surface (168A, 168B) facing an opposing surface of the longitudinal guide structure (204A), with the removable battery assembly (200) seated in the battery receiving space (130).
Resumen de: EP4579910A1
A pack case includes a lower housing forming an accommodation space, a lower reinforcement plate mounted in the accommodation space of the lower housing and configured to support at least one cell assembly, and an upper housing coupled to the lower housing to seal the accommodation space, wherein a mechanical strength of the lower housing is smaller than a mechanical strength of the lower reinforcement plate.
Resumen de: EP4579833A1
The present invention relates to a battery for a secondary battery, and more particularly to a battery for a secondary battery comprising a compression pad inside a case.
Resumen de: EP4579808A1
Provided is a positive electrode active material which contributes to improvement in the charging and discharging efficiency of a nonaqueous electrolyte secondary battery. A positive electrode active material included in this nonaqueous electrolyte secondary battery contains a composite metal oxide containing at least one element selected from the group consisting of Li, B, Na, Mg, Al, Si, P, K, Ti, Mn, Fe, Co, Zr, Nb, Mo, Sn, W, and Bi. The composite metal oxide includes secondary particles formed by aggregating primary particles. In each of the secondary particles, the proportion of the primary particles having an aspect ratio of at least 2 is 35% or more with respect to the total number of the primary particles. A surface modification layer which contains Ca and/or Sr is present on the surfaces of the primary particles, including the surface of the secondary particle.
Resumen de: EP4579797A1
A negative electrode material is provided, including a carbon-based material. In a thermogravimetric test, the negative electrode material has an exothermic peak within a temperature range of 600°C to 800°C in an air atmosphere. The negative electrode material of this application has excellent kinetic performance, thereby effectively improving discharge rate performance of a secondary battery including the negative electrode material.
Resumen de: EP4579769A1
A negative electrode material is provided, containing a carbon-based material. In an X-ray diffraction pattern of the negative electrode material tested by X-ray diffractometry, a diffraction peak a is exhibited at a diffraction angle 2θ of 43° to 44°, a diffraction peak b is exhibited at a diffraction angle 2θ of 45° to 47°, an intensity of the diffraction peak a is Ia, and an intensity of the diffraction peak b is Ib, satisfying: Ia/Ib > 1. The negative electrode material of this application exhibits excellent kinetic performance, and therefore, can effectively reduce the internal resistance of a secondary battery containing the negative electrode material and enhance overall performance of the secondary battery. A secondary battery containing the negative electrode material is also provided.
Resumen de: EP4579905A1
An electrochemical apparatus (100) includes a housing (10), a conductive member (20), an electrode assembly (30), and an insulating member (40). The housing (10) has a first wall (11), and the first wall (11) is provided with a first through hole (111). The conductive member (20) covers the first through hole (111). The electrode assembly (30) is accommodated in the housing (10) and is electrically connected to the conductive member (20). The insulating member (40) is arranged between the conductive member (20) and the first wall (11), the insulating member (40) has a second through hole (41), and along a first direction (X), at least a part of a projection of the conductive member (20) is located within both the first through hole (111) and a second through hole (41). A surface of the first wall (11) facing the conductive member (20) and/or a surface of the conductive member (20) facing the first wall (11) is provided with a convex portion (50).
Resumen de: EP4579768A1
This application provides an electrochemical apparatus and an electronic apparatus. With the use of the positive electrode current collector provided in this application, with an inactive material layer provided on a second surface of a single-sided region of the positive electrode current collector, and in conjunction with the electrolyte of this application, after the electrochemical apparatus has undergone charge-discharge cycles, the risks of abnormality in the positive electrode plate and lithium precipitation in the negative electrode plate are lowered, thereby lowering the risk of failure of the electrochemical apparatus during the charge-discharge cycles.
Resumen de: WO2024042512A1
Metal-air cells, battery stacks, battery system and methods of forming the anodes within the metalair cells without dismantling the cell are provided. The anodes include metal mesh(es) as current collector(s) and concentrated slurry comprising metal granules suspended in electrolyte, in electrical contact with the current collector(s). The concentration of the slurry is carried out by circulating it through a cell space between cathode(s) and the metal mesh(es), which are configured to increase the concentration of the metal granules accumulating thereupon. The rise in required circulation pressure (or the corresponding time period and/or changes in conductivity related thereto) is used to indicate the completion of the anode formation process. One- and two- dimensional implementations of cells are provided, and discharging efficiency may be enhanced by circulating the electrolyte during discharging.
Resumen de: EP4579778A1
This application discloses a cylindrical cell and a cylindrical secondary battery, where the cylindrical cell includes a first electrode plate, a separator, and a second electrode plate. The first electrode plate includes a first current collector, the first current collector is provided with a first blank foil region along an axial direction of the cylindrical cell, and the first blank foil region has a first chamfer at a terminating end of a winding direction of the cylindrical cell; and/or the second electrode plate includes a second current collector, the second current collector is provided with a second blank foil region along an axial direction of the cylindrical cell, and the second blank foil region has a second chamfer at a terminating end of a winding direction of the cylindrical cell. In this application, lengths of a first distance and a second distance of the first chamfer and/or the second chamfer are controlled to be within appropriate ranges. This can avoid that a sharp corner at a terminating position after flattening is too large and thereby prevents the sharp corner from piercing through the insulating adhesive paper to cause short circuit with a housing, thereby helping improve the safety performance of the battery.
Resumen de: EP4579256A1
A method and apparatus for correcting a capacity of a battery module and a computer device are provided. The method includes: obtaining a discharge voltage value of the battery module; determining the discharge voltage value as an initial voltage indicator if it is within a dynamic voltage range of fully discharging; obtaining an initial charging capacity corresponding to the initial voltage indicator; obtaining a charging voltage value; determining the charging voltage value as a final voltage indicator if it is within a dynamic voltage range of fully charging; obtaining a final charging capacity corresponding to the final voltage indicator; determining a total capacity based on the initial and final charging capacity; and correcting the capacity based on the total capacity to obtain a corrected capacity of the battery module. This method ensures the consistency of the capacity of each module in the system and improves the user experience.
Resumen de: EP4579821A1
This application provides a composite current collector, a positive electrode sheet, an electrochemical device, and an electric apparatus. The composite current collector includes a metal substrate layer and a functional layer located on a surface of the metal substrate layer; where the functional layer is analyzed using an energy dispersive spectrometer, and based on a total number of atoms of the C element, the O element, and a metal element in the functional layer, an atomic percentage of the C element in the functional layer is x, an atomic percentage of the O element in the functional layer is y, and an atomic percentage of the metal element in the functional layer is z, satisfying: 5%≤x≤25%, 10%≤y≤30%, and 55%≤z≤85%. The functional layer with specific element contents on the surface of the metal substrate layer, a coverage of a coating on a surface of the composite current collector can be effectively improved while electrical performance is ensured, thereby improving the safety of the electrochemical device.
Resumen de: EP4579903A1
This application provides a battery cell, a battery, and an electrical device, and relates to the technical field of batteries. The battery cell includes a shell, an electrode terminal, and a first blocking piece. The electrode terminal is disposed on a wall portion of the shell. A sidewall of a receptacle of the electrode terminal includes a first weld face. The first blocking piece is at least partially accommodated in the receptacle. The first blocking piece includes a second weld face. A welding clearance is formed between the second weld face and the first weld face. The first blocking piece is welded to the electrode terminal to form a welding portion. The welding portion is at least partially located within the welding clearance. Because the welding portion does not exceed the first surface, the welding portion will not interfere with a busbar component when the busbar component is welded to the first surface, thereby forming a stable connection between the busbar component and the first surface, and improving the stability of electrical energy output by a battery containing the battery cell.
Resumen de: EP4579916A1
The present application provides an energy storage device and an energy storage system. The energy storage device includes a battery rack; a battery pack disposed on the battery rack, where each battery pack includes a housing and a pressure relief valve disposed on the housing, a side of the housing is disposed with a through hole; a gas collecting component including a ventilation pipe and a gas extracting apparatus, where the ventilation pipe is connected to the housing of each battery pack and covers the pressure relief valve, the gas extracting apparatus is configured to discharge gas discharged from the battery pack into the ventilation pipe after the pressure relief valve is opened.
Resumen de: EP4579920A1
A battery module according to the present disclosure may include: a module case; a plurality of battery cells accommodated inside the module case and arranged to be stacked in one direction; a bus-bar frame configured to support a bus-bar connected to electrode leads of the battery cells; and a flame emission blocking unit connected to the bus-bar frame and disposed on the plate surface of the bus-bar frame and the upper surface of the battery cells so as to block flame from being discharged to the front and rear surfaces of the battery cells, where the electrode leads are located, and/or the upper surface of the battery cells.
Resumen de: EP4579897A1
An explosion-proof structure and a battery are provided. The explosion-proof structure includes a cover plate, and an explosion-proof groove is provided on the cover plate. The explosion-proof groove includes a first sub-groove and a second sub-groove, a projection of the first sub-groove and a projection of the second sub-groove on a side of the cover plate encloses a closed ring, and a thickness of the cover plate at the position where the first sub-groove is located is less than a thickness of the cover plate at the position where the second sub-groove is located. The present application improves the reliability of the cover plate and ensures the explosion-proof effect.
Resumen de: EP4579923A1
A separator according to the present disclosure has an organic/inorganic composite porous coating layer on a surface of a polymer substrate, wherein the organic/inorganic composite porous coating layer includes a first region including a larger amount of inorganic particles and a second region including a smaller amount of inorganic particles so that heat resistance at the side of the battery is improved by the first region, thereby solving a short circuit problem caused by shrinkage at two ends of the separator.
Resumen de: EP4579859A1
A secondary battery and an electrical apparatus are provided. The secondary battery includes an electrode assembly (1) and an electrolyte. The electrode assembly (1) includes a positive electrode plate (2), a negative electrode plate (3), and a separator (4). The separator (4) includes a substrate layer (41) and a first adhesive layer (42). The substrate layer (41) includes a third surface (411) and a fourth surface (412) opposite each other. The third surface (411) faces the negative electrode plate (3). The first adhesive layer (42) is disposed on the third surface (411) and is of a striped structure. A part of the separator (4) extending beyond the negative electrode plate (3) is defined as a separator extension part (5). The first adhesive layer (42) is at least partially located on the separator extension part (5). A peel strength between the separator (4) and the first negative electrode material layer (32) is a N/m, and a peel strength between the first negative electrode material layer (32) and the negative electrode current collector (31) is b N/m, where 6.0≤a≤15.0, and a
Resumen de: EP4579811A1
This application provides a lithium-rich metal oxide and a preparation method thereof, a positive electrode plate, a battery cell, and a battery, and relates to the field of battery technology. The lithium-rich metal oxide includes a lithium-rich metal oxide core and residual lithium on a surface of the lithium-rich metal oxide core. Based on 100 wt% as a total mass of the lithium-rich metal oxide, a mass percent k of the residual lithium satisfies: k ≤ 0.5 wt%, and a lithium-ion diffusion coefficient D of the lithium-rich metal oxide satisfies: D ≥ 1.0 × 10<-15> cm<2>/s. When applied to a battery cell, the lithium-rich metal oxide of this application improves performance of the battery cell.
Resumen de: EP4579781A1
An electrode assembly, a battery cell, a battery, an electric device, a positive electrode plate, and a preparation method thereof are provided. The positive electrode plate (31) includes: a positive electrode current collector (10); and a positive electrode active material layer (20), disposed on at least a part of a surface of the positive electrode current collector (10). The positive electrode active material layer (20) includes at least two positive electrode active material segments arranged along a length direction (d<sub>L</sub>) of the positive electrode current collector (10), and a specific surface area of a positive electrode active material contained in a part of the at least two positive electrode active material segments is greater than a specific surface area of a positive electrode active material contained in another part of the at least two positive electrode active material segments.
Resumen de: EP4579888A1
A secondary battery is disclosed. The secondary battery includes an electrode assembly, a case including an opening for insertion of the electrode assembly, and a cap plate including a bonding area welded to the case and closing the opening. The bonding area may include one or more support surfaces in contact with and supported by the case; and one or more chambers formed with a portion of the bonding area spaced apart from the case by the support surface.
Resumen de: EP4579893A1
The embodiments of the present disclosure provide a battery cell, battery, and electrical device, relating to the field of battery technology. The battery cell comprises a casing, an electrode assembly, an electrode terminal, and a sealing component. The casing is provided with a wall portion, and the electrode assembly is accommodated inside the shell. The electrode terminal is arranged on the wall portion. The electrode terminal is provided with a stepped hole. Along the thickness direction of the wall portion, the electrode terminal is provided with a first surface that is farthest from the electrode assembly. The stepped hole comprises a first hole segment and a second hole segment that are continuously arranged. The first hole segment is arranged on the first surface, and the second hole segment is arranged on a side of the first hole segment that is closer to the electrode assembly. The sealing component is at least partially positioned within the second hole segment, and the sealing component is welded and connected to the electrode terminal, forming a welding portion at the welding location. The first hole segment is configured to accommodate at least a portion of the welding portion so that the welding portion does not protrude from the first surface. The battery cell with such a structure has the ability to achieve a stable electrical connection with external components, and thus a stable electrical connection between external components and the electrode terminal c
Resumen de: EP4579899A1
The embodiments of the present disclosure provide an end cover, battery cell, battery and electrical device, which belong to the field of battery technology. An end cover is configured to close an opening of housing of battery cell, wherein the end cover includes an abutting portion and a first convex portion. The abutting portion includes an abutting surface, wherein the abutting surface is configured to abut against one end of the housing provided with the opening. The first convex portion is connected to the abutting portion and protrudes from the abutting surface. The first convex portion is configured to extend into the housing. The groove is arranged on the abutting surface, and the groove is arranged around the first convex portion. An external peripheral surface of the first convex portion is connected to the abutting surface through the groove wall surface of the groove, which reduces the risk that the rounded corner is formed at the connection position of the external peripheral surface of first convex portion and the abutting surface to cause the interference between the end cover and the housing, so that the abutting surface can abut against one end of the housing provided with the opening, thereby improving the firmness between the end cover and the housing after connected.
Resumen de: EP4579912A1
The present application relates to the technical field of batteries, and provides a battery cell, a battery, an energy storage apparatus, and an electrical apparatus. The battery cell comprises a housing and a pressure relief member. The housing has a first wall, and the first wall has a first side surface facing the interior of the battery cell. The pressure relief member is disposed on the first wall. The pressure relief member has a weak structure. The pressure relief member is configured to relieve the internal pressure of the battery cell. In the thickness direction of the first wall, the weak structure does not go beyond the first side surface in a direction toward the interior of the battery cell. The structure can well protect the weak structure of the pressure relief member, to prevent abrasion or damage to the weak structure of the pressure relief member caused when the weak structure projects out of the first side surface during assembly or stacking storage of the battery cell, so as to prolong the service life of the pressure relief member and improve use reliability of the pressure relief member, thereby ensuring normal use of the pressure relief member, and lowering the risk of early functioning of the pressure relief member.
Resumen de: EP4579933A1
The present disclosure relates to an electrode for a secondary battery and a secondary battery comprising the same, and the present disclosure provides an electrode for a secondary battery includes a first surface and a second surface, positioned opposite to the first surface, wherein the first surface includes a first active portion in which an electrode active material layer is formed on an electrode current collector and a first uncoated portion in which an electrode active material layer is not formed, wherein the second surface includes a second active portion in which an electrode active material layer is formed on an electrode current collector, and a second uncoated portion in which an electrode active material layer is not formed, independently of the first surface, wherein the first surface includes a first active portion insulating layer formed on the first active portion and a first uncoated portion insulating layer formed on the first uncoated portion, wherein the second surface includes a second active portion insulating layer formed on the second active portion and a second uncoated portion insulating layer formed on the second uncoated portion, and wherein a position of an end of the first active portion insulating layer and a position of an end of the second active portion insulating layer are different.
Resumen de: EP4579925A1
The present disclosure provides a connecting unit, a busbar (200), and a battery module (300). The connecting unit is configured to connect battery cells (100). The battery cells (100) include at least a first battery cell (11) and a second battery cell (12). The connecting unit includes a first positive connecting part (21) configured to detachably connect a positive terminal (111) of the first battery cell (11) and electrically connected to the positive terminal (111) of the first battery cell (11); and a first negative connecting part (31) configured to detachably connect a negative terminal (133) of the second battery cell (13) and electrically connected to the negative terminal (133) of the second battery cell (13). The first negative connecting part (31) is connected to the first positive connecting part (21).
Resumen de: EP4579845A1
There are provided a sulfide-based solid electrolyte with improved lithium ionic conductivity, a method for preparing the sulfide-based solid electrolyte and an all-solid-state battery including the sulfide-based solid electrolyte. The present disclosure relates to a sulfide-based solid electrolyte comprising a thio-LISICON Region II-type crystalline phase, wherein the sulfide-based solid electrolyte is glass-ceramic, wherein the sulfide-based solid electrolyte is represented by chemical formula (100-x){(0.75+y/(100-x))Li2S-0.25P2S5}-xLiHa, wherein in the chemical formula, the Ha is at least one selected from halogen elements, and wherein 15≤x≤30 and 0 < y < 2.25 are satisfied.
Resumen de: EP4579856A1
This application discloses a secondary battery and an electric apparatus. The secondary battery includes a positive electrode plate, a negative electrode plate, an electrolyte, and a separator sandwiched between the positive electrode plate and the negative electrode plate. The positive electrode plate includes a positive electrode active material. The positive electrode active material includes LiFexM(1-x)PO4, where 0
Resumen de: EP4579913A1
The embodiments of the present disclosure provide a pressure relief component, a battery cell, a battery, and an electrical device, relating to the technology field of batteries. The pressure relief component is configured for a battery cell. The pressure relief component is provided with a nick groove. At least two protrusions are arranged within the region enclosed by the nick groove, wherein the protrusions protrude from one side of the pressure relief component in a thickness direction, and the protrusions are recessed on the other side of the pressure relief component in the thickness direction. The battery cell comprising the pressure relief component has high reliability.
Resumen de: EP4579803A1
This application discloses a negative electrode material and a preparation method thereof, a battery, and an electrical device. The negative electrode material includes porous carbon. The porous carbon includes iron and/or sulfur. An active material is included in pores of the porous carbon. In this way, this application endows the negative electrode material with high conductivity, small volume expansion, and high surface activity, thereby endowing the battery with a high capacity and excellent C-rate performance and cycle performance.
Resumen de: EP4579792A1
A lithium metal anode protective film includes lithium nitride (Li<sub>3</sub>N) nanoparticles, lithium-magnesium (Li-Mg) alloy nanoparticles, or a combination thereof.The lithium metal anode protective film may induce uniform electrodeposition behavior and distribution of lithium ions, thereby effectively suppressing growth of lithium dendrites during battery a battery charging/discharging process.
Resumen de: EP4579861A1
The embodiments of the present application provide an electrode assembly, a battery cell, a battery, and an electrical device. The electrode assembly comprises: a first pole piece, the first pole piece comprising a plurality of first layered segments and at least one first bent segment; wherein the first bent segment comprises a plurality of first notches arranged along a second direction, the second direction being the direction in which the first bent segment extends; the plurality of first notches comprise first edge notches disposed on two ends of the first pole piece along the second direction, and a first middle notch located in a middle area of the first pole piece; and the length of the first edge notches along the second direction is greater than the length of the first middle notch along the second direction. The electrode assembly, battery cell, battery, and electrical device of the embodiments of the present application improve the machining efficiency and quality pass rate of the electrode assembly.
Resumen de: EP4578710A1
A high-voltage control box includes a control box body, a terminal resistor, and a wiring assembly. A CAN bus and a battery management unit are provided inside the control box body. The CAN bus includes a high wire and a low wire, which are connected to the battery management unit. The terminal resistor is provided inside the control box body. The wiring assembly is installed on a wall of the control box body, and is connected to the high wire, the low wire and the terminal resistor. The terminal resistor is disconnected from the high wire and/or the low wire, and the wiring assembly is configured to be connected with an external electrical connector to enable the terminal resistor to be electrically connected with the high wire and the low wire through the wiring assembly and the external electrical connector.
Resumen de: EP4579995A1
A battery management apparatus includes: a voltage meter that measures voltages of a plurality of batteries connected in series to each other; and a controller that estimates State of Charges (SOCs) of the plurality of batteries based on the measured voltages, and control charge and discharge of the plurality of batteries to make the estimated SOCs of the plurality of batteries fall within a plurality of usable SOC bands preset to correspond to the plurality of batteries.
Resumen de: EP4579771A1
Disclosed in the present disclosure is a positive electrode active material and a lithium-ion battery, the positive electrode active material comprising lithium iron phosphate coated with carbon layer, and an I<sub>D</sub>/I<sub>G</sub> value of the positive electrode active material is 0.75-1.2, wherein a peak intensity at a wave number of 1360 cm<sup>-1</sup> is considered as I<sub>D</sub> and a peak intensity at a wave number of 1580 cm<sup>-1</sup> is considered as I<sub>G</sub> in a Raman spectrum of the positive electrode active material.
Resumen de: EP4579809A1
The present invention relates to a positive electrode active material including: a lithium nickel-based transition metal oxide with a large particle diameter and a lithium nickel-based transition metal oxide with a small particle diameter, wherein the lithium nickel-based transition metal oxide with a large particle diameter is in the form of a secondary particle that is an aggregate of primary particles, and the lithium nickel-based transition metal oxide with a small particle diameter is in the form of at least one of a single particle formed of one nodule and a quasi-single particle that is a composite of 30 or less nodules, and wherein the lithium nickel-based transition metal oxide with a large particle diameter has a D<sub>50</sub> of 5 µm to 30 µm, and a Y value defined by the factors of the particle size distribution characteristics is 2.2 or less. The positive electrode active material is applied to a positive electrode to provide a lithium secondary battery in which the breakage of the positive electrode active material particles is suppressed, thereby improving lifespan and output characteristics and reducing the amount of gas generated.
Resumen de: EP4579785A1
Embodiments of the disclosure include a positive electrode active material, a method of preparing the same, a positive electrode, and a rechargeable lithium battery, the positive electrode active material including particles including a lithium transition metal composite oxide, and a coating layer located on a surface of the particles and including porous graphene.
Resumen de: EP4579805A1
An aluminum battery (100) includes a positive electrode (110), a negative electrode (120), a separator (130), and an aqueous electrolyte (140). The separator (130) is disposed between the positive electrode (110) and the negative electrode (120). The aqueous electrolyte (140) is impregnated into the separator (130), the positive electrode (110), and the negative electrode (120). When the aluminum battery (100) operates, the positive electrode (110) performs an intercalation mechanism, while the negative electrode (120) performs a chelating mechanism.
Resumen de: EP4579784A1
This application discloses a secondary battery and an electric apparatus. The secondary battery includes a battery housing and a positive electrode plate, a negative electrode plate, a separator, and an electrolyte that are disposed within the battery housing. The separator is arranged between the positive electrode plate and the negative electrode plate. The positive electrode plate includes a positive electrode active material layer, and the positive electrode active material layer includes a first positive electrode active material and a second positive electrode active material. The first positive electrode active material includes LiaNibCocM1dM2eOfR'g, where 0.75≤a≤1.2, 0
Resumen de: EP4579840A1
This application discloses a positive electrode plate, a secondary battery, and an electric apparatus. The positive electrode plate includes a positive electrode active material layer, and the positive electrode active material layer includes a first positive electrode active material and a second positive electrode active material. The first positive electrode active material includes LiaNibCocM1dM2eOfR'g, where 075≤a≤1.2, 0
Resumen de: EP4579780A1
This application discloses a negative electrode plate, an electrode assembly, a battery, and an electric apparatus. A coating is provided at an edge of the negative electrode plate, and the coating includes a functional compound, the functional compound being able to react with sodium metal or lithium metal to produce gas.
Resumen de: EP4579810A1
This application discloses a positive electrode material, a preparation method of same, a positive electrode plate, a secondary battery (5), and an electrical device. The positive electrode material includes a ternary positive electrode substrate and optionally a coating layer. The coating layer coats a surface of the ternary positive electrode substrate. The ternary positive electrode substrate includes Li, Ni, Al, and an M element. The M element includes a combination of one or more of Mn, Co, Ti, Zr, W, Nb, Mo, Si, Mg, B, Cr, or Ta. A volume-based particle size distribution curve of the positive electrode material is a bimodal curve. A low-peak particle diameter in the bimodal curve is a first peak diameter, and a high-peak particle diameter in the bimodal curve is a second peak diameter. An average mass percent of Al in positive electrode material particles with a particle size smaller than the first peak diameter is m<sub>1</sub>, and an average mass percent of Al in positive electrode material particles with a particle size larger than the second peak diameter is m<sub>2</sub>, satisfying: m<sub>1</sub> < m<sub>2</sub>.
Resumen de: EP4579850A1
Disclosed are an electrochemical device and an electronic device containing the same. The electrochemical device includes: a positive electrode, a negative electrode, an electrolyte, and a separator, where the positive electrode includes a positive current collector and a first positive active material layer and a second positive active material layer located on the positive current collector, the first positive active material layer is located between the positive current collector and the second positive active material layer, the first positive active material layer contains an element Mn and has a thickness of h1 µm, the second positive active material layer has a thickness of h2 µm, and h1 > h2. The electrochemical device in this application has improved cycle performance, improved storage performance, and improved overcharge test performance as well as reduced impedance.
Resumen de: EP4579860A1
Some embodiments of this application provide an electrode assembly (10), a battery cell, a battery, and an electrical device. The electrode assembly (10) includes at least one first electrode plate (1), where the first electrode plate (1) is bent and includes: a current collector (11); and an active material layer (12), disposed on the current collector (11). The active material layer (12) includes a material-removed region (13) in at least a part of bends of the first electrode plate. The material-removed region (13) extends along a width direction (W) of the first electrode plate (1). A depth of the material-removed region (13) does not exceed a thickness of the active material layer (12) at which the material-removed region is located.
Resumen de: EP4579773A1
The present disclosure has an object to provide a method for manufacturing a positive electrode active material in which performance degradations of a capacity characteristic and an output characteristic are suppressed. The herein disclosed method for manufacturing the positive electrode active material includes a preparation step for preparing an end material of a positive electrode plate containing a positive electrode active material that has never been performing intercalation and deintercalation of a charge carrier, an alkaline liquid immersing step for immersing the end material into an alkaline liquid, a solid-liquid separation step for performing a solid-liquid separation on the alkaline liquid after the alkaline liquid immersing step so as to collect the solid substance, a classifying step for classifying the collected solid substance into a fine particle fraction and a coarse particle fraction, and a baking step for baking the coarse particle fraction.
Resumen de: EP4579924A1
A battery cell (20), a battery (100), and an electrical device are disclosed. The battery cell (20) includes: a shell (23), an electrode assembly (25), an electrode terminal (216), and a current collecting component (211). The shell (23) is configured to accommodate the electrode assembly (25). The electrode assembly (25) includes a tab (251). The electrode terminal (216) is disposed on the shell (23). The current collecting component (211) includes a tab connecting portion (2111) and a terminal connecting portion (2113). The tab connecting portion (2111) is configured to be connected to the tab (251). The terminal connecting portion (2113) is configured to be connected to the electrode terminal (216). The terminal connecting portion (2113) includes a plurality of terminal connecting sub-portions (21137) stacked in layers. Each terminal connecting sub-portion (21137) includes a riveting sub-portion (21151). Any two adjacent riveting sub-portions (21151) are fixed together by riveting.
Resumen de: EP4579940A1
The present application relates to the technical field of batteries, and provides a battery cell, a battery, and an electrical device. The battery cell comprises a casing, an electrode terminal, an electrode assembly, a support frame, and an electrolyte retention layer. The casing is provided with a wall part, and the electrode terminal is arranged on the wall part. The electrode assembly is accommodated in the casing, the electrode assembly is provided with a main body part and a tab, and in the thickness direction of the wall part, the tab protrudes out of the end of the main body part facing the wall part and is connected to the electrode terminal. The support frame is arranged between the wall part and the main body part in the thickness direction of the wall part, and the support frame is configured to support the main body part. The electrolyte retention layer is arranged on the support frame, and the electrolyte retention layer is configured to absorb and store an electrolyte in the casing. The electrolyte located at the bottom of the casing can be absorbed and stored by means of the electrolyte retention layer, so that the phenomenon that the electrolyte flows out of the casing when the bottom of the battery cell is damaged due to impact can be relieved, thereby reducing the risk of use of the battery cell caused by electrolyte leakage, and thus the safety of use of the battery cell can be improved.
Resumen de: EP4579884A1
The invention provides a battery pack and a powered device. The battery pack includes a box, a cell, a liquid cooling plate attached to the cell, a liquid inlet pipe, and a liquid outlet pipe. A bottom guard plate is disposed at the bottom of the box. The cell and the liquid cooling plate are both disposed in the box. A liquid inlet nozzle and a liquid outlet nozzle are disposed in the liquid cooling plate and penetrate the bottom guard plate to the outside of the box. The liquid inlet pipe and the liquid outlet pipe are disposed outside the box. A first quick connector is disposed in the liquid inlet pipe. A second quick connector is disposed in the liquid outlet pipe. The first quick connector is connected to the liquid inlet nozzle. The second quick connector is connected to the liquid outlet nozzle.
Resumen de: EP4579862A1
This application discloses a battery cell, a battery (1), and an electric apparatus. The battery cell includes at least one electrode assembly (10). The electrode assembly (10) includes a positive electrode plate (11), a negative electrode plate (12), a separator (13), and a porous insulation layer (14). The positive electrode plate (11), the separator (13), and the negative electrode plate (12) are stacked and wound. At least a portion of the porous insulation layer (14) is disposed in a bent region (16) of the electrode assembly (10), and the porous insulation layer (14) is disposed between the positive electrode plate (11) and the separator (13) or disposed between the negative electrode plate (12) and the separator (13). Based on the above structure, the service life of the battery cell can correspondingly be prolonged, and the safety of the battery cell can correspondingly be improved.
Resumen de: EP4578825A1
The present invention provides a porous carbon-Ag composite comprising macro porous carbon particles and Ag particles inserted into pores of the carbon, a negative electrode comprising the composite, and a lithium-ion secondary battery comprising the negative electrode.
Resumen de: EP4579800A1
The present invention provides a negative electrode comprising a current collector and an active material layer, wherein the active material layer comprises carbon material particles and metal oxide particles, and a lithium-ion secondary battery comprising the negative electrode.
Resumen de: EP4579806A1
A negative electrode material, a negative electrode plate (101), an electrode assembly (20), a battery (40), and an electrical device (50) are disclosed. The negative electrode material includes a silicon-based material. The silicon-based material includes a porous silicon-based material and a micropowder silicon-based material configured to fill voids between particles of the porous silicon-based material. A volume median diameter of the porous silicon-based material is greater than a volume median diameter of the micropowder silicon-based material. The small-grained micropowder silicon-based material fills the voids between particles of the large-grained porous silicon-based material. The stress generated by the two types of silicon-based materials during intercalation and deintercalation of lithium is relieved by a pore channel structure in the porous silicon-based material and by an interstice between the porous silicon-based material and the micropowder silicon-based material, thereby limiting the expansion of the two types of silicon-based materials to the interior of the two types of silicon-based materials, and reducing the expansion rate of the negative electrode material.
Resumen de: EP4579855A1
This application provides an electrolyte for a sodium secondary battery, a sodium secondary battery, and an electric device. An electrolyte for a sodium secondary battery is provided, where the electrolyte includes an additive, and the additive includes a sulfate ester compound or a sulfonate ester compound. In this application, through the addition of an additive, including a sulfate ester compound or a sulfonate ester compound, in the electrolyte, the high-temperature cycling performance of the battery can be improved, the high-temperature gas generation phenomenon of the battery can be alleviated, and the electrochemical performance and safety performance of the battery can be improved.
Resumen de: EP4579854A1
This application provides an electrolyte for a sodium secondary battery, a sodium secondary battery, and an electrical apparatus. An electrolyte for a sodium secondary battery is provided, where the electrolyte includes an additive, and the additive includes a fluorinated ether compound. In this application, through the addition of an additive, including a fluorinated ether compound, in the electrolyte, the high-temperature cycling performance of the battery can be improved, the high-temperature gas generation phenomenon of the battery can be alleviated, and the electrochemical performance and safety performance of the battery can be improved.
Resumen de: EP4579799A1
The present invention relates to a lithium secondary battery comprising: an electrode assembly comprising a positive electrode comprising a positive electrode active material, a negative electrode comprising a negative electrode active material, and a separator disposed between the positive electrode and the negative electrode; an electrolyte; and a battery case accommodating the electrode assembly and the electrolyte, wherein the positive electrode active material comprises a first lithium nickel-based oxide having at least one of a single particle type composed of one nodule and a pseudo-single particle type which is an aggregate of 30 or less nodules, in 50 wt% or more on the basis of the total weight of the positive electrode active material, and the negative electrode active material is composed of a Si/C composite and a carbon-based negative electrode active material.
Resumen de: EP4579869A1
An apparatus for detecting defects of a battery cell according to an embodiment of the present disclosure includes: a magnetic field measuring section that measures the magnetic field generated by the current flowing through the battery cell; a support section that supports the magnetic field measuring section; and a mounting section on which the battery cell is placed, wherein the magnetic field measuring section comprises a first measuring member that scans one side of the battery cell, a second measuring member that scans the other side of the battery cell opposite to the one side, and a third measuring member that is coupled between the first measuring member and the second measuring member, and wherein the first measuring member, the second measuring member, and the third measuring member are integrated.
Resumen de: EP4579890A1
A power storage device (1) includes a safety valve (30) in a case member (21) made of metal. The case member (21) has a valve periphery roughened portion (24) around the safety valve on a case inner surface (23). The power storage device (1) includes a blockage preventing resin protrusion (40) that is a protrusion made of resin and protruding to the inside (EH). The blockage preventing resin protrusion (40) is joined to the valve periphery roughened portion (24) and reduces the possibility of a piece of the electrode body (50) blocking the safety valve (30). Nanocolumns (26) stand numerously on the valve periphery roughened portion (24), and the blockage preventing resin protrusion (40) is joined to the valve periphery roughened portion (24) such that a resin material (45) fills gaps between the nanocolumns (26) standing numerously.
Resumen de: EP4579857A1
An electrolyte for a sodium secondary battery, a sodium secondary battery, a battery module, and an electrical device. The electrolyte for the sodium secondary battery comprises a sodium salt, an ether solvent, and a fluoroether solvent. The electrolyte contains ether solvent molecules and fluoroether solvent molecules that form a co-solvated structure with sodium ions, so that the chemical and electrochemical stability of the ether solvent is improved, and the cycle performance, storage performance and safety of the fluoroether solvent are improved.
Resumen de: EP4579261A1
An apparatus for diagnosing a battery according to an embodiment of the present disclosure includes a storage unit configured to store a plurality of battery profiles that correspond to a plurality of cycles and represent the corresponding relationship between voltage and capacity of a battery; and a control unit configured to generate a plurality of correction profiles representing the corresponding relationship between voltage and capacity change amount based on the plurality of battery profiles, calculate a normalization value for the generated plurality of correction profiles, and diagnose a state of the battery based on the calculated plurality of normalization values and a preset reference value.
Resumen de: EP4579849A1
This application provides an electrolyte, an electrochemical device and an electronic device. The electrolyte includes a compound of Formula I and an additive B, and the additive B includes at least one of LiPF<sub>2</sub>O<sub>2</sub>, lithium bis(oxalato)borate, lithium difluoro(oxalato) borate, lithium bis(fluorosulfonyl)imide or lithium bis(trifluoromethanesulfonyl)imide.The electrolyte of this application can improve the high-temperature cycle performance, storage performance and safety performance of the electrochemical device.
Resumen de: EP4579848A1
An electrochemical device includes a negative electrode plate and an electrolyte, where the negative electrode plate includes a negative electrode active material layer, and the negative electrode active material layer includes a silicon-based material; and the electrolyte includes a compound of formula (I), where in formula (I), X is selected from an oxygen atom or N-R<sub>8</sub>.
Resumen de: EP4579832A1
Disclosed herein are a battery module including a busbar assembly including a busbar, a support film supporting the busbar, and a support plate supporting the support film, and a method for manufacturing the same. Specifically, the battery module includes: a plurality of battery cells arranged in a first direction and each including a cell case and a cell terminal protruding from the cell case; and a busbar assembly including a busbar allowing electrical connection between respective cell terminals of at least one pair of battery cells among the plurality of battery cells, a support film coupled to the busbar to support the busbar, and a support plate coupled to the support film to support the support film.
Resumen de: EP4578921A1
A curable adhesive tape comprising a tapelike backing provided on at least one side with an adhesive layer which consists of a curable adhesive, wherein the backing is colored blue provides for a highly suitable application of radiation energy and corresponding heat input into the curable adhesive, which results in very good adhesive and joining properties, very high bonding strength of the curable adhesive and an optimal wetting of a substrate by the adhesive. Such a curable adhesive tape is particularly suitable for electrical insulation, especially for encasing a battery cell. Preferably the blue color fulfils the following definition: L*a*b* color space: L* = 0 to 93, a* = -33 to 24 and b* = -60 to 0.
Resumen de: EP4579980A1
This application provides an energy storage system and a heating control method for a battery pack. The energy storage system includes one or more battery packs and a controller. The battery pack includes an electrochemical cell, a heating film, a first switching transistor, and a first drive circuit. The heating film is configured to heat the electrochemical cell. The heating film and the first switching transistor are connected in series, and then connected in parallel between a positive direct current bus and a negative direct current bus. The first drive circuit is configured to output a pulse signal, to drive the first switching transistor to be turned on and turned off. The controller is configured to: if a voltage between the positive direct current bus and the negative direct current bus is greater than a voltage threshold, reduce a duty cycle of the pulse signal, to reduce operating power of the heating film; or if a voltage between the positive direct current bus and the negative direct current bus is less than or equal to a voltage threshold, increase a duty cycle of the pulse signal, to increase operating power of the heating film. According to the solution of this application, excessively high operating power of the heating film can be avoided, so that a risk of damage to the heating film can be reduced.
Resumen de: EP4579789A1
A negative electrode for a rechargeable lithium battery and a rechargeable lithium battery including the same are disclosed. The negative electrode for a rechargeable lithium battery includes a negative electrode active material layer including: an agglomerated product where at least one, e.g., two or more porous conductive material particle have pores are agglomerated, wherein pores of the adjacent porous conductive material particles in the agglomerated product are interconnected with each other.
Resumen de: EP4579931A1
The present application provides a positive electrode plate, a negative electrode plate, a battery cell, a battery, and an electric apparatus. An electrode plate includes a current collector and an active material layer, where the current collector includes a body portion and a tab. A ratio of the product of a cross-sectional area of a root of each tab and the current collector to a length between central axes of two adjacent tabs to the product of a width of the active material layer and a mass per unit area of the active material layer satisfies that a design factor of a positive tab is at least 0.1 and a design factor of a negative tab is at least 0.02. In the present application, size specifications of each tab and the design of a distance between adjacent tabs are adjusted according to the design parameter of each tab, ensuring that the battery cell has a current carrying capability matching with the volumetric energy density on the premise of increasing the volumetric energy density of the battery cell, thereby ensuring that a local temperature rise of the corresponding battery cell in a fixed charging process does not exceed a threshold.
Resumen de: EP4579900A2
A cylindrical secondary battery (1) including an electrode assembly (200), a can (100) accommodating the electrode assembly (200), a cap assembly (400) electrically coupled to the electrode assembly (200) and coupled to one side of the can (100) to close an inlet of the can (100), and including a cap-up (410) exposed to the outside, and a gasket (500) between the cap assembly (400) and the can (100). The cap-up (410) may include a terminal portion (411) with a circular shape, a base portion (412) spaced apart from the terminal portion (411) and surrounding an outer side of the terminal portion (411), and bridge parts (420, 421, 422) configured to connect the terminal portion (411) to the base portion (412) and spaced apart from each other with a connection hole (430, 431, 432) therebetween. A width of a part of each of the bridge parts (420, 421, 422) connected to the terminal portion (411) may be less than a width of a part of each of the bridge parts (420, 421, 422) connected to the base portion (412).
Resumen de: EP4579823A1
The present application relates to the field of batteries, and provides a battery cell, a battery and an electric device. The battery cell comprises an electrode assembly, a casing and an insulator. The casing is used for accommodating the electrode assembly, and has a wall portion arranged opposite the electrode assembly in a first direction, the wall portion being provided with a first pressure-relief area. In the first direction, the insulator is at least partially arranged between the electrode assembly and the wall portion to insulate the electrode assembly from the wall portion. The insulator is provided with a second pressure-relief area corresponding to the first pressure-relief area, and the first pressure-relief area and the second pressure-relief area are configured to be open when the battery cell releases pressure. When the battery cell is in normal use, the second pressure-relief area separates the electrode assembly from the first pressure-relief area, and an electrolyte in the casing is less prone to scouring the first pressure-relief area and thereby influencing the explosion-initiating pressure of the first pressure-relief area. When the battery cell releases pressure, the second pressure-relief area is open to allow gas to pass through the insulator to release pressure via the first pressure-relief area, which has relatively high safety.
Resumen de: EP4579928A1
This application discloses an electrochemical apparatus and an electric device. The electrochemical apparatus includes an electrode plate. The electrode plate includes a current collector, an active material layer arranged on a surface of the current collector, and a plurality of electrode tab connection portions, where each electrode tab connection portion includes a first part and a second part, and in an unfolded state of the electrode plate, the first parts of the plurality of electrode tab connection portions extend from an edge of the current collector along a width direction of the electrode plate and are spaced apart from each other, and the second parts are arranged on surfaces of the first parts and are electrically connected to the first parts.
Resumen de: EP4579820A1
Some embodiments of this application provide an electrochemical apparatus and an electrical device. The electrochemical apparatus includes an electrode plate. The electrode plate includes a current collector and an active material layer disposed on the surface of the current collector, and in an unwinding state of the electrode plate, a plurality of non-coated regions extend along width direction of the electrode plate on edges of the current collector, an electrode tab connecting sheet is provided with on the surface of each non-coated region, and the electrode tab connecting sheet is electrically connected to the non-coated region; where thickness L1 of the electrode tab connecting sheet satisfies: 3 µm ≤ L1 ≤ 35 µm, and/or fracture strength S1 of the electrode tab connecting sheet satisfies: 200 MPa ≤ S1 ≤ 880 MPa.
Resumen de: EP4579927A1
Embodiments of this application provide an electrochemical apparatus and an electric device. The electrochemical apparatus includes: an electrode plate, where the electrode plate includes a current collector, an active material layer, and a tab connection sheet, and when the electrode plate is in an unfolded state, the current collector includes a first part and a second part in a width direction of the electrode plate, the active material layer is disposed on a surface of the first part, the tab connection sheet overlaps with a surface of the second part to form an overlap region, and the tab connection sheet is welded to the surface of the second part to form an electrical connection to the second part, where in a length direction of the electrode plate, an area ratio of a weld mark to a welding region is greater than or equal to 20%, and a length ratio of the welding region to the overlap region is greater than or equal to 60%.
Resumen de: CN119768992A
The present invention is an energy storage device that is wirelessly charged. The device is characterized in that the housing (1) is made of a dielectric material having a dielectric constant in the range of 2 to 5 and a wall thickness in the range of 0.5 mm to 15 mm. At least one layered strip antenna (3) made of a conductive material is applied to the outer surface of the housing (1), in which successive antenna layers are separated by layers of dielectric material. Inside the housing (1), a housing guide (4) is formed, in which a PCB (5) having a system (6) for converting RF energy into DC is inserted. Terminals (7) connect the at least one energy storage module (2) to terminals (7) of a system for converting RF energy into DC, said terminals (7) and contacts (8) being embedded on a PCB (5) connected to the at least one antenna (3).
Resumen de: CN119816954A
A particulate composition comprising sulfur, graphene nanoplatelets and optionally a binder, and the use of the composition for preparing a battery cathode.
Resumen de: EP4579932A1
The present invention provides: a structure of a pouch type battery cell provided with electrode leads protruding from lengthwise ends thereof, respectively, wherein the pouch type battery cell includes a margin capable of extending the electrode leads by being deformed as end portions of the electrode leads are tensioned; and a structure of a battery module with a battery cell laminate accommodated therein formed by stacking at least one of above-described battery cells.
Resumen de: EP4579844A1
An electrolyte composition contains an ion conductive inorganic solid electrolyte, a polymer having an ability to preferentially conduct metal ions, and an organic solvent, in which the electrolyte composition satisfies at least one of the following conditions: (1) a content of the ion conductive inorganic solid electrolyte is 50 mass% or more with respect to a total amount of the electrolyte composition; and (2) a content of the ion conductive inorganic solid electrolyte is 15 vol% or more with respect to the total amount of the electrolyte composition.
Resumen de: EP4579936A1
A battery module and a voltage acquisition method are disclosed. The battery module includes: a plurality of cells; two groups of connecting plates arranged in parallel, with all the connecting plates of each group distributed in an arrangement direction of the cells; a first acquisition cable including a plurality of first conductors arranged in parallel, and a second acquisition cable stacked with the first acquisition cable and including a plurality of second conductors. In a direction from a head end to a tail end of a first group of connecting plates, and then from a tail end to a head end of a second group of connecting plates, at least some of the first conductors are connected to some of the connecting plates in an arrangement order, at least some of the second conductors are connected to other connecting plates in an arrangement order, and at least one second conductor is arranged between at least one group of adjacent first conductors. The battery module allows to reduce the maximum voltage difference between corresponding conductors of the first acquisition cable and the second acquisition cable, reducing the risk of electric leakage.
Resumen de: EP4579986A1
This disclosure provides a battery pack processing device and an electronic device, which belong to the field of battery technology. In this device, the first chip of the charge-discharge management circuit is electrically connected to the charge-discharge interface; the 11th pin of the first chip is electrically connected to the 24th pin of the second chip of the logic control circuit; the 12th pin of the first chip is electrically connected to the 23rd pin of the second chip; the positive pole of the battery pack is electrically connected to the 1st pin of the fifth chip, and the negative pole of the battery pack is electrically connected to the 11th pin, CO pin, and 9th pin of the fifth chip through the lithium battery protection circuit; the first signal output end of the battery pack communication circuit is electrically connected to the 13th pin of the second chip; the second signal output end of the battery pack communication circuit is electrically connected to the 14th pin of the second chip; the battery pack communication circuit sends control signals to the second chip; the second chip is used to determine the parallel or series connection of the battery pack based on the control signals. This can achieve parallel or series connection of the battery pack, improving the working efficiency of the battery pack.
Resumen de: EP4579907A1
This disclosure reveals an outdoor portable power supply and electronic component, belonging to the field of electronic component technology. The outdoor portable power supply includes a base assembly, a guide rail component, a telescopic component, and a first battery. The guide rail component is arranged on the base assembly; the telescopic component is arranged on the base assembly, and a part of the telescopic component is located inside the guide rail component; the first battery is arranged on the guide rail component, and sleeved on the telescopic component, the first battery having a first electrical connection part at one end away from the guide rail component. The outdoor portable power supply provided by this disclosure allows users to flexibly install and remove batteries according to usage and transportation needs, effectively enhancing the convenience of use and portability.
Resumen de: EP4579906A1
This disclosure reveals a battery installation structure, an outdoor portable power source, and an electronic component, which belong to the technical field of electronic components. The battery installation structure includes a telescopic component, a first battery module, and at least one second battery module. The first battery module is sleeved on the telescopic component; one second battery module is sleeved on the telescopic component and is electrically connected to the first battery module, and the remaining second battery modules are successively sleeved on the telescopic component along the axial direction of the telescopic component and are electrically connected in sequence. The battery installation structure provided by this disclosure allows users to freely increase or decrease the number of second battery modules according to actual power needs, thereby freely increasing or decreasing the battery capacity, enhancing the convenience of use and the portability of carrying.
Resumen de: CN119856324A
The present disclosure provides a silicone-based fire protection sheet, a method of producing the same, and a battery pack having the same. The present invention relates to a silicone-based fire-proof sheet having a structure in which at least one thermally insulating filler selected from aerogel particles, hollow particles and mesoporous particles is bonded in a silicone-based polymer binder, in which when the total mass of the solid content of the silicone-based fire-proof sheet is 100 mass%, the total mass of the solid content of the silicone-based fire-proof sheet is 100 mass%, the total mass of the solid content of the silicone-based fire-proof sheet is 100 mass%, and the total mass of the solid content of the silicone-based fire-proof sheet is 100 mass%. The amount of the thermal insulation filler ranges from 5% by mass to 40% by mass, and the amount of the silicone-based polymer binder ranges from 57.5% by mass to 95% by mass.
Resumen de: EP4579873A1
A method for recovering active metals of a lithium secondary battery may supply a cathode active material mixture to a fluidized bed reactor including a reactor body. A reaction gas may be introduced from a lower portion of the fluidized bed reactor to form a fluidized bed including a preliminary precursor mixture within the reactor body. The fluidized bed portion that has entered the upper portion of the fluidized bed reactor may be cooled to descend it into the reactor body, and then a lithium precursor may be recovered from the preliminary precursor mixture. Accordingly, a terminal velocity of the preliminary precursor is reduced, such that even if the particle size of the preliminary precursor is fine, loss due to scattering may be prevented.
Resumen de: GB2636759A
A process for preparing composite particles by chemical vapour infiltration comprises providing a charge of porous particles in a reactor, contacting the porous particles with a gaseous precursor of an electroactive material under conditions of temperature and pressure effective to cause deposition of the electroactive material into the pores of the porous particles to form the composite particles, wherein contacting comprises at least one discontinuous deposition phase during which the porous particles are contacted with a charge of the gaseous precursor and the reactor is then sealed during deposition of the electroactive material, and a continuous deposition phase during which the gaseous precursor is supplied to the reactor continuously. The electroactive material is preferably silicon. The particles may be porous carbon particles. The composite particles are suitable for use as anode active materials in rechargeable lithium-ion batteries.
Resumen de: EP4579817A1
A positive electrode sheet (10), a secondary battery (100), and an electric device (1000). The positive electrode sheet (10) comprises a positive electrode current collector (11), and a first positive electrode coating (12) and a second positive electrode coating (13) sequentially stacked on the positive electrode current collector (11). The first positive electrode coating (12) comprises a first positive electrode active material and an inorganic filler. The number of particle accumulation layers in the first positive electrode coating (12) is defined to satisfy the following relation: n = T × (M + 1)/(M × D<sup>1</sup><sub>v</sub>50 + D<sup>2</sup><sub>v</sub>50), and n is in a range of from 4 to 7, wherein T is the thickness of the first positive electrode coating (12), the unit is µm, M is the mass ratio of the first positive electrode active material to the inorganic filler contained in the first positive electrode coating (12), D<sup>1</sup><sub>v</sub>50 is the median particle size of the first positive electrode active material, D<sup>2</sup><sub>v</sub>50 is the median particle size of the inorganic filler, D<sup>1</sup><sub>v</sub>50 is 0.6 µm to 1.2 µm, and D<sup>2</sup><sub>v</sub>50 is 0.6 µm to 1.5 µm.
Resumen de: EP4578922A1
In an adhesive bonding stack between a first substrate (2) and a second substrate (3), formed by a first adhesive layer (4), which is double-sidedly adhering and non-detachable, the first side of the first adhesive layer (4) being attached to the first substrate, wherein the adhesive bonding stack further comprises a self-adhesive product, which comprises a dimensionally stable layer (5) provided on the second side of the first adhesive layer (4), a pressure-sensitive adhesive layer (6) provided on a second side of the dimensionally stable layer (5), which is opposite to the first adhesive layer (4), the second side of the pressure-sensitive adhesive layer (6) being attached to the second substrate (3), the detachable adhesive layer (6) being an adhesive moiety detachable by stretching, rendering the adhesive bonding stack detachable, a previously non-detachable bond becomes internally divisible and thus detachable.
Resumen de: EP4579829A1
La cellule (10) comprend un empilement d'éléments électrochimiques (12), comprenant une cathode, une anode, et un séparateur imprégné d'électrolyte intercalé entre l'anode et la cathode, et comportant un boitier de maintien (16) présentant deux faces principales (20) entre lesquelles est comprimé l'empilement d'éléments électrochimiques (12). Chaque face principale (20) présente au moins une plage d'appui (22) faisant saillie vers l'intérieur au voisinage d'au moins un bord de la face principale (20), ladite plage d'appui (22) étant en appui sur l'empilement d'éléments électrochimiques (12).
Resumen de: EP4579883A1
The battery module (10) comprises a plurality of cells (12) aligned in an alignment direction (X), the plurality of cells comprising two end cells (12A) and intermediate cells aligned between the end cells (12A) in the alignment direction (X), each cell (12) being separated from adjacent cells by respective insulating walls (28), the battery module (10) also comprising two lateral walls (14a, 14b). Each end cell (12A) is separated from at least one of the two lateral walls (14a, 14b) by a high conductive layer (34), the cells (12) being separated from the same lateral wall by an insulating layer (32) or a high conductive layer (34), by alternating from a conductive layer (34) and an insulating layer (32) from any cell (12) to adjacent cells (12).
Resumen de: EP4579877A1
This application provides a battery pack and an electrical device. The battery pack includes a housing assembly, a first connecting piece, and a cell assembly. The housing assembly includes a first space. The housing assembly is provided with a first opening and a second opening both communicating with the first space. The first connecting piece is accommodated in the first space. The first connecting piece is provided with a first channel. The first opening communicates to the second opening through the first channel. At least a part of the cell assembly is disposed in the first space. Along a first direction, a projection of the first opening and a projection of the cell assembly are spaced apart from each other, a projection of the second opening the projection of the cell assembly are spaced apart from each other. The first direction is a stacking direction of battery cells in the cell assembly. The heat of the cell assembly in the battery pack flows in the first channel through external air and is dissipated to an external environment, thereby improving the heat dissipation efficiency of the cell assembly.
Resumen de: EP4579866A1
Disclosed herein is a battery comprising: an electrical power supply portion configured to supply electrical power to a device connected to the battery; and a control portion configured to control a power output of the electrical power supply portion. The control portion is configured to control the power output of the electrical power supply portion based on a determined environmental condition of the battery.
Resumen de: EP4579876A1
The battery module (10) comprises a plurality of units (U1, U2) aligned in an alignment direction (X). Each unit (U1, U2) is separated of adjacent units by respective thermal walls (11). The plurality of units (U1, U2) comprises two end units (U1), each arranged at a respective end of the battery module (10) in the alignment direction (X), and intermediate units (U2) aligned between the end units (U1). Each end unit (U1) comprises only one first cell (12), and each intermediate unit comprises at least one cell (12, 14), the capacity of the first cell (12) of each end unit (U1) being smaller than the total capacity of the at least one cell of at least one of the intermediate units (U2).
Resumen de: EP4579904A1
An electrochemical apparatus and an electronic apparatus are provided. The electrochemical apparatus includes a housing, an electrode assembly, and a first conductive plate. The housing includes a main body portion and a sealing structure. The main body portion includes a first end wall and a second end wall opposite each other in a first direction, a first wall and a second wall opposite each other in a second direction, and a first side wall and a second side wall opposite each other in a third direction. The sealing structure includes a first sealing portion connected to the first end wall and a second sealing portion connected to the first side wall. The first sealing portion is folded in a direction towards a junction between the first wall and the first end wall, and/or the second sealing portion is folded in a direction towards a junction between the first wall and the first side wall. The first conductive plate includes a first surface facing the first wall and a second surface facing the second wall. An insulation adhesive connects the first conductive plate and the first sealing portion and includes a first layer connected to the first surface and a second layer connected to the second surface. A second region of the second layer overlaps with the first layer, and a first region extends beyond the first layer from the second region towards the electrode assembly.
Resumen de: EP4579874A1
Some embodiments of this application provide a battery pack. The battery pack includes a first casing, a battery module, and a second casing. The first casing has a first opening. The battery module is accommodated in the first casing. The second casing is connected to the first casing, the second casing includes a first sub-casing and a second sub-casing, the first sub-casing is connected to the first casing and covers at least a part of the first opening, and the second sub-casing is connected to the first casing. The first sub-casing and/or the second sub-casing is configured to be openable.
Resumen de: TW202417273A
Systems, methods, and devices of the various embodiments may provide control and/or sensing circuit configurations for electrochemical energy storage systems, such as metal-air battery systems. Various embodiments may include systems, methods, and devices supporting terminal switching between a charge cathode and a discharge cathode of a metal-air battery, bypass switching for the metal-air battery, and/or electrolyte low level detection for the metal-air battery.
Resumen de: TW202515019A
A method for obtaining a metal salt from a spent lithium-ion (Li-ion) battery may include contacting a leaching solvent to a portion of the spent lithium-ion battery to form a first dispersion. The first dispersion is heated to a temperature in a range from 50 DEG C to 90 DEG C by applying microwave radiation. The temperature of the first dispersion is maintained to be in the range from 50 DEG C to 90 DEG C for a period in a range from 10 seconds to 5 minutes by further applying microwave radiation to the heated first dispersion. The first dispersion is filtered to obtain a first filtrate. A first base is contacted with the first filtrate to increase a pH of the first filtrate to a first predetermined value to precipitate a first metal salt.
Resumen de: TW202425396A
According to one aspect, a power storage system may include an enclosure, and one or more modules disposed in the enclosure. Each of the one or more modules may include a plurality of electrochemical cells electrically coupled to one another, each one of the plurality of electrochemical cells including an oxygen evolution electrode (OEE), an anode, a gas diffusion electrode (GDE), an electrolyte, and a vessel and, within the vessel, the OEE, the anode, and the GDE at least partially immersed in the electrolyte.
Resumen de: CN119768365A
A method of preparing a cathode active material includes providing a first mixture including a mixed metal composition and phosphoric acid, or including a mixed metal composition and water. The mixed metal composition includes nickel, cobalt, manganese, or a combination thereof. A salt of iron, manganese, cobalt, or a combination thereof is added to adjust the stoichiometric ratio of the mixed metal composition. The stoichiometric adjusted mixed metal composition in water may be contacted with a phosphorus-containing compound. The stoichiometric adjusted mixed metal phosphate is further contacted with a lithium-containing compound to provide a cathode active material having at least one phase having an olivine structure.
Resumen de: EP4579867A1
The present invention relates to an electrode assembly and a secondary battery including the same. An electrode assembly according to an embodiment of the present invention may include: a positive electrode and a negative electrode; a separator disposed between the positive electrode and the negative electrode; and a plurality of conductive members disposed between at least one of the positive electrode or the negative electrode and the separator, wherein at least one electrode of the positive electrode and the negative electrode may include: a collector; a first active material layer disposed on an inner surface of the collector; a second active material layer disposed on an outer surface of the collector, wherein the conductive member includes: a first conductive member disposed to overlap an end of the first active material layer so as to form a first conductive path together with the collector; and a second conductive member disposed to overlap an end of the second active material layer so as to form a second conductive path between the collector and the second active material layer.
Resumen de: EP4579846A1
Disclosed are a lithium metal battery and a manufacturing method therefor, the lithium metal battery including a cathode, an anode, and an electrolyte disposed between the cathode and the anode, wherein the anode includes a lithium metal, the electrolyte includes a catholyte disposed adjacent to the cathode and an anolyte disposed between the catholyte and the anode, the catholyte includes a first polymer electrolyte, the first polymer electrolyte includes a first polymer, and the first polymer includes a first repeating unit derived from a first single-ion conducting monomer and a second repeating unit derived from a first crosslinking monomer having a plurality of reactive functional groups.
Resumen de: EP4579918A1
A battery module is disclosed in the present invention. The battery module of the present invention comprises: a housing which accommodates a plurality of battery cells therein, and has a vent-hole portion formed therein; a top cover which is movably installed on the housing so as to open/close the vent-hole portion; an elastic member which is installed to apply an elastic force to the top cover in a direction in which the top cover opens the vent-hole portion; and a stopper which supports the top cover so that the top cover maintains the closed state of the vent-hole portion, and loses the force of supporting the top cover due to changes in the temperature or pressure.
Resumen de: EP4578541A1
A fluidized bed reactor according to exemplary embodiments of the present invention may include: a reactor body; a dispersion plate which includes a base plate and first injection columns protruding from an upper surface of the base plate; and a second injection column which is configured to inject a gas so as to form a gas flow which rotates along an inner surface of the reactor body.
Resumen de: EP4579782A1
A cathode for a lithium secondary battery according to exemplary embodiments may include: a cathode current collector; and a cathode active material layer formed on the cathode current collector. The cathode active material layer may include: a first cathode active material layer formed on the cathode current collector, and including first lithium metal oxide particles having a form of secondary particles; a second cathode active material layer formed on the first cathode active material layer, and including second lithium metal oxide particles having a form of single particles; and a third cathode active material layer formed on the second cathode active material layer, and including third lithium metal oxide particles having a form of secondary particles.
Resumen de: CN119744311A
Disclosed herein are methods for extracting one or more metals from a material wherein the method comprises contacting the material with an acidic aqueous solution having a pH of less than 7 and reducing one or more metal oxides selected from the group consisting of nickel oxide, cobalt oxide and manganese oxide with an alkyl carbonate; wherein the material comprises the one or more metal oxides. Also disclosed are methods comprising extracting one or more metals from a material to obtain an aqueous solution comprising metal ions, and separating the metal ions to obtain at least one substantially pure metal ion solution and/or at least one substantially pure solid metal ion salt. Further disclosed are methods for recycling at least one battery material selected from the group consisting of lithium ion batteries, lithium ion battery waste, lithium ion battery production waste, lithium ion battery cell production waste, lithium ion cathode active materials, and combinations thereof.
Resumen de: CN119790512A
The invention relates to a sodium layered oxide of formula I: NaxM1a + i-y-z-n M2b + yM3c + zM4d + nO2 wherein: M1a +, M2b +, M3c + and M4d + are different transition metal ions or mixtures thereof, x is a number ranging from 0.5 to less than 1; y, z and n are numbers ranging from 0.01 to 0.85; y + z + n is less than 1; a, b, c and d are the corresponding oxidation numbers of the transition metal ions M1, M2, M3 and M4 respectively; the cumulative oxidation state a * (1-y-z-n) + (b * y) + (c * z) + (d * n) of the transition metal ions is equal to 4-x; and wherein the sodium layered oxide of formula I is not P2-Na < 2 >/3 > Ni < 1/4 > Mn < 1/2 > Ti < 1/6 > Zn < 1/12 > O < 2 >, P2-Na < 2 >/3 > Ni < 1/4 > Mn < 1/2 > Ti < 1/6 > Mg < 1/12 > O < 2 >, or P2-Na < 2 >/3 > Ni < 1/4 > Mn < 1/2 > Ti < 1/6 > Mg < 1/12 > O < 2 >.
Resumen de: CN119768371A
The invention relates to a process for preparing NiO particles, comprising the step a0) of contacting a Ni (CO) 4 gas stream at a temperature below 100 DEG C with an oxidizing gas stream to directly produce NiO particles in the product stream of the reactor.
Resumen de: EP4579793A1
A positive electrode mixture including a conductive aid which is a carbon material, a sulfur-based active material, and a solid electrolyte, wherein a mapping overlap rate of carbon and phosphorus is 50% or more in elemental analysis using energy dispersive X-ray spectroscopy of an electron microscope image, and the positive electrode mixture has a diffraction peak A at 2θ=20.2±0.5° and a diffraction peak B at 2θ=41.1±0.8° in powder X-ray diffraction using CuKα ray.
Resumen de: EP4579864A1
This nonaqueous electrolyte secondary battery is characterized by comprising an electrode body (14) which is obtained by winding a positive electrode (11) and a negative electrode (12) with a pair of separators (13) being interposed therebetween, and is also characterized in that: the negative electrode (12) has a non-facing part (12a) that does not face the positive electrode (11) with the pair of separators (13) being interposed therebetween; the non-facing part (12a) is wound with 1.5 turns or more from the inner end of the electrode body (14) in the winding direction; at least one of the pair of separators (13) comprises a base material layer and a functional layer that is formed on the base material layer; the functional layer comprises a heat-resistant layer that contains inorganic particles, and resin particles that are dispersed in the heat-resistant layer and have an average particle diameter that is larger than the thickness of the heat-resistant layer; the resin particles form projected parts that protrude from the surface of the heat-resistant layer; and the functional layer of at least one of the pair of separators (13) faces the positive electrode (11).
Resumen de: EP4578789A1
An abnormality sign diagnosis device (20) diagnoses an abnormality sign of a battery (106) provided to an eVTOL (100). The abnormality sign diagnosis device (20) includes an abnormality sign determination unit (23) and an output unit (24). The abnormality sign determination unit (23) determines the presence or absence of the abnormality sign of the battery (106) based on battery variation information which is variation information of the battery (106) and environmental variation information which is variation information of an environmental parameter. The output unit (24) outputs information related to the abnormality sign.
Resumen de: EP4579852A1
The present disclosure provides a lithium ion secondary battery, in which surface roughness (Ra) of a surface of a positive electrode active material layer containing a positive electrode active material is less than 1.0 × 10<sup>4</sup> Å, and the lithium ion secondary battery includes a nonaqueous electrolyte solution containing at least one selected from the group consisting of compounds of Formulas (1) to (10) described in the specification.
Resumen de: CN119790187A
An electrically conductive substrate coated with dense lithium is described, where the substrate consists of a sheet-like metal or sheet-like carbon-based material, where on at least one side of the substrate there is a lithium-philic intermediate layer of 1 to 5000 nm thick, the lithium-philic intermediate layer contains or consists of at least one metal or metalloid element selected from the group of Zn, Al, B, Cd, Au, Ag, Si, Pb, Sn, Ge, Ga, In, Mg, Cr, V, Mo, W, Zr, and Mn. A method of producing such a lithium coated substrate is also described.
Resumen de: EP4579891A1
An embodiment of the present invention relates to a method for manufacturing a secondary battery that includes an electrode assembly and a battery case provided to accommodate the electrode assembly and having a sealed edge, and the method may include a folding process of folding the edge, an attaching process of attaching an adhesive member to the folded edge, and a pressing process of pressing at least a partial area of a non-attachment area, to which the adhesive member is not attached, of the edge.
Resumen de: EP4579841A1
Provided are a gel polymer electrolyte separator, and a preparation method and use thereof, and relates to the technical field of lithium ion batteries. In the disclosure, the gel polymer electrolyte separator is prepared from raw materials including a masterbatch and an extractant, where the masterbatch includes the following components in mass percentage, based on a mass of the gel polymer electrolyte: 53% to 81% of an organic solvent, 10% to 21% of a polymer substrate, 6% to 19% of a pore-forming agent, and 1% to 8% of a nano-functional material; the polymer substrate is one or two selected from the group consisting of a polyvinylidene fluoride (PVDF) homopolymer and a PVDF-hexafluoropropylene (HFP) copolymer; and the nano-functional material is one or more selected from the group consisting of Al<sub>2</sub>O<sub>3</sub>, SiO<sub>2</sub>, TiO<sub>2</sub>, LLZO, LLZTO, LLTO, NASICON, LAGP, and LATP. The gel polymer electrolyte separator shows high mechanical strength and electrochemical properties.
Resumen de: EP4579839A1
Provided is a non-aqueous electrolyte secondary battery, wherein discharge cycle characteristics are improved while ensuring high battery capacity. The non-aqueous electrolyte secondary battery according to the present disclosure includes a positive electrode, a negative electrode, and a non-aqueous electrolyte. The positive electrode includes a lithium-containing complex oxide and a sulfonic acid compound present on the particle surface of the complex oxide. The sulfonic acid compound is a compound represented by formula (I). The negative electrode includes at least a silicon-containing material as a negative electrode active material. The proportion of silicon-containing material in the negative electrode active material is 3% by mass or more. The discharge capacity of the negative electrode active material is 380 mAh/g or more. (In the formula, A is a Group 1 element or a Group 2 element; R is a hydrocarbon group; and n is 1 or 2.)
Resumen de: EP4579838A1
Provided is a lithium ion secondary battery having high capacity and excellent high-temperature storage characteristics. A non-aqueous electrolyte secondary battery according to one embodiment is characterized by comprising a positive electrode, a negative electrode, a separator that separates the positive electrode and the negative electrode from each other, and a non-aqueous electrolyte, wherein: the positive electrode contains a lithium-containing composite oxide and a sulfonic acid compound present on a particle surface of the lithium-containing composite oxide; the sulfonic acid compound is represented by formula (I); the separator has a base material layer and a heat-resistant layer formed on the surface of the base material layer; the heat-resistant layer faces at least the positive electrode; and the thickness T1 of the base material layer and the thickness T2 of the heat-resistant layer satisfy the relationship T2/T1≥0.2. (In the formula, A is a group 1 element or a group 2 element, R is a hydrocarbon group, and n is 1 or 2.)
Resumen de: EP4579863A1
One embodiment of the present invention provides a nonaqueous electrolyte secondary battery (10) which comprises a positive electrode (11) that contains a lithium-containing transition metal composite oxide and a sulfonic acid compound that is present on the surfaces of particles of the composite oxide. The sulfonic acid compound is represented by formula (I). With respect to this nonaqueous electrolyte secondary battery, a negative electrode (12) comprises a negative electrode core body and a negative electrode mixture layer that is formed on the surface of the negative electrode core body; and the 1% proof stress of the negative electrode core body is 300 MPa or less.(In the formula, A represents a group 1 element or a group 2 element; R represents a hydrocarbon group; and n is 1 or 2.)
Resumen de: EP4579837A1
One embodiment of the present invention provides a nonaqueous electrolyte secondary battery (10) which comprises a positive electrode (11) that contains a lithium-containing transition metal composite oxide and a sulfonic acid compound that is present on the surfaces of particles of the composite oxide. The sulfonic acid compound is represented by formula (I). With respect to this nonaqueous electrolyte secondary battery, a negative electrode (12) comprises a negative electrode core body and a negative electrode mixture layer that is formed on the surface of the negative electrode core body; and the 1% proof stress of the negative electrode core body is 300 MPa or more.(In the formula, A represents a group 1 element or a group 2 element; R represents a hydrocarbon group; and n is 1 or 2.)
Resumen de: WO2024042275A1
The invention relates to a hydraulic thermal management module (10) for a cooling circuit (5) of an electric vehicle (3), the module comprising two hydraulic pumps (20, 21) and ten interfaces (A, B1, B2, D, E, F, G, H, I, K) forming fluid communication channels, wherein at least five of the interfaces can be opened and closed so as to enable the hydraulic thermal management module (10) to adopt at least four control configurations (P1). The invention also relates to a cooling circuit (5) comprising a hydraulic thermal management module (10). The invention further relates to a method for using the cooling circuit (5). Lastly, the invention relates to an electric vehicle (3) comprising such a hydraulic thermal management module (10) or such a cooling circuit (5).
Resumen de: CN119698713A
A system and method for flushing electrolyte from an electrolyte flushable battery device during a thermal runaway event. At least one condition of the electrolyte flushable battery device is monitored to detect a potential thermal runaway event as a function of the at least one condition exceeding a threshold. In response, an inlet valve and an outlet valve on the battery device are opened. The flushing liquid is flushed or pumped through the battery device, wherein the flushing liquid enters the device through the inlet valve and exits the device through the outlet valve. The irrigation liquid is then stored in the reservoir.
Resumen de: CN119790504A
The present invention relates to the use of a composition comprising a solvent system comprising a first component comprising one or more non-aqueous solvents and a second component comprising one or more performance additives as an electrolyte. Apparatuses and methods including the electrolyte compositions are also disclosed.
Resumen de: EP4579816A1
A graphite negative electrode material, a preparation method therefor and an application thereof. The surface of the graphite negative electrode material is provided with a macroporous structure and a mesoporous structure. In the macroporous structure, the ratio R of depth H of the macropores to size D of the macropores satisfies 0 < R < 60, where R = H/D. In the mesoporous structure, the ratio r of depth h of the mesopores to size d of the mesopores satisfies 0 < r < 250, where r = h/d. The preparation method comprises: dispersing a pore-forming agent solution on the surface of graphite by means of a mechanical force, and carrying out heat treatment in a protective atmosphere to obtain the graphite negative electrode material. The pore-forming agent is water-soluble. The surface of the graphite negative electrode material is provided with a macroporous structure and a mesoporous structure at the same time. The hierarchical porous structure equips the base plane and the edge plane of the graphite material with channels capable of allowing lithium ions to quickly enter between graphite layers, and shorten the solid-phase diffusion path of lithium ions. Therefore, the charging rate of the graphite negative electrode material is improved, rapid charging is realized, the preparation process is safe and environment friendly, and the cost is low.
Resumen de: EP4579887A1
A battery, a battery pack, and an electronic device where the battery includes a battery cell, a housing, and a protection plate; the battery cell is arranged in the housing; the housing includes a first side wall, a first groove is provided on the first side wall and at least part of the protection plate is arranged in the first groove; the first side wall is further provided with an electrode terminal, the electrode terminal includes a first electrode terminal and a second electrode terminal, and the first electrode terminal and the second electrode terminal are electrically connected to positive and negative electrodes of the battery cell, respectively. According to the battery, the battery pack, and the electronic device, the overall size of the battery is reduced, and the space is saved.
Resumen de: EP4579836A1
With respect to a nonaqueous electrolyte secondary battery (10) according to one embodiment of the present invention, a positive electrode (11) contains a lithium-containing transition metal composite oxide and a sulfonic acid compound that is present on the surfaces of particles of the composite oxide. The sulfonic acid compound is represented by formula (I). A negative electrode (12) contains, as negative electrode active materials, a carbon material and a silicon-containing material; and the content of the silicon-containing material is 3% by mass or less of the total mass of the negative electrode active materials.(In the formula, A represents a group 1 element or a group 2 element; R represents a hydrocarbon group; and n is 1 or 2.)
Resumen de: EP4579851A1
A nonaqueous electrolyte secondary battery includes a positive electrode, a negative electrode, and a nonaqueous electrolyte. The positive electrode includes a positive electrode active material. The positive electrode active material includes a lithium-containing composite oxide, and a sulfonic acid compound present on a surface of the lithium-containing composite oxide. The nonaqueous electrolyte contains a sulfur-containing compound.
Resumen de: EP4579938A1
A nonaqueous electrolyte secondary battery including a wound electrode group, a nonaqueous electrolyte, a battery case having a cylindrical shape and housing the electrode group and the nonaqueous electrolyte, a sealing body sealing an opening of the battery case, and an insulating plate disposed between the electrode group and a bottom of the battery case. The nonaqueous electrolyte contains a sulfur-containing compound. The insulating plate has an aperture, in which (A) the aperture rate of the insulating plate is 10% or more, or (B) the aperture has a plurality of mutually independent regions.
Resumen de: EP4579791A1
One embodiment of the present invention provides a nonaqueous electrolyte secondary battery (10) wherein a negative electrode (12) has a negative electrode mixture layer (41) which contains a silicon-containing material as a negative electrode active material, with the proportion of the silicon-containing material in the negative electrode active materials being 50% by mass or more. The negative electrode mixture layer (41) has a void fraction of 25% or more; and the value obtained by dividing the volume specific capacity by the void fraction is 40 mAh/cc·% or less.
Resumen de: EP4579835A1
One embodiment of the present invention provides a nonaqueous electrolyte secondary battery (10) wherein: a positive electrode (11) contains a lithium-containing transition metal composite oxide and a sulfonic acid compound that is present on the surfaces of particles of the composite oxide; and the sulfonic acid compound is represented by formula (I). With respect to a negative electrode (12) of this nonaqueous electrolyte secondary battery, the proportion of a silicon-containing material in a negative electrode active material is 50% by mass or more; and the value obtained by dividing the volume specific capacity of a negative electrode mixture layer (41) by the void fraction thereof is 48.0 mAh/cc·% or less. In the formula, A represents a group 1 element or a group 2 element; R represents a hydrocarbon group; and n is 1 or 2.
Resumen de: EP4579875A1
Embodiments of this application provide a fluid collector, a thermal management assembly, a battery, and an electric apparatus. The fluid collector is applied to the thermal management assembly of the battery and includes a housing and a separation portion. The housing has a fluid collecting chamber, where the fluid collecting chamber is configured to be connected to a plurality of heat exchange channels in the thermal management assembly. The separation portion is provided on the housing to partition the fluid collecting chamber into a plurality of concave cavities. The plurality of heat exchange channels are connected in series and communicate with each other through the plurality of concave cavities. This can alleviate non-uniform heating of a battery cell caused by provision of a single cavity in a fluid collector, enhancing the heat exchange effect of the battery cell and reducing the risk of thermal runaway in the battery.
Resumen de: EP4579815A1
A negative electrode material is provided, containing a carbon-based material, where an average surface roughness of the negative electrode material is Ra, and 1.2 nm ≤ Ra ≤ 30 nm. The negative electrode material of this application possesses a relatively high gravimetric capacity and excellent kinetic properties, so that a secondary battery containing the negative electrode material achieves both a high energy density and high fast-charge performance. A secondary battery containing the negative electrode material is also provided.
Resumen de: EP4579814A1
A negative electrode material is provided, including a carbon-based material. In a nitrogen adsorption/desorption test, the negative electrode material satisfies: S1/S2≥20%, and S2/S≥15%. S1 represents an adsorption volume of pores with a pore size less than or equal to 2 nm in the negative electrode material, and 0.0003 cm<3>/g≤S1≤0.001 cm<3>/g. S2 represents an adsorption volume of pores with a pore size greater than 2 nm and less than or equal to 10 nm in the negative electrode material, and 0.0008 cm<3>/g≤S1≤0.0025 cm<3>/g. S represents an adsorption volume of pores with a pore size less than or equal to 30 nm in the negative electrode material. The negative electrode material of this application has a high gram capacity and excellent kinetic performance, thus allowing a secondary battery including such negative electrode material to have both a high energy density and fast charging performance. A secondary battery including such negative electrode material is further provided.
Resumen de: EP4579770A1
A negative electrode material is provided. The negative electrode material comprises a carbon-based material. As tested in a nitrogen adsorption-desorption test, the negative electrode material satisfies: 0.004 cm<3>/g ≤ S ≤ 0.030 cm<3>/g, wherein S is an adsorption volume of pores with a pore diameter of 3 nm to 35 nm in the negative electrode material. In a charge-discharge test of a button battery prepared by using lithium as a negative electrode and using the negative electrode material as a positive electrode, a gravimetric capacity of the negative electrode material measured when the button battery is discharged to a voltage of -5 mV is denoted as Cap A, and the gravimetric capacity of the negative electrode material measured when the button battery is discharged to a voltage of 5 mV is denoted as Cap B, satisfying: 10 mAh/g ≤ Cap A - Cap B ≤ 20 mAh/g. The negative electrode material of this application possesses a high gravimetric capacity, and can effectively increase the energy density of a secondary battery containing the negative electrode material.
Resumen de: EP4579258A1
The disclosed method is a method for measuring the internal resistance of a battery. The measurement method includes a conduction step of charging or discharging the battery, a measurement step of measuring an open circuit voltage of the battery at the end time of the charging or discharging and thereafter, and a calculation step of individually calculating at least one resistance component included in the internal resistance, based on a voltage change of the open circuit voltage measured in the measurement step and a current value of current flowing through the battery for the charging or discharging at the end time. In the calculation step, the at least one resistance component is calculated based on a slope of a line obtained by plotting the voltage change in a graph in which a horizontal axis indicates a square root of an elapsed time from the end time and a vertical axis indicates the open circuit voltage.
Resumen de: EP4579834A1
In a non-aqueous electrolyte secondary battery (10) according to one embodiment of the present invention, a positive electrode (11) contains a lithium-containing transition metal composite oxide and a sulfonic acid compound which is present on the surfaces of particles of said composite oxide. The sulfonic acid compound is a compound represented by formula (I). A negative electrode (12) contains a silicon-containing material having a particle expansion rate of 210% or less. In the formula, A represents a group 1 element or a group 2 element, R represents a hydrocarbon group, and n represents 1 or 2.
Resumen de: EP4579688A1
A solid electrolyte 10 according to the present disclosure has a composition represented by the following formula (1): LiαMβXγIδ Formula (1). In the formula (1), M includes at least one selected from the group consisting of metalloid elements and metal elements other than Li, X includes at least one selected from the group consisting of F, Cl, and Br, 0 < α, 0 < β, 0 ≤ γ, and 0 < δ are satisfied. In an X-ray diffraction pattern of the solid electrolyte obtained by X-ray diffraction measurement using Cu-Kα radiation, a peak having a full width at half maximum of 0.10° or more and 0.55° or less is present within a diffraction angle 2θ range from 31° to 32°.
Resumen de: WO2025144066A1
The present invention relates to a system for conditioning a set of batteries (18) and a power inverter (19) for supplying power to a telecommunications system comprising a conditioning chamber (25) for the power inverter (19), a water tank (13) for the set of batteries (18), wherein the walls of the conditioning chamber (25) are made of a composite material, obtained after hardening a cementitious composition comprising a hydraulic binder, cellulose or keratin-based fibres and an adjuvant. The system also includes a water circulation pipe (21) and a pump (20), which moistens the walls of the conditioning chamber (25). The system is weather-resistant, fireproof and contributes to the evaporative cooling of the conditioning chamber (25).
Resumen de: CH721380A2
Dans un aspect, la présente invention concerne une pile (30) comprenant - un récipient inférieur cupuliforme (1) pour loger un ensemble électrode (4), le récipient inférieur (1) comprenant une base (2) et une paroi latérale verticale (3) le long d'une circonférence extérieure de la base (2), - un couvercle (10) comprenant o une partie intérieure électriquement conductrice (11), o une partie intermédiaire isolante (13) entourant la partie intérieure électriquement conductrice (11), et o une partie périphérique d'adaptation (12, 15) formant ou constituant une partie de bord périphérique extérieur (26) du couvercle (10) et fixable à la paroi latérale (3) du récipient inférieur (1) via la partie de bord périphérique extérieur (26), dans laquelle la partie périphérique d'adaptation (12, 15) est dimensionnée, façonnée et/ou configurée pour combler un espacement entre un bord extérieur (28) de la partie intermédiaire (13) et un périmètre intérieur de la paroi latérale (3)
Resumen de: CH721452A2
La présente invention concerne une anode au lithium métallique (1) pour une pile, comprenant un substrat actif d'anode (2) comprenant un collecteur de courant d'anode (7) et une couche (8) constituée sensiblement de lithium métallique prévue sur une surface (4) du collecteur de courant d'anode (7), et une première couche de protection d'anode au lithium métallique (3) prévue sur la couche (8) constituée sensiblement de lithium métallique, caractérisée en ce que la première couche de protection d'anode au lithium métallique (3) comprend de l'iodure de lithium Lil et du fluorure de lithium LiF. La présente invention concerne en outre un procédé de production d'une telle anode au lithium métallique.
Resumen de: CH721459A2
La présente invention concerne un électrolyte polymère pour un élément de batterie comprenant un copolymère polymaléimide comprenant i) des premières unités de répétition polymaléimide selon R 3 (Q) µ , dans lequel R 3 , individuellement, est C(H) h (C x H 2x+1 ) I ((CH 2 ) ψ ) J (CH 2 OC(O)(CH 2 ) σ ) k ou un polyéther, dans lequel i est entre 0 et 2 ; j et k, individuellement, sont entre 0 et 4 ; h vaut 4 - i - j - k ; la somme de h et i est entre 0 et 2 ; x est entre 1 et 6 ; ψ est entre 1 et 10 ; et σ est entre 1 et 20 ; µ, individuellement, vaut au moins 2 ; Q, individuellement, est selon la formule (I) : dans lequel R 2 , individuellement, est alkyle en C 1 à C 16 , alcényle en C 2 à C 16 , alcynyle en C 2 à C 16 ou aryle , R 4 , individuellement, est H, alkyle en C 1 à C 16 , alcényle en C 2 à C 16 , alcynyle en C 2 à C 16 ; Q est lié de manière covalente à R 3 via l'atome de soufre de Q ; ii) des deuxièmes unités de répétition polymaléimide selon la formule (II) dans lequel R 1 , individuellement, est H, alkyle en C 1 à C 16 , alcényle en C 2 à C 16 , alcynyle en C 2 à C 16 ; m, individuellement, vaut 1 à 5 ; M + est indépendamment un ion de métal alcalin ; X, individuellement, est H, F, alkyle en C 1 à C 16 , fluoroalkyle en C 1 à C 16 ; dans lequel les premières unités de répétition polymaléimide et les deuxièmes unités de répétition polymaléimide sont liées de manière covalente les unes aux autres.
Resumen de: CH721460A2
La présente invention concerne un électrolyte polymère pour une cellule de pile comprenant i) un premier polymère polymaléimide comprenant des premières unités de répétition de polymaléimide, dans lequel les premières unités de répétition de polymaléimide sont selon R 3 (Q) µ , dans lequel R 3 , individuellement, est un polyéther ou C(H) h (C x H 2x+1 ) I ((CH 2 ) ψ ) J (CH 2 OC(O)(CH 2 ) σ ) k , dans lequel i est entre 0 et 2 ; j et k, individuellement, sont entre 0 et 4 ; h est 4 - i - j - k ; h + i est entre 0 et 2 ; x est entre 1 et 6 ; ψ est entre 1 et 10 ; σ est entre 1 et 20 ; µ, individuellement, est au moins 2 ; et Q, individuellement, est selon la formule (I) : dans lequel R 2 , individuellement, est un alkyle en C 1 -C 16 , un alcényle en C 2 -C 16 , un alcynyle en C 2 -C 16 ou un aryle ; R 4 , individuellement, est H, un alkyle en C 1 -C 16 , un alcényle en C 2 -C 16 , un alcynyle en C 2 -C 16 ; Q est lié par covalence à R 3 via l'atome de soufre de Q ; ii) un deuxième polymère polymaléimide comprenant des deuxièmes unités de répétition de polymaléimide selon la formule (II) dans lequel R 1 , individuellement, est H, un alkyle en C 1 -C 16 , un alcényle en C 2 -C 16 , un alcynyle en C 2 -C 16 ; m, individuellement, est 1 à 5 ; M + , indépendamment, est un ion de métal alcalin ; X, individuellement, est H, F, un alkyle en C 1 -C 16 , un fluoroalkyle en C 1 -C 16 .
Resumen de: FR3157676A1
Système de traitement thermique d’un dispositif de stockage d’énergie électrique La présente invention concerne un système de traitement thermique (100) d’un dispositif de stockage d’énergie électrique comportant des organes de stockage (22) d’énergie électrique, le système de traitement thermique (100) comportant le dispositif de stockage d’énergie électrique, et un circuit de liquide diélectrique comportant :- au moins un canal de circulation (24) du liquide diélectrique entre au moins une partie des organes de stockage (22) d’énergie électrique du dispositif de stockage,- une pompe de circulation (3) de liquide diélectrique,- un échangeur de chaleur (5) configuré pour traiter thermiquement le liquide diélectrique,le système de traitement thermique (100) étant caractérisé en ce que le circuit de liquide diélectrique comporte un vase d’expansion (1) et en ce que le système de traitement thermique (100) comporte un réservoir à volume variable (14) raccordé au vase d’expansion (1). (Figure 1)
Resumen de: FR3157678A1
Titre : Dispositif de refroidissement pour un agencement électrique Dispositif de refroidissement pour un agencement électrique comprenant :- un échangeur thermique disposé à proximité d’un point d’échauffement de l’agencement électrique, un air circulant dans l’échangeur thermique entre un premier orifice d’entrée d’air et un deuxième orifice de sortie d’air, - un carter comprenant une face creuse, un axe de la face creuse s’étendant entre une première zone du carter destinée à contenir l’agencement électrique et une deuxième zone du carter destinée à contenir un équipement dont la température évolue dans une plage de températures inférieures à une température du point d’échauffement de l’agencement électrique, - un moyen de connexion entre le deuxième orifice de l’échangeur thermique et la face creuse du carter, la face creuse du carter contenant des aménagements permettant un déplacement, vers la deuxième zone du carter, d’un air sortant de l’échangeur thermique par le deuxième orifice. Figure pour l’abrégé : Figure 7
Resumen de: FR3157681A1
L’invention concerne un plancher (10) pour module de batterie comprenant plusieurs cellules (4), le plancher (10) comprenant une paroi (12) et des espaces de réception (14) qui sont répartis sur la paroi (12) et destinés à recevoir des cellules (4), caractérisé en ce que dans chaque espace de réception (14), la paroi (12) comporte une zone d’affaiblissement localisé (20) formant un opercule (15), configuré pour céder lorsque la pression (P) exercée sur la paroi (12) dépasse un seuil (S). L’invention concerne également un ensemble (1). L’invention concerne également un procédé de mise en œuvre du plancher (10). Figure 8
Resumen de: FR3157677A1
Module d’électrolyse ou de co-électrolyse (SOEC) ou pile à combustible (SOFC) à sous-ensemble préassemblés d’empilement de cellules électrochimiques et à enceinte thermique logeant les sous-ensemble et avec trappe(s) de gestion de la thermique. L’invention concerne un module (1) destiné à fonctionner à haute température avec une enceinte thermique dans laquelle des sous-modules (SM1, SM2), à empilement de cellules électrochimiques sont logés. Au moins une trappe d’évacuation (110) de la chaleur dégagée à l’intérieur de l’enceinte par les sous-modules en fonctionnement permet de gérer la thermique au niveau d’un module. Figure pour l’abrégé : Fig. 7B
Resumen de: FR3157375A1
La présente invention concerne un procédé de synthèse de particules thiophosphate Li3PS4 ou Na3PS4 à partir d’un réactif A2S et d’un réactif phosphore P2S5,avec A choisi parmi Li ou Na, comprenant au moins les étapes suivantes sous atmosphère inerte : A) Mise en contact du réactif A2S, préalablement mis en suspension dans au moins un premier solvant polaire (solvant 1), avec une suspension contenant au moins le réactif phosphore P2S5dans au moins un deuxième solvant polaire en température et formation en suspension sous reflux d’un composé intermédiaire sous forme d’un solvato-complexe A3PS4·solvant ; B) Centrifugation, redispersion dans un solvant, puis filtration et lavage dudit composé intermédiaire ; C) Séchage dudit composé intermédiaire ; D)Traitement thermique optionnel. Figure 3 à publier
Resumen de: FR3157374A1
La présente invention concerne un procédé de synthèse de particules d’argyrodite de lithium de formule Li7-(a+b)PS6-(a+b+c)OcXaQb avec X et Q deux éléments halogénés distincts choisis parmi F, Cl, Br, I ; O l’atome d’oxygène, avec 1≤a+b<2, c compris entre 0 et 0,25, bornes incluses, a et b n’étant pas simultanément nuls, à partir d’un réactif lithium Li2Sx avec x compris entre 1 et 8, un réactif phosphore Rp choisi parmi P2S5, P4S10, P4S9 et P4S9+n avec n compris entre 0 et 1, et un composé halogéné choisi parmi LiX et PSX3; et un éventuel réactif oxygéné phosphoré ou halogéné choisi parmi P2O5,LiClO4, LiBrO4, LiIO4,par formationd’un composé intermédiaire solvato-complexe Li3PS4·solvant, centrifugation, redispersion de la phase centrifugée dans un solvant anhydre, puis filtration et lavage dudit composé intermédiaire; séchage et Traitement thermique. Figure 4 à publier
Resumen de: FR3157403A1
L’invention concerne l’utilisation d’au moins un élément dans un circuit de refroidissement utilisant au moins un fluide diélectrique, dans laquelle : l’élément comprend au moins une couche constituée d’une composition C, caractérisée en ce que : - la composition C comprend de 50 à 99.9% en poids par rapport au poids total de la composition d’une matrice polyamide présentant un ratio C/N moyen supérieur ou égal à 7 et est exempte de fibres et de charges de renfort ; - le fluide diélectrique est liquide à pression atmosphérique à 23°C et comprend moins de 10% en poids d’eau et d’éther de glycol ; et - ladite couche étant destinée à être en contact avec ledit fluide diélectrique. Figure 1
Resumen de: FR3157674A1
Procédé (12) de fabrication d’une cellule pour batterie secondaire comprenant : - une première opération (O1) de déplacement d’une table d’empilage, ledit déplacement étant effectué selon une première direction de déplacement,- une deuxième opération (O2) de déroulement d’un film séparateur sur la table d’empilage, ledit film séparateur comprenant une première électrode préalablement positionnée sur celui-ci, - une troisième opération (O3) de déplacement de la table d’empilage selon une deuxième direction de déplacement opposée à la première direction de déplacement,- une quatrième opération (O4) de dépose d’une deuxième électrode sur le film séparateur, ladite deuxième électrode étant de polarité opposée à la première électrode,- une cinquième opération (O5) de déplacement de la table d’empilage, selon la première direction de déplacement. Figure pour l'abrégé : Figure 4
Resumen de: FR3157243A1
Le présent exposé concerne un pion (8) de soudage par friction-malaxage,le pion (8) présentant :- au moins un filet (81) ;- au moins une rainure (82) transversale au filet ; et - au moins un méplat (83) entamant le filet. Figure de l’abrégé : Fig. 3a
Resumen de: FR3157675A1
L’invention se rapporte à un procédé d’ouverture et de décharge d’une cellule électrochimique de batterie à insertion-désinsertion ionique, comprenant une enveloppe dans laquelle sont logés une électrode négative, une électrode positive, un séparateur et un électrolyte, qui comprend les opérations suivantes : ouverture de la cellule électrochimique au niveau d’une ou plusieurs zones de l’enveloppe, au moins la ou les zones d’ouverture étant mises en contact avec un liquide L1, puis décharge de la cellule électrochimique par mise en contact de la cellule avec un liquide L2, et qui est caractérisé en ce que :- le liquide L1 comprend un solvant à base d’un alcool et éventuellement un médiateur redox, tandis que le liquide L2 comprend un solvant à base d’un alcool conjointement avec un médiateur redox ; et- les liquides L1 et L2 sont exempts de chlore. Elle se rapporte également à un procédé de recyclage d’une batterie à insertion-désinsertion ionique mettant en œuvre ce procédé d’ouverture et de décharge. Applications : recyclage de batteries lithium-ion, sodium-ion, potassium-ion, calcium-ion ou magnésium-ion.
Resumen de: FR3157293A1
Module de déconnexion (1) pour batterie de véhicule électrique comprenant : un composant électrique haute puissance (12) comprenant une borne (12.1, 12.2) ; un connecteur électrique (c2, c3) en contact électrique avec la borne (12.1, 12.2) du composant électrique haute puissance (12) ; un circuit de refroidissement comprenant un fluide diélectrique ; ledit circuit de refroidissement comprenant un échangeur thermique (f, f2, f3), ledit échangeur thermique comprenant : un corps métallique (60) au contact du connecteur électrique ; un conduit (61) reliant un orifice d’entrée (62) du fluide diélectrique et un orifice de sortie (63) du fluide diélectrique ; FIGURE 8
Resumen de: FR3157265A1
L’invention concerne l’utilisation d’au moins un élément dans un circuit de refroidissement utilisant au moins un fluide diélectrique, dans laquelle l’élément comprend : - une première couche constituée d’une composition de polyamide C, caractérisée en ce que la composition C comprend de 50 à 99,9 % en poids par rapport au poids total de la composition d’une matrice polyamide; - au moins une deuxième couche constituée d’une composition choisie parmi une composition comprenant au moins un polyamide, une composition comprenant au moins une polyoléfine fonctionnelle ou une composition comprenant au moins un polymère barrière ; le fluide diélectrique est liquide à pression atmosphérique à 23°C et comprend moins de 10% en poids d’eau et d’éther de glycol ; et ladite 1ère couche étant destinée à être en contact avec ledit fluide diélectrique Figure 1
Resumen de: FR3157404A1
L’invention concerne l’utilisation d’au moins un élément dans un circuit de refroidissement utilisant au moins un fluide diélectrique, dans laquelle : ledit fluide diélectrique est liquide à pression atmosphérique à 23°C et comprend moins de 10% en poids d’eau et d’éther de glycol ; l’élément est constitué d’une composition de polyamide comprenant : o de 35 à 85 % en poids d’une matrice polyamide présentant un ratio C/N moyen supérieur ou égal à 7 ; o de 15 à 65 % en poids de fibres ou charges de renfort ledit élément étant en contact direct avec le fluide diélectrique. Figure 1.
Resumen de: FR3157673A1
La présente invention concerne un procédé de fabrication d’électrodes positives par voie sèche comprenant un électrolyte polymère gel pour batterie à électrolyte solide, les éléments électrochimiques les comprenant et leur fabrication. Figure : Aucune
Resumen de: FR3157376A1
Produit fondu polycristallin constitué de constituants élémentaires M, niobium Nb, oxygène O et optionnellement azote N, représentant ensemble plus de 90% de la masse du produit, et, optionnellement d’un constituant élémentaire complémentaire constituant le complément massique à 100%, le constituant élémentaire M étant choisi parmi le titane (Ti), le magnésium (Mg), le vanadium (V), le chrome (Cr), le tungstène (W), le zirconium (Zr), le molybdène (Mo), le cuivre (Cu), le fer (Fe), le gallium (Ga), le germanium (Ge), le calcium (Ca), le potassium (K), le nickel (Ni), le cobalt (Co), l’aluminium (Al), l’étain (Sn), le manganèse (Mn), le cérium (Ce), le tellure (Te), le sélénium (Se), le silicium (Si), l’antimoine (Sb), l’yttrium (Y), le lanthane (La), le hafnium (Hf), le tantale (Ta), le rhénium (Re), le zinc (Zn), l’indium (In), le cadmium (Cd), le strontium (Sr), le bore (B), le plomb (Pb), le phosphore (P), le bismuth (Bi), le sodium (Na) et leurs mélanges, et les proportions atomiques desdits éléments M, niobium Nb, oxygène O et optionnellement azote N étant définies par la formule MmNbO(1-y)Nyn, dans laquelle les indices atomiques sont tels que :0,019 ≤ m ≤ 7,692 et0 ≤ y ≤ 0,210 et0,060 ≤ n ≤ 953,850. Pas de figure d’abrégé
Resumen de: FR3157680A1
La présente invention concerne un dispositif d’équilibrage de pression pour un boîtier de batterie (1). Le dispositif d’équilibrage de pression comprend une base (3) et une valve de dégazage (11) configurée pour se déplacer d’une position fermée à une position ouverte afin de libérer une surpression à l’intérieur du boîtier de batterie pour un dégazage d’urgence. Le dispositif d’équilibrage de pression comporte également un dispositif d’équilibrage de pression (1) comprenant une membrane respirante poreuse (9) qui est perméable aux gaz et imperméable aux liquides pour l’équilibre de pression entre l’intérieur du dispositif (1) et l’extérieur du dispositif (1) lorsque la valve de dégazage (11) est en position fermée. La valve de dégazage (11) et la membrane respirante sont découplées. Figure pour l’abrégé : Figure 4
Resumen de: FR3157296A1
Procédé de contrôle de charge d’un dispositif de stockage d’énergie électrique (2) d’un véhicule automobile muni d’un système de motorisation électrique (4) alimenté par ledit dispositif de stockage (2), ledit procédé comprenant une étape (40) de contrôle dudit système de motorisation (4) dans un mode, dit de freinage récupératif, permettant une génération d’un courant électrique à partir d’un couple fourni par des roues du véhicule pour recharger ledit dispositif de stockage (2), ladite étape (40) de contrôle comprenant une étape (36) de dégradation du rendement énergétique dudit système de motorisation (4) tenant compte d’une température dudit dispositif de stockage (2), de sorte à limiter un courant de charge dudit dispositif de stockage (2) et d’augmenter des pertes thermiques dissipées par ledit système de motorisation (4), ledit véhicule étant configuré pour transférer lesdites pertes thermiques audit dispositif de stockage (2). Figure pour l’abrégé : Figure 1
Resumen de: WO2025135447A1
The present invention relates to a battery cell capable of preventing damage due to welding heat, a battery pack comprising same, a vehicle, and a manufacturing method therefor, the battery cell being characterized by comprising: a can having an open end portion on one side; an electrode assembly accommodated in the can; a current collector electrically connected to the electrode assembly; a cap covering the open end portion; and a welding part in which the can and the cap are bonded by welding, wherein the can comprises a beading portion press-fitted inward along the circumference of the vicinity of the open end portion at a side portion of the can, and a crimping portion bent inward along the circumference of the open end portion at the side portion of the can so as to surround and fix the edge of the cap.
Resumen de: WO2025135501A1
A container module is disclosed. The container module according to one embodiment of the present invention may comprise: a case providing an inner space and including a rear panel; a battery array, which is positioned inside the case and includes a plurality of battery packs stacked in the vertical direction; a cooling part for providing cooling air to the inside of the case; and a duct, which is positioned inside the case and allows the cooling part to communicate with the gap between the battery array and the rear panel.
Resumen de: WO2025135394A1
Provided, according to the present invention, is a method for recovering valuable metals, the method comprising the steps of: producing an alloy by reducing a waste lithium secondary battery powder comprising carbon and valuable metals; and producing nickel matte by inputting a thickener, a slag-forming agent, and oxygen (O2) into the alloy, wherein the waste lithium secondary battery powder comprises more than 0 wt% to 40 wt% or less of the carbon with respect to the total weight of the waste lithium secondary battery powder. According to the present invention, the recovery rate of valuable metals may be improved through a process of treating a large amount of waste resources through a dry process of collecting valuable metals in the form of a molten material dissolved in iron.
Resumen de: WO2025135505A1
The present invention relates to a battery module comprising: a cell assembly including a plurality of battery cells; a main body frame for accommodating the cell assembly in the inner space thereof; a bus bar frame electrically connected to the cell assembly; and an end plate coupled to one side or the other side of the main body frame, wherein the main body frame and the end plate are coupled to each other through male-female coupling.
Resumen de: WO2025135511A1
A battery module according to an embodiment of the present invention includes: a battery cell stack in which a plurality of battery cells each including an electrode lead or an electrode terminal are stacked; a bus bar frame assembly positioned on one side of the battery cell stack in a direction in which the electrode lead or the electrode terminal protrudes; a module frame having accommodated therein the battery cell stack and having one open surface in the direction in which the electrode lead or the electrode terminal protrudes in the battery cell stack; an end plate covering the open one surface of the module frame; and a resin block pad positioned between the battery cell stack and the upper end portion of the module frame. At least one resin injection hole for injecting resin is formed in the upper end portion of the module frame. On the upper end portion of the module frame, when viewed in a direction perpendicular to the upper end portion of the module frame, the resin injection hole is positioned in a region between the resin block pad and the end plate. The resin injected into the resin injection hole is in direct contact with the bus bar frame assembly.
Resumen de: WO2025136026A1
According to an embodiment of the present invention, provided is a lithium secondary battery comprising: a positive electrode in which a positive electrode mixture layer including a positive electrode active material and an inorganic solid electrolyte is formed on one surface or both surfaces of a positive electrode current collector; a negative electrode in which a negative electrode mixture layer including a Si-based active material as a negative electrode active material is formed on one surface or both surfaces of a negative electrode current collector; a separator interposed between the positive electrode and the negative electrode; and a lithium non-aqueous electrolyte including a lithium salt and a non-aqueous organic solvent, wherein the inorganic solid electrolyte is included in an amount of 1.5 wt% to 5 wt% based on the total weight of the positive electrode mixture layer, and is uniformly distributed in the positive electrode mixture layer.
Resumen de: WO2025136024A1
A cathode active material for a lithium secondary battery, according to one embodiment of the present invention, is composed of a core part, which includes manganese, nickel and cobalt, and a boron-containing coating layer positioned on the outer surface of the core part, and can comprise a lithium metal oxide represented by chemical formula 1. Chemical formula 1 Li1+xNiaCobMncBdMeO2-yDy In chemical formula 1, 0.1≤x≤0.15, 0.20≤a≤0.35, 0.05≤b≤0.15, 0.4≤c≤0.55, 0≤d≤0.1, 0.015≤y≤0.05, and x+a+b+c+d+e=1, M is at least one selected from Al, Ti, Nb, Ta, W, Zr, Y, Mg, Sc, Si, V, Fe, Mo, Ce, Hf, La, Sr, Sn, Sb, Zn, Cu, Ge, Mo, Ru and Ir, and D is at least one selected from F, Cl, Br and I.
Resumen de: WO2025135904A1
The present invention relates to a positive electrode including a positive electrode active material layer including a first positive electrode active material and a second positive electrode active material which have different average particle diameters, wherein the average particle diameter (D50) of the first positive electrode active material is greater than the average particle diameter (D50) of the second positive electrode active material, the first positive electrode active material and the second positive electrode active material include single-particle-type particles, the interfacial resistance of the positive electrode having an SOC of 50% measured in a coin half-cell manufactured using the positive electrode is 6.5Ω to 8.5Ω, and the interfacial resistance of the positive electrode having an SOC of 10% measured in a coin half-cell manufactured using the positive electrode is 15Ω to 19Ω.
Resumen de: WO2025135897A1
The present invention relates to a lithium secondary battery comprising: a battery case; an electrode assembly accommodated in the battery case; and an electrolyte, wherein the G value defined by formula (1) is 1.8 to 3.5. Formula (1): In Formula (1), VCH is the volume (unit: mL) of a hydrocarbon-based gas present in the lithium secondary battery, VCO is the volume (unit: mL) of a carbon oxide-based gas present in the lithium secondary battery, VTotal is the total volume (unit: mL) of gas present in the lithium secondary battery, and C is the discharge capacity when the lithium secondary battery is charged and discharged at 0.33 C in a voltage range of 2.5 V to 4.2 V.
Resumen de: AU2024219578A1
A thermal management pipeline system for a vehicle, a thermal management control method and apparatus for a vehicle, and a vehicle, which relate to the technical field of vehicle thermal management. A thermal management pipeline system (100) for a vehicle comprises: a first refrigerant circulation pipeline (101), which is used for cooling or heating, in a cab thermal management mode, a cab of a vehicle; a second refrigerant circulation pipeline (102), which is used for cooling or heating, in a battery thermal management mode, a battery of the vehicle by using cold energy or heat obtained from the first refrigerant circulation pipeline (101), and is also used for cooling, in a waste heat utilization thermal management mode, the battery of the vehicle by using a refrigerant flowing into the second refrigerant circulation pipeline (102) from a third refrigerant circulation pipeline (103); and the third refrigerant circulation pipeline (103), which is used for cooling, in an electric drive system thermal management mode, an electric drive system of the vehicle. By means of the design of a centralized pipeline system, the energy utilization rate of a vehicle can be improved; and compared with a distributed thermal management system, the pipeline design of the centralized pipeline system is more efficient and convenient.
Resumen de: AU2024227616A1
A battery pack for an electrical device including a housing having a first housing portion defining a first compartment and a second housing portion defining a second compartment, a plurality of battery cells disposed within the first compartment and configured to supply power to the electrical device, a circuit board disposed within the first compartment and including a heat generating component, and a heat sink coupled to the second housing portion and disposed adjacent the heat generating component. The heat sink includes a first portion extending toward the heat generating component and disposed within the first compartment, and a second portion extending away from the heat generating component and disposed within the second compartment. A battery pack for an electrical device including a housing having a first housing portion defining a first compartment and a second housing portion defining a second compartment, a plurality of battery cells disposed within the first compartment and configured to supply power to the electrical device, a circuit board disposed within the first compartment and including a heat generating component, and a heat sink coupled to the second housing portion and disposed adjacent the heat generating component. The heat sink includes a first portion extending toward the heat generating component and disposed within the first compartment, and a second portion extending away from the heat generating component and disposed within the second compartme
Resumen de: AU2023412326A1
The present invention relates to a battery pack and a battery device comprising same, and to a battery pack in which interference between a cable part and a housing part can be prevented, and a battery device comprising same. The battery pack according to one embodiment of the present invention comprises: a cable part; a connector part of which one end is connected to the cable part; a housing part in which the connector part is mounted; and a loading part for fixing the position of the cable part, wherein the cable part extends between the connector part and the inner surface of the housing part, and the loading part is formed inside the housing part, and can support one side of the cable part facing the inner surface of the housing part, so as to prevent interference between the inner surface of the housing part and the cable part.
Resumen de: WO2025135905A1
The present invention relates to a lithium secondary battery comprising a cathode, an anode, a separator interposed between the cathode and the anode, and an electrolyte, wherein: the cathode includes a first cathode active material and a second cathode active material having average particle diameters differing from each other; the average particle diameter (D50) of the first cathode active material is greater than the average particle diameter (D50) of the second cathode active material; the first cathode active material and the second cathode active material include single-particle-form particles; the anode comprises a silicon-based anode active material; and, for the lithium secondary battery, the interfacial resistance factor (IRF) value defined by formula 1 is 1 to 1.4. In formula 1, each variable is the same as that described in the present specification.
Resumen de: WO2025135990A1
An electronic device according to an embodiment of the present disclosure relates to a battery assembly and an electronic device including same. The electronic device may include: a housing; and a battery assembly disposed in the housing and including a battery cell and a cover member disposed to surround at least a portion of the battery cell. The battery cell including a curved region on both sides may include: a positive electrode including a positive electrode current collector and positive electrode active material coating portions disposed on both surfaces of the positive electrode current collector; a negative electrode including a negative electrode current collector and negative electrode active material coating portions disposed on both surfaces of the negative electrode current collector; and a separator disposed between the positive electrode and the negative electrode. Among the positive electrode active material coating portions, a positive electrode active material coating portion disposed adjacent to the battery cell may include a first pattern portion which is located in the curved region and is a combination of a plurality of unit patterns which are at least partially engraved and repeat.
Resumen de: WO2025135979A1
Disclosed are a sulfur-carbon composite manufacturing apparatus and a battery cell produced by using same, and a battery pack and vehicle, comprising same. A sulfur-carbon composite manufacturing apparatus according to an embodiment of the present invention manufactures a sulfur-carbon composite by using powder in which solid-state sulfur and carbon are mixed. The sulfur-carbon composite manufacturing apparatus comprises: a supply member that supplies powder; a transfer member that transfers the powder supplied from the supply member while rotating the powder; and an irradiation member that irradiates microwaves toward the powder transferred by the transfer member.
Resumen de: WO2025135911A1
The present invention provides a lithium secondary battery comprising: a cathode; an anode; a separator interposed between the cathode and the anode; and a non-aqueous electrolyte, wherein the cathode includes a cathode active material and a first additive, the non-aqueous electrolyte includes a lithium salt, an organic solvent, and a second additive, the first additive includes at least one selected from the group consisting of compounds represented by chemical formula 1-1 and chemical formula 1-2, and the second additive includes a cyclic sulfur oxide-based compound. Chemical Formula 1-1 and Chemical Formula 1-2 are as described in the specification.
Resumen de: WO2025135080A1
This adhesive agent is a phosphorus-containing molten salt solution that is used in order to join powder materials together, or to join a powder material and a thin film material. The adhesive agent satisfies the following: (1) containing an ion conductive species and a phosphorus-containing compound which is an ion conductor precursor; (2) containing a phosphorus-containing molten salt as an ion conductor precursor, the phosphorus-containing molten salt being a salt of an ion conductive species of phosphoric acid; or (3) containing a phosphorus-containing molten salt as an ion conductor precursor, and having an ion conductive species on the surface of the powder material.
Resumen de: WO2025135077A1
The present invention constitutes a system for predicting degradation of secondary battery, the system comprising a control unit that centrally controls the degradation prediction system and a storage unit in which information for degradation prediction is stored. The control unit includes calculation units that perform acquisition of an internal degradation parameter of the secondary battery, creation of a degradation prediction formula based on the internal degradation parameter, and storage of the created degradation prediction formula in the storage unit.
Resumen de: WO2025134971A1
This method for manufacturing a positive electrode mixture uses a device that is provided with: a rotor having a blade for applying an impact force to a mixture containing a sulfur-based active material, an electron conductive material, and a solid electrolyte; and a barrel storing the rotor, and that applies shear force to the mixture at a gap part between the blade or the rotor and the barrel.
Resumen de: WO2025134874A1
This power supply device comprises at least one battery block for accommodating a plurality of secondary battery cells, and an exterior case for accommodating the battery block. The battery block comprises: an intermediate holder that exposes, on each side thereof, an end region spanning a fixed distance from each cell end face of each secondary battery cell and holds a cell intermediate region that is between the end regions; and a pair of cover holders that are disposed on respective sides of the intermediate holder and cover the end regions of the secondary battery cells. A cooling air passage through which cooling air flows to the cell intermediate region of each secondary battery cell is formed in the interior of the intermediate holder. The exterior case has formed therein an external opening communicating with the cooling air passage, and comprises an end waterproofing structure which waterproofs the interface between the cell intermediate region and the end regions of each of the secondary battery cells.
Resumen de: WO2025134984A1
Provided is a separator for power storage devices, the separator comprising a separator base material constituted by a microporous film containing a polyolefin as a main component, the separator including a microporous layer (A) having: a trunk height of 500 nm-1000 nm inclusive, calculated by analysis of a scanning electron microscope (SEM) image of an MD-ND cross section of the separator base material; and an MD length of 1000 nm-1900 nm inclusive, calculated by analysis of the SEM image of the MD-ND cross section of the separator base material.
Resumen de: WO2025133673A2
Aspects in accordance with the present invention pertain to an active coating of an electrode active material, said active coating having a thickness of 1 nanometer - 1 micrometer and comprising a transition metal oxide, said active coating imparting, to the electrode active material upon which said active coating is deposited, a negative rate of μ over n, wherein: said μ represents a chemical potential; said n represents a number of electron per a unit area; and said negative rate is between 0 and -5.39 x 10-8 millielectronvolt per electron per cm2.
Resumen de: WO2025137601A1
Various systems and methods are provided for a battery management system. In one example, the battery management system includes a battery data receiving unit communicatively coupled to sensors of a battery pack. Further the battery data receiving unit includes instructions stored on non-transitory memory that when executed cause the battery data receiving unit to collect raw data from the sensors of the battery pack in a first format and transmit the collected raw data to an electronic control unit for downstream processing into a second format.
Resumen de: WO2025137619A1
An operating point for a vehicle electric motor (206) is selected to produce requested torque inefficiently, to generate additional heat to warm the battery (207). A torque command (301) for operation of the vehicle at a desired speed and a heat power command (307) for an amount of heat needed to warm a battery powering the vehicle electric motor are received by a motor controller (205). The motor controller determines an operating point of the vehicle electric motor that corresponds to both the requested torque and the amount of heat, and the vehicle electric motor is controlled by a current command (315) based on the determined operating point.
Resumen de: WO2025135849A1
The present invention relates to a lithium secondary battery comprising: an electrode assembly including a positive electrode, a negative electrode, and a separator interposed between the positive electrode and the negative electrode; an electrolyte; and a battery case in which the electrode assembly and the electrolyte are accommodated, wherein: the positive electrode includes, as a positive electrode active material, a lithium nickel-based oxide containing 80 mol% or more of nickel, among all metals except lithium; the lithium nickel-based oxide includes single particle-type particles, secondary particles, or a combination thereof; the negative electrode includes at least one selected from the group consisting of natural graphite and artificial graphite; and the TS index (unit: g/m2), as defined by equation 1, is 1.72 or smaller. In equation 1, the variables are as described in the specification.
Resumen de: WO2025135644A1
The present invention relates to a battery assembly. The battery assembly according to one embodiment of the present invention comprises: a battery cell; a circuit board coupled to the battery cell so as to be electrically connected to the battery cell; a chip thermistor which senses the temperature of the battery cell and which is electrically connected to the circuit board; and a first bus bar which extends between an anode of the battery cell and the circuit board so as to electrically connect the anode of the battery cell and the circuit board, and which is electrically connected to the chip thermistor.
Resumen de: WO2025135611A1
A battery pack according to an embodiment disclosed in the present document may include: a plurality of battery cells; a first material positioned between the plurality of battery cells; a piezoelectric sensor adjacent to the first material; a temperature sensor for sensing the temperature of the plurality of battery cells; and a battery management device for determining an abnormality of the plurality of battery cells, an abnormality of the piezoelectric sensor, and an abnormality of the temperature sensor, on the basis of information received from the piezoelectric sensor and the temperature of the plurality of battery cells.
Resumen de: WO2025135662A1
The present invention relates to an electrode assembly. The electrode assembly according to an aspect of the present invention may comprise: a stack part in which electrodes and separators are alternately interposed and which has a first side and a second side perpendicular to the first side; electrode tabs which are connected to the electrodes and protrude outward from the first side of the stack part through a gap between the separators; openings provided on the second side of the stack part so that gas between the separators can flow to the outside therethrough; and a fixing member which fixes the electrodes and the separators and covers at least some of the openings.
Resumen de: WO2025135626A1
Provided is a lithium secondary battery comprising: a positive electrode comprising lithium sulfur (Li2S); a negative electrode; an electrolyte layer disposed between the positive electrode and the negative electrode; and a metal-organic framework.
Resumen de: WO2025135655A1
A battery assembly according to one embodiment of the present invention may comprise: a pair of battery cells connected in parallel to each other; a circuit board arranged on one end portion of the pair of battery cells so as to be electrically connected to the pair of battery cells; and a wire thermistor which senses the temperature of the pair of battery cells, and which is electrically connected to the pair of battery cells and the circuit board.
Resumen de: WO2025136003A1
The present embodiments relate to a positive electrode active material precursor for a lithium secondary battery, a positive electrode active material, and a positive electrode comprising same. A positive electrode active material precursor for a lithium secondary battery according to an embodiment is a nickel-containing metal hydroxide containing nickel in the range of 0.6 to 0.75 mol relative to a total of 1 mol of transition metals, wherein the metal hydroxide has a zeta potential of -8 mV or higher and a specific surface area (BET) in the range of 4 m2/g to 11 m2/g.
Resumen de: WO2025135999A1
The present invention relates to a lithium secondary battery having excellent low-temperature lifespan characteristics. The lithium secondary battery of the present invention comprises: an anode comprising an anode mixture layer that includes a first anode active material, a second anode active material, an anode conductive material and an anode binder; a cathode comprising a cathode mixture layer that includes a cathode active material, a cathode conductive material and a cathode binder; and an electrolyte. CFC defined in relation (1) is 0.38 to 1.962. Relation (1): CFC = 100×Wc - {(D50, a1×D50, a2×L×RN/P×1010)/MWC} In relation (1), Wc is the ratio of the weight of the anode conductive material to the total weight of the anode mixture layer, MWC is the weight value of 1 mole of carbon measured in units of g, D50, a1 is the D50 value of the first anode active material measured in units of m, D50, a2 is the D50 value of the second anode active material measured in units of m, L is the weight value of the anode active material per unit area of the anode mixture layer disposed on a cross-section of the anode, measured in units of g/25cm2, and RN/P is the ratio of the capacity of the anode to the capacity of the cathode.
Resumen de: WO2025135966A1
The present invention relates to a method and a device for solid-state battery pressurization evaluation. The method comprises the steps of: (1) manufacturing a test sample by positioning a pressure-sensitive member on at least one of the top surface and bottom surface of a solid-state battery including a cathode, an anode, and a solid electrolyte layer positioned between the cathode and the anode; (2) pressurizing the test sample in the thickness direction of the solid-state battery; (3) obtaining image information of the pressure-sensitive member after the completion of the pressurization in the step (2); and (4) determining the pressure distribution of the solid-state battery from the obtained image information of the pressure-sensitive member. The device comprises a pressurization means for providing image information to the test sample and the pressure-sensitive member so as to identify the pressure distribution.
Resumen de: WO2025135970A1
A container module according to an embodiment of the present invention may include: a case which provides an inner space; a first battery array which is positioned in the case and includes multiple battery packs stacked in an up-down direction; a second battery array which is positioned in the case, includes multiple battery packs stacked in the up-down direction, and is spaced apart from the first battery array along a left-right direction; a cooling part which provides cooling air into the case; and a duct which is positioned in the case and allows the first battery array and the second battery array to communicate with the cooling part.
Resumen de: WO2025136831A1
Prelithiated negative electrodes are prepared under controlled conditions. Lithium foils are laminated onto active material layers using sufficient pressure such that heat is generated upon initiation of reaction of between lithium and the active material. The reaction proceeds to completion with the laminated assembly maintained under solvent-free, temperature controlled conditions for up to about 24 hours. The prelithiated negative electrode active material has a voltage against lithium metal of not more than about 1V at a value of lithium uptake of 10% of capacity, and irreversible capacity loss associated with the active material has been eliminated. Roll-to-roll processes and apparatus are described for safe manufacture of hundreds of meters of the prelithiated negative electrodes which can be taken up in roll form to be cut and assembled with other components to form lithium ion cells
Resumen de: WO2025136815A1
A method, an apparatus, and a system for producing a lithium film are described. The apparatus/system may include a chamber having an inlet and an outlet, the chamber configured for intaking a fluid via the inlet and removing the fluid via the outlet; an anode; a holder configured to mount a substrate, the holder configured as a cathode; and a power source configured to supply a current across the anode and the cathode. In various embodiments, the inlet is oriented with respect to a surface of the substrate such that the fluid flowing through the inlet and arriving at the surface of the substrate is greater than 500 cm3 per minute or at a flow velocity greater than 900 cm per minute, and lithium ions contained within the fluid are electrochemically reduced and plated to form a lithium metal film on the surface of the substrate.
Resumen de: WO2025136254A1
The invention relates to a pin and/or plate type structure that can be easily installed, which increases the efficiency of the cooling plate that provides cooling of the battery modules used in electric vehicles, which ensures a homogeneous heat distribution inside the battery pack, which reduces battery aging by preventing the batteries in the module from overheating, and which increases the efficiency of the cooling plate.
Resumen de: WO2025136077A1
Provided is a battery cell stacking system comprising: a stacking worktable in which a cell stack including one or more battery cells is manufactured; and a stacking device for stacking the one or more battery cells on the stacking worktable. The stacking device is configured to perform: a first operation of rotating around a rotation shaft connected to the stacking device in a state in which the one or more battery cells are seated; and a second operation of moving toward the stacking worktable to supply the one or more battery cells to the stacking worktable.
Resumen de: WO2025136067A1
A cathode active material for a lithium secondary battery according to an embodiment includes: a metal oxide including nickel and manganese; and a coating layer located on the surface of the metal oxide and containing cobalt, wherein the content of nickel in the metal oxide is 0.75 mol or less based on 1 mol of the total metals excluding lithium, and expression 1 may be satisfied. Expression 1 22.0 ≤(A*C)/B ≤ 26.5 (wherein, in expression 1, A and B are an a-axis constant and a c-axis constant measured by XRD analysis with respect to the cathode active material, respectively, and C is a grain size measured by XRD analysis for the cathode active material)
Resumen de: WO2025135649A1
According to some embodiments, a simulation system comprises: an interface panel configured to receive an operation input from a worker; a main simulator configured to load training content for reproducing an end of line (EOL) process for manufacturing a cylindrical battery on the basis of the operation input, and provide the training content to the worker through interaction with the worker; and a display configured to display a detailed image according to detailed processes of the EOL process.
Resumen de: WO2025135607A1
The present invention relates to a solid electrolyte membrane, a method for manufacturing same, and an all-solid-state battery comprising same. More specifically, the solid electrolyte membrane comprises a first solid electrolyte layer and a second solid electrolyte layer, which are stacked adjacent to each other, wherein the first solid electrolyte layer has a structure where particulate binders are simply dispersed, and the second solid electrolyte layer has a structure where fibrous binders are entangled with or connected to each other, so that the solid electrolyte membrane can exhibit enhanced strength without a deterioration in the ionic conductivity.
Resumen de: WO2025135592A1
An apparatus for managing a battery according to an embodiment of the present invention includes: a storage unit configured to store battery information including a voltage and a current; and a control unit configured to calculate the rate capability for each voltage interval of the battery on the basis of the battery information, compare the rate capability calculated for each of the plurality of voltage intervals with a preset reference rate capability, and determine the state of the battery on the basis of the comparison result.
Resumen de: WO2025134161A1
The present invention discloses the phenolic resin-based hard carbon-graphite composite as anode material for secondary batteries. More particularly, the present invention discloses a phenolic resin based hard carbon anode material synthesis method and its use as a high-capacity anode material.
Resumen de: WO2025135606A1
The present invention relates to a solid electrolyte membrane and an all-solid-state battery comprising same. More specifically, the solid electrolyte membrane comprises a first solid electrolyte layer and a second solid electrolyte layer, which are stacked adjacent to each other, the first solid electrolyte layer containing a first solid electrolyte and a first fibrous binder, the second solid electrolyte layer containing a second solid electrolyte and a second fibrous binder, wherein the content of the first fibrous binder contained in the first solid electrolyte layer is smaller than the content of the second fibrous binder contained in the second solid electrolyte layer. The weight of the first fibrous binder contained in the first solid electrolyte layer is smaller than the weight of the second fibrous binder contained in the second solid electrolyte layer, so that the solid electrolyte membrane can exhibit enhanced strength without a deterioration in the ionic conductivity.
Resumen de: WO2025135998A1
A battery module according to one embodiment of the present invention comprises: a battery cell stack in which a plurality of battery cells are stacked; a module case for accommodating the battery cell stack; and an end plate disposed outside the module case, wherein the module case has a bent end portion that is bent from a side surface of the module case, and the end plate has a seating portion on which the bent end portion is seated.
Resumen de: WO2025136001A1
A positive electrode active material for a lithium secondary battery according to one embodiment is a nickel-containing layered lithium transition metal oxide and is composed of single particles including at least one of single particles composed of one primary particle and quasi-single particles formed by aggregating a plurality of primary particles, wherein the single particles comprise, on average, 5 to 15 primary particles, have an average particle diameter (D50) of 5 μm to 8 μm, and may have an average sphericity of 0.75 or more.
Resumen de: WO2025135989A1
The present invention relates to an electrolyte for use in a lithium-sulfur battery, the electrolyte being characterized by comprising: a non-aqueous solvent; a lithium salt; and additives, wherein a nitrate and a Li2Sx-P2S5 composite (1≤x) are included as the additives to achieve the effect of improving the coulombic efficiency and lifespan of the lithium-sulfur battery.
Resumen de: WO2025135939A1
This lithium secondary battery may comprise a battery can, an electrode assembly and an electrolyte contained in the battery can, and a cap plate configured to seal the battery can. The battery can may include a first end and a second end opposite to the first end. The lithium secondary battery is configured such that, if the internal pressure of the battery can is 21 kgf/cm2 or higher, at least a part of the battery assembly is discharged through the first end of the battery can. After a part of the battery assembly is discharged through the first end of the battery can, the distance from an end of the electrode assembly located farthest from the battery can to the second end of the battery can is at least 1.25 times the distance between the first end and the second end of the battery can.
Resumen de: WO2025135902A1
The present invention relates to an adhesive film for a secondary battery, the adhesive film comprising: an outer insulating layer; and an adhesive layer positioned on one surface of the outer insulating layer, wherein the contact angle of the adhesive layer is 100° or more, and the wetting tension of the adhesive layer is less than 30 mN/m.
Resumen de: WO2025135926A1
The present invention relates to: a separator comprising a porous substrate, a ceramic coating layer provided on at least one of respective surfaces of the porous substrate, and a positively charged self-assembled monolayer provided on the ceramic coating layer; a method for manufacturing the separator; and a secondary battery comprising the separator.
Resumen de: WO2025136059A1
The present invention provides a method by which a computing device predicts a battery charge/discharge current, comprising the steps of: acquiring, according to a charge/discharge current profile of a battery, training data and verification data including a temperature profile; using the training data to train a machine learning model; using the verification data to verify and retrain the trained machine learning model; and using the machine learning model to predict a current profile according to the temperature profile of the battery.
Resumen de: WO2025136050A1
The present invention relates to a cathode active material for a lithium secondary battery, the cathode active material comprising: a lithium metal oxide having a nickel (Ni)-containing layered crystal structure in single particle form; and a coating layer surrounding the entire surface of the lithium metal oxide and containing a zirconium (Zr) compound, wherein the zirconium compound includes Li2ZrO3 and ZrO2, and the content of Li2ZrO3 is 10-53 wt% on the basis of the total weight of Li2ZrO3 and ZrO2.
Resumen de: WO2025135846A1
The present invention relates to a method for manufacturing a pre-lithiated negative electrode, a negative electrode having improved air stability prepared thereby, and a lithium secondary battery comprising the negative electrode, the method comprising the steps of: wetting a negative electrode active material layer including a silicon-based negative electrode active material with a pre-lithiation electrolyte; and bringing a lithium metal layer into contact with at least one surface of the negative electrode active material layer wetted with the pre-lithiation electrolyte, wherein the pre-lithiation electrolyte includes a lithium salt having a concentration of greater than 3M and a non-aqueous solvent.
Resumen de: WO2025135834A1
A container module according to one embodiment of the present invention may comprise: a case providing a space therein and including a side panel; a first side column positioned inside the case, extending in the vertical direction, and coupled to the side panel; a bracket positioned inside the case, coupled to the first side column, and extending in the front-rear direction; and a battery pack installed on the bracket.
Resumen de: WO2025135832A1
The present invention provides a lithium secondary battery comprising: a positive electrode; a negative electrode; a separator; and a non-aqueous electrolyte, wherein the positive electrode includes a positive electrode active material, the positive electrode active material includes lithium iron phosphate particles, the positive electrode has a loading amount of 450 mg/25 cm2 to 740 mg/25 cm2, the non-aqueous electrolyte includes a lithium salt, an organic solvent, and an additive, the additive includes at least one selected from the group consisting of compounds represented by chemical formulae 1 to 3 below, and the additive is included in the non-aqueous electrolyte in an amount of 0.1-3 wt%.
Resumen de: WO2025135564A1
The present invention relates to a lithium secondary battery with improved high-temperature cycle characteristics and, in particular, to a lithium secondary battery comprising: a positive electrode; a negative electrode; a separator; and an electrolyte, wherein the positive electrode includes lithium iron phosphate and lithium nickel cobalt manganese oxide as positive electrode active materials, the positive electrode has a loading amount of 32 mg/cm2 to 60 mg/cm2, the electrolyte includes: a lithium salt; a first organic solvent; a second organic solvent; a first additive; and a second additive, the first organic solvent is a cyclic lactone compound, the second organic solvent is a carbonate-based organic solvent, the first additive is an oligomer including repeating units derived from a monomer represented by chemical formula 1 and repeating units derived from a monomer represented by chemical formula 2, and the second additive is an imidazole-based compound.
Resumen de: WO2025135576A1
An apparatus for setting a charging protocol according to an embodiment of the present invention includes: a charging unit configured to charge a battery so that the battery repeatedly enters a charging state and an idle state; a measurement unit configured to measure the voltage of the battery while the battery is being charged; a temperature control unit configured to control the temperature of the battery while the battery is being charged; and a control unit configured to control the charging unit so that the battery is charged at a preset first C-rate, calculate the resistance for each state of charge (SOC) of the battery on the basis of the voltage drop in the idle state, determine a first charging upper limit SOC corresponding to the first C-rate on the basis of the SOC and the resistance, and set a charging protocol including a correspondence between the first C-rate and the first charging upper limit SOC.
Resumen de: WO2025135573A1
Provided is a battery cell comprising: at least one first electrode plate; at least one second electrode plate having the opposite polarity of the at least one first electrode plate; at least one separator disposed between the at least one first electrode plate and the at least one second electrode plate; and at least one insulation member mounted on the at least one first electrode plate, wherein the at least one insulation member includes a non-adhesive surface in contact with the at least one first electrode plate.
Resumen de: WO2025135559A1
The present invention relates to a solid electrolyte for all-solid-state batteries. According to an embodiment of the present invention, the solid electrolyte for all-solid-state batteries comprises an oxide having the chemical formula Li4B7-xAlxO12Cl, wherein x satisfies 2.25 ≤ x ≤ 2.76.
Resumen de: WO2025135575A1
Provided are an anode electrode including: an anode current collector; and an anode active material layer on one surface of the anode current collector, a lithium battery including same, and a manufacturing method therefor, wherein the anode active material layer includes a porous structure, the porous structure includes a first anode active material, the first anode active material includes an organic anode active material, and the organic anode active material includes a polyimide-based polymer.
Resumen de: WO2025135908A1
The present invention relates to a lithium secondary battery comprising: an electrode assembly including a cathode, an anode and a separator; an electrolyte; and a battery case for accommodating the electrode assembly and the electrolyte, wherein the anode comprises an anode active material layer including graphite and a Si/C composite, the cathode comprises a cathode active material layer including a lithium transition metal oxide represented by chemical formula 1, the electrolyte comprises a non-fluorinated saturated cyclic carbonate and a fluorine-based compound in a ratio of 40:1 to 40:20 by weight, the fluorine-based compound is included in an amount of 1-5 wt% on the basis of the total weight of the electrolyte, and the graphite and the Si/C are included in a ratio of 93.1:6.9 to 99.9:0.1 by weight in the anode active material layer. Chemical formula 1 Li1+x1Niy1Coz1Mnw1M1 v1O2 All variables in chemical formula 1 are the same as those described in the specification.
Resumen de: WO2025135920A1
The present invention relates to an electrode assembly including: an electrode laminate in which electrodes and separators are alternately interposed; and electrode leads extending from the electrodes, wherein the thickness of the electrode laminate is 15 times or more the thickness of the electrode leads so as to prevent or suppress heat propagation to an adjacent second battery.
Resumen de: WO2025135940A1
The present invention relates to: a lithium secondary battery having improved safety when high heat is applied from an external heat source, since the relationship among the size of the secondary battery, the content of remaining ethylene carbonate, and the reaction area of a negative electrode satisfies specific conditions; and to a method for evaluating thermal safety of a lithium secondary battery, whereby, through the information, thermal safety of a cylindrical lithium secondary battery can be evaluated.
Resumen de: WO2025135994A1
According to exemplary embodiments, a battery cell assembly is provided. The battery cell assembly includes: a plurality of battery cells each including a positive lead and a negative lead; and an integrated circuit assembly including an integrated circuit coupled to the plurality of battery cells and configured to measure voltages of the plurality of battery cells, wherein the integrated circuit assembly includes: an insulating frame; an integrated circuit mounted on the insulating frame; a plurality of sensing plates connected to the integrated circuit; and a temperature sensor configured to sense the temperature of one of the plurality of sensing plates.
Resumen de: WO2025135903A1
The present invention relates to a lithium secondary battery comprising: an electrode assembly including a cathode, an anode, and a separator; an electrolyte; and a battery case including an inner space for accommodating the electrode assembly and the electrolyte, wherein the cathode comprises a cathode active material, and the cathode active material includes a lithium nickel-based oxide including 50 mol% to 70 mol% of nickel among all metals exclusive of lithium and has an Electrolyte Filling Factor (Eff) index (unit: g/Ah) of 1.52 to 1.88 as defined by the following equation 1. Equation 1 In Equation 1, RE unit: g refers to the weight of residual electrolyte contained in the lithium secondary battery after activation, SU refers to the ratio (SE/SC) of the volume of the electrode assembly (SE) to the volume of the lithium secondary battery (SC), and NC unit: Ah refers to the capacity when the lithium secondary battery is discharged from 4.4V to 3.0V at 0.33C at 25°C.
Resumen de: WO2025135750A1
The present invention relates to a cathode active material for lithium secondary battery, comprising: a lithium metal oxide having a layered crystal structure containing nickel (Ni) in the form of single particles; and a coating layer covering the entire surface of the lithium metal oxide and containing an aluminum (Al) compound, wherein the aluminum compound includes LiAlO2 and Al2O3, and the content of the LiAlO2 is 12 to 40 wt% based on the total weight of the LiAlO2 and the Al2O3.
Resumen de: WO2025135830A1
The present invention relates to a lithium secondary battery comprising: a positive electrode; a negative electrode; a separator interposed between the positive electrode and the negative electrode; and a non-aqueous electrolyte, wherein the positive electrode comprises a positive electrode active material, the positive electrode active material comprises a lithium transition metal oxide represented by chemical formula A below, the non-aqueous electrolyte comprises a lithium salt, an organic solvent, and an additive, the organic solvent comprises a linear carbonate, the linear carbonate comprises diethyl carbonate, the diethyl carbonate is included in an amount of 5 vol % to 25 vol % with respect to the total volume of the organic solvent, and the additive comprises lithium bis(oxalato)borate. Chemical formula A Li1+xNiaCobMncM1 dO2+w In chemical formula A, 0≤x≤0.5, a+b+c+d = 1, 0.5≤a≤0.7, 0≤b≤0.15, c=1-a-b-d, 0≤d≤0.1, 0≤b/a≤0.2, 1≤a/c≤3, 0≤w≤1, and M1 is at least one selected from among W, Cu, Fe, V, Cr, Ti, Zr, Zn, Al, In, Ta, Y, La, Sr, Ga, Sc, Gd, Sm, Ca, Ce, Nb, Mg, B, and Mo.
Resumen de: WO2025135749A1
The present invention relates to a cathode active material for a lithium secondary battery, the cathode active material comprising: a lithium metal oxide in a discrete particle form with a nickel (Ni)-containing layered crystal structure; and a coating layer encompassing the entire surface of the lithium metal oxide and containing an aluminum (Al) compound, wherein the lithium metal oxide has a c-axis lattice constant of 14.14-14.22 Å during X-ray diffraction pattern analysis and the average thickness of the coating layer is 0.5-1.5 nm.
Resumen de: WO2025135885A1
The present invention relates to a cathode for a sodium secondary battery, comprising: a current collector; a first cathode active material layer disposed on the current collector; and a second cathode active material layer disposed on the first cathode active material layer, wherein the first cathode active material layer includes a first cathode active material, and the second cathode active material layer includes a second cathode active material. The first cathode active material includes sodium composite transition metal oxide particles having an O3 octahedral crystal structure, the second cathode active material includes Prussian blue analogue particles, and an average particle diameter (D50) ratio of the first cathode active material and the second cathode active material is 2:1 to 10:1.
Resumen de: WO2025135827A1
The present invention provides a non-aqueous electrolyte comprising: a lithium salt; an organic solvent; and an additive, wherein the additive comprises a compound represented by a specific chemical formula. The non-aqueous electrolyte forms a stable film on a positive electrode and a negative electrode, thereby improving long-term durability and lifespan performance of a lithium secondary battery.
Resumen de: WO2025135570A1
The present invention relates to a method for activating an all-solid-state battery comprising a positive electrode, a negative electrode, and a solid electrolyte layer interposed between the positive electrode and the negative electrode, the method comprising: a first charging step of charging the all-solid-state battery at a first current density; and a first discharging step of discharging the all-solid-state battery at a second current density greater than the first current density after the first charging step.
Resumen de: WO2025135539A1
The present invention provides a method for predicting ion distribution in a lithium-sulfur battery. In one embodiment, the method for predicting ion distribution in a lithium-sulfur battery may comprise: a first step of forming ion distribution image data in the battery by inputting a boundary value of the battery and an initial value of the battery into a data formation unit that includes a battery internal ion distribution prediction model based on numerical analysis; and a second step of inputting an initial battery state and the ion distribution image data obtained in the first step into an image generation unit so as to output an ion distribution prediction image through an LSTM-based artificial intelligence block.
Resumen de: WO2025135552A1
An embodiment of the present invention provides bimodal positive active material comprising first and second lithium metal oxide, the average particle diameter (D50) of the first lithium metal oxide being larger than the average particle diameter (D50) of the second lithium metal oxide. The first and second lithium metal oxide comprise first and second coating layers, respectively, coating the entire or a part of the surface, and the first and second coating layers contain a Zr- or Nb-containing compound or a combination thereof, and the Zr- and Nb-containing compounds are represented by chemical formulae 1 and 2, respectively. Chemical formula 1 LixZryOz Chemical formula2 LiaNbbOc In chemical formula 1, 0
Resumen de: WO2025135548A1
The present invention relates to a battery module. The battery module according to one aspect of the present invention comprises: a housing; and a battery assembly that includes a battery cell accommodated inside the housing, an inner heat transfer member surrounding the circumference of the battery cell, and an outer heat transfer member surrounding the outer surface of the inner heat transfer member along the circumference of the battery cell, wherein any one heat transfer member from among the inner heat transfer member and the outer heat transfer member can be made of a material with an elasticity or fluidity greater than that of the other heat transfer member.
Resumen de: WO2025135543A1
A lithium secondary battery according to embodiments of the present disclosure may comprise a positive electrode including a positive electrode active material which includes a lithium metal oxide in the form of a secondary particle in which a plurality of primary particles are aggregated, and is doped with a positive electrode doping element. In addition, the lithium secondary battery may comprise a negative electrode which includes a negative electrode active material including: a silicon-based active material, including silicon oxide; and a carbon-based active material, and faces the positive electrode. An aspect ratio of the primary particles may be 1.4-7.0, and an amount of the composite active material may be 1-50 wt% with respect to the total weight of the negative electrode active material.
Resumen de: WO2025135917A1
The present invention relates to a dry electrode comprising: a current collector; and an electrode composite film disposed on the current collector, wherein the electrode composite film includes an electrode active material and a fiberizable binder, and with respect to the surface of the current collector, has a ratio (IB/IA) of C3H7 + peak intensity (IB) to C2H3O+ peak intensity (IA) measured by time-of-flight secondary ion mass spectrometry (ToF-SIMS) of 1.3 or less, and a ratio of carbon content at the interface of the current collector to carbon content inside the electrode composite film measured by scanning electron microscope-energy dispersive X-ray spectroscopy of 1.03 or less.
Resumen de: WO2025135971A1
A positive electrode for a secondary battery according to embodiments disclosed herein may comprise: a positive electrode current collector; and a positive electrode active material layer formed on the positive electrode current collector and including a positive electrode active material and a solid electrolyte. The solid electrolyte may include a first solid electrolyte and a second solid electrolyte having a larger particle diameter than the first solid electrolyte, the porosity of the positive electrode active material layer may be 10% to 20% (exclusive of 20%), and the mixture density of the positive electrode active material layer may be 2.3 g/cc or more. Thus, the initial efficiency and capacity retention of the secondary battery may be improved.
Resumen de: WO2025135901A1
The present invention relates to a positive electrode material comprising a positive electrode active material, the positive electrode material comprising: lithium nickel-based oxide particles in secondary-particle form, each secondary particle being an aggregate of a plurality of primary particles, wherein the content of Ni is 50 mol % to 90 mol % of the total metal excluding lithium; and a coating layer formed on the surface of the lithium nickel-based oxide particles and containing boron (B), wherein the BET specific surface area of the positive electrode material is 0.41m2/g to 0.59m2/g, and the average crystallite size of the positive electrode material is 155 nm or greater.
Resumen de: WO2025135918A1
The present invention relates to a dry electrode comprising: a current collector; and an electrode composite film disposed on the current collector, wherein the electrode composite film includes an electrode active material and a fiberizable binder, the ratio (IB/IA) of C3H7 + peak intensity (IB) to C2H3O+ peak intensity (IA) measured for the surface of the current collector by time-of-flight secondary ion mass spectrometry (ToF-SIMS) is 1.3 or less, and the ratio of the carbon content at the interface of the current collector to the carbon content inside the electrode composite film as measured by scanning electron microscope-energy dispersive X-ray spectroscopy is at least 1.08.
Resumen de: WO2025135882A1
The present invention relates to a cathode for a sodium secondary battery, comprising: a current collector; a first cathode active material layer arranged on the current collector; and a second cathode active material layer arranged on the first cathode active material layer, wherein the first cathode active material layer includes a first cathode active material, the second cathode active material layer includes a second cathode active material, the first cathode active material includes sodium composite transition metal oxide particles with an O3 octahedral crystal structure, the second cathode active material includes sodium composite transition metal oxide particles with a P2 orthorhombic crystal structure, and the ratio of average particle diameters (D50) of the first cathode active material to the second cathode active material is 2:1 to 3:1.
Resumen de: WO2025135807A1
The present invention relates to a negative electrode material for a lithium secondary battery and a secondary battery comprising same, wherein the negative electrode material for a lithium secondary battery and the secondary battery comprising same, according to the present invention, may exhibit high output, excellent cycle characteristics, and uniform electrochemical properties.
Resumen de: WO2025135806A1
The present invention relates to a negative electrode material for a secondary battery having high output, excellent cycle characteristics, and uniform electrochemical characteristics. The negative electrode material for a secondary battery, according to the present invention, comprises: a silicon-based core; and a carbon coating layer positioned on the surface of the silicon-based core, wherein the intensity ratio (ID/IG) of a D band peak and a G band peak in a Raman spectrum of the carbon coating layer is 1.3 or less, the ratio (FD/FG) of the full width at half maximum (FWHM) of the D band and G band peaks is 1.3 or more, and, in an infrared spectrum, the area (A1) of a peak of a first wavenumber (n1) in the range of 1400 to 1625±5 ㎝-1 is smaller than the area (A2) of a peak of a second wavenumber (n2) in the range of 1625±5 to 2100 ㎝-1 .
Resumen de: WO2025135812A1
The present invention relates to a negative electrode material for a secondary battery, and a secondary battery comprising same. The negative electrode material for a secondary battery, according to the present invention, comprises a silicon-based core and a carbon coating layer positioned on the surface of the silicon-based core, and can exhibit high output, excellent cycle characteristic, and uniform electrochemical characteristics.
Resumen de: WO2025135894A1
The present invention relates to a negative electrode having excellent rapid charging performance and swelling characteristics, and a method for preparing same. The negative electrode of the present invention comprises a negative electrode mixture layer including a Si-based negative electrode active material and a carbon-based negative electrode active material, and the 85° glossiness of the surface of the negative electrode mixture layer in a fully discharged state after activation is 14 to 25.
Resumen de: WO2025135531A1
The present invention relates to a cathode active material for an all-solid-state battery and a method of manufacturing same. Specifically, the present invention relates to: a cathode active material for an all-solid-state battery, wherein a lithium metal oxide is washed with a solution containing CoSO4, thus precipitating cobalt on the surface; and a method for manufacturing same.
Resumen de: WO2025135528A1
The present invention relates to a lithium secondary battery having improved high-temperature cycle characteristics and, more specifically, to a lithium secondary battery comprising a positive electrode, a negative electrode, a separator, and an electrolyte, wherein the positive electrode includes lithium iron phosphate as a positive electrode active material, and the electrolyte includes a lithium salt, a first organic solvent, a second organic solvent, and an additive. The first organic solvent is a cyclic lactone compound, the second organic solvent is a carbonate-based organic solvent, and the additive is lithium nitrate (LiNO3). The lithium secondary battery satisfies equation 1. Equation 1. In equation 1, A is the total injection amount (g) of the electrolyte injected into the lithium secondary battery, B is the content (wt%) of lithium nitrate (LiNO3) contained in the injected electrolyte, C is the loading amount (g/cm2) of the positive electrode, and D is the total area (cm2) of the surface of a positive electrode current collector.
Resumen de: WO2025135522A1
The present invention relates to a cathode material comprising: a first cathode active material comprising a lithium manganese-based oxide having a spinel structure; and a second cathode active material having a layered structure and comprising a lithium nickel-based oxide including nickel (Ni), cobalt (Co), manganese (Mn), and aluminum (Al), wherein the lithium manganese-based oxide and the lithium nickel-based oxide are single-particle particles.
Resumen de: WO2025135445A1
An anode for a secondary battery according to an embodiment comprises: an anode current collector; a first anode mixture layer formed on at least one surface of the anode current collector and comprising a first silicon-based active material; and a second anode mixture layer formed on the first anode mixture layer and comprising a second silicon-based active material, wherein the first silicon-based active material comprises composite particles that comprise silicon, the second silicon-based active material comprises a silicon oxide (SiOx, 0
Resumen de: WO2025135431A1
A battery module according to an embodiment of the present invention includes: a battery cell stack in which a plurality of battery cells are stacked; a module case for accommodating the battery cell stack; a bus bar frame disposed on one side of the battery cell stack; and two insulation covers disposed on both sides of the battery cell stack, wherein one of the two insulation covers comprises a pressing pad, the other insulation cover is disposed on the outer side of the bus bar frame, and the pressing pad of the one insulation cover presses on the battery cell stack in the direction of the other insulation cover disposed on the outer side of the bus bar frame.
Resumen de: WO2025135748A1
The present invention relates to a cathode active material for a lithium secondary battery, the cathode active material comprising: a lithium metal oxide having a nickel (Ni)-containing layered crystal structure in a single particle form; and a coating layer disposed on the surface of the lithium metal oxide and containing cobalt (Co) and fluorine (F), wherein in X-ray photoelectron spectroscopy (XPS) analysis of O1s on the outermost surface of the cathode active material, a first peak appears in a binding energy range of 530 eV to 532 eV, a second peak appears in a binding energy range of 528.5 eV to 529.5 eV, and the ratio of the height of the first peak to the height of the second peak (first peak/second peak) is from 3 to 3.5.
Resumen de: WO2025135873A1
A cathode for a secondary battery, according to an embodiment of the present disclosure, comprises: a cathode current collector; and a cathode mixture layer, which is formed on at least one surface of the cathode current collector and includes a cathode active material and a polymer, wherein the polymer comprises a vinylidene-based polymer including a halogen element, and the crystallinity of the polymer is 10-60%.
Resumen de: WO2025135876A1
The present invention relates to a lithium secondary battery and a method for manufacturing same, the lithium secondary battery including: an electrode assembly including a positive electrode, a negative electrode, and a separator interposed between the positive electrode and the negative electrode; an electrolyte including a lithium salt and an organic solvent; and a battery case accommodating the electrode assembly and the electrolyte, wherein Y defined by equation 1 has a value of 0.15 to 0.30.
Resumen de: WO2025135889A1
The present invention relates to a positive electrode active material comprising a single-particle lithium nickel-based oxide expressed by Chemical formula 1, and a coating layer disposed on the surface of the single-particle lithium nickel-based oxide, wherein the ratio RPI2/RPI1 of RPI2 defined by Formula 2 below against RPI1 defined by Formula 1 below is 1-1.3. Chemica formula 1 LixNiaCobM1 cM2 dO2 In Chemical formula 1 above, M1 is Mn, Al, or a combination thereof, M2 comprises at least one selected from the group consisting of Ti, Mg, Zr, Y, Ba, Ca, Sr, W, Ta, Nb, and Mo, and 0.9≤x≤1.1, 0.8≤a<1, 0
Resumen de: WO2025135798A1
The present invention relates to a negative electrode active material. Specifically, the negative electrode active material comprises: artificial graphite particles; and a nitrogen element, an oxygen element, and a hydrogen element present on the surface of, inside, or both on the surface of and inside the artificial graphite particles, wherein the content of the nitrogen element is 80 to 180 mg per kg of the negative electrode active material.
Resumen de: WO2025135746A1
The lithium sulfide powder according to the present invention comprises 2 wt % or less of Li2O 2 on the basis of the total 100 wt% thereof, wherein the lithium sulfide powder has an oxygen content of 1 wt% or less and a carbon content of 0.15 wt% or less.
Resumen de: WO2025135831A1
The present invention relates to a method for manufacturing a lithium secondary battery, the method comprising the steps of: preparing an electrode assembly that includes a cathode, an anode and a separator; accommodating the electrode assembly in a battery case; manufacturing a pre-lithium secondary battery by injecting a first non-aqueous electrolyte into the battery case; activating the pre-lithium secondary battery; and injecting a second non-aqueous electrolyte into the activated pre-lithium secondary battery, wherein the first non-aqueous electrolyte includes a first organic solvent including a linear carbonate-based solvent, and the second non-aqueous electrolyte includes a second organic solvent including an ester-based solvent.
Resumen de: WO2025135804A1
An aspect of the present invention relates to a negative electrode material for a lithium secondary battery, a lithium secondary battery including the negative electrode material and a method for manufacturing same, the negative electrode material including a silicon-carbon composite capable of ensuring high capacity characteristics and excellent lifespan characteristics and including silicon nanoparticles, crystalline carbon, and first amorphous carbon, wherein the silicon nanoparticles and the crystalline carbon are distributed in the first amorphous carbon, wherein the silicon nanoparticles have a Dmax particle size of less than 250 nm and a grain size of 16.5 nm or more and less than 18 nm.
Resumen de: WO2025135810A1
The present invention relates to a negative electrode material for a secondary battery and a secondary battery comprising same, and the negative electrode material for a secondary battery, according to the present invention, comprises a silicon-based core and a carbon coating layer located on the surface of the silicon-based core, and may have high output, excellent cycle characteristics, and uniform electrochemical characteristics.
Resumen de: WO2025135809A1
The present invention relates to a negative electrode material for a secondary battery and a secondary battery comprising same and, more specifically, to a negative electrode material for a secondary battery that exhibits high output, excellent cycle characteristics, and uniform electrochemical properties.
Resumen de: WO2025135811A1
The present invention relates to a negative electrode material for a secondary battery, and a secondary battery comprising same. The negative electrode material for a secondary battery, according to the present invention, comprises a silicon-based core and a carbon coating layer located on the surface of the silicon-based core, and can have high output, excellent cycle characteristics, and uniform electrochemical characteristics.
Resumen de: WO2025135413A1
The present invention relates to a battery unit and a battery system comprising same, and the battery unit may communicate with an upper controller in preset periods and may achieve a cell balancing effect on the basis of power consumed to communicate with the upper controller. The battery system according to an embodiment of the present invention comprises: a plurality of battery units; and an upper controller that wirelessly communicates with a battery unit allocated as a master unit, from among the plurality of battery units, wherein the plurality of battery units are respectively allocated as master units for communicating with the upper controller in different periods.
Resumen de: WO2025135403A1
Microspheres for lithium secondary batteries, according to the present invention, may each include: silicon (Si) nanocrystals; an amorphous compound including a transition metal and a chalcogen; and carbon nanotubes (CNTs). A method for preparing the microspheres for lithium secondary batteries, according to the present invention, may include the steps of: preparing a mixture by mixing a transition metal salt, a carbon source, and silicon (Si) nanopowder; producing droplets through ultrasonic spraying of the mixture; performing spray pyrolysis on the droplets; performing a first heat-treatment on the microspheres obtained through the spray pyrolysis; performing a secondary heat treatment for chalcogenization on the microspheres obtained through the first heat treatment; and performing a third heat treatment for oxidation on the microspheres obtained through the second heat treatment. A negative electrode material composition for lithium secondary batteries, according to the present invention, may include the microspheres. A lithium secondary battery, according to the present invention, may include the microspheres.
Resumen de: WO2025135443A1
An anode for a secondary battery according to an embodiment comprises: an anode current collector; a first anode mixture layer formed on at least one surface of the anode current collector and comprising a first silicon-based active material; and a second anode mixture layer formed on the first anode mixture layer and comprising a second silicon-based active material, wherein the second silicon-based active material may comprise an active material in which a carbon coating layer is formed on composite particles that comprise silicon, and the amount of the second silicon-based active material included, based on the total weight of the second anode mixture layer, may exceed the amount of the first silicon-based active material included, based on the total weight of the first anode mixture layer.
Resumen de: WO2025135426A1
The present invention relates to a method of disposal of waste batteries. The method of disposal of waste batteries, of the present invention, comprises the steps of: preparing a product acquired by reducing and heat-treating crushed material recovered from waste batteries at a high temperature; magnetically separating the product into a first magnetic substance and a first non-magnetic substance; pulverizing the first magnetic substance so as to separate the first magnetic substance into a second magnetic substance and a second non-magnetic substance; and performing flotation sorting on the first non-magnetic substance.
Resumen de: WO2025135887A1
The present invention relates to a cathode active material comprising: a lithium composite transition metal oxide in the form of a single particle consisting of one nodule or a pseudo-single particle which is a composite of 30 or fewer nodules; and a coating layer including a first coating layer formed on the surface of the lithium composite transition metal oxide and a second coating layer formed on the surface of the first coating layer, wherein the lithium composite transition metal oxide has a roundness of 0.50-0.68 as defined by equation 1, and the second coating layer includes boron, wherein the boron is included in a weight of 300 ppm to 2400 ppm, based on the total weight of the cathode active material. Equation 1 Roundness = (4×Area) / (π×R2) In equation 1, R indicates the length of a long axis passing through the center of the lithium composite transition metal oxide, and Area indicates the actual area of the lithium composite transition metal oxide.
Resumen de: WO2025135892A1
The present invention relates to a positive electrode and a method for manufacturing same, in which the positive electrode comprises a positive electrode mixture layer including a high-nickel positive electrode active material with a nickel content of 80 mol% or more of the total metals excluding lithium, and has an A of 1 or less as defined by expression (1). Expression (1): A = 0.00076 ln (-2.435 x (a/b) +268.4) x w. In expression (1), a is the length of the positive electrode mixture layer measured in mm units, b is the width of the positive electrode mixture layer measured in mm units, and w is the moisture content value of the positive electrode measured in ppm units.
Resumen de: WO2025135881A1
The present invention relates to a lithium secondary battery comprising: an electrode assembly comprising a positive electrode, a negative electrode, and a separator interposed between the positive electrode and the negative electrode; an electrolyte; and a battery case for receiving the electrode assembly and the electrolyte therein, wherein the electrolyte comprises a lithium salt and an organic solvent, and a P value defined by formula 1 below is less than 8.7. In formula 1, H (unit: mm) means the height of the lithium secondary battery, R (unit: mm) means the diameter of the lithium secondary battery, ta (unit: μm) means the thickness of the negative electrode, La (unit: g/25 cm2) means the loading amount of the negative electrode, Pa (unit: %) means the porosity of the negative electrode, and Vc (unit: cm3) means the volume of an empty space inside the lithium secondary battery.
Resumen de: WO2025135844A1
A battery cell stack according to an embodiment of the present invention includes: a plurality of battery cells which each include an electrode assembly having electrode tabs, and an exterior material accommodating the electrode assembly, and which are arranged in parallel to each other; and compression pads interposed between the plurality of battery cells. The compression pads each include: a main portion; and side portions which are disposed at the end portions of the main portion, have a compression rate lower than that of the main portion, and overlap side portions of the electrode tabs of the battery cells with respect to the thickness direction of the compression pad.
Resumen de: WO2025135808A1
The present invention relates to: a negative electrode material for a secondary battery; and a secondary battery comprising same. The negative electrode material for a secondary battery according to the present invention comprises a silicon-based core and a carbon coating layer located on the surface of the silicon-based core, and may have a high output, excellent cycle characteristics, and uniform electrochemical characteristics.
Resumen de: WO2025135791A1
The present invention provides a nonaqueous electrolyte comprising a lithium salt, an organic solvent, and a compound represented by chemical formula 1. In chemical formula 1, R1 and R2 are each independently any one selected from the group consisting of H, -OC≡CH, F, a nitrile group, an alkyl group having 1 to 10 carbon atoms, an alkenyl group having 2 to 10 carbon atoms, and an alkynyl group having 2 to 10 carbon atoms.
Resumen de: WO2025135721A1
According to one embodiment of the present invention, provided is a lithium secondary battery comprising: a positive electrode having a positive electrode mixture layer including a positive electrode active material and an inorganic solid electrolyte formed on one side or both sides of a positive electrode current collector; a negative electrode having a negative electrode mixture layer including a negative electrode active material formed on one side or both sides of a negative electrode current collector; a separator interposed between the positive electrode and the negative electrode; and a gel-type electrolyte, wherein the inorganic solid electrolyte is contained in an amount of 0.5 wt% to 2 wt% on the basis of the total weight of the positive electrode mixture layer and is uniformly distributed within the positive electrode mixture layer.
Resumen de: WO2025135713A1
The present invention relates to a battery stabilizer and a battery stabilization system, and comprises: an input unit for inputting a sagger into which waste battery crushed material has been loaded; a transport unit for transporting the sagger into which the waste battery crushed material has been loaded; a first stabilization unit for stabilizing the waste battery crushed material at a temperature of 30°C or lower; a second stabilization unit for stabilizing, at a temperature of 30°C to 150°C, the waste battery crushed material that has passed through the first stabilization unit; and a discharge unit for discharging the stabilized waste battery crushed material, wherein the sagger includes a hot air inlet for supplying heat to the waste battery crushed material.
Resumen de: WO2025135708A1
The present invention relates to a screw feeder for transferring battery shreds. The screw feeder comprises: a housing surrounding a screw arranged in parallel with the direction of movement of the battery shreds; an input unit to which the battery shreds are input; a transfer unit for transferring the battery shreds input to the input unit; and a discharge unit for discharging the battery shreds. The screw feeder satisfies Formula 1 in the present specification.
Resumen de: WO2025135311A1
The present invention relates to an electrolyte for a rechargeable lithium battery and a rechargeable lithium battery including same, the electrolyte comprising: a lithium salt; a non-aqueous organic solvent containing a solvent represented by chemical formula 1; and an additive represented by chemical formula 2. Chemical formula 1 Chemical formula 2 (The descriptions of each chemical formula are as given in the specification.)
Resumen de: WO2025135316A1
An inspection system for an all-solid-state secondary battery according to an embodiment comprises: a cut surface forming device for forming a cut surface in a battery specimen including a positive electrode, a negative electrode, and a solid electrolyte layer; and a cut surface inspection device for inspecting the cut surface of the battery specimen, wherein the cut surface inspection device includes a first elastic member loading part for positioning a first elastic member on opposite surfaces of the battery specimen, a first pressing part for pressing opposite surfaces of the battery specimen, and an optical inspection part for optically inspecting the cut surface, and the first elastic member loading part aligns the first elastic member so that a side surface of the first elastic member protrudes further than the cut surface of the battery specimen.
Resumen de: WO2025135315A1
An all-solid secondary battery according to an embodiment comprises: an all-solid cell comprising a positive electrode, a negative electrode, and a solid electrolyte layer; support plates supporting the respective surfaces of the all-solid cell; and uniform pressure applying members positioned between the all-solid cell and the support plates and applying uniform pressure to the all-solid cell, wherein the uniform pressure applying members comprise: piezoelectric element layers facing the respective surfaces of the all-solid cell and generating a piezoelectric current due to uneven pressure resulting from the surface unevenness of the all-solid cell; and pressure compensation layers positioned on one surface of the piezoelectric element layers and compensating for the uneven pressure by using the piezoelectric current.
Resumen de: WO2025134203A1
Provided are an OCV measurement method and an OCV measurement device that enable highly accurate OCV measurement even when a secondary battery installed in a vehicle is in a low SOC state, thereby allowing the deterioration state of the secondary battery to be ascertained with high accuracy. The present invention comprises: a step (ST2) in which, when a secondary battery has been discharged and is in a low charge state, the secondary battery is charged for a set time until a polarization characteristic is eliminated; a step (ST6) in which it is determined whether the open circuit voltage (OCV) of the secondary battery can be measured; and a step (ST7) in which, when it has been determined that the OCV can be measured, the OCV of the secondary battery is measured.
Resumen de: WO2025135263A1
Provided are an X-ray imaging device and a control method thereof. The X-ray imaging device according to an embodiment of the present invention includes: a transfer unit for transferring an electrode material of a battery cell; an X-ray generator for irradiating the electrode material of the battery cell with X-rays; an X-ray detector for detecting X-rays irradiated from the X-ray generator and having passed through the electrode material so as to generate projection data; a processor for generating a tomographic image on the basis of a plurality of projection data generated through the X-ray detector; and an image analysis unit for detecting a defective part, which is generated in a notching process, present in the electrode material of the battery cell by using the tomographic image.
Resumen de: WO2025135706A1
The present invention relates to a method for analyzing the quality of lithium sulfide in a lithium-sulfur electrode, which is a method for analyzing residual lithium compounds in a lithium-sulfide active material, and comprises the steps of: preparing an electrode including a positive electrode active material; charging and discharging the electrode to obtain first data on voltage according to capacity (specific capacity); and obtaining data according to an area value calculated by integrating a value (dQ/dV) obtained by differentiating a battery capacity (Q) according to the voltage (V) by the voltage (V) from the first data, and analyzing the data.
Resumen de: WO2025135712A1
The present invention relates to a preparation method of lithium sulfide with lithium polysulfide, the method comprising the steps of: mixing a carbon-based material with a lithium sulfate aqueous solution, followed by thermal treatment; subjecting the thermally treated product to solvent extraction with a solvent including water (H2O); and obtaining lithium sulfide, wherein the step of subjecting the thermally treated product to solvent extraction comprises a step of adding S8 to the thermally treated product.
Resumen de: WO2025135702A1
A gap filler composition according to embodiments of the present invention comprises: a siloxane-based resin; a filler including thermally conductive inorganic particles, hollow particles, and graphite particles; and a catalyst. The crushing strength of the hollow particles is 1,000 psi or more. Provided is a gap filler composition using hollow particles and graphite particles and having a low specific gravity, high thermal conductivity, and improved viscosity stability. Provided is a battery pack using the gap filler composition.
Resumen de: WO2025135683A1
The present invention relates to a battery shredded material and a battery processing method. The battery shredded material for recovering valuable metals from a waste battery has a layered structure including a separator with at least one surface on which a cathode and an anode are stacked, wherein the amount of copper (Cu) in the anode includes 0.01 wt% to 2.5 wt% with respect to 100 wt% of the anode.
Resumen de: WO2025135703A1
The present invention relates to a shredded battery material and a battery disposal method, wherein the shredded battery material is a shredded battery material obtained by dispersing and disposing at least one unit shredded battery material, and has an R value of 190 to 260 in RGB of a captured two-dimensional image.
Resumen de: WO2025135707A1
The present invention relates to a method for recovering lithium, the method comprising the steps of: preparing a waste liquid containing lithium and having a pH of at least 8; injecting a Ca compound into the waste liquid to remove impurities; and recovering lithium in the waste liquid from which the impurities have been removed.
Resumen de: WO2025135208A1
The present invention relates to an anode active material for a lithium secondary battery and a manufacturing method thereof, the anode active material comprising a silicon-based substrate and a coating layer coated on the surface of the silicon-based substrate, wherein: the coating layer comprises a carbon layer and one or more nano-carbon beads; the carbon layer and the nano-carbon beads contain sulfur; and the content of the coating material in the coating layer may be 0.10-1.50 weight%.
Resumen de: WO2025135229A1
The present specification relates to a sealing apparatus and a sealing system, wherein the sealing apparatus fixes an object to be sealed such that a side surface of the object to be sealed on which multiple plates are stacked faces upward, moves from a position corresponding to one end side of the side surface to a position corresponding to the other end side by a predetermined distance, applies a sealing material while moving from the moved position to a position corresponding to one long side or the other long side of the side surface, and applies the sealing material to the side surface in a barcode-shaped pattern to perform side sealing.
Resumen de: WO2025135222A1
The present invention relates to a battery storage cabinet and a dry room in which the cabinet can be stored, and, more particularly, to a battery storage cabinet and a dry room in which the cabinet can be stored, the cabinet being capable of: individually storing a plurality of batteries after use such that, in the event of a fire, the fire can be extinguished in an individual battery and can be prevented from spreading; reducing the discharge of harmful gases; and preventing secondary damage due to an explosion by means of a double storage structure.
Resumen de: WO2025135049A1
Provided are: a non-aqueous electrolyte solution comprising a carbodiimide compound that is represented by formula (I) and a sulfonyl compound that is represented by a specific formula; and a non-aqueous electrolyte secondary battery. In formula (I), each R11 independently represents a C1-12 hydrocarbon group or a C3-18 trialkylsilyl group.
Resumen de: WO2025135068A1
Provided is a battery system operation device that makes it possible to propose an appropriate system expansion period for a secondary battery system. For this purpose, a battery system operation device (100) is provided with: a battery deterioration calculation unit (102) that calculates a first transition prediction, which is a prediction of a future transition in the deterioration degree of a first battery group, and a second transition prediction, which is a prediction of a future transition in the deterioration degree of a second battery group having a different deterioration degree than the first battery group; a battery deterioration degree comparison unit (103) that, on the basis of the first and second transition predictions, calculates an equivalence condition satisfaction period, which is a period which the first and second battery groups will satisfy a prescribed equivalence condition; and a system expansion period calculation unit (105) that, on the basis of the equivalence condition satisfaction period, determines or proposes a system expansion period, which is a period in which a secondary battery is to be added to the battery system.
Resumen de: WO2025135730A1
The present invention relates to a cathode active material for a lithium secondary battery, the cathode active material comprising a nickel-containing lithium metal oxide in the form of a single particle, wherein the lithium metal oxide includes Zr and Ti as doping elements, and the ratio (I(003)/I(104)) of the peak intensity of the (003) plane to the peak intensity of the (104) plane in an X-ray diffraction pattern analysis of the lithium metal oxide is 1.53 to 1.7.
Resumen de: WO2025135699A1
A gap filler composition according to embodiments of the present invention comprises a siloxane-based resin, a filler containing thermally conductive inorganic particles, hollow particles, and graphite particles, a catalyst, and an amino-silicone-based dispersant. Provided is a gap filler composition that possesses low specific gravity, high thermal conductivity, and enhanced viscosity stability by utilizing the hollow particles, graphite particles, and amino-silicon-based dispersant. A battery pack utilizing the gap filler composition is provided.
Resumen de: WO2025135731A1
An electrode assembly is provided. An electrode assembly, according to one aspect of the present specification, comprises: an electrode-separator assembly including two layers of separators, each having a rectangular shape, and a first electrode disposed between the two layers of separators in a rectangular shape extending in a direction corresponding to the two layers of separators; and a second electrode separated from the first electrode by means of the separators, wherein at least a portion of the edge region of the two layers of separators is thermally fused in a state in which the first electrode is disposed between the two layers of separators, the electrode-separator assembly in the thermally fused state is folded in a zigzag pattern along the longitudinal direction, and the second electrode is disposed between layers of the folded and stacked electrode-separator assembly.
Resumen de: WO2025135733A1
The present invention relates to a solid electrolyte comprising: a sulfide-based solid electrolyte particle; and a coating layer encompassing, in a thin-film form, the entire surface of the sulfide-based solid electrolyte particle, and containing fluoride, wherein the fluoride contains at least one from among Al, Zn, Si and Sn.
Resumen de: WO2025135729A1
The present invention relates to a cathode active material for a lithium secondary battery, the cathode active material comprising a first lithium transition metal oxide and a second lithium transition metal oxide, wherein the first lithium transition metal oxide and the second lithium transition metal oxide each independently have a molar ratio (Li/Me) of lithium to transition metal of greater than 1, an average particle diameter (D50) of the first lithium transition metal oxide is greater than an average particle diameter (D50) of the second lithium transition metal oxide, the first lithium transition metal oxide and the second lithium transition metal oxide are included in a weight ratio of 60:40 to 80:20 (first lithium transition metal oxide:second lithium transition metal oxide), and the first lithium transition metal oxide and the second lithium transition metal oxide each independently have a BET specific surface area of 1.0-3.5 m2/g.
Resumen de: WO2025135346A1
Disclosed is a battery control method comprising the steps of: acquiring at least one of a voltage value, a current value, and a temperature value of a battery cell from one or more sensors; calculating the state of charge of the battery cell on the basis of at least one of the voltage value, the current value, and the temperature value; estimating a negative electrode voltage value on the basis of at least one of the state of charge, the voltage value, the current value, and the temperature value of the battery cell; and determining a target output value of the battery cell on the basis of the estimated negative electrode voltage value and a reference output value of the battery cell.
Resumen de: WO2025135347A1
The present invention relates to a battery system and a battery pack diagnosis method by supplementing cell voltage and cell temperature data. The battery system comprises: a battery pack including a plurality of battery cells; a cell monitoring controller (CMC) for monitoring a plurality of first cell voltages and a plurality of first cell temperatures of the plurality of battery cells; and a battery management system (BMS) which determines a wireless communication status with the CMC, and diagnoses the battery pack on the basis of the plurality of first cell voltages and the plurality of first cell temperatures received from the CMC according to the wireless communication status with the CMC or diagnoses the battery pack by estimating a plurality of second cell voltages and a plurality of second cell temperatures of the plurality of battery cells.
Resumen de: WO2025135474A1
This battery management device comprises: a memory; and a processor operatively connected to the memory, wherein the processor is configured to: determine an operating range of a battery pack on the basis of battery state variables; calculate degradation rate values of the battery state variables on the basis of an energy degradation parameter; measure usable battery energy (UBE) that can be supplied by the battery pack, on the basis of a standard test pattern; and estimate a state of certified energy (SOCE) of the battery pack by comparing a value obtained by measuring the UBE with a reference value of the UBE.
Resumen de: WO2025135342A1
The present invention relates to an apparatus and method for estimating the internal resistance of a battery. The apparatus for estimating the internal resistance of a battery, according to an embodiment of the present invention, comprises: a storage unit that stores a plurality of pieces of battery charging information obtained during a plurality of constant current charging of a battery; and a control unit that reads a plurality of pieces of battery charging information having the same initial SOC as a target initial SOC from among the plurality of pieces of battery charging information, determines whether there is battery charging information corresponding to a constant current matching a target constant current from among the plurality of pieces of read battery charging information, and when a result of the determination is that there is no battery charging information according to the constant current matching the target constant current, estimates the internal resistance of the battery according to the target initial SOC and the target constant current charging by using two pieces of battery charging information corresponding to two constant currents adjacent to the target constant current.
Resumen de: WO2025135704A1
The present invention relates to a high-temperature reduction device for waste battery recycling, the device comprising: a charging unit for inputting raw materials; a heating unit for heating the raw materials inputted from the charging unit; a cooling unit for cooling a heat-treated product; a discharge unit for discharging a reactant cooled from the cooling unit; and a monitoring unit including a first measurement unit for measuring the level of the raw materials inputted by the charging unit for inputting the raw materials in a furnace and a second measurement unit for measuring the level of the raw materials inputted by the raw material charging unit in the heating unit.
Resumen de: WO2025135732A1
The present invention relates to a negative electrode comprising: a current collector; a negative electrode active material layer disposed on the current collector; and a solid electrolyte membrane precursor layer disposed on the negative electrode active material layer, wherein the negative electrode active material layer has two or more line-shaped pattern grooves formed in the longitudinal direction of the current collector, and the solid electrolyte membrane precursor layer is disposed so that the shape of the pattern grooves of the negative electrode active material layer is maintained.
Resumen de: WO2025135790A1
The present invention relates to a lithium secondary battery having high energy density and excellent lifespan characteristics. The lithium secondary battery according to the present invention comprises: a positive electrode including a single particle-type positive electrode active material having a D50 of 5.5μm-8μm; a negative electrode including a first negative electrode active material including a Si-C composite; and an electrolyte, wherein the irreversible capacity per unit area of the negative electrode is smaller than the irreversible capacity per unit area of the positive electrode.
Resumen de: WO2025135728A1
The present invention provides a positive electrode active material and a method for preparing same, the positive electrode active material comprising: lithium nickel-based oxide particles in the form of a single particle consisting of one single nodule or a pseudo-single particle which is a composite of 40 or fewer nodules; a coating layer formed on the surface of the nickel-based oxide particles, wherein in X-ray diffraction (XRD) analysis, the positive electrode active material shows an A value, defined by equation 1 below, of 1.2 to 3.7. Equation 1 A = {(peak area in the range of diffraction angle 2θ of 37.1° to 37.9°/ peak area in the range of diffraction angle 2θ of 36.0° to 37.1°)} × 100
Resumen de: WO2025135738A1
The present invention provides an electrolyte for a lithium-sulfur battery and a lithium-sulfur battery comprising same, wherein the electrolyte prevents degradation of an anode caused by polysulfide by repelling polysulfide around lithium ions, and exhibits excellent capacity retention and lifespan characteristics by suppressing accumulation of lithium sulfide on the surface of the anode. The electrolyte for a lithium-sulfur battery, according to an embodiment of the present invention, includes a lithium salt, a non-aqueous solvent, and an additive, wherein the additive includes a compound represented by chemical formula 1. In the formula, R1 and R1' are each independently an alkylene group having 1 to 10 carbon atoms, and R2, R2', R3, and R3' are each independently an alkyl group having 1 to 10 carbon atoms
Resumen de: WO2025135324A1
An embodiment of the present invention provides a silicon-graphene-carbon nanotube composite which includes an outer pitch coating layer and of which a cross section including the center includes: a graphene layer; a carbon nanotube layer disposed on the graphene layer and containing a plurality of carbon nanotubes; and a nano silicon particle layer disposed on the graphene layer and containing a plurality of nano silicon particles attached to the carbon nanotubes. A negative electrode active material obtained through the production of the silicon-graphene-carbon nanotube composite can be used to achieve an optimal charge/discharge capacity and initial efficiency in a lithium secondary battery and improve cycle characteristics.
Resumen de: WO2025135319A1
A manufacturing method for a positive electrode active material precursor according to the present invention comprises: a first step of producing nuclei of the precursor; and a second step of growing the nuclei produced in the first step, wherein, in the first and second steps, the flow rate with which a transition metal compound solution is added into a batch-type reactor is 15-55mLA/min, and the agitation speed in the reactor is 200-875rpm in the first step and 475rpm or lower in the second step.
Resumen de: WO2025135320A1
A manufacturing method for a positive electrode active material precursor using a batch reactor according to the present invention comprises the steps of: (S1) producing nuclei of the precursor; (S2) growing the nuclei produced in step S1; (S3) further growing the precursor particles grown in step S2; and (S4) further growing the precursor particles grown in step S3, wherein the agitation speed in the batch reactor is 200-900rpm in step S2, 800rpm or less in step S3, and 700rpm or less in step S4, and when the batch reactor is full, the reaction solution is allowed to overflow.
Resumen de: WO2025135323A1
According to an embodiment of the present disclosure, provided is a battery module comprising: a housing provided with an accommodation space; a cell assembly which is accommodated in the accommodation space and comprises a plurality of battery cells; a first cooling port which is arranged in the housing so that at least part thereof faces one side of the cell assembly, and through which a cooling fluid is supplied into the accommodation space; and a second cooling port which is arranged in the housing so that at least part thereof faces the other side of the cell assembly, and through which the cooling fluid supplied to the accommodation space is discharged to the outside of the housing, wherein the first cooling port and the second cooling port are arranged at different heights from each other.
Resumen de: WO2025135365A1
Disclosed are a composite positive electrode active material, a positive electrode comprising same, and an all-solid-state secondary battery, the composite positive electrode active material comprising a composite of Li2S, a lithium salt, and a carbon-based material, wherein the Li2S crystallite size obtained from an XRD spectrum of the composite is 9.5 nm or smaller, and the composite comprises a solid solution of the Li2S and the lithium salt, and has a pellet density of 1.65 g/cm3 or greater.
Resumen de: WO2025135697A1
A gap filler composition according to embodiments of the present invention comprises a siloxane-based resin, a filler containing thermally conductive inorganic particles and graphite particles, a catalyst, and an amino-silicone-based dispersant. The content of the thermally conductive inorganic particles is 65-95 wt % relative to the total weight of the composition. The content of the graphite particles is 1-20 wt% relative to the total weight of the composition. Provided is a gap filler composition that, by utilizing the amino-silicon-based dispersant and the graphite particles, maintains low specific gravity and possesses enhanced thermal conductivity and viscosity stability A battery pack utilizing the gap filler composition is provided.
Resumen de: WO2025135682A1
The present invention relates to a unit battery shredded material, a battery shredded material including same, and a battery processing method. The unit battery shredded material is for recovering valuable metal from a waste battery, wherein the unit battery shredded material has a layered structure including a separation film in which a cathode or an anode is stacked on at least one surface thereof, and satisfies conditions 1 to 3 in the present specification.
Resumen de: WO2025135672A1
The present invention relates to a lithium-containing aqueous sulfuric acid solution and a method for preparing same. This method for preparing the aqueous sulfuric acid solution comprises the steps of: obtaining a valuable metal recovery composition from waste batteries, the valuable metal recovery composition containing valuable metal alloys, lithium compounds, copper (Cu), and graphite; separating graphite from the valuable metal recovery composition; performing sulfuric acid leaching of valuable metals, lithium compounds, and copper (Cu) in the valuable metal recovery composition; recovering the valuable metals and the copper (Cu) through solid-liquid separation in a leached lithium-containing aqueous sulfuric acid solution; and removing residual impurities from the leached lithium-containing aqueous sulfuric acid solution after the recovery step.
Resumen de: WO2025135773A1
The present invention relates to a cathode active material for all-solid battery in a secondary particle form formed by aggregating a plurality of primary particles, wherein the secondary particles have an average particle diameter (D50) of 2-7 μm, and the cathode active material has a particle surface aspect resistance (PSAR) of 5-9 kΩ·μm2.
Resumen de: WO2025135775A1
The present invention relates to a cathode active material for an all-solid battery, the cathode active material being in the form of secondary particles formed by aggregating a plurality of primary particles, wherein the secondary particles have an average particle diameter (D50) of 2-7 μm, and the cathode active material has an average active area of 50-110 μm2.
Resumen de: WO2025135321A1
The present invention relates to a sealing tape for all-solid-state rechargeable batteries and an all-solid-state rechargeable battery including same, the sealing tape including a substrate and an adhesive layer located on one surface of the substrate, and having a creep value of at least 500 µm at 45°C and a shear strength of at least 0.98 kgf/cm2 at 45°C.
Resumen de: WO2025134770A1
An all-solid-state battery 1 comprises: a battery molded body 20 including a positive electrode 201, a negative electrode 202, and a solid electrolyte layer 203; a bottomed cylindrical battery can 10 accommodating a cell assembly 21 that includes a positive electrode power supply plate 30 connected to the positive electrode 201 of the battery molded body 20 and a negative electrode power supply plate 40 connected to the negative electrode 202 of the battery molded body 20; and a can lid part 50 sealing an opening at one end of the battery can 10. The can lid part 50 has a conductive electrode terminal 52 and an insulation part 53 provided around the electrode terminal 52. The battery molded body 20 and the insulation part 53 are arranged along an axis X1 direction intersecting a bottom surface 101 of the battery can 10. A compression direction of the battery molded body 20 and the insulation part 53 is toward the bottom surface 101 of the battery can 10 along the axis X1 direction.
Resumen de: WO2025134714A1
Provided is a non-aqueous electrolyte secondary battery comprising an electrode body in which a belt-form positive electrode (11) and a belt-form negative electrode (12) are wound with a separator interposed therebetween, wherein the non-aqueous electrolyte secondary battery is characterized in that: the surface of the positive electrode (11) is provided with a positive electrode current collector exposed portion (34) where a positive electrode current collector is exposed; the positive electrode current collector exposed portion (34) is covered by a protective tape (50); the protective tape (50) has a facing region (51) that faces the negative electrode (12), and a non-facing region (52) that does not face the negative electrode (12); and the non-facing region (52) is provided with at least one or more notches (53) that extend from an upper end (50A) of the protective tape (50) toward a lower-end (50B) side of the protective tape (50).
Resumen de: WO2025134768A1
This power supply device is provided with: a plurality of secondary battery cells each having a cell end surface; one or more battery blocks accommodating the plurality of secondary battery cells; a battery cooling section thermally coupled to the battery blocks; and an exterior case accommodating the battery blocks and the battery cooling section. The battery cooling section internally defines a cooling air path through which cooling air flows, provides communication between the cooling air path and the outside through the exterior case, and is provided with a battery waterproof section for waterproofing the gap between the battery blocks and the exterior case. Thus, the battery blocks can be waterproofed while securing the cooling air path from the outside of the exterior case using the battery cooling section, and simplification of waterproof structure can be achieved while air-cooling the secondary battery cells.
Resumen de: WO2025135779A1
The present disclosure relates to an electrode assembly and a battery cell including same. The electrode assembly according to an embodiment of the present disclosure may comprise an electrode and a separator which are wound in a roll shape, the electrode including: a current collector; an active material layer formed on the current collector; and a non-coated part on which the active material layer is not formed, the separator being disposed on the electrode, wherein the non-coated part includes a plurality of flags formed at a predetermined interval from each other, the plurality of flags are bent in the direction of the central axis around which the electrode is wound, so as to form a bent part, the flags arranged in the same winding turn do not overlap each other when bent, and the interval (Dm) between the flags arranged in the same winding turn satisfies a specific condition.
Resumen de: WO2025135772A1
The present invention relates to a cathode active material for a lithium secondary battery, the cathode active material comprising a lithium metal oxide having a composition with excess lithium and manganese, wherein the lithium metal oxide has a structure in which lithium layers and transition metal layers are alternately layered, the average interval between the lithium layers is 2.13 angstrom or more, and, in lithium metal oxide, the the molar ratio of cobalt to metals that exclude lithium is 0.05 or less.
Resumen de: WO2025135760A1
The present invention relates to a sulfide-based solid electrolyte which contains lithium (Li), phosphorus (P), sulfur (S) and a halogen element (D) and comprises a compound with an argyrodite-based crystal structure, wherein at least a part of the crystal structure is doped with indium (In) and tin (Sn), and ion conductivity at 30°C is at least 3.21 mS/cm.
Resumen de: WO2025135758A1
The present invention relates to a solid electrolyte comprising: sulfide-based solid electrolyte particles; and a plurality of La-containing fine particles disposed on the surface of the sulfide-based solid electrolyte particles.
Resumen de: WO2025135677A1
The present invention relates to a battery shred and a method for disposing a battery. The battery shred of the present invention is for recovering valuable metals from a waste battery, and comprises: a positive electrode; a negative electrode disposed on the positive electrode; and a separator disposed between the positive electrode and the negative electrode. The negative electrode contains fluorine (F) having a content of 5.0-15.0 wt% based on 100 wt% of the total negative electrode.
Resumen de: WO2025135756A1
The present invention provides a lithium secondary battery comprising: a positive electrode; a negative electrode; and an electrolyte, wherein the positive electrode includes a positive electrode active material layer, the positive electrode active material layer includes a positive electrode active material, the positive electrode active material includes a lithium metal oxide including excess lithium and represented by chemical formula 1, the negative electrode includes a negative electrode active material layer, and the negative electrode active material layer includes a silicon-based negative electrode active material.
Resumen de: WO2025134636A1
In this power supply device, a plurality of core packs incorporating a plurality of battery cells are stored in the insertion position of an outer case with the ability to be pulled out easily. In the core pack, a cooling end surface of the battery cell is arranged in a thermal coupling state on a first surface of a core pack case, and an electrode end surface is arranged on a second surface of the core pack case. A first cooling duct and a second cooling duct for cooling the core pack are provided inside the outer case. The first cooling duct cools the battery cell via the first surface of the core pack case. A latch mechanism for latching the core pack to the insertion position of the outer case is partially arranged as a turbulent flow part of cooling air in the second cooling duct, and a cooling mechanism blows cooling air to the first cooling duct and the second cooling duct to cool the battery cell.
Resumen de: WO2025134658A1
A battery management system (5) for managing a battery pack (10) comprises: a plurality of monitoring circuits (100) for monitoring the battery pack (10); and a management circuit (200) that is connected to each of the plurality of monitoring circuits (100) by wireless communication and manages the battery pack (10). At least one of the plurality of monitoring circuits (100) and/or the management circuit (200) has a measurement circuit (215) for measuring time of flight (TOF) between the monitoring circuit (100) and the management circuit (200) by impulse response ultra wide band (IR-UWB) communication.
Resumen de: WO2025134690A1
This non-aqueous electrolyte secondary battery (10) comprises an electrode body, a non-aqueous electrolyte, a cylindrical outer can (20) with a bottom that accommodates the electrode body and the non-aqueous electrolyte, a sealing body (30) closing an opening (24) of the outer can (20), an annular gasket (34) disposed between the outer can (20) and the sealing body (30), and a protective member (40) disposed between the outer can (20) and the gasket (34), and is characterized in that: the outer can (20) has a crimping portion (26) that extends radially inward and fixes the sealing body by crimping; and the protective member (40) has an exposed portion (41) disposed radially inward of a radial inner end (26A) of the crimping portion (26).
Resumen de: WO2025134662A1
A battery management system (5) for managing a battery pack (10) comprises: a monitoring circuit (100) which monitors the battery pack (10); and a management circuit (200) which is connected to the monitoring circuit (100) by wireless communication and manages the battery pack (10). Each of the monitoring circuit (100) and the management circuit (200) has a plurality of wireless communication units that use mutually different modulation schemes for wireless communication. The mutually different modulation schemes for wireless communication include a UWB (Ultra Wide Band) scheme.
Resumen de: WO2025134616A1
This conductive polymer compound contains, as a repeating unit, a pyrrole having a substituent at the 3-position, wherein the substituent is one kind selected from among a halogenated alkyl group, a formyl group, and a formamide group, and the halogenated alkyl group is CnH2n+1-mXm. Here, n is an integer of 1 or more, m is an integer satisfying 1≤m≤2n+1, and X is a fluorine element, a chlorine atom, a bromine element, or an iodine element.
Resumen de: WO2025135678A1
The present invention relates to a valuable metal recovery alloy, a valuable metal recovery composition, and a method for recovering valuable metal. The valuable metal recovery alloy comprises 45 wt% or more of a valuable metal and the balance of impurities, on the basis of 100 wt% of the total composition of the alloy, and satisfies equation 1 below:
Resumen de: WO2025135675A1
The present invention relates to a method of disposing a battery and, more specifically, to a method of disposing a battery comprising a method for discharging a waste battery containing lithium, the method of disposing a battery comprising the steps of: preparing a battery; and water-discharging the battery in an aqueous solution containing a sulfuric acid-based ionic material, wherein the sulfuric acid-based ionic material is a by-product generated in a waste battery recycling process.
Resumen de: WO2025135676A1
The present invention relates to a method of disposing a battery and to a method of disposing a waste battery, comprising the steps of: preparing a battery; measuring the voltage of the battery; processing the battery at a low temperature equal to or lower than a minimum temperature according to the voltage of the battery; and shredding the battery, wherein the minimum temperature satisfies equation 1.
Resumen de: WO2025135759A1
The present invention relates to a sulfide-based solid electrolyte comprising a compound containing lithium (Li), phosphorus (P), sulfur (S), and a halogen element (D) and having an argyrodite-based crystal structure, wherein at least a part of the crystal structure is doped with oxygen (O) and a transition metal element (M) composed of Nb, Ta, V, or a combination thereof.
Resumen de: WO2025135757A1
The present invention relates to a cathode active material for a lithium secondary battery, comprising: lithium metal oxide particles having a nickel (Ni)-containing layered crystal structure; and a coating layer surrounding the entire surface of the lithium metal oxide particles and containing an aluminum (Al) compound, wherein the aluminum compound includes LiAlO2 and Al2O3, and the content of LiAlO2 is 10-36 wt% based on the total weight of LiAlO2 and Al2O3.
Resumen de: WO2025135755A1
The present invention relates to a cathode active material for a lithium secondary battery, the cathode active material comprising: lithium metal oxide particles having a nickel (Ni)-containing layered crystal structure; and a coating layer surrounding the entire surface of the lithium metal oxide particles and containing an aluminum (Al) compound, wherein the aluminum compound includes LiAlO2 and AlPO4, and the content of LiAlO2 is 13-31 wt% on the basis of the total weight of LiAlO2 and AlPO4.
Resumen de: WO2025134606A1
Problem To suppress energy consumption. Solution A control unit 11 executes battery temperature control such that temperature of a battery falls within an optimum range, which is set as a first temperature range, in a first time period after a vehicle starts traveling, and the temperature of the battery falls within an allowable range which is a second temperature range broader than the first temperature range in a second time period after the first time period until the vehicle arrives at a destination. Thus, by managing the temperature of the battery 12 so as to be within the allowable range when the vehicle arrives at the destination, unnecessary temperature control of the battery 12 in a range not affecting deterioration and performance of the temperature-controlled battery 12 is not performed, and accordingly energy consumption can be suppressed.
Resumen de: WO2025137250A1
Systems and methods to charge a battery using a switch modulator and a shaping circuit comprising at least one switching element. The shaping circuit may be configured to receive an input charge supply from a power supply and the switch modulator may be operably coupled with the at least one switching element. Further, the switch modulator may actuate the at least one switching element at a selected duty cycle such that the shaping circuit produces a shaped charge signal, the selected duty cycle configured to vary within a switch modulator sample period.
Resumen de: WO2025137023A1
A system for battery electrode fabrication is provided. The system includes an assembly configured to receive and disperse powder particles onto a substrate to define a first coating thickness of the powder particles on the substrate. The system includes a pair of calender rollers configured to receive the substrate in-between to create a pattern of compressed and uncompressed areas in the uniform coating. The compressed areas define a second coating thickness dimensioned smaller than the first coating thickness.
Resumen de: WO2025136732A1
The present disclosure is directed to systems and methods of producing lithiated inorganic particles. The lithiated inorganic particles can be produced by mixing a lithium precursor, a liquid medium, a carbon precursor, and inorganic particles to form a precursor suspension. The precursor suspension can be spray dried to form precursor particles and then these precursor particles can be heated to form a lithiated inorganic powder that includes inorganic particles having a coating of carbon and lithium silicate.
Resumen de: WO2025136736A1
Disclosed herein are embodiments of a slip composition. The slip composition includes particles of lithium lanthanum zirconium oxide (LLZO), a binder, a plasticizer, and a solvent. A ratio of the binder to the plasticizer is in a range from about 83:17 to about 87:13. The binder is configured to depolymerize and produce substantially no char when heated to a temperature in a range from 300°C to 600°C.
Resumen de: WO2025136733A1
The present disclosure is directed to systems and methods of producing disproportionated silicon oxide composite particles. The disproportionated silicon monooxide composite particles can be produced by mixing an alkali metal salt and/or an alkaline earth metal salt, a carbon precursor, a liquid medium, and silicon monooxide particles to form a precursor suspension. The precursor suspension can be heated to form a powder that includes disproportionated silicon monooxide particles having a coating comprising alkali metal and/or alkaline earth metal, wherein the disproportionation of the silicon monoxide is at least 30%.
Resumen de: WO2025135670A1
The negative electrode material for a lithium secondary battery of the present invention comprises a silicon-carbon composite including: silicon nanoparticles; crystalline carbon; carbon nanotubes; and first amorphous carbon, wherein the silicon nanoparticles, the crystalline carbon, and the carbon nanotubes are dispersed on the first amorphous carbon, and the minimum pore size inside the composite is more than 10 nm and 30 nm or less.
Resumen de: WO2025135752A1
The present invention relates to a cathode active material for a lithium secondary battery, the cathode active material comprising lithium metal oxide particles having a composition with excess lithium and manganese and doped with sodium, wherein the lithium metal oxide has a structure in which lithium layers and transition metal layers are alternately stacked, the sodium is more heavily doped into the lithium layers than into the transition metal layers, and the sodium is predominantly doped at the surface of the lithium metal oxide particles.
Resumen de: WO2025135674A1
The present invention relates to a battery processing method, and the method comprises the steps of: preparing waste batteries; measuring an average charging and discharging time of the waste batteries; measuring an average charging and discharging time of module-unit waste batteries among the waste batteries, and comparing the measured value with the average charging and discharging time of the waste batteries; and depending on whether an average charging and discharging time of pack-unit waste batteries and a charging and discharging time of a module-unit waste battery satisfy equation 1 according to the present specification, determining whether a corresponding module is normal.
Resumen de: WO2025135754A1
The present invention relates to a cathode active material for a lithium secondary battery, comprising: lithium metal oxide particles with a nickel (Ni)-containing layered crystal structure; and a coating layer that encompasses the entire surface of the lithium metal oxide particle and contains an aluminum (Al) compound, wherein, in the lithium metal oxide, the ratio (I(003)/I(104)) of the peak intensity of the (003) plane to the peak intensity of the (104) plane during X-ray diffraction pattern analysis is 1.52 or more.
Resumen de: WO2025135434A1
The present invention relates to a battery device water injection system and, more specifically, to a battery device water injection system that enables efficient fire suppression by: forcibly discharging gas generated from a battery module to the outside when the temperature of the battery module rises, so as to enable rapid fire detection before the occurrence of thermal runaway; and injecting fire-extinguishing water through a water injection port in a module housing that accommodates the battery module, and simultaneously discharging fire-extinguishing water through a discharge port at the upper end of the module housing, so as to keep supplying fresh fire-extinguishing water while maintaining the battery module in a fully submerged state without the need for additional equipment or control.
Resumen de: WO2025136037A1
The present invention relates to a binder resin for a sulfide-based all-solid-state secondary battery, and an electrolyte layer, a composite negative electrode layer, and a secondary battery comprising same. More specifically, the binder resin according to the present invention can reinforce the bonding between an electrode current collector and an electrode active material, and can enhance adhesion through chemical and physical interactions with the electrode active material to mitigate the thermal expansion of an electrode and the deformation during the lifetime of the electrode, leading to an improvement in the stability of the electrode during charge-discharge cycles of the battery.
Resumen de: WO2025136034A1
The present invention relates to a modular battery fire prevention system and method and, more specifically, to a modular battery fire prevention system and method for detecting signs of thermal runaway in battery cells to rapidly lower high temperatures and prevent fires. The modular battery fire prevention system according to the present invention comprises: a plurality of temperature detection units for respectively detecting the temperatures of a plurality of battery cells in a plurality of battery packs in real time; a plurality of nozzles which are connected to a tank storing a cooling material and in which nozzle tips are installed on the upper side or lower side of each of the plurality of battery packs and spray the upper side or lower side of each of the plurality of battery packs with the cooling material supplied from the tank; a plurality of nozzle valves for opening and closing the plurality of nozzles, respectively; and a monitoring module that compares the temperature information collected from the plurality of temperature detection units to a set reference temperature in real time, and, when the temperature of at least one of the plurality of battery cells is higher than the reference temperature, transmits a charge and discharge power supply interruption signal for the battery configuration including the relevant battery cell to a battery charge/discharge control system, and simultaneously transmits a valve opening signal to the nozzle valve corresponding to
Resumen de: WO2025136027A1
Provided is a lithium battery comprising: a positive electrode; a negative electrode current collector; and an electrolyte layer disposed between the positive electrode and the negative electrode current collector, wherein the electrolyte layer comprises a gel polymer electrolyte, the gel polymer electrolyte comprises a first polymer, a first lithium salt, a second lithium salt, a first organic solvent, and a second organic solvent, the first polymer comprises a repeating unit derived from a first cross-linking monomer including three or more reactive functional groups, and the first lithium salt and the second lithium salt each independently include a borate-based lithium salt.
Resumen de: WO2025136075A1
The present application relates to an anode comprising an anode active material layer that includes a silicon-based active material, wherein, when the cohesion strength is measured at respective positions of 25%, 50% and 75% of the total thickness from a first surface of the anode active material layer on the basis of the total thickness T, which is the distance between the first surface and a second surface that face each other, the average of the measured cohesion strengths is 1 Mpa to 20 Mpa, the deviation of the measured cohesion strengths is 140% or less, and the vertical resistance is 0.005 Ω to 0.3 Ω.
Resumen de: WO2025135424A1
The present invention relates to a composition for recovering lithium compounds and a battery treatment method. The battery treatment method of the present invention comprises the steps of: preparing a battery containing lithium (Li) and aluminum (Al); shredding the battery into battery shreds; and performing high-temperature heat treatment on the battery shreds, wherein the high-temperature heat treatment step includes a step of performing heat treatment at a temperature of 600-1,500°C and, in the step of preparing the battery, lithium and aluminum in the battery satisfy relation 1.
Resumen de: WO2025135425A1
According to the present invention, recovered materials from waste batteries include 20-35 wt% of a valuable metal recovery alloy and 25-50 wt% of a lithium compound on the basis of 100 wt% of the recovered materials, with the remainder comprising graphite-based materials.
Resumen de: WO2025135420A1
A data processing apparatus for analyzing a battery manufacturing process, according to one embodiment of the present invention, may comprise at least one processor and a memory that stores at least one instruction to be executed through the at least one processor. Herein, the at least one instruction can include instructions for: collecting process data for each process factor for a plurality of batteries; using the process data for each process factor so as to construct a machine learning-based performance prediction model for predicting battery performance; generating analysis information that indicates the effect of at least one of process factors on a performance prediction value of the performance prediction model; and outputting the generated analysis information through a predefined graphical user interface (GUI).
Resumen de: WO2025135416A1
A battery management device according to an embodiment of the present invention is located in a battery system including a plurality of batteries, and may include: at least one processor; and a memory that stores at least one command executed through the at least one processor. Here, the at least one command may include: a command for collecting state information including charging state values of the batteries; a command for identifying whether the charging state value of at least one of the batteries belongs to a predefined low charging state section or a predefined high charging state section; a command for determining whether a balancing start condition defined to correspond to a current charging state section is satisfied, based on the state information of the batteries; and a command for determining whether to start a balancing mode for balancing the batteries, according to a result of the condition satisfaction determination.
Resumen de: US2025207908A1
An object thickness measuring apparatus of the present disclosure includes: a transfer unit configured to transfer a pouch-type rechargeable battery including a sealing portion; a first scan unit configured to scan an opaque layer excluding an outermost transparent layer in the sealing portion; a second scan unit configured to scan the transparent layer in the sealing portion; and a controller configured to calculate a thickness of the sealing portion from three-dimensional data generated by collecting image data measured by the first scan unit and image data measured by the second scan unit.
Resumen de: US2025207705A1
A compressor assembly for a portable oxygen concentrator includes a first compressor chamber having a first connector, a second compressor chamber having a second connector, and a tube having a first end having a first connection interface configured to connect to the first connector and a second end having a second connection interface configured to connect to the second connector. The first connection interface is shaped to maintain the connection between the first connector and the first connection interface in a fixed orientation and the second connection interface is shaped to maintain the connection between the second connector and the second connection interface in a fixed orientation. One or more of the first connector, the second connector, and the tube are compliant.
Resumen de: US2025207217A1
A method for recovering active metals of a lithium secondary battery may supply a cathode active material mixture to a fluidized bed reactor including a reactor body. A reaction gas may be introduced from a lower portion of the fluidized bed reactor to form a fluidized bed including a preliminary precursor mixture within the reactor body. The fluidized bed portion that has entered the upper portion of the fluidized bed reactor may be cooled to descend it into the reactor body, and then a lithium precursor may be recovered from the preliminary precursor mixture. Accordingly, a terminal velocity of the preliminary precursor is reduced, such that even if the particle size of the preliminary precursor is fine, loss due to scattering may be prevented.
Resumen de: US2025207034A1
Petroleum pitch has a quinoline-insoluble fraction of 0.5 mass % or less, toluene-insoluble fraction of 3.0 mass % or less, softening point of 60° C. to 120° C., and viscosity at 200° C. of 200 mPa·s or less, the fixed carbon content Y (mass %) of which satisfies formula (1). A method for producing petroleum pitch includes: heat-treating petroleum heavy oil (step 1); distilling the heat-treated product obtained in step 1 and obtaining pitch 1 as a high-boiling-point component (step 2); removing the toluene-insoluble fraction from pitch 1 obtained in step 2 and obtaining a component in which the toluene-insoluble fraction has been decreased (step 3), and distilling the component in which the toluene-insoluble fraction obtained in step 3 has been decreased and obtaining pitch 2 as a high-boiling-point component (step 4). 80.0≥Y>0.2X+29.5 (1) Y: fixed carbon content (mass %), X: softening point (° C.) (60≤X≤120)
Resumen de: US2025208013A1
An apparatus for automatically testing the degree of secession of an electrode active material according includes a tape providing member, a tape adhesive member, and a testing the unit. The tape providing member provides a tape and the tape adhesive member presses the tape so that the tape adheres to the electrode The testing unit tests the degree of peeling of the active material of the electrode when the electrode and the tape are pressed by the tape adhesive member and then separated from each other, thereby causing peeling of the active material of the electrode.
Resumen de: US2025210787A1
An energy storage arrangement comprising a sleeve arranged in a first and a second through hole, the sleeve being arranged through a first end surface of a first set of energy storage modules and through a first end surface of a second set of energy storage modules and is connected to a first and a second rod.
Resumen de: US2025210668A1
A lithium secondary battery includes a cathode including a cathode active material, the cathode active material including a lithium metal oxide that has a form of a secondary particle in which a plurality of primary particles are aggregated and is doped with a doping element, and an anode facing the cathode and including an anode active material, the anode active material including a composite active material of a silicon-containing material and a first carbon-based material, and a second carbon-based active material. An aspect ratio of the primary particles is in a range from 1.4 to 7.0, and a content of the composite active material based on a total weight of the anode active material is in a range from 1 wt % to 50 wt %.
Resumen de: US2025210692A1
Described herein is an inorganic glass composite solid electrolyte, comprising one or more solid electrolytes with the chemical formula: MxAlEyGzJm, wherein M denotes Li or Na, E denotes one or more elements selected from the group consisting of boron (B), phosphorus (P), silicon (Si), lanthanum (La), or cerium (Ce), G denotes at least one chalcogen element, Jdenotes at least one halide element, and the following mathematical formula is satisfied: 0
Resumen de: US2025210662A1
In an embodiment, a monitoring system may monitor a selected number of battery packs residing within a battery energy storage system. The monitoring system may include a plurality of battery pack monitoring devices each configured to monitor a battery pack. In an embodiment, the battery pack monitoring device may include a battery pack monitoring controller having a memory and a processor. The battery pack monitoring device may also include a voltage sensor, an ambient temperature sensor, an electric current sensor, a cell voltage sensor, and a cell temperature sensor, each coupled to the processor of the battery pack monitoring controller. The measured voltages, temperatures, and electric current may be stored in the memory of the battery pack monitoring controller.
Resumen de: US2025210792A1
A high-voltage control box includes a control box body, a terminal resistor, and a wiring assembly. A CAN bus and a battery management unit are provided inside the control box body. The CAN bus includes a high wire and a low wire, which are connected to the battery management unit. The terminal resistor is provided inside the control box body. The wiring assembly is installed on a wall of the control box body, and is connected to the high wire, the low wire and the terminal resistor. The terminal resistor is disconnected from the high wire and/or the low wire, and the wiring assembly is configured to be connected with an external electrical connector to enable the terminal resistor to be electrically connected with the high wire and the low wire through the wiring assembly and the external electrical connector.
Resumen de: US2025210664A1
Powderous rubbers with lithium salts as antidusting agents and methods of using the powderous rubbers as a binder in battery applications are disclosed.
Resumen de: WO2025130248A1
A positive electrode material and a preparation method therefor, a positive electrode, a secondary battery, and an electric device. The positive electrode material comprises a core and a shell layer covering the core, wherein the core comprises (LiaAd)1+x(M1-bEb)1-x(O1-cL2c)2, 0
Resumen de: WO2025130263A1
An electrode sheet and a battery. The electrode sheet comprises a current collector and an electrode film arranged on at least one functional surface of the current collector, wherein the electrode film comprises fibers, and at least some of the fibers extend in a first direction of the electrode sheet. By defining the composition and structure of the electrode sheet, the breaking strength and adhesion of the electrode sheet can be significantly improved, thereby increasing the tensile strength of the electrode sheet and reducing the risk of breakage; and by applying the electrode sheet to a battery, the cycle performance and thickness expansion rate of the battery can be significantly improved.
Resumen de: WO2025130273A1
Disclosed in the present application is a battery. The battery comprises: a case and a battery cell. An accommodating cavity is provided in the case, and the case has a first side wall. The battery cell is arranged in the accommodating cavity, and the battery cell comprises a tab assembly. The tab assembly is welded to the first side wall by means of at least two linear weld seams. The at least two linear weld seams are sequentially arranged in a first direction, the ends of the linear weld seams that are close to the first side wall run into the first side wall, and in the wall thickness direction of the first side wall, the ends of adjacent linear weld seams running into the first side wall are staggered. The battery of the present application solves the problems in the prior art of welding between a tab and a case in a battery not being firm enough, and the internal resistance at a connecting position being large.
Resumen de: WO2025130455A1
Provided are a lithium titanate button secondary battery and an electronic price tag. The secondary battery is a button battery formed by stacking and connecting a lithium titanate composite electrode, a battery positive electrode, a separator, an electrolyte, a negative electrode casing, a positive electrode casing, a positive electrode current collector, a sealing gasket and the like. The lithium titanate composite electrode is formed by compressing a lithium titanate composite electrode material with a special structure by means of a tabletting process.
Resumen de: WO2025129749A1
A negative electrode sheet, a battery, a preparation method, and a use, relating to the technical field of lithium-ion batteries. The structure of the negative electrode sheet comprises: a current collector; and an active material layer which is arranged on the surface of the current collector. The number of the active material layers is greater than or equal to 1, and pore slots are formed in the surface of at least one active material layer; the depth H of each pore slot and the thickness T of the active material layer satisfy the following relationship: 1/3T
Resumen de: WO2025130046A1
A busbar and a battery. The busbar comprises: a busbar body (10); a conductive portion (20) connected to the busbar body (10), the conductive portion (20) comprising a first surface (20a) and a second surface (20b) facing away from the first surface (20a); and an insulating layer (30), wherein the insulating layer (30) covers at least part of the first surface (20a) and at least part of the second surface (20b).
Resumen de: WO2025130034A1
A battery box body, comprising a battery pallet frame (1); a box body main body (2), wherein the box body main body (2) is provided with a box body outer frame body (21) and a box body supporting beam (22), a battery compartment (23) is arranged in the box body outer frame body (21), the box body outer frame body (21) and/or the box body supporting beam (22) is provided with an anti-falling sliding slot (24), and the box body supporting beam (22) is fixedly connected to the box body outer frame body (21); a sliding piece disassembling and assembling member (3), wherein the sliding piece disassembling and assembling member (3) is arranged in the anti-falling sliding slot (24) in a sliding mode, and an anti-falling buckle part (31) of the sliding piece disassembling and assembling member (3) can restrain and fix the battery pallet frame (1) on the box body outer frame body (21) and the box body supporting beam (22).
Resumen de: WO2025129725A1
A thermal management system, comprising: a driving electric motor thermal management circuit, a traction battery thermal management circuit, and a first multi-way valve (10), wherein the driving electric motor thermal management circuit comprises at least a driving electric motor (20); the traction battery thermal management circuit comprises at least a traction battery (30); and the first multi-way valve (10) is arranged between the driving electric motor thermal management circuit and the traction battery thermal management circuit. The driving electric motor thermal management circuit and the traction battery thermal management circuit are integrated, such that, when the traction battery (30) requires heating, heat from the driving electric motor thermal management circuit can be used to assist in heating the traction battery (30), enabling the power requirements for the selection of an electric heating module to be appropriately reduced, thereby reducing the cost of a vehicle; moreover, energy consumption during electric heating can be reduced, while also recovering thermal energy from the driving electric motor thermal management circuit, thereby improving the energy utilization efficiency of the vehicle. Further provided are an operating method for the thermal management system and a vehicle provided with the thermal management system.
Resumen de: US2025210747A1
The disclosure relates to the technical field of batteries and specifically provides a battery pack and an electric vehicle. The battery pack includes a box body having a lower casing bottom plate, a cell stack formed by stacking a plurality of soft-pack cells, a thermally conductive structural adhesive arranged between the cell stack and the lower casing bottom plate, side plates arranged at both ends of the cell stack in a stacking direction and adhered to main body surfaces of the soft-pack cells at both ends, and fixture fitting portions arranged on surfaces of the side plates opposite to the soft-pack cells. In the solution, a soft-pack cell to pack (CTP) battery pack is constructed based on the soft-pack cells, the cell stack formed by stacking the soft-pack cells can be well protected, and assembly can be easily performed.
Resumen de: US2025210722A1
A jelly roll electrode assembly and a cylindrical lithium secondary battery includes a positive electrode, a negative electrode and at least one separator. The negative electrode has an end provided with a non-coated portion on opposite surfaces.
Resumen de: US2025210659A1
This invention relates generally to the field of energy storage, batteries, cathodes, and anodes. This invention also relates to anode materials and/or cathode materials and methods to make said materials.
Resumen de: US2025210666A1
An object is to provide a binder that hardly causes gelation even when mixed with a positive electrode active material containing nickel, and has sufficient adhesiveness in a small amount. The binder that solves the issue described above contains a vinylidene fluoride polymer, and the vinylidene fluoride polymer includes a structural unit derived from vinylidene fluoride and two or more kinds of structural units represented by a specific structural formula.
Resumen de: US2025210654A1
A negative electrode active material contains negative electrode active material particles, in which the negative electrode active material particles include silicon compound particles containing Li silicate, an intermediate layer coating a surface of the silicon compound particles, the intermediate layer containing a Li compound different from Li silicate, being adjacent to a portion of the surface of the silicon compound particles, and/or a metal oxide and/or a metal hydroxide, being adjacent to at least a portion of the surface of the silicon compound particles, and an outermost carbon layer coating the intermediate layer. The negative electrode active material can improve initial efficiency to increase battery capacity, and increase stability during the mass production of the slurry while realizing sufficient battery cycle characteristics.
Resumen de: US2025210657A1
A negative electrode active material includes artificial graphite particles; and a nitrogen element, an oxygen element, and a hydrogen element present on a surface, on an inside, or on the surface and the inside of the artificial graphite particle. The nitrogen element is included in an amount of about 80 mg to 180 mg per 1 kg of the negative electrode active material.
Resumen de: US2025210827A1
Embodiments of the present application provide a connector, a device, a battery, and a power consuming apparatus. The connector includes a male terminal and a female terminal, where the male terminal includes M first plug pins and N second plug pins, and the female terminal includes M first jacks and N second jacks, with M and N being positive integers; and when plugging of the male terminal and the female terminal is in place, the M first plug pins are respectively plugged into the M first jacks to form M first loops, and the N second plug pins are respectively plugged into the N second jacks to form N second loops, with a second conductive contact distance (L2) between each second plug pin and the corresponding second jack being smaller than a first conductive contact distance (L1) between each first plug pin and the corresponding first jack.
Resumen de: US2025211015A1
A charge control device is configured to control charging of a lithium ion battery, estimate an inflow current flowing into the lithium ion battery when a current flowing through a load stops, derive a protective charging current that is a maximum value of charging current not to cause the lithium ion battery to form lithium deposition, calculate a charging upper limit current based on the protective charging current and the inflow current, the charging upper limit current being an upper limit of current to charge the lithium ion battery, and control charging of the lithium ion battery based on a limit electric power calculated from the charging upper limit current and a voltage of the lithium ion battery.
Resumen de: US2025210797A1
A secondary battery is provided and includes a battery element; a housing member that houses the battery element; and a safety valve attached to the housing member, in which the safety valve includes at least a configuration in which a safety cover including a protrusion at a center, a disk holder including an opening at a center, a stripper disk including a cavity at a center, and a sub disk that joins to the protrusion extending through the opening of the disk holder and the cavity of the stripper disk are combined in this order from relatively on an outer side to an inner side of the housing member, and the stripper disk includes a recess on a surface located on the relatively inner side of the housing member, and the recess houses the sub disk.
Resumen de: US2025210835A1
Aspects of the present disclosure relate to a battery pack for accommodating battery modules, including a pack case including a module area having a battery module seated therein. The pack case includes a base plate having a hollow structure with a hollow interior, and a side wall coupled along an edge of the base plate, wherein the base plate has a high-pressure liquefied gas filled inside the hollow structure.
Resumen de: US2025211016A1
A portable power pack having a housing, a rechargeable lithium battery positioned in the housing, a liquid crystal display (LCD), a wireless charging coil, a light emitting diode (LED) flash light, a universal serial bus (USB) port, a direct current (DC) port, and a power management circuit. The LCD can be positioned on the housing and configured to display a status of the portable power pack. The wireless charging coil can be positioned in or on the housing and configured to wirelessly couple with an external wireless charging coil of an external device through electromagnetic induction in accordance with, for example, the Qi wireless power transfer standard. The USB port supplies a charging current to charge a portable electronic device, while the DC port supplies a starting current to jump start an engine of a vehicle that is electrically coupled with an external battery. The power management circuit operatively coupled to the wireless charging coil and the rechargeable lithium battery and configured to output the charging current or the starting current.
Resumen de: WO2025130294A1
A liquid-cooled energy storage apparatus. The liquid-cooled energy storage apparatus comprises a box body, a plurality of battery packs, and a cluster-level liquid supply pipe extending in the height direction of the box body, the plurality of battery packs being located in the box body and being stacked in the height direction of the box body. The cluster-level liquid supply pipe is provided with a plurality of liquid supply branch pipes arranged at intervals in the height direction. Any one of the liquid supply branch pipes is used to place the cluster-level liquid supply pipe in communication with a liquid inlet of a liquid cooling plate of one battery pack among the plurality of battery packs. In the height direction, the position at which the liquid inlet of the liquid cooling plate is located is higher than the position at which a junction between the liquid supply branch pipe and the cluster-level liquid supply pipe is located. In the solution, due to the fact that the position at which the liquid inlet of the liquid cooling plate is located is higher in the height direction than the position at which the junction between the liquid supply branch pipe and the cluster-level liquid supply pipe is located, when cooling liquid in the liquid-cooled energy storage apparatus is replaced, the cooling liquid of the liquid cooling plate in the battery pack can be discharged from the liquid inlet of the liquid cooling plate into the cluster-level liquid supply pipe by using the g
Resumen de: WO2025130275A1
A negative electrode material and a sodium ion battery. The negative electrode material comprises a carbon matrix having a three-dimensional porous structure, and a doping element loaded in the pores of the carbon matrix. A relational expression between the doping element content and the gas adsorption amount of the negative electrode material is as follows: 0<α/β×103≤1, α being the content of the doping element in the negative electrode material, in ppm, and β being the gas adsorption capacity of the negative electrode material, in cm3/g. By means of controlling the doping element content and the gas adsorption capacity of the negative electrode material, and regulating the pore structure of the negative electrode material, the negative electrode material can have a relatively high reversible specific capacity and initial coulombic efficiency.
Resumen de: WO2025130224A1
Disclosed in the present application is a battery pack. The battery pack comprises battery modules (1) and a CCS acquisition assembly (2), wherein the CCS acquisition assembly (2) comprises busbars (21), acquisition wire harnesses (22) and a first foam pad (23); the busbars (21) are configured to be connected to the battery modules (1); the acquisition wire harnesses (22) are connected to the busbars (21); the first foam pad (23) is arranged on the battery modules (1); the first foam pad (23) comprises a body portion (231) and a first connection portion (232); the body portion (231) is provided with a first communication port (233) corresponding to an explosion-proof valve of each cell; and the first connection portion (232) rotates to buffer and absorb an electrolyte sprayed by the explosion-proof valve.
Resumen de: WO2025129724A1
The present application discloses a battery cell, a lithium ion battery manufacturing method, and a lithium ion battery. The battery cell comprises a body and tab assemblies; each tab assembly comprises a dummy tab group, an outer tab, and a tab adhesive; the dummy tab group comprises at least one dummy tab connected to the body; the outer tab is conductively connected to the dummy tab group; in a projection in the thickness direction of the body, the outer tab and the dummy tab group partially overlap to form an overlapping portion, and the tab adhesive is wrapped around at least part of the overlapping portion; two tab assemblies are provided, and the two tab assemblies are staggered in the width direction of the body. The distance between the tab adhesives and the body is closer, the dummy tabs do not need to be folded, and a top sealing process step is directly performed at the positions of the tab adhesives after the battery cell is placed into a packaging housing, so that the space occupied by the tab assemblies between the body and the top sealing positions can be reduced, improving the energy density of the lithium ion battery, and the production steps of the lithium ion battery can be simplified, improving the production efficiency of the lithium ion battery.
Resumen de: WO2025129683A1
The present application provides a battery and an electric device. The battery comprises a case, battery cells and a protection plate. The case has an accommodating cavity. The case comprises a top wall, the top wall is located on the upper side of the accommodating cavity in the vertical direction, and a flow channel for a heat exchange medium to flow is formed in the top wall. The battery cells are accommodated in the accommodating cavity. The protection plate is provided on the side of the top wall distant from the battery cells and is connected to the top wall. The protection plate can protect the top wall from the upper side, so as to reduce the impact force on the top wall applied from the upper side, thereby reducing deformation of the top wall, improving the uniformity of heat exchange, reducing the risk of heat exchange medium leakage, and improving the reliability of the battery.
Resumen de: WO2025129997A1
A sealing member (100), a battery cap (2), and a battery. The sealing member (100) is configured to insulate and seal a gap between a cap (2) and a case (3) of a battery. The sealing member (100) comprises a body (1). The body (1) comprises a first sub-body (11) located between the case (3) and the cap (2). The melting point of at least part of the first sub-body (11) is greater than the temperature in the space defined by the case (3) when the battery is in the maximum discharge state.
Resumen de: WO2025129680A1
Embodiments of the present application provide a battery and an electric device. The battery comprises a frame body, a battery cell, a first beam, and a heat exchange plate. The frame body defines an accommodating space. A first opening is formed in one end of the accommodating space. The battery cell is arranged in the accommodating space. The first beam is arranged in the accommodating space, two ends of the first beam are connected to the frame body, and the first beam is used for limiting expansion of the battery cell. The heat exchange plate covers the first opening and is used for exchanging heat with the battery cell, and the heat exchange plate is fixedly connected to the frame body and the first beam. When the battery is subjected to an external impact, the frame body and the first beam can restrain the heat exchange plate, so as to reduce the relative movement between the heat exchange plate and the battery cell, and improve the uniformity of heat exchange. In addition, the first beam can disperse the stress at the joint of the heat exchange plate and the frame body, reduce the risk of failure of the connection between the heat exchange plate and the frame body, improve the sealing performance of the battery, and improve the reliability of the battery.
Resumen de: US2025210640A1
A method of producing a positive electrode active material, the method includes: contacting first particles that contain a lithium transition metal composite oxide with a solution containing sodium ions to obtain second particles containing the lithium transition metal composite oxide and sodium element, wherein the lithium transition metal composite oxide has a layered structure and a composition ratio of a number of moles of nickel to a total number of moles of metals other than lithium in a range of from 0.7 to less than 1; mixing the second particles and a boron compound to obtain a mixture; and heat-treating the mixture at a temperature in a range of from 100° C. to 450° C.
Resumen de: US2025210639A1
Provided is a composition for forming an active material composite that gives an active material composite that can be used for an electrode in a lithium ion secondary battery and the like and that can improve battery cycle and rate characteristics. A composition for forming an active material composite comprising at least one active material selected from a metal, a metalloid, a metal alloy, a metal oxide, a metalloid oxide, a metal phosphate, a metal sulfide, and a metal nitride, a conductive material, a dispersant, a solvent, and a crosslinking agent.
Resumen de: US2025210641A1
A process of preparing a pre-lithiated lithium manganese-based oxide product for use as a cathode active material in an energy storage device. The process includes mixing together a lithium manganese-based oxide having a spinel crystal structure. a lithium salt, and KOH to form a mixture. This mixture is exposed to a temperature within the range of 226° C. to 450° C. in the presence of a reducing agent to form the pre-lithiated lithium manganese-based oxide product. The reducing agent comprises NH3 and the amount of lithium salt and KOH present in the mixture are in a ratio that results in at least a portion of the lithium salt being in a liquid state at the selected temperature. The KOH is removed from the pre-lithiated lithium manganese-based oxide product and the resulting product collected. An energy storage device using the pre-lithiated lithium manganese-based oxide product as a cathode active material is also provided.
Resumen de: US2025210636A1
A lithium metal anode for a battery, including an anode active substrate including an anode current collector and a layer substantially consisting of lithium metal provided on a surface of the anode current collector, and a first lithium metal anode protective layer provided on the layer substantially consisting of lithium metal, wherein the first lithium metal anode protective layer includes lithium iodide (LiI) and lithium fluoride (LiF). Methods of producing such lithium metal anodes are also disclosed.
Resumen de: US2025210645A1
Disclosed is a positive electrode active material for a lithium primary battery, including: active material particles represented by a composition formula LixMnO2 where 0≤x≤0.05; and a zinc-containing oxide partially covering surfaces of the active material particles. The coverage of the active material particles by the zinc-containing oxide is in the range from 0.10% to 65%.
Resumen de: US2025210629A1
A composite cathode material, a preparation method thereof, and an application thereof are provided. The composite cathode material of the present application includes: a conductive core, and a cathode material coating layer covering the conductive core. The composite cathode material further includes a conductive skeleton. One end of the conductive skeleton is in contact with the conductive core, and an other end of the conductive skeleton at least extends into the cathode material coating layer. The composite cathode material of the present application has high conductivity, structural stability, and compaction density, and has high cycle performance and electrochemical performance. The preparation method of the composite cathode material can ensure that the structure and electrochemical performance of the prepared composite cathode material are stable, and the efficiency is high, thus saving production costs.
Resumen de: US2025210638A1
An all-solid secondary battery includes a cathode layer, an anode layer, and a solid electrolyte layer between the cathode layer and the anode layer, wherein the cathode layer includes a cathode current collector and a cathode active material layer on a side of the cathode current collector, and the anode layer includes an anode current collector and a first anode active material layer on a side of the anode current collector, wherein the first anode active material layer includes a first anode active material and a second anode active material, each of which is capable of forming an alloy or a compound with lithium, and a fibrous carbon-based material, and a ratio (B/A) of an initial charge capacity (B) of the first anode active material layer to an initial charge capacity (A) of the cathode active material layer is in a range of about 0.01 to about 0.75.
Resumen de: US2025210637A1
The invention relates to a silicon electrode suitable for use as an anode in a lithium ion battery, comprising a current collector, preferably made of copper, an adhesive layer arranged on the current collector, and a multi-layer structure arranged on the adhesive layer. The object of providing an Si electrode, which is not pulverised when lithium is incorporated and therefore does not lose the electrical contact with the current collector as a result, as well as having a stable surface and high intrinsic conductivity, is achieved in that the multi-layer structure, as an active layer of the Si electrode, is formed by at least one layer made of a metal and silicon or formed by a mixed system consisting of silicon mixed with at least one metal, wherein the multi-layer structure undergoes rapid tempering and forms a conductive metal silicide matrix, wherein the metal silicide matrix contains amorphous, nanocrystalline regions of the silicon.
Resumen de: US2025210634A1
A composite positive electrode active material including a positive electrode active material and a lithium-ion conducting oxide containing at least one element of elemental B and elemental P on at least a part of the surface of the positive electrode active material, wherein the composite positive electrode active material contains a solid electrolyte on at least a part of the surface of the lithium-ion conducting oxide, and wherein the interface length value A (μm−1) obtained by dividing the length (μm) of the interface between the positive electrode active material and the solid electrolyte confirmed from an SEM image of a cross section of the composite positive electrode active material by the area (μm2) of the positive electrode active material in the SEM image is 1.326 or more.
Resumen de: WO2025130561A1
Disclosed in the present invention are a double-sided coated para-aramid separator and a preparation method therefor. The double-sided coated para-aramid separator comprises: a base membrane and a coating coated on the base membrane, wherein the coating is obtained by coating a para-aramid slurry. The para-aramid slurry comprises: a gas-phase powder, a ceramic powder, a first solvent, a styrene-butadiene latex solution, nano calcium carbonate and a para-aramid polymerization solution, wherein prior to the use of the para-aramid polymerization solution, hydrogen chloride produced during the synthesis of para-aramid from para-phenylenediamine and terephthaloyl chloride is removed, and the gas-phase powder is one or a mixture of more of gas-phase aluminum oxide, gas-phase silicon dioxide and gas-phase barium titanate. In the present invention, the coating is subjected to pore forming by means of a solid space-occupying method, thereby increasing the porosity of the coating, such that the para-aramid separator has a larger porosity and a smaller air permeability value.
Resumen de: WO2025130267A1
A battery pack, comprising a case (1), mounting bases (2), explosion-proof structures (3), a venting support (14), and batteries (4). The venting support (14) divides an accommodating space (10) of the case (1) into an accommodating cavity (101) and a venting cavity (102); the mounting bases (2) are arranged at mounting holes (20) on an outer wall of the case (1) and sealedly connected to the case (1); the mounting bases (2) are each provided with a pressure relief channel (200); the explosion-proof structures (3) seal the pressure relief channels (200); the venting support (14) is provided with vent holes (1401); the vent holes (1401) are in communication with the venting cavity (102) and the pressure relief channels (200). Gas generated by thermal runaway of a battery (4) is collected in the venting cavity (102) and enters the pressure relief channels (200), and when the gas pressure in the pressure relief channels (200) reaches a preset value, the explosion-proof structures (3) are opened for the gas to be discharged out of the case (1). The pressure relief channels (200) are formed on the mounting bases (2), and the structural design of the pressure relief channels (200) is not limited by the structure of the case (1), thereby facilitating design and processing of the pressure relief channels (200), ensuring that the pressure relief channels (200) have enough gas release space, and reducing the impact of the pressure relief channels (200) on the strength of the case (1).
Resumen de: WO2025130225A1
An electrode piece, an electrode core, a battery, and a power device. The electrode piece comprises a current collector and a coating material layer arranged in a stacked manner on the surface of the current collector; the portion of an end part of the current collector exposed out of the coating material layer forms an electrode tab, and foil is arranged on the electrode tab, wherein the ratio of the thickness of the foil to the thickness of the current collector is not greater than 5.
Resumen de: WO2025130222A1
Disclosed in the present application are an acquisition assembly, a battery module, and a battery box. The acquisition assembly comprises an insulating support (2), acquisition traces (3), an FPC acquisition board (4) and a connector (5), wherein the FPC acquisition board (4) comprises an FPC acquisition body (41), a connection portion (42) and a redundancy portion (43), the FPC acquisition body (41) being fixedly connected to the tops of expansion beams; the ends of the acquisition traces (3) are connected to the FPC acquisition body (41); the connection portion (42) is connected to the connector (5); two ends of the redundancy portion (43) are connected to the FPC acquisition body (41) and the connection portion (42), respectively; and the connector (5) is connected to a BMS slave board.
Resumen de: WO2025129562A1
The present application relates to the field of positive electrode material preparation, and provides an iron phosphate material, a preparation method therefor and a use thereof. According to the preparation method, modified nanocellulose having double bonds and carboxyl groups is used to form an iron phosphate seed. On the one hand, the modified nanocellulose is interspersed in iron phosphate of the seed, so that dispersion occurs in the interior of the seed, thereby reducing the grinding difficulty and improving the grinding efficiency, and thus facilitating obtaining small-particle-size iron phosphate. On the other hand, the modified nanocellulose undergoes cross-linking and forms a three-dimensional mesh coating on the surface of the seed, so that the seed has a high specific surface area and a large number of active groups to attract iron ions. Therefore, by using the obtained seed to further grow the iron phosphate material, the reaction can be greatly accelerated, thereby increasing the yield of the iron phosphate material.
Resumen de: WO2025129430A1
A halogen positive electrode, a preparation method and a zinc-halogen battery. The preparation method comprises: dispersing cationic cellulose nanofibers in an organic solvent to form a dispersion; mixing and stirring the dispersion, activated carbon, ketjen black and a binder to obtain a mixed coating liquid; coating the mixed coating liquid on a current collector and drying same to form a host material; and depositing a halogen active substance on the host material to obtain a halogen positive electrode. By introducing the cationic cellulose nanofibers, the loading capacity of the halogen active substance can be effectively improved, the halogen active substance can be stably fixed on the positive electrode side, and the shuttle of the positive electrode active substance can be inhibited, thereby improving the energy density of the zinc-based halogen battery in terms of the full battery and the cycle stability at high temperatures.
Resumen de: WO2025129503A1
The present disclosure relates to the technical field of lithium-ion battery positive electrode materials. Disclosed are a preparation method for nano lithium iron phosphate and an application thereof. The method comprises: dispersing iron phosphate in an alcohol solvent, and performing ultrasonic treatment to obtain a suspension A; performing laser treatment on the suspension A, stirring the suspension A during the laser treatment, adding a lithium source and a carbon source into the suspension A having undergone laser treatment, and mixing same to obtain a suspension B; and performing spray drying on the suspension B to obtain dried powder, and sintering the dried powder in an inert atmosphere to obtain nano lithium iron phosphate.
Resumen de: WO2025129347A1
An energy storage system is disclosed that includes a battery pack; an energy input connected to the battery pack for receiving energy from an energy source unit; an energy output connected to the battery pack for powering an energy consumption unit; at least one heater in thermal communication with the battery and the energy source unit, the heater adapted to heat the battery by: obtaining heat, from the energy source unit; and upon failure to obtain energy from the energy source unit, from the battery back; a temperature sensor for reading the temperature of the battery; and a controller in communication with the heater and the temperature sensor. A thermally conductive and moisture resistant encapsulant, encapsulates the battery pack.
Resumen de: US2025210281A1
A disclosed electrochemical device includes a wound body that is constituted of a belt-shaped positive electrode containing active carbon as a positive electrode active material, a belt-shaped negative electrode, and a belt-shaped separator. The wound body includes a winding shaft part that is formed by being sandwiched between winding shafts and a winding part that is connected to the winding shaft part. The winding shaft part includes a portion of one end side of the negative electrode and a portion of one end side of the separator. The positive electrode, the negative electrode, and the separator are wound in the wound body such that both surfaces of the positive electrode face the negative electrode.
Resumen de: US2025210291A1
An in-vehicle control device (10) includes a determination unit (11) that determines whether or not a target contactor (21) for connecting and disconnecting a high-voltage circuit of a battery (2) installed in a vehicle is likely to have sticking after the high-voltage circuit is used; and a vibration control unit (13) that performs a vibration control including a target vibration control to repeatedly turn on and off the target contactor (21) when the determination unit (11) determines that the target contactor (21) is likely to have sticking, whereby attempt to remove a transient short circuiting of the target contactor.
Resumen de: US2025211152A1
The present directed to a cordless power tool system including a plurality of cordless power tools, a plurality of fixed voltage and multi-voltage battery packs and a plurality of battery pack chargers. The battery packs include a battery strap coupling a printed circuit board to a plurality of battery cells. The battery strap including a first portion and a second portion. The battery strap first portion is made of a first material and the battery strap second portion is made of a second portion that is different than the first material. The first portion of the battery strap may include a fuse.
Resumen de: US2025211002A1
A protection circuit configured to connect: a contact positive electrode terminal, a first contact negative electrode terminal, and a second contact negative electrode terminal that are exposed to an outside in a connector portion connected to a device including a secondary battery; and a positive electrode terminal and a ground terminal provided in a power output unit configured to output power supplied to the secondary battery via the contact positive electrode terminal, the first contact negative electrode terminal, and the second contact negative electrode terminal. The protection circuit uses a P-type MOSFET between the contact positive and positive terminals, with five paths: one links the contact positive to the MOSFET's drain, another connects the positive terminal to the source, a third ties the source path to the first negative terminal via a resistor, a fourth connects the gate to the resistor junction, and a fifth grounds the second negative terminal.
Resumen de: US2025211010A1
The present disclosure discloses a discharging circuit of an energy storage module, a backup power capacity determination method for an energy storage module, and a related assembly. The discharging circuit includes a constant-current source discharging circuit and a processor; the processor generates a target discharging current corresponding to a target type of an energy storage module; and when the energy storage module discharges by means of the constant-current source discharging circuit, the discharging current of the energy storage module is the target discharging current. Therefore, according to the present disclosure, different target discharging currents may be set for different types of energy storage module, and the energy storage module discharges at a constant target discharging current in a discharging process by means of the constant-current source discharging circuit.
Resumen de: US2025210630A1
A composite material (30) as one example of the embodiment of the present invention includes an Si-containing composite material (30) that contains an amorphous carbon phase (31), and silicon (32) and a metal oxide (35) which are dispersed in the carbon phase (31). The content of the metal oxide (35) is 0.001-2% by mass relative to the mass of the Si-containing composite material (30). The content of the silicon (32) is 60% by mass or less relative to the mass of the Si-containing composite material (30).
Resumen de: US2025210646A1
A positive electrode active material for a non-aqueous electrolyte secondary battery according to one example of the present embodiment contains, as a main component, a lithium-cobalt composite oxide having a layered crystalline structure. The lithium-cobalt composite oxide is represented by general formula LiCo(1-w-x-y-z)AlwMgxTiyMnzO2 (in the formula, 0.010≤w≤0.013, 0.003≤x≤0.006, 0.0004≤y≤0.0006, and 0≤z≤0.0015), and preferably contains Mn.
Resumen de: US2025210632A1
In the bipolar electrode, a cathode active material layer, an electrode current collector, and an anode active material layer are provided in this order, the cathode active material layer includes a first cathode active material and a second cathode active material having a layered crystal structure, the first cathode active material has a number-based first particle size distribution, the second cathode active material has a number-based second particle size distribution, and the first cathode active material and the second cathode active material satisfy the following relationship (1): 1.5<(D150/D250)≤15 (1). In Expression (1), D150 indicates a particle size having an integrated value of 50% in the first particle size distribution, and D150 has a unit of μm, and in Expression (1), D250 indicates a particle size having an integrated value of 50% in the second particle size distribution, and D250 has a unit of μm.
Resumen de: US2025210622A1
Disclosed is a lithium ion battery. The lithium ion battery includes a positive electrode plate, a negative electrode plate and a separator. The positive electrode plate, the separator and the negative electrode plate are stacked successively and then wound from inside to outside. The positive electrode plate includes a positive electrode current collector. At least one functional surface of the positive electrode current collector is provided with a protective layer. A surface of the protective layer away from the positive electrode current collector is provided with a positive electrode active layer. A length of the protective layer is greater than a length of the positive electrode active layer in a winding direction of the positive electrode current collector. According to the present application, by increasing a protection area of the protective layer for a positive electrode current collector, safety performance of the lithium ion battery is improved.
Resumen de: US2025210626A1
A lithium secondary battery may include an electrode assembly including a positive electrode, a negative electrode, and a separator, an electrolyte, and a battery case accommodating the electrode assembly and the electrolyte. The negative electrode includes a negative electrode active material layer containing graphite and a Si/C composite. The positive electrode includes a positive electrode active material layer containing a lithium transition metal oxide represented by Formula 1. The graphite and the Si/C composite are present in a weight ratio of 93.1:6.9 to 99.9:0.1 in the negative electrode active material layer. The electrolyte includes a non-fluorinated saturated cyclic carbonate and a fluorine-based compound in a weight ratio of 40:1 to 40:20, and the fluorine-based compound is present in an amount of 1 wt % to 5 wt % with respect to a total weight of the electrolyte.Li1+x1Niy1Coz1Mnw1M1v1O2 Formula 1wherein all the variables in Formula 1 are described herein.
Resumen de: WO2025130537A1
A weakly polar organic solvent for a solid-state electrolyte containing M and X, a preparation method therefor and a use thereof. The weakly polar organic solvent comprises an alkali metal halide MX, wherein M is Li+ or Na+, and X is a halide ion. A certain amount of MX is added into the weakly polar organic solvent, and the common ion effect of MX is used, so that the dissolution of M and X on the surface of the solid-state electrolyte containing M and X can be suppressed, preventing the surface composition of the solid-state electrolyte from changing, avoiding the reduction of the ionic conductivity, and improving the solvent stability of the solid-sate electrolyte containing M and X.
Resumen de: WO2025130291A1
A ceramic solid electrolyte film and a preparation method therefor. The preparation method comprises the following steps: (1) mixing a solid electrolyte blank with a fibrillatable polymer, so that the polymer is fibrillated and is uniformly mixed with the solid electrolyte blank; (2) carrying out hot pressing treatment on the mixture obtained in step (1) to a preset thickness, so as to obtain a solid electrolyte intermediate film; (3) carrying out high-temperature sintering on the solid electrolyte intermediate film obtained in step (2) to obtain a solid electrolyte film. The preparation method of the solid electrolyte film simplifies the preparation process, and the prepared solid electrolyte film has a high ceramic content, a compact structure and a high ionic conductivity.
Resumen de: WO2025130288A1
The present invention provides a battery pack and an electrical device. The battery pack has a first direction, a second direction and a third direction, which intersect. The battery pack comprises at least two battery columns and at least one cooling plate. The at least two battery columns are distributed at intervals along the first direction, and a gap is formed between every two adjacent battery columns, the cooling plate being disposed in a gap. Each battery column comprises multiple battery cells, the multiple battery cells being distributed along the second direction. A cooling plate is provided with multiple concave portions, the multiple concave portions being distributed at intervals along the third direction, and the concave parts being recessed along a direction away from the battery cells in contact with the concave parts.
Resumen de: WO2025130266A1
A sodium ion layered metal oxide material and a preparation method therefor, a positive electrode material, and a sodium ion battery, relating to the technical field of sodium ion batteries. The sodium ion layered metal oxide material has a chemical formula as shown in formula I: NaxNiaMnbTi(0.5-b)M(0.5-a)O(2-y)Fy, wherein 0.9≤x≤1.0, 0.3≤a<0.5, 0.3≤b≤0.4, 0.1≤1-a-b≤0.35, 0≤y<0.1, and M comprises at least one of Zn, Mg, Sn, Sb, Y and Cu. By doping the F element and the M element, the structural stability of the material is improved, the generation of an impurity phase can be reduced, and the M element in a finished product is more uniformly distributed, so that a positive electrode sheet and sodium ion battery containing the sodium ion layered metal oxide material have a high discharge specific capacity and good cycle performance.
Resumen de: WO2025129422A1
A thermal-conductive silicone potting composition comprising a component (A) comprising: a vinyl organopolysiloxane, a catalyst, a filler combination, an optional pigment; a component (B) comprising an optional vinyl organopolysiloxane, a hydrogenated organopolysiloxane, an optional inhibitor, a filler combination, wherein the filler combination includes: a non-spherical alumina having an average particle size of less than 3 μm, an alumina having an average particle size of 5 μm to 15 μm, a spherical alumina having an average particle size of 30 μm to 70 μm. The thermal conductive silicone potting compositions show high thermal conductivity, high flowability, low viscosity and good storage stability.
Resumen de: WO2025129275A1
A solar battery system, method and interface module is provided. The system comprises: a vehicle battery assembly that has been removed from an electric vehicle; a solar inverter, coupled to one or more solar panels, and configured to power one or more electrical items; and a battery interface module, intermediate the control interface of the solar inverter and the battery management system of the vehicle battery assembly. The vehicle battery assembly including a plurality of cells and a battery management system. The solar inverter includes a DC battery output, coupled to the cells of the vehicle battery assembly, and a control interface, configured to send and receive control messages. The battery interface module is configured to receive messages from the control interface of the solar inverter in a first format, and send messages to the battery management system of the vehicle battery assembly in a second format and according to the received messages from the control interface of the solar inverter.
Resumen de: WO2025129240A1
According to the present invention there is provided a composite particulate comprising a discontinuous phase and a binder; the discontinuous phase comprising a lithium aluminosilicate having a mean particle size in a range of about 2 to about 50 mm and having a lithium concentration of about 0.05 to about 5 wt.%; the binder comprising a sodium salt and/or a solid acid; a discontinuous phase to binder mass ratio of about 10:1 to about 1:1; and a particle size of about 25 to about 2000 mm.
Resumen de: WO2025129405A1
An electrolyte for electrochemical repair of a lithium battery and a preparation method therefor, an electrochemical repair and regeneration method, and a recycling method, relating to the technical field of resource recycling and regeneration. Raw materials of the electrolyte for electrochemical repair of the lithium battery comprise: a lithium salt, an aromatic agent, a stabilizing additive and a solvent, the final concentration of the lithium salt in the electrolyte is 0.1-15 g/L, the final concentration of the stabilizing additive is 0.1-5 g/L, and a mass ratio of the lithium salt to the aromatic agent is (1-5):(1-5). The electrolyte can improve the effect of repair and regeneration. When the electrolyte is used for electrochemical repair, a decommissioned battery does not need to be destroyed, no additional impurities are introduced, and indexes of an electrode sheet, such as the powder resistance and compaction density would not deteriorate. An electrochemical reaction has high current efficiency.
Resumen de: US2025210984A1
The invention pertains to the control technology of microgrid energy storage systems, particularly to a hierarchical distributed control method and device for microgrid cluster with heterogeneous batteries. This method includes primary droop control, two-layer voltage regulation control, and two-layer power management control. The incremental cost of heterogeneous batteries is physically defined as the partial derivative of energy loss with respect to output power. A cooperative control method for the incremental cost of multiple heterogeneous battery units is proposed, which can achieve economic power distribution among multiple heterogeneous battery units while meeting the constraints of charging/discharging power, SoC, and power balance. This invention's method integrates battery types where charging efficiency is tied to charging power with those where charging efficiency is connected to SoC, ensuring ease of expansion. Even with the introduction of a new battery type in the microgrid cluster, the method continues to be effective.
Resumen de: US2025210916A1
A connection structure in which an electronic device and a battery are electrically connected via a connector, the connector including a first connector provided on a side of the electronic device connected to the high voltage circuit, and a second connector provided on a side of the battery module connected to the first connector. Further, the electronic device includes a release member, which relatively moves towards a direction to release the connection of the second connector with respect to the base, and the release member, when a load in the direction to release the connection is input from the housing, moves in the direction for releasing the connection of the second connector and apply a load to the second connector so as to release the connection with the first connector.
Resumen de: US2025210826A1
A battery is provided and includes a battery device, an outer package member, an external terminal, a first electrode lead, and a second electrode lead. The battery device includes a first electrode and a second electrode. The outer package member contains the battery device. The external terminal is attached to the outer package member with an insulating member interposed between the external terminal and the outer package member. The first electrode lead couples the first electrode and an inner surface of the external terminal to each other. The second electrode lead couples the second electrode and an inner surface of the outer package member to each other. One or each of the first electrode lead and the second electrode lead includes a first end part, a middle part, and a second end part in order along a width direction orthogonal to a longitudinal direction of corresponding one of the first electrode lead or the second electrode lead. The middle part is flat and is welded to the inner surface of the external terminal or the inner surface of the outer package member. The first end part, the second end part, or both are bent in a direction away from the inner surface of the external terminal or the inner surface of the outer package member.
Resumen de: US2025210825A1
A battery cell of the present disclosure includes an electrode assembly in which an electrode including a flag and a separator are wound, a can accommodating the electrode assembly, a cap plate sealing the can, and a current collector disposed between the cap plate and the electrode assembly and in contact with the flag, the can, and the cap plate, respectively.
Resumen de: US2025210819A1
A battery module including a busbar assembly including a busbar, a support film supporting the busbar, and a support plate supporting the support film, and a method for manufacturing the same are disclosed. A battery module includes: a plurality of battery cells arranged in a first direction and each including a cell case and a cell terminal protruding from the cell case; and a busbar assembly including a busbar to allow electrical connection between respective cell terminals of at least one pair of battery cells among the plurality of battery cells, a support film coupled to the busbar to support the busbar, and a support plate coupled to the support film to support the support film.
Resumen de: US2025210625A1
A positive electrode includes a positive electrode active material layer including a first positive electrode active material and a second positive electrode active material having different average particle diameters from each other. An average particle diameter D50 of the first positive electrode active material is larger than an average particle diameter D50 of the second positive electrode active material, the first positive electrode active material and the second positive electrode active material include single-crystalline particles, and an interface resistance of the positive electrode having an SOC of 50% measured in a coin half-cell manufactured using the positive electrode is about 6.5Ω to 8.5Ω, and an interface resistance of the positive electrode having an SOC of 10% measured in a coin half-cell manufactured using the positive electrode is about 15Ω to 19Ω.
Resumen de: US2025210623A1
A negative electrode for a nonaqueous electrolyte secondary battery. The negative electrode has a negative electrode mixture layer containing a negative electrode active material. The negative electrode active material includes a first material containing silicon and a second material having a reaction potential with Li higher than silicon. The content Cs of the silicon in the negative electrode mixture layer is 10 mass % or more.
Resumen de: US2025210624A1
A positive electrode for a lithium-sulfur battery, a positive electrode comprising the same, a lithium secondary battery comprising the positive electrode, and a method for preparing a positive electrode slurry are provided. The positive electrode comprises a positive electrode active material, a first conductive material and a second conductive material, wherein the positive electrode active material comprises a sulfur-carbon composite comprising a porous carbon material and sulfur (S), the first conductive material comprises fibers having an average particle size of 5 μm or less and the second conductive material comprises secondary particles including agglomerates of two or more primary particles of carbon nanotubes (CNT), and the combination of the conductive materials provides improved output characteristics and capacity of the lithium secondary battery.
Resumen de: US2025210615A1
An electrode film manufacturing method includes performing adhesion of polyvinylidene difluoride to active material particles, mixing the active material particles, to which the polyvinylidene fluoride adheres, with polytetrafluoroethylene to obtain a mixture, and fiberizing the polytetrafluoroethylene in the mixture. A process of the fiberization is carried out at a temperature of 50° C. or higher, and the mixture does not contain a solvent.
Resumen de: US2025210618A1
A method of manufacturing a collector with an electrode of the present disclosure has a step of fabricating a collector with a coating, and a step of fabricating a collector with an electrode. In fabricating the collector with a coating, a composite material slurry is coated on a collector that is a sheet-shaped collector having plural through-holes or is a web-shaped collector having plural through-holes, and a collector with a coating, which has at least one coating of the composite material slurry, is fabricated. In fabricating the collector with an electrode, cooling air is blown onto the through-holes simultaneously with irradiating of light for heating onto the coating of the collector with a coating, and drying the coating to form a positive electrode layer or a negative electrode layer is formed, and the collector with an electrode is fabricated.
Resumen de: WO2025130468A1
A lithium-ion battery positive electrode material, and a preparation method therefor and a use thereof, relating to the technical field of new energy. The lithium-ion battery positive electrode material comprises a lithium layered metal oxide, a perovskite layer and a fast ionic conductor layer from the center to the surface, and the chemical formula of the perovskite layer comprises M'(Nix'Coy'Mnz')O3. The designed structure can effectively improve the ionic conductivity and the electronic conductivity of the lithium-ion battery positive electrode material, further reduces the impedance of the lithium-ion battery positive electrode material, provides a wrapping protection effect, and improves the overall cycle performance and rate capability of the lithium-ion battery positive electrode material. Also provided are a preparation method for the lithium-ion battery positive electrode material and a use of the lithium-ion battery positive electrode material.
Resumen de: WO2025130503A1
The present disclosure relates to the field of batteries, and in particular to a positive electrode sheet. The positive electrode sheet of the present disclosure comprises a positive current collector and a positive active material layer on at least one side surface of the positive current collector, wherein the positive active material layer comprises a first groove, the positive current collector comprises a tab connecting area located in the first groove, and a positive tab is located in the first groove and connected to the tab connecting area; the positive active material layer comprises a second groove, and the second groove is located in an edge area on one side or two sides of the positive current collector in the width direction; and the tab connecting area comprises a third groove. The positive electrode sheet provided in the present disclosure can effectively relieve edge lithium precipitation under a high-rate charging system, and improve the cycle performance and the capacity retention rate of batteries.
Resumen de: WO2025130472A1
The present disclosure relates to the field of batteries, and in particular to an electrode sheet and a battery. The electrode sheet comprises a current collector, an adhesive layer arranged on at least one side surface of the current collector, and an active material layer arranged on the outer surface of the adhesive layer; the active material layer comprises an active material and fiber particles; and the glass transition temperature of the adhesive layer is 70°C-190°C. The electrode sheet of the present disclosure comprises the adhesive layer arranged between the current collector and the active material layer, and the adhesive layer has a specific glass transition temperature, so that the adhesive layer has excellent bonding strength, sealing performance and thermal stability, and can improve the bonding strength between the active material layer and the current collector, preventing the active material layer from cracking or falling off. In addition, the electronic conductivity, flexibility and mechanical strength of the electrode sheet are further improved, facilitating the improvement of the cycle stability of batteries.
Resumen de: WO2025130206A1
A secondary battery and a battery pack. The secondary battery comprises a case (10), a battery cell (20), and a top cover assembly (30). The top cover assembly (30) comprises a cover plate (31), a pole structure (32), and a connecting sheet (33). The pole structure (32) is provided with a positioning hole (321). The connecting sheet (33) comprises a first connecting portion (331), a positioning portion (332), and a second connecting portion (333); the positioning portion (332) protrudes out of the first connecting portion (331) and is embedded in the positioning hole (321); and the size of the positioning portion (332) in a first direction is A mm, the maximum size of the positioning portion (332) in a second direction is Φ mm, and the inequation of 0.1≤A/Φ≤2 is satisfied.
Resumen de: WO2025129242A1
An energy storage system (10) having cells (11) arranged in series and a battery management system for monitoring voltages of the cells (11). Connection lines extend from a battery management controller to cell junctions. A voltage generator generates a first voltage on the first connection line and a second voltage on the second connection line and a control circuit is provided between each of the first and second connection lines and each of the junctions to which the connection line is connected. When the first and second voltages are generated, the control circuits will connect between the first connection line and a first cell junction where the voltage at said first cell junction is within a range of the first voltage and will connect between the second connection line and a second cell junction where the voltage at said second cell junction is within a range of the second voltage.
Resumen de: WO2025129258A1
Sulfur cathodes which include binding polymers, such as polyvinylpyrrolidone, which are capable of binding, or are bonded to, one or more of metal ions having a valency of two or more, halides, and polyhalogen anions are described. Electrochemical storage devices including the sulfur cathodes exhibit high C-rates over long cycle life.
Resumen de: US2025210702A1
Various battery cells including a cathode material and a solid-state electrolyte (SSE) material having a desired chemical composition are provided. The synthesis process for the SSE material includes drying a gas-liquid mixture to form a gas-solid mixture, obtaining powdered particles, and annealing the powdered particles to obtain crystalline products of the SSE material. The liquid mixture is prepared using stoichiometrically amounts of lithium-containing salt and one or more inorganic salts and then mixed with a gas. The salts are prepared in solutions and the molar ratio of the solutions of lithium-containing salt and the one or more inorganic metal salt are digitally controlled, thereby obtaining large scale synthesis of the SSE materials. The resulting battery cell exhibits enhanced ionic conductivity, structural stability, and safety, making it suitable for next-generation solid-state battery applications with high energy density and extended cycle life.
Resumen de: US2025208857A1
A system includes a plurality of battery packs, an electrical device for charging the plurality of battery packs, and a mobile terminal device comprising a display module. A housing is provided with a plurality of adapter interfaces for respectively and detachably connecting the plurality of battery packs. A wireless communication module is configured to wirelessly communicate with the mobile terminal device, wherein each of the plurality of adapter interfaces comprises a connection terminal for respectively connecting to each of the plurality of battery packs to receive data from each of the plurality of battery packs, the wireless communication module is configured to transmit the data from each of the plurality of battery packs to the mobile terminal device, and the display module is configured to display information of the plurality of battery packs according to the data.
Resumen de: US2025210983A1
A control apparatus decides an upper limit of a magnitude of output power of a power apparatus configured such that electric storage apparatuses, which are attachable and detachable, are able to be connected in parallel, based on a maximum power supply value that is a maximum value of power which each of one or more first electric storage apparatuses, which are the electric storage apparatuses electrically connected to a power terminal of the power apparatus, is able to supply to the power apparatus, and/or decides an upper limit of a magnitude of input power of the power apparatus, based on a maximum power reception value that is a maximum value of power with which each of the one or more first electric storage apparatuses is able to be supplied from the power apparatus.
Resumen de: US2025210824A1
A secondary battery pack includes: a plurality of cell arrays, each including a plurality of unit cells located in series along a first direction; and a frame to include the cell arrays. Each of the unit cells includes: a first surface having a long side extending in the first direction; a second surface opposite to the first surface and having a long side extending in the first direction; a third surface perpendicular to the first surface and in contact with the long side of the first surface and the long side of the second surface; a fourth surface opposite to the third surface; a first side surface in contact with short sides of the first to fourth surfaces; a second side surface opposite to the first side surface; a first electrode terminal on the first side surface; and a second electrode terminal on the second side surface.
Resumen de: US2025210818A1
Provided are a battery module (100), a battery pack, and a vehicle. The battery module (100) includes battery cells (1), a busbar (2), a busbar support (3), and a protection cover (4). The busbar (2) is configured to electrically connect two battery cells (1) and limit a position of the busbar support (3) at the battery cells (1). The busbar support (3) has a first mounting portion (31) and a second mounting portion (32). The protection cover (4) is located at a side of the busbar support (3) away from the plurality of battery cells (1). The protection cover (4) has a third mounting portion (41) and a fourth mounting portion (42). The protection cover (4) is fixed to the busbar support (3) by engaging the first mounting portion (31) and the second mounting portion (32) with the third mounting portion (41) and the fourth mounting portion (42), respectively.
Resumen de: US2025210830A1
A battery cell and a battery module are disclosed. A battery cell includes an electrode assembly, a case receiving the electrode assembly, a cap plate coupled to an opening of the case, a terminal arranged to the cap plate and electrically connected to the electrode assembly, and an insulating member between the electrode assembly and the terminal.
Resumen de: US2025210820A1
Disclosed is a battery pack, including a casing, one or more battery cell stacks, and an electrode fixing component. The battery cell stack is formed by stacking a plurality of pouch battery cells along the thickness direction of the pouch battery cells. The electrode fixing component includes bus bars and a bus bar bracket supporting the bus bars. The bus bar bracket is cooperatively connected with a fixing structure on the casing, and the bus bars are cooperatively connected with an electrode of the battery cell stack.
Resumen de: US2025210644A1
A positive electrode active material for nonaqueous electrolyte secondary batteries according to the present invention is a composite oxide which is represented by general formula LixTMtmMyO2-fFf and has a crystal structure that belongs to the space group Fm-3m; and in the general formula, TM represents a transition metal, M represents a non-transition metal, and if Q=2×tm×(1−(1−f/2)5), Q≥1 is satisfied. With respect to a dV/dq-SOC curve showing the relationship between the state of charge SOC and dV/dq of a half cell that contains this composite oxide, the dV/dq-SOC curve being obtained by charging the half cell with a charging current of 0.1 C at 25° C. to an end voltage within the range of 4.7 V to 4.95 V, there is one or more peaks within the SOC range from 40% to 70%.
Resumen de: US2025210648A1
A high-voltage low-cobalt ternary positive electrode material has a general formula LiaNibCocMndO2, where 0.97≤a≤1.1, 0.5≤b≤0.76, 0≤c≤0.1, 0.24≤d≤0.5, b+c+d=1, and c<0.35d. Compared with the prior art, the positive electrode material can be used at a higher voltage compared to other ternary positive electrode materials which have the same nickel content as the positive electrode material, such that the energy density is increased, and because the positive electrode material has a smaller change in size, the cracking and powdering of the positive electrode material are avoided, the service life of the material is prolonged, and the safety performance of the material is improved.
Resumen de: US2025210633A1
In the bipolar electrode, a positive electrode active material layer, an electrode current collector, and a negative electrode active material layer are provided in this order, and the positive electrode active material layer includes a first positive electrode active material and a second positive electrode active material having a layered crystal structure, and the first positive electrode active material has a cation mixing ratio of 5.0% or less and an excess lithium ratio of less than 1.0% by mass, and the second positive electrode active material has a cation mixing ratio of 3.3% or less and an excess lithium ratio of less than 0.8% by mass.
Resumen de: US2025210616A1
A negative electrode includes a negative electrode active material layer that contains a silicon-based active material, wherein based on a total thickness defined as a distance between opposing first and second surfaces of the negative electrode active material layer, when a cohesion strength is measured respectively at positions corresponding to 25%, 50%, and 75% of the total thickness from the first surface, an average of the measured cohesion strengths ranges from approximately 1 MPa to 20 MPa, a deviation of the measured cohesion strengths is equal to or less than approximately 140%, and a vertical resistance ranges from approximately 0.005Ω to 0.3Ω.
Resumen de: US2025210635A1
A positive electrode material for a lithium-ion battery, a method for preparing same, and a lithium-ion secondary battery including same. The positive electrode material includes a high-nickel material and a coating layer on the surface of the high-nickel material, wherein the coating layer comprises compound CxHy−nOzLin (I) of formula (I) and compound CxHy−n−1 OzLin+1 (II) of formula (II), wherein x, y, z and n are each independently integers where 1≤x≤10, 2≤y≤20, 2≤z≤12, and 1≤n≤3.
Resumen de: WO2025130215A1
An electrode sheet, comprising a current collector (1) and active coatings (2) coated on two sides of the current collector (1). An active coating (2) on at least one side of the current collector (1) is provided with a plurality of first regions (3) in a first direction, and a region gap between the adjacent first regions (3) is Dm. A plurality of grooves (31) are formed in each first region (3). The distance between the adjacent grooves (31) in a direction perpendicular to the long axis of the grooves (31) is Dt, Dt is greater than Dm, and the first direction is the length direction or the width direction of the electrode sheet.
Resumen de: WO2025130428A1
Provided is a secondary battery, which comprises a positive electrode sheet, a negative electrode sheet and an electrolyte solution, wherein the negative electrode sheet comprises a negative electrode active material layer and a solid electrolyte interface film located on the surface of the negative electrode active material layer, the negative electrode active material layer comprising a silicon-oxygen compound coated with a carbon layer; and the electrolyte solution comprises a fluorine-containing compound and a nitrogen-containing compound. In magic angle spin solid state nuclear magnetic lithium spectrum 7Li MAS ssNMR analysis of the solid electrolyte interface film, the lithium element peak area of LiF at the position of -1.4±0.2 ppm is SLiF, and the lithium element peak area of Li3N at the position of 8.1 ppm is SLi3N. The silicon-oxygen compound coated with a carbon layer has a graphitization degree G, where 1＜G×SLiF/SLi3N＜5.
Resumen de: WO2025130425A1
A positive electrode slurry, a positive electrode sheet, an electrochemical device comprising the positive electrode sheet, and an electronic device. The positive electrode slurry comprises an active material, a conductive agent, and a dispersant, and the positive electrode slurry satisfies (I), wherein S is the specific surface area of the active material, and has a unit m2/g, D1 is the volume percentage of particles having a particle size less than 300 nm in the active material, A% is the percentage of the mass of the dispersant accounting for the solid mass of the positive electrode slurry, Y% is the percentage of the mass of the conductive agent accounting for the solid mass of the positive electrode slurry, and D2 is the mass percentage of a granular conductive agent in the conductive agent.
Resumen de: WO2025130380A1
A secondary battery and an electronic apparatus. The secondary battery comprises a positive electrode sheet, a negative electrode sheet and a separator, the separator comprising a base film and a coating provided on at least one surface of the base film. The coating comprises a coating material, the coating can melt and flow when the temperature is greater than or equal to 90°C, the coating weight of a single-sided coating is CW g/m2, the density of the coating material is ρ g/cm3, the porosity of the base film is P%, the thickness of the base film is H μm, and 50%≤CW/(ρ×P×H)×100%≤120%, wherein 0.9≤ρ≤1.05, 20≤P≤50, and 3≤H≤10. The separator in the secondary battery can improve the thermal safety performance of the secondary battery.
Resumen de: US2025210742A1
The present invention provides an apparatus for separating and recycling metal elements in cathode materials of lithium batteries, comprising a device for pretreating lithium batteries, configured to obtain a mixture of powders containing positive-electrode materials; a device of acid leaching, configured to obtain leachate; if the to-be-recycled lithium battery contain a lithium iron phosphate battery, the apparatus further comprises a heating furnace for heating the solid products, obtained after acid leaching and solid-liquid filtration, in an oxygen-containing atmosphere; if the to-be-recycled lithium battery contains a ternary lithium battery, the apparatus further comprises a first extraction device for performing extraction on the leachate, wherein diisooctyl phosphate is extraction agent.
Resumen de: US2025206404A1
A time display system for an electrically assisted vehicle includes a display and at least one processor configured or programmed to acquire time information representing information on a time that is output by a battery pack that supplies electric power to an electric motor that generates drive power to cause the electrically assisted vehicle to travel, and to cause the display to display a current time based on the time information.
Resumen de: US2025205918A1
An electrode plate notching apparatus and an electrode plate notching method using the same are disclosed. An electrode plate notching apparatus includes a first mold including a punch hole, a second mold configured to vertically move above the first mold and including a punch, a first body coupled to the first mold and spaced apart from the punch hole, a second body coupled to the second mold and facing the first body, a scrap pusher movably arranged on the second body and configured to discharge a scrap from the punch hole, and a trigger arranged on the first body and configured to move the scrap pusher in conjunction with vertical movement of the second body.
Resumen de: US2025205822A1
A cutting apparatus for producing an electrode film from an incoming film. The apparatus includes a continuous movement device of the incoming film and a cutting unit.
Resumen de: US2025210816A1
A battery pack includes: a plurality of battery cells, each battery cell of the plurality of battery cells having a positive terminal and a negative terminal; one or more top holders and one or more bottom holders adapted to receive end portions of the plurality of battery cells; and one or more top plates arranged on the one or more top holders and one or more bottom plates arranged on the one or more bottom holders, each of the one or more top plates and the one or more bottom plates having a plurality of interconnectors and each of the plurality of interconnectors having a hole and a connecting structure extending from the hole to enable contact with the positive terminal of the battery cell.
Resumen de: US2025210810A1
Provided are an all-solid-state secondary battery and a method of manufacturing the all-solid-state secondary battery. According to an aspect of the present disclosure, there is provided a method of manufacturing an all-solid-state secondary battery, the method including forming a unit stack cell structure including a cathode layer, a solid electrolyte layer, an anode layer, and an elastic layer, inserting the unit stack cell structure into a housing, and foaming the elastic layer, wherein, in the forming of the unit stack cell structure, the elastic layer has a pad shape that is not foamed, and in the foaming of the elastic layer, the elastic layer is in the form of a foam.
Resumen de: US2025210817A1
An interconnector, for connecting a plurality of cells in a battery pack, includes: a main interconnect segment for connecting the plurality of cells, the main interconnect segment having a plurality of openings between a first end and a second end of the main interconnect segment, the plurality of openings being adapted to respective terminals of the plurality of cells in the battery pack; and a plurality of wire bonds connecting the main interconnect segment to the terminals of the plurality of cells, the respective plurality of wire bonds at one end being connected to the terminals of the respective plurality of cells, the respective plurality of wire bonds at another end being connected to a plurality of connecting portions on the main interconnect segment, the plurality of connecting portions being substantially close to the respective terminals of the plurality of cells.
Resumen de: US2025210814A1
Provided are a separator having significantly improved withstand voltage characteristics and a lithium secondary battery including the same. The separator includes a porous substrate and an inorganic particle layer including a binder and inorganic particles formed on at least one surface of the porous substrate, wherein the separator has a ratio of a breakdown voltage (kV) of the separator to an overall average thickness (μm) of the separator of 0.15 kV/μm or more, has a peak in a range of 1070 cm−1 to 1082 cm−1 in a spectrum by Fourier transform infrared spectroscopy (FT-IR), has heat shrinkage rates in the machine direction and in the transverse direction of 5% or less as measured after being allowed to stand at 150° C. for 60 minutes, and has ΔGurley permeability of 100 sec/100 cc or less.
Resumen de: US2025210815A1
Embodiments of the present disclosure relate to a separator having pore diameters D10, D50, and D90 satisfies all of 180 nm≤D10≤350 nm, 380 nm≤D50≤650 nm, and 670 nm≤D90≤1000 nm. The separator according to an embodiment has improved heat resistance by satisfying the predetermined pore diameter ranges, and a battery comprising the separator may have improved performance.
Resumen de: US2025210631A1
A positive electrode material contains a porous carbon material, a positive electrode active material containing sulfur, and a lithium halide, wherein at least a part of the positive electrode active material and at least a part of the lithium halide are placed inside the pores of the porous carbon material. The positive electrode material provides a means for further reducing an internal resistance of a secondary battery.
Resumen de: US2025210619A1
The present technology relates to an electrode slurry coating method and apparatus comprising a pressure adjustment member for adjusting the discharge pressure of slurry, and enables electrode slurry to be discharged under constant pressure even when a coated part and an uncoated part are repeatedly formed on a current collector layer.
Resumen de: US2025210628A1
The present disclosure generally relates to coated micro silicon active material particles and/or a coated anode an anode composition. The present disclosure also relates to an anode for a lithium-ion battery, and anode compositions thereof. The present disclosure also relates to a method of incorporating the anode composition into an electrochemical cell.
Resumen de: US2025210621A1
A method for manufacturing a battery cell includes providing an anode electrode including a nonplanar silicon film arranged on an anode current collector; immersing the anode electrode in a solution comprising lithium metal, an arene, and an organic solvent for a predetermined period to form a pre-lithiation coating on the nonplanar silicon film; and heating the anode electrode to remove the organic solvent and the arene after the predetermined period.
Resumen de: US2025210627A1
A composite electrode, a manufacturing method thereof, and a lithium-ion battery are provided. The composite electrode includes a current collector; and a composite material layer disposed on at least one side surface of the current collector. The composite material layer comprises n-layer active substance layers and n-1-layer lithium supplement layers that are stacked at intervals, in which n is greater than or equal to 3 and n is an integer. A side of the composite material layer which is adjacent to the current collector is one of the n-layer active substance layers. Porosity of the n-1-layer lithium supplement layers gradually increases along a direction away from the current collector.
Resumen de: US2025210620A1
Prelithiated negative electrodes are prepared under controlled conditions. Lithium foils are laminated onto active material layers using sufficient pressure such that heat is generated upon initiation of reaction of between lithium and the active material. The reaction proceeds to completion with the laminated assembly maintained under solvent-free, temperature controlled conditions for up to about 24 hours. The prelithiated negative electrode active material has a voltage against lithium metal of not more than about 1V at a value of lithium uptake of 10% of capacity, and irreversible capacity loss associated with the active material has been eliminated. Roll-to-roll processes and apparatus are described for safe manufacture of hundreds of meters of the prelithiated negative electrodes which can be taken up in roll form to be cut and assembled with other components to form lithium ion cells.
Resumen de: WO2025130427A1
A positive electrode slurry, a positive electrode sheet, an electrochemical device comprising same, and an electronic device. The positive electrode slurry comprises an active material and a conductive agent. The positive electrode slurry satisfies: (I), wherein θ represents the percentage by volume of particles having a particle size less than 300 nm in the active material; X1 represents the percentage of the mass of the active material in the solid mass of the positive electrode slurry; X2 represents the percentage of the mass of the conductive agent in the solid mass of the positive electrode slurry; S1 represents the specific surface area of the active material, with the unit of m2/g; S2 represents the specific surface area of the conductive agent, with the unit of m2/g; D1 represents the particle size distribution coefficient of the active material; and D2 represents the particle size distribution coefficient of the conductive agent. According to the positive electrode slurry satisfying the limiting condition, various components in the slurry can form a good dispersion system, thereby effectively keeping the dispersity and stability of the positive electrode slurry while increasing the solid content of the positive electrode slurry, thus improving the rate and cycle performance of a battery cell and reducing impedance.
Resumen de: WO2025130183A1
A method and system for triggering thermal runaway of a battery, capable of triggering thermal runaway of a battery cell during battery testing. The method comprises: charging a target battery cell in a battery, such that the power level of the target battery cell is greater than the power levels of the remaining battery cells in the battery; and when the power level of the target battery cell is greater than the power levels of the remaining battery cells, charging the battery.
Resumen de: WO2025130426A1
A dry electrode film. The dry electrode film comprises an active material and a binder. The binder comprises a polymer, and carbon nanotubes and carbon black which are dispersed in the polymer, wherein the average diameter of the carbon nanotubes is 13 nm to 100 nm, and the D/G ratio of the carbon nanotubes is 0.5 to 1.4. Also provided is a method for manufacturing the dry electrode film. On the basis of the total weight of the binder, the sum of the content of the carbon nanotubes and the content of the carbon black is greater than 5 wt%, and the content of the polymer is greater than 40 wt%; and the weight ratio of the carbon black to the carbon nanotubes is 8: 1 to 1: 8.
Resumen de: US2025205823A1
A secondary battery electrode plate processing jig apparatus is provided and an electrode plate processing method using the same is also provided. The secondary battery electrode plate processing jig apparatus includes: a base portion; a rotating plate rotatably installed on an upper portion of the base portion; a driving portion that provides a rotational driving force to the rotating plate; and a plurality of clamping portions installed on the rotating plate. Each of the clamping portions is configured to clamp an electrode plate such that the electrode plate can be transported to a plurality of processing positions. A controller controls each of the clamping portions to clamp electrode plates according to a process of the electrode plate and control the driving portion to rotate the rotating plate according to the process.
Resumen de: US2025205820A1
A method for welding a multi-layer aluminum foil of a current collector of a battery onto a corresponding structure includes performing a laser welding operation. The laser welding operation includes a spot welding operation of welding the multi-layer aluminum foil and the corresponding structure to each other using laser pulses. The corresponding structure is located under the multi-layer aluminum foil in a stacking direction of the multi-layer aluminum foil.
Resumen de: US2025205818A1
The laser welding system can have: a laser welder having an emitter configured to emit the laser beam, and a scanning head optically coupled to the laser emitter; a robot having an end effector having a body, a resilient member having a first end mounted to the body and a second end opposite the first end, a pressing element at the second end of the resilient member, and a laser aperture extending across the body, the resilient member and the pressing element; and wherein the laser beam can be directed across the laser aperture by the scanning head when either one of the pole regions is pressed against a corresponding one of the electrical poles by the pressing element.
Resumen de: US2025205817A1
The present invention provides a laser welding device, which irradiates laser to perform welding so that an electrode lead and an electrode tab sequentially pass through an opening hole of a base plate and an opening hole of an upper mask when the electrode lead and the electrode tab are seated on a lower mask in a state in which a laser irradiator, the base plate, and the upper mask are coupled to each other, the laser welding device including: the base plate provided with a coupling tool that protrudes from one surface thereof; and the upper mask provided with a coupling hole through which the coupling tool enters and coupled to the base plate by coupling the coupling tool to the coupling hole, wherein the coupling tool comprises a cylinder which has a hollow shape therein in a longitudinal direction and in which an air hole is punched, a piston which is capable of being slid inside the cylinder in a state of being coupled to a spring and has a section of which a diameter is reduced toward one side thereof, and a ball coupled to the cylinder, and when the coupling hole enters the inside of the coupling hole, the ball enters a groove formed in an inner circumferential surface of the coupling hole by the piston so as to be prevented from being separated, wherein, when air is injected into the air hole, the piston is slid to separate the ball from the groove.
Resumen de: US2025210813A1
Provided are a spacer for a battery cell, a battery cell, a battery pack, and a vehicle. The spacer includes a spacer body having an accommodation groove. The accommodation groove has a gap formed at a bottom wall of the accommodation groove. The gap is in communication with the accommodation groove. The gap is adapted for a tab of the battery cell to pass through the gap to enable the tab to be partially accommodated in the accommodation groove. The spacer body has a width D, and the gap has a width d, where 3*d≤2*D.
Resumen de: US2025210809A1
The present invention relates to the technical field of separators, and in particular to a composite oil-based separator and a preparation method therefor. The composite oil-based separator comprises a base film and a moisture retention coating applied on at least one side surface of the base film, wherein the moisture retention coating comprises an inorganic filler, a bonding polymer, and a moisture retention polymer. The composite oil based separator in the present invention is provided with the moisture retention coating, so that a layer structure having moisture can be formed on the surface of the base film, thereby reducing the electrostatic intensity of the composite oil based separator; thus, when the separator is applied to a battery cell and wound, wrinkling would not occur.
Resumen de: US2025210812A1
A battery has a protection member applied between an electrode assembly and a beading portion. The battery includes an electrode assembly; a battery housing having an opening formed on one side to accommodate the electrode assembly through the opening and including a beading portion formed by press-fitting the perimeter of an outer circumference at the opening; a top cap configured to cover the opening; and a first protection member interposed between the beading portion and the electrode assembly.
Resumen de: US2025210811A1
A power storage device includes a safety valve in a case member made of metal. The case member has a valve periphery roughened portion around the safety valve on a case inner surface The power storage device includes a blockage preventing resin protrusion that is a protrusion made of resin and protruding to the inside. The blockage preventing resin protrusion is joined to the valve periphery roughened portion and reduces the possibility of a piece of the electrode body blocking the safety valve. Nanocolumns stand numerously on the valve periphery roughened portion, and the blockage preventing resin protrusion is joined to the valve periphery roughened portion such that a resin material fills gaps between the nanocolumns standing numerously.
Resumen de: US2025210807A1
A composite separator including an adhesive layer and a secondary battery including the same. In the composite separator, the adhesive layer contains a particulate organic binder having a glass transition temperature of 60 to 80° C., and when the adhesive layers are brought into contact with each other, pressurized at a temperature of 50° C. and a pressure of 1.7 MPa for 2 hours, and then peeled at a speed of 300 mm/min and an angle of 180°, blocking does not occur between the adhesive layers, and an adhesive strength to a positive electrode is 5 gf/cm or more.
Resumen de: US2025210617A1
A method for manufacturing a battery cell comprising manufacturing C cathode electrodes by coating first and second cathode active material layers on opposite sides of C cathode current collectors, and applying first and second seal coatings on the C cathode current collectors to surround the first and second cathode active material layers, respectively. The method includes manufacturing A anode electrodes by coating first and second anode active material layers on opposite sides of A anode current collectors; and applying first and second seal coatings on the A anode current collectors to surround the first and second anode active material layers, respectively. The method includes arranging S separators between the C cathode electrodes and the A anode electrodes to form a battery cell stack, where C, A and S are integers greater than one.
Resumen de: US2025210649A1
A novel positive electrode active material is to be provided. In addition, a battery with favorable charge and discharge characteristics is to be provided. The battery includes a positive electrode, and the positive electrode includes a positive electrode active material including lithium cobalt oxide. The lithium cobalt oxide contains magnesium, aluminum, and nickel, and when the concentration of cobalt in the lithium cobalt oxide measured from XPS analysis is represented as 1, the magnesium concentration (Mg/Co) is higher than or equal to 0.50 and lower than or equal to 0.90; and the half width of a Mg1s peak is higher than or equal to 1.0 eV and lower than or equal to 2.6 eV.
Resumen de: US2025210647A1
Disclosed herein a process for preparing a cathode active material of Formula (I) LiNixCoyMnzO2, including steps of: i) preparing a precursor of hydroxides or carbonates of Ni, Co and Mn; ii) mixing the precursor obtained from step i) with a source of Li; and iii) calcining the mixture obtained from step ii), where step iii) includes multi-step calcination, where x is in a range of from 0.80 to 0.95 and preferably from 0.80 to 0.92, y is in a range of from 0.01 to 0.15 and preferably from 0.01 to 0.12, and z is in a range of from 0.01 to 0.15 and preferably from 0.01 to 0.12, and the sum of x, y and z is 1.
Resumen de: US2025210642A1
Disclosed herein is a process for making an electrode active material for lithium-ion batteries. The process includes the steps of(a) providing a cathode active material (α) that has the general formula Li1+x1TM1−x1O2,(b) providing another cathode active material (β) that has the general formula Li1+x2TM1−x2O2, and(c) combining cathode active material (α) and cathode active material (β) in a mass ratio in the range of from 1:5 to 5:1.
Resumen de: US2025210643A1
A positive electrode active material for nonaqueous electrolyte secondary batteries according to the present invention is a composite oxide which is represented by general formula LixTMtmMyO2-fFf and has a crystal structure that belongs to the space group Fm-3m; and in the general formula, TM represents a transition metal, M represents a non-transition metal, and if Q=2×tm×(1−(1−f/2)5), Q<1 is satisfied. With respect to a dV/dq-SOC curve showing the relationship between the state of charge SOC and dV/dq of a half cell that contains this composite oxide, the dV/dq-SOC curve being obtained by charging the half cell with a charging current of 0.1 C at 25° C. to an end voltage within the range of 4.7 V to 4.95 V, there is one or more peaks within the SOC range from 10% to 40%.
Resumen de: WO2025130394A1
The present application relates to the technical field of lithium battery electrode sheets, and provides a positive electrode sheet and a battery. The positive electrode sheet comprises a positive electrode current collector, a positive electrode active material layer and a protective layer; a positive electrode lug is arranged at one end of the positive electrode current collector in a first direction; the positive electrode active material layer is arranged on one side surface or two side surfaces of the positive electrode current collector; and the protective layer is arranged on one side surface or two side surfaces of the positive electrode current collector and located between the positive electrode active material layer and the positive electrode lug, wherein the positive electrode active material layer is provided with first recessed areas, the protective layer is provided with a second recessed area, and the first recessed areas and the second recessed area are all provided with pits. According to the positive electrode sheet, by forming the recessed area in the protective layer, the problem of being unable to form a recessed area on the outermost edge of a positive electrode active material layer due to strip running deviation, positioning deviation or unstable electrode sheet slitting width and the like is avoided, the problem of edge lithium precipitation under a high-rate charging system is mitigated, the cycle performance and the capacity retention rate of the b
Resumen de: WO2025130004A1
The present application relates to the technical field of batteries, and in particular to a positive electrode sheet, a preparation method for a positive electrode sheet, and a lithium-ion battery. To address the problem of poor rate capability of existing lithium-ion batteries, the applied improvement is as follows: a positive electrode sheet and a positive electrode material layer satisfy a relational expression 3.0<η*D50<10, where η is the porosity of the positive electrode sheet, and D50 is a corresponding particle size when a cumulative particle size distribution of the positive electrode material layer is 50%. By means of the improvement above, the positive electrode sheet has higher rate capability and a longer cycle life.
Resumen de: WO2025130381A1
The present application provides an electrochemical device and an electronic device. The electrochemical device comprises an electrode assembly and an electrolyte. The electrode assembly is of a winding structure and comprises curved parts and a straight part, wherein the maximum length of the straight part is L mm, the maximum radius of each curved part is D mm, and 5≤L/D≤10. The electrolyte contains a compound represented by a formula (I), wherein, on the basis of the mass of the electrolyte, the content percentage by mass of the compound represented by the formula (I) is A%, and 30≤A≤80. By means of combining the regulation and control of L/D of the electrode assembly with the the regulation and control of components of the electrolyte, the present application improves the high-temperature cycle performance of the electrochemical device.
Resumen de: WO2025129906A1
The present application discloses a battery and a battery pack. The battery comprises a case, a pole group, an explosion-proof valve, and a pressure relief channel; the battery satisfies that: S1≥αCV and S2≥(αCV)2γ/S1, wherein S2 is the equivalent cross-sectional area of the pressure relief channel, γ is the actual equivalent cross-sectional area coefficient of the pressure relief channel, S1 is the total area of the explosion-proof valve, α is the actual area coefficient of the explosion-proof valve, C is the capacity of the battery, and V is the rated voltage of the battery.
Resumen de: US2025204676A1
A wirelessly locatable tag may include a first housing member defining a first exterior surface of the tag, a second housing member removably coupled to the first housing member and defining a second exterior surface of the tag, and an antenna assembly. The antenna assembly may include an antenna frame defining a top surface and a peripheral side surface, a first antenna on the antenna frame along the peripheral side surface and configured to communicate with the electronic device using a first wireless protocol, a second antenna on the antenna frame along the peripheral side surface and configured to send a localization signal to the electronic device using a second wireless protocol different than the first protocol, and a third antenna on the antenna frame along the top surface and configured to communicate with the electronic device via a third wireless protocol different than the first and second protocols.
Resumen de: US2025208218A1
A computer system for estimating a terminal voltage of a battery cell of a battery is provided. The terminal is electrically connected to another object (such as another battery cell) via e.g. a cell-to-cell busbar. Processing circuitry is configured to obtain a voltage drop across at least the battery cell and at least part of the busbar; obtain a voltage correction value from a model of voltage drop across the busbar, and estimate the terminal voltage based on the voltage drop corrected by the voltage correction value.
Resumen de: US2025208227A1
The purpose of the present invention is to provide a battery degradation state estimation method with which it is possible to highly accurately detect degradation due to reduction in battery capacity, and also provide a degradation suppression control method and a degradation suppression control system which are for suppressing degradation by using data of a result obtained by said battery degradation state estimation method. The present invention is configured to comprise: a degradation state estimation unit including a resistance value history acquisition unit that acquires a resistance value history of a battery in discharging for a predetermined time during traveling of a vehicle, and a degradation calculation unit that calculates the degradation state of the battery from the resistance value history of the battery; and a degradation suppression control unit for performing control on degradation suppression of the battery on the basis of the degradation state of the battery.
Resumen de: US2025208228A1
The battery ECU updates the frequency data of the area having the temperature and SOC of the battery as parameters, and estimates the degree of degradation (amount of degradation) from the frequency data and the degradation coefficient that increases as the temperature increases. When the battery is replaced, the battery ECU obtains an estimated full charge capacity value of the replaced battery, and calculates a degree of degradation of the replaced battery from a difference from the full charge capacity at the time of the new battery. Then, new frequency data is created based on the degree of degradation. The new frequency data is created as frequency data of an area having a high temperature and a large SOC, and the other area is null.
Resumen de: US2025205808A1
A first pressure bonding roller 110 and a second pressure bonding roller 112 have a cylindrical shape. A first metal foil 200 and a second metal foil 202 are inserted between the first pressure bonding roller 110 and the second pressure bonding roller 112. The first metal foil 200 and the second metal foil 202 are pressure bonded by a rotation of the first pressure bonding roller 110 and the second pressure bonding roller 112. The first pressure bonding roller 110 includes a D-cut surface at least in a portion of the cylindrical shape. A protrusion is provided in each of two boundaries between a side surface and the D-cut surface of the cylindrical shape in the first pressure bonding roller 110.
Resumen de: US2025210806A1
An ion selective layer includes a water-soluble organic polymer, a cross-linker, a water-soluble inorganic salt or hydroxide, and water. A method of making the ion selective layer includes dissolving a water-soluble organic polymer in water, dissolving a water-soluble inorganic salt or hydroxide in water, dissolving a cross-linker in water, cross-linking the water-soluble polymer, forming a layer by casting onto a substrate, and drying the water solution to form a film. Another method of making the ion selective layer includes dissolving a water-soluble organic monomer in water, dissolving a water-soluble inorganic salt or hydroxide in water, dissolving a cross-linker in water, dissolving an initiator in water, polymerizing and cross-linking the water-soluble monomer, forming a layer by casting onto a substrate, and drying the water solution to form a film.
Resumen de: US2025210808A1
A slurry composition for a non-aqueous secondary battery functional layer contains a particulate polymer having a glass-transition temperature within a specific range and a binder A including an alkali metal salt group and either or both of a hydroxy group and an acidic functional group.
Resumen de: US2025210805A1
Provided is a battery pack for further suppressing thermal influence of discharged gas on the wire harness. The battery pack according to the present disclosure is provided with a battery module having a smoke exhaust structure, and includes a lower mica sheet mounted on an upper surface of the battery module, a wire harness mounted on an upper surface of the lower mica sheet, and an upper mica sheet mounted on an upper surface of the wire harness, in which an inside of the battery pack of the wire harness is covered with at least one of the upper mica sheet and the lower mica sheet.
Resumen de: US2025210801A1
A rechargeable battery includes: an electrode assembly including an electrode; a case to accommodate the electrode assembly; a cap plate to seal an open area of the case; and one or more terminals electrically connected to the electrode, and coupled to the cap plate. The cap plate includes: a vent to expel gas generated from inside a cell outward; and a venting guide wall surrounding the vent, and protruding outward from a surface of the cap plate at a peripheral portion of the vent.
Resumen de: US2025210804A1
A battery module includes a plurality of battery cells; a housing that houses a plurality of battery cells; a barrier that is arranged between the plurality of battery cells and partitions a compartment together with the housing; and a vent part for a battery cell that is provided in the housing and arranged in the compartment. The housing and the barrier are connected to each other to define the compartment.
Resumen de: US2025210803A1
An electrode assembly includes: a first current collector; a first composite material layer; a second current collector; a second composite material layer; and a separator. The first composite material layer is provided on the first current collector. The second composite material layer is provided on the second current collector. The separator is disposed between the first composite material layer and the second composite material layer. The second composite material layer includes a groove portion. The groove portion extends along a plane direction of the first composite material layer. A ventilation portion is formed at a position that is in contact with the groove portion.
Resumen de: WO2025134875A1
This power supply device is provided with: a plurality of secondary battery cells each having a cylindrical outer can, each end surface of the cylinder serving as a cell end surface; a battery holder housing the plurality of secondary battery cells; an exterior case housing the battery holder; and a cooling part thermally coupled to a side surface of the battery holder. The side surface of the battery holder is curved along the outer shape of the outer can, and the cooling part is curved along the shape of the side surface of the battery holder. By thus placing the cooling part so as to follow the outer shape of the secondary battery cells positioned on the side surface of the battery holder, cooling can be efficiently performed due to an increase in contact area.
Resumen de: WO2025134871A1
This power supply device comprises: a plurality of secondary battery cells each having a cell end surfaces with an electrode provided thereon; one or more battery blocks for accommodating the plurality of secondary battery cells; and an exterior case for accommodating the one or more battery blocks. Each battery block forms a cooling air path, through which cooling air flows, between the inner surface of the battery block and the surface of a cell intermediate region which is between end regions continuous with the cell end surfaces of each secondary battery cell. The exterior case forms an external opening that communicates with the cooling air path, and comprises an electrode waterproof part that is interposed between each battery block and the cell end surface of each secondary battery cell, and that waterproofs the electrodes with respect to the cooling air path.
Resumen de: WO2025133659A1
This battery capacity estimation device comprises: a battery voltage estimation unit 11 that measures or estimates the battery voltage of a secondary battery 1; a charge/discharge control unit 12 that controls charging and discharging of the secondary battery 1; a state-of-charge estimation unit 13 that estimates the state of charge (SOC) of the secondary battery 1; and a battery capacity estimation unit 14 that estimates the battery capacity. The charge/discharge control unit 11 controls charging and discharging of the secondary battery up to a start point by charging or discharging the secondary battery at a constant first current for a first time or longer, and after passing the start point, controls charging and discharging of the secondary battery by charging or discharging at a second current so that the SOC changes from the start point by a prescribed change margin or more, and controls charging or discharging of the secondary battery up to an end point by charging or discharging the secondary battery at the constant first current for a second time or longer. The state-of-charge estimation unit 13 acquires a start-point SOC indicating the SOC at the start point and uses the start-point SOC, the battery voltage at the start point, and the battery voltage at the end point as a basis for estimating an end-point SOC indicating the SOC at the end point. The battery capacity estimation unit 14 estimates the battery capacity on the basis of the SOC difference between the star
Resumen de: WO2025134550A1
A battery according to the present disclosure comprises: a power generation element; and a current collector laminated on the power generation element. In a region where the current collector and the power generation element overlap when viewed along a lamination direction of the power generation element and the current collector, the ratio of a second thickness, which is the maximum thickness at an end portion of the current collector, to a first thickness, which is the thickness of a central portion of the current collector, is 101-200%.
Resumen de: WO2025130412A1
The present invention relates to the technical field of batteries, and in particular to a lithium-ion battery. The lithium-ion battery comprises a positive electrode sheet and an electrolyte. The positive electrode sheet comprises a positive electrode current collector and a positive electrode active material layer located on one side surface or two side surfaces of the positive electrode current collector; the positive electrode active material layer comprises a positive electrode active material; W is the peak intensity ratio of (003) crystal plane to (104) crystal plane in the positive electrode active material; and X is the peak intensity ratio of (006) crystal plane to (104) crystal plane in the positive electrode active material. The electrolyte comprises a phosphate additive; and based on the total weight of the electrolyte, the weight content of the phosphate additive is dwt%. The lithium-ion battery meets the following relations: 0.033≤d/W≤0.4 and 0.67≤d/x≤6.5. The battery has the advantages of good high-temperature cycle performance, good storage performance and high safety performance.
Resumen de: WO2025130137A1
A battery module (10) and a battery pack (100). The battery module (10) comprises end plates (1), pressing strips (2), and battery cells (3). A plurality of battery cells (3) are sequentially arranged in a first direction to form a battery cell group (4); two end plates (1) respectively abut against two ends of the battery cell group (4); each pressing strip (2) comprises a pressing strip main body (21) and a connecting assembly (22), the pressing strip main body (21) extends in the first direction, and the connecting assembly (22) is connected to at least one end of the pressing strip main body (21) in the first direction; and the pressing strip (2) presses against the battery cell group (4), and the connecting assembly (22) movably abuts against the side of the end plate (1) distant from the battery cell group (4).
Resumen de: WO2025129945A1
A laser machining apparatus (100), comprising a laser (110), a beam splitting unit (120), an adjustment unit (130), and a focusing unit (140). The laser (110) generates a first laser beam (111), the beam splitting unit (120) can divide the first laser beam (111) into a plurality of second laser beams (121), and the second laser beams (121) are adjusted by means of a galvanometer system (131) and a polygon mirror system (132), and then focused on a machining plane by means of the focusing unit (140). The cooperation between the galvanometer system (131) and the polygon mirror system (132) can greatly improve the precision of control of the second laser beams (121) by the laser machining device (100), so that the position accuracy of the second laser beams (121) on the machining plane is greatly improved, and then the diameters of holes (310) obtained by machining the machining plane using each of the second laser beams (121) are relatively consistent. In addition, since a beam splitter (122) splits the first laser beam (111), the energy density of each of the second laser beams (121) is relatively consistent, the energy obtained at each machining position is also relatively balanced, and finally, the depths of the holes (310) in an electrode sheet (300) are also relatively consistent. The technical solution of the present application can effectively improve the consistency of the area and depth of laser drilling (310). The present invention also relates to an electrode sheet (
Resumen de: US2025208215A1
A method for testing a battery rack including at least one battery pack by estimating state of health may include implementing a degraded battery simulation state using a relationship among internal resistance of the battery, current flowing through the battery, and amount of heat generated and performing a degradation prediction test in the degraded battery simulation state.
Resumen de: US2025208213A1
A battery monitoring device includes a wiring board having a portion of a wiring provided on a board surface, a circuit component surface-mounted on the board surface and connected to the wiring, and a connector that electrically connects the wiring board to at least a battery. The connector has a terminal connected to a mounting land which is part of the wiring provided on the board surface, and a connector case in which the terminal is provided. The wiring board is provided with a cutout portion recessed from a surrounding area on a part of a side surface, and at least a part of the connector case is disposed in the cutout portion.
Resumen de: US2025208230A1
A battery management system includes an obtaining unit, an estimating unit, and a display. The obtaining unit obtains electrical data of a battery in an operating state of a monitoring unit that monitors the battery, and environmental data in a non-operating state. The electrical data includes a first SOC of the battery before transition from the operating state to the non-operating state and a second SOC of the battery after transition from the non-operating state to the operating state. The environmental data includes an outside temperature. The estimating unit estimates a charge/discharge state in the non-operating state based on the first SOC and the second SOC, estimates a temperature of the battery in the non-operating state based on the outside temperature, and estimates the degradation degree of the battery in the non-operating state based on the estimated charge and discharge state and the estimated temperature of the battery.
Resumen de: US2025208222A1
Provided is a quality inspection device and method for a pouch-type secondary battery cell, which inspects the quality of a plate, a bent portion, or a weld portion of a pouch-type secondary battery cell. An AC signal generating unit generates an AC signal. A magnetic field generating unit generates a magnetic field in accordance with the generated AC signal and induces a current to flow in a pouch-type secondary battery cell. At least one induced current detection sensors each detect the signal of the induced current flowing in the pouch-type secondary battery cell. A control/judgment unit compares the detected induced current signal with a value of a preset judgment range and judges the quality of the pouch-type secondary battery cell.
Resumen de: US2025208219A1
A battery characteristic acquisition system includes a charge control unit, a measuring unit, a storage unit, and a characteristic curve generating unit. The charge control unit charges a battery. The measuring unit measures an OCV before the start of charging of the battery and a charged capacity charged from the start of charging to the completion of charging to full charge, and calculates an SOC at the start of charging by subtracting the measured charged capacity from the full charge capacity of the secondary battery. The storage unit stores the OCV and the SOC obtained from a plurality of times of measurement and calculation. The characteristic curve generating unit generates an SOC-OCV curve of the battery using a plurality of OCVs and remaining capacities.
Resumen de: US2025210832A1
A method of manufacturing a power storage device, which has a battery, injection ports, a tubular member surrounding the injection ports, and a laminate film, includes a step of causing the laminate film to contact the tubular member and welding by heat pressing. At the tubular member, a first region including a surface that contacts the laminate film is structured by resin L, and a second region that is disposed further toward the injection ports side than the first region and that contacts the first region is structured by resin H. At the laminate film, a third region including a surface that contacts the tubular member is structured by resin lam. Melting points Tm or glass transition temperatures Tg of the resin L and the resin lam are lower than that of the resin H. A temperature of the heat pressing is greater than or equal to the melting point Tm or the glass transition temperature Tg of the resin L and the resin lam, and is less than the melting point Tm or the glass transition temperature Tg of the resin H.
Resumen de: US2025210798A1
A lithium secondary battery may include a battery can, an electrode assembly and an electrolyte received in the battery can, and a cap plate to seal the battery can. The battery can includes a first end portion and a second end portion opposite the first end portion. The lithium secondary battery is configured so at least a portion of the electrode assembly is ejected through the first end portion of the battery can when an internal pressure within the battery can is 21 kgf/cm2 or more. After the portion of the electrode assembly is ejected through the first end portion, a distance from an end portion of the electrode assembly located farthest away from the battery can to the second end portion of the battery can is greater than or equal to 1.25 times a distance between the first end portion and the second end portion of the battery can.
Resumen de: US2025210833A1
Production of an insufficiently sealed product is suppressed by sealing by welding a sealing material to a filling port of a secondary battery. A transparent resin film is used as the sealing material.
Resumen de: US2025210828A1
An embodiment of the present disclosure may provide a battery cell including an electrode assembly in which a first electrode including a first uncoated part, a second electrode including a second uncoated part, and a separator disposed between the first electrode and the second electrode are wound in a roll shape, and a cylindrical case including an opening with one side open, and configured to accommodate the electrode assembly inside through the opening, where the first uncoated part and the second uncoated part are disposed in a direction of the opening.
Resumen de: US2025210802A1
An electrical storage system (ESS) comprising a plurality of battery packs arranged side-by-side, each of the battery packs being spaced from an adjacent battery pack such that the side surfaces of the adjacent battery packs form inter-battery pack gas channels and wherein each of the battery pack is provided with a side gas vent opening to one of the inter-battery pack gas channels.
Resumen de: US2025210799A1
The present disclosure relates to a battery including a battery can, an electrode assembly and an electrolyte received in the battery can, and a cap plate assembly to seal the battery can, a battery pack and a vehicle including the same. The battery can has a first end and a second end opposite to each other. When the electrode assembly is ejected through the first end of the battery can by an internal pressure, a distance from the end of the electrode assembly farthest away from the battery can to the second end of the battery can is 1.25 times or more as much as a distance between the first end portion and the second end portion of the battery can; and the ejected portion of the electrode assembly has a mass that is at least 25% of the total mass of the electrode assembly before the ejection.
Resumen de: WO2025134134A1
The present disclosure provides a binder composition comprising: a fibrillating binder; and a non-fibrillating binder of Formula (I): (CH2-CH(R1))-(R2)n, wherein R1 is selected from H or C1-4 alkyl; and R2 is selected from C4-8 alpha-olefins or vinyl acetate. The present disclosure also provides an electrode composite comprising a. an active material; b. at least one conductive carbon; and the binder composition as disclosed herein. The present disclosure further relates to a process for preparing the electrode composite.
Resumen de: WO2025134142A1
A dual-pass cooling system (10) comprises a dual-pass serpentine tube (120) including a thermal barrier (128) for cooling a batten'- pack is provided. The thermal barrier separates the tube into a first portion (120 A) and a second portion (120B), the first portion and the second portion configured to receive coolant liquid from a first manifold (112) and a second manifold (114). The first manifold and the second manifold receive the coolant liquid from a chiller unit (140). The thermal barrier helps in thermally isolating the coolant liquid flowing in the second portion from the coolant liquid flowing in the first portion. As a result, there is no thermal distribution between the coolant liquid flowing in the first portion and the coolant liquid flowing in the second portion of the tube.
Resumen de: WO2025131128A1
A battery module and a battery cell liquid-cooling method. The battery module comprises: battery cells (1) and a case (2), wherein a cavity (21) is formed in the case (2); a plurality of battery cells (1) arranged side by side are placed in the cavity (21); the cavity (21) is filled with a coolant; the bottom surface and top surface of the case (2) are respectively provided with a first flow channel (5) and a second flow channel (4); and the first flow channel (5) and the second flow channel (4) are in communication with the cavity (21), such that the coolant is fed into the cavity (21). By means of the provision of the cavity, the first flow channel and the second flow channel, which are used in cooperation in the battery module of the present application, the battery cells can be fully immersed in the cyclically flowing coolant for heat dissipation, which can ensure uniform heat dissipation of different parts of the battery cells, such that a good liquid-cooling effect is achieved; and the costs are relatively low.
Resumen de: WO2025131121A1
A composite current collector and a manufacturing method therefor, an electrode sheet and a secondary battery. The composite current collector comprises: a base film; at least one transition layer provided on the surface of at least one side of the base film, the transition layer being made of any one or a combination of at least two of metal niobium, metal tantalum, niobium alloy, tantalum alloy, a niobium-based compound or a tantalum-based compound; and a conductive layer provided on the surface of the side of the at least one transition layer relatively away from the base film. The transition layer having good compactness, stability and corrosion resistance is arranged between the base film and the conductive layer, on one hand, the charging and discharging cycle performance of batteries based on the composite current collector can be improved, and on the other hand, the safety performance of the composite current collector is effectively improved, thus improving the safety performance of batteries.
Resumen de: WO2025129933A1
The present disclosure discloses an immersion liquid cooling heat dissipation apparatus for an energy storage device. The immersion liquid cooling heat dissipation apparatus comprises: a cabinet body, which comprises a first liquid inlet pipe, a first liquid outlet pipe, a liquid storage water tank, and a placing frame, the first liquid inlet pipe and the first liquid outlet pipe serving as supporting legs; battery boxes, which are placed on the placing frame, the bottom of each battery box being provided with a flow dividing groove and a flow dividing piece, and the flow dividing pieces guiding cooling liquid to be uniformly distributed to the battery boxes; a spacer sleeve, which is mounted inside of each battery box, a plurality of overflow holes being formed at the top of the spacer sleeve, and a gap being reserved between the spacer sleeve and the battery box and forming an overflow space; a battery pack; and a BMS module. According to the present disclosure, cooling liquid is uniformly distributed into battery boxes by means of flow dividing grooves and flow dividing pieces in the battery boxes, so that the heat dissipation and cooling effects of all battery packs in the battery boxes are similar. Meanwhile, a first liquid inlet pipe and a first liquid outlet pipe of a cabinet body serve as a supporting structure of the cabinet body while conveying the cooling liquid, so that the space occupied by cooling liquid pipeline is reduced.
Resumen de: WO2025129959A1
A negative electrode material and a battery. The negative electrode material comprises primary particles, and the primary particles comprise silicon crystallites; the average crystallite size of the silicon crystallites that is measured under the condition that the negative electrode material is at 25°C is M0
Resumen de: WO2025129907A1
The present application discloses a battery and a battery pack. The battery comprises a case, an electrode assembly, explosion-proof valves, and a pressure relief channel, wherein the actual equivalent cross-sectional area S of the pressure relief channel satisfies: S≥(S1S2)/(nS0), and nS0≥S1, wherein S1 is the sum of the areas of the explosion-proof valves, S2 is the theoretical equivalent cross-sectional area of the pressure relief channel, n is the number of the explosion-proof valves, and S0 is the actual areas of the explosion-proof valves.
Resumen de: US2025208221A1
A battery management apparatus according to one embodiment of the present disclosure includes a storage unit configured to store battery information including a voltage and current, and a control unit configured to calculate a capacity ratio of a battery for each of a plurality of voltage ranges based on the battery information, to compare the calculated capacity ratio for each of the plurality of voltage ranges with a preset reference capacity ratio, and to determine a state of the battery based on a comparison result.
Resumen de: US2025204661A1
A carry case for an electronics-enabled eyewear device, such as smart glasses, has charging contacts that are movable relative to a storage chamber in which the eyewear device is receivable. The charging contacts are connected to a battery carried by the case for charging the eyewear device via contact coupling of the charging contacts to corresponding contact formations on an exterior of the eyewear device. The charging contacts are in some instances mounted on respective flexible walls defining opposite extremities of the storage chamber. The contact formations on the eyewear device are in some instances provided by hinge assemblies that couple respective temples to a frame of the eyewear device.
Resumen de: US2025207856A1
An electrode drying device includes a drying oven, a hot air spray nozzle, and a moisture supply device. The electrode drying device includes an interior space for drying an electrode sheet. The hot air spray nozzle sprays hot air on an electrode sheet being transferred into the drying oven. The moisture supply device includes a water spray nozzle, a water storage tank, and a pump. The water spray nozzle sprays moisture on a non-coating part of an electrode sheet. The water storage tank stores water and the pump is installed in a water storage tank to supply water to a water spray nozzle. The hot air spray nozzle dries an electrode sheet by spraying hot air, and the water spray nozzle may spray moisture on the non-coating part of the electrode sheet.
Resumen de: US2025206614A1
An anode active material for a lithium secondary battery according to the present disclosure includes a porous carbon-based particle including pores. The anode active material for a lithium secondary battery includes a composite coating which is formed on a surface of the porous carbon-based particle, and includes a silicon element and at least one additional element from the group consisting of group 13 elements and group 15 elements. A weight ratio of the additional element to a weight of the silicon element included in the composite coating is 0.01% to 4%. The electrical characteristics and lifespan characteristics of the lithium secondary battery may be improved by including the additional element in a predetermined range of contents.
Resumen de: US2025206619A1
The embodiments herein relate to methods, apparatus, and systems for forming and purifying solid carbon material from a molten carbonate salt electrolyte or spent lithium-ion batteries. Various embodiments also provide methods, apparatus, and systems for recycling certain materials including the carbonate salt electrolyte, carbon dioxide, water, etc. The system utilizes carbon dioxide in one or more processes, for example to purify the solid carbon and regenerate the carbonate salt electrolyte. These methods, apparatus, and systems may also employ a froth separator and/or heatless precipitation reactor to consume carbon dioxide in the production of solid carbon.
Resumen de: US2025206961A1
Provided are electrochemical cells with at least a portion of the exterior surface coated in a conductive aversive coating to deter children from eating the electrochemical cell. Described are compositions and methods for preparing electrochemical cells with aversive coatings capable of conducting electricity through the coating.
Resumen de: US2025206976A1
A slurry composition for a non-aqueous secondary battery functional layer contains a particulate polymer having a glass-transition temperature within a specific range and a water-soluble polymer including a sulfo group-containing monomer unit in a proportion of 3 mass % or more.
Resumen de: US2025206956A1
The present disclosure relates to the technical field of carbon black materials, and particularly to a granular carbon black and a preparation method therefor, an electrode and a secondary battery. For the granular carbon black, particle size distribution of the granular carbon black ranges as follows: a weight percent of granular carbon black with a particle diameter less than 0.125 mm is equal to or less than 2%, a weight percent of granular carbon black with a particle diameter ranging from 0.125 to 0.85 mm is from 18% to 60%, and a weight percent of granular carbon black with a particle diameter more than 0.85 mm is from 40% to 80%; and a secondary particle diameter D50 of the granular carbon black ranges from 2.0 μm to 3.51 μm.
Resumen de: US2025210737A1
Various systems and methods are provided for a battery management system. In one example, the battery management system includes a battery data receiving unit communicatively coupled to sensors of a battery pack. Further the battery data receiving unit includes instructions stored on non-transitory memory that when executed cause the battery data receiving unit to collect raw data from the sensors of the battery pack in a first format and transmit the collected raw data to an electronic control unit for downstream processing into a second format.
Resumen de: US2025210714A1
A lithium secondary battery includes a positive electrode, a negative electrode, a separator, and a non-aqueous electrolyte. The positive electrode includes a positive electrode active material. The positive electrode active material includes lithium iron phosphate particles. A loading amount of the positive electrode is about 450 mg/25 cm2 to 740 mg/25 cm2. The non-aqueous electrolyte includes a lithium salt, an organic solvent, and an additive. The additive includes at least one selected from the group consisting of compounds represented by Formulas 1 to 3 below. The additive is included in the non-aqueous electrolyte in an amount of about 0.1 wt % to 3 wt %.wherein R1, R2, R3, R4, n, and m are as defined above.
Resumen de: US2025210726A1
A battery system comprises: a control unit and at least one battery, wherein the battery comprises: an electrical box and a plurality of battery cells, a detection unit and a first switching unit that are provided in the electrical box, the plurality of battery cells being connected to form a battery cell assembly; and the control unit is separately connected to the detection unit and the first switching unit for controlling, according to a detection signal collected by the detection unit, the first switching unit to cut off or connect an internal power transmission line and/or an external power transmission line of the battery cell assembly.
Resumen de: WO2025131124A1
A silicon-based negative electrode material and a preparation method therefor, and a lithium-ion battery. The silicon-based negative electrode material comprises a silicon material, a first shell layer coating the surface of the silicon material, and a second shell layer coating the surface of the first shell layer, wherein the first shell layer comprises an electrically conductive material, which has gaps; and the second shell layer comprises carbon. By means of forming a passion fruit-like structure having a silicon active material, a hollow electrically conductive network and a carbon shell, the problem of a short cycle life caused by the volume expansion of a silicon-based material is alleviated, and electron transfer inside a silicon-based composite material with a hollow carbon shell is effectively improved, thereby increasing the electrical conductivity and the number of cycles of a battery prepared from the silicon-based negative electrode material. By means of controlling the decomposition of a carbon source, the preparation method realizes multi-layer coating on a silicon-based material, and the process is simple and controllable, which is conducive to green, safe and large-scale production.
Resumen de: WO2025131010A1
The present application discloses a dry-process separator, comprising a porous substrate layer and a tear-resistant coating coated on at least one surface of the porous substrate layer. The tear-resistant coating comprises a tear-resistant slurry, and the tear-resistant slurry comprises a polymer, an inorganic material, a binder, and a solvent, wherein the inorganic material contains a hydroxyl group, and the binder contains a hydroxyl group. The inorganic material comprises at least one of a tubular structure and a sheet-shaped structure; when the inorganic material is of the tubular structure, the length-diameter ratio of the inorganic material is 5:1-10:1; and when the inorganic material is of the sheet-shaped structure, the thickness of the inorganic material is 0.6-1 μm.
Resumen de: WO2025131042A1
An oxide precursor, a preparation method therefor and a use thereof. The oxide precursor has a general chemical formula of Ni xCo yMn zAl dM eO n, wherein 0＜x≤0.96, 0≤y≤0.96, 0≤z≤0.96, 0≤d≤0.15, 0＜e≤0.015, 0.6≤n≤1.6, x+y+z+d＝1, y, z and d are not simultaneously 0, and the metal element M has an ionic radius of ≥0.08 nm; and the distribution uniformity of the metal element M in the oxide precursor is greater than or equal to 98.5%. The oxide precursor has the uniformly distributed doping element M with a large ionic radius, which is conducive to improving the structural stability of a positive electrode material, such that a lithium ion battery has an excellent discharge capacity and cycle performance.
Resumen de: WO2025129920A1
Provided in the present application are an electrode fabrication device, a stacking device and a battery production line. The electrode fabrication device comprises: a fixed platform; a cutting mechanism, which is arranged above the fixed platform; and a movable cutting platform, which is arranged on the fixed platform and may move back and forth along a straight line, and is suitable for bearing an electrode material strip, a fixing structure being provided on the movable cutting platform, wherein the movable cutting platform has a first position and a second position on the fixed platform, and the movable cutting platform may move the electrode material strip to a cutting position. In the structure described above, the movable cutting platform can directly drive an electrode sheet to move, so that it is unnecessary to provide a handling apparatus to handle the electrode sheet, saving space occupied by the electrode fabrication device, and an additional handling procedure is also eliminated, thereby improving the electrode fabrication efficiency. The movable cutting platform directly driving the electrode material strip to move avoids errors in the placement position of the handling apparatus, so that it is unnecessary to provide alignment stations and CCD cameras both upstream and downstream of the movable cutting platform, and an alignment procedure is also eliminated, improving the production takt time.
Resumen de: WO2025129909A1
A lithium ion battery electrolyte, a preparation method therefor, and a use thereof. The lithium ion battery electrolyte comprises a lithium salt, an organic solvent and an additive, the organic solvent comprising a nitrile solvent. The room temperature conductivity σ of the lithium ion battery electrolyte satisfies the following relational expression: 15≤(K×ε×γ)/μ≤30, K=0.02-0.07, ε being the dielectric constant, γ being the mass fraction of nitrile solvent in the lithium ion battery electrolyte, and μ being the viscosity of the lithium ion battery electrolyte at room temperature. The electrolyte can effectively inhibit reductive decomposition of a nitrile solvent, and has the characteristic of weak solvation binding energy, while having relatively high ionic conductivity at low temperatures, and exhibiting relatively good rapid-charging performance. Furthermore, a battery prepared based on said electrolyte has excellent low-temperature capacity retention rate, thereby effectively improving the safety, energy density, power, rate, cycle, and other attributes thereof.
Resumen de: WO2025129892A1
Provided are a battery module and an acquisition mechanism thereof. The battery module acquisition mechanism comprises a bracket and an acquisition group; the acquisition group comprises a series assembly; the series assembly comprises a first series group, a second series group, and a first connection member which are all mounted on the bracket; the first series group and the second series group each comprise a first series row and a second series row which are opposite to each other; the first series row and the second series row are used for serially connecting the corresponding battery cell groups; two first series rows or two second series rows of the first series group and the second series group are connected to one another by means of the first connection member.
Resumen de: US2025206622A1
An inorganic solid state electrolyte includes a metal cation selected from Li+, Na+, Mg2+, Ca2+, Zn2+, or Al3+, and a single phase crystalline solution with a first borate cluster anion and at least one second borate cluster anion different than the first borate cluster anion. The first borate cluster anion and the at least one second borate cluster anion have the same number of vertices, but a different number of hydrogens exchanged with a halogen atom selected from F, Cl, Br, I, or a combination thereof. The inorganic solid state electrolyte also has an elastic modulus of less than 15 GPa and supports a coulombic efficiency of metal or alloy anode charging/discharging greater than 99%.
Resumen de: US2025206629A1
A lithium-rich metal oxide and a preparation method thereof, a positive electrode plate, a battery cell, and a battery are described. The lithium-rich metal oxide includes a lithium-rich metal oxide core and residual lithium on a surface of the lithium-rich metal oxide core. Based on 100 wt % as a total mass of the lithium-rich metal oxide, a mass percent k of the residual lithium satisfies: k≤0.5 wt %, and a lithium-ion diffusion coefficient D of the lithium-rich metal oxide satisfies: D≥1.0×10−15 cm2/s. When applied to a battery cell, the lithium-rich metal oxide of this application improves performance of the battery cell.
Resumen de: US2025206613A1
Provided are an olivine-type cathode material, a method thereof, and a lithium-ion battery. The cathode material includes a matrix and a carbon coating layer. In a Raman spectrum, the cathode material has Raman responses in wavenumber regions of 940 cm−1 to 950 cm−1, 1330 cm−1 to 1350 cm−1, and 1580 cm−1 to 1610 cm−1, corresponding to three characteristic peaks A, B, and C, respectively. The cathode material satisfies: 0.01≤an average of I(A)/I(C)≤0.3 and 0.01≤an average of I(A)/I(B)≤0.3. The cathode material according to the present disclosure has a uniform carbon coating, and thus the cathode material has a high stability, a low specific surface area, a low volume resistivity, and a high pallet density. At the same time, when the cathode material is applied in a lithium-ion battery, the lithium-ion battery has excellent electrochemical performances.
Resumen de: US2025210711A1
An additive for a secondary battery and a lithium metal battery including the same are provided. The additive comprises an ionic liquid compound that includes a cation and an anion and is in a liquid state at an atmospheric pressure and at a temperature of 100° C. or less. The cation has a standard reduction potential lower than that of lithium cation (Li+) based on a standard hydrogen electrode (SHE) and has a structure in which an even number of aliphatic hydrocarbon groups having 3 or more carbon atoms identical to each other are bonded to a central element of the cation such that the cation has a symmetrical structure based on the central element. The additive is capable of suppressing dendritic lithium growth and induce uniform lithium growth on lithium metal thin films, thereby improving performance and life of the lithium metal battery.
Resumen de: US2025210710A1
Electrolytes and rechargeable lithium batteries including the same are disclosed. The electrolyte includes a non-aqueous organic solvent, a lithium salt, and an additive. The additive includes Compound 1 represented by Chemical Formula 1 and Compound 2 represented by Chemical Formula 2.
Resumen de: US2025210713A1
The electrolyte additive for a lithium-ion battery has a minimum electrostatic potential (ESP) of −151 KJ mol-1 to −100 kJ mol-1.
Resumen de: US2025210717A1
Described are an electrolyte for a lithium metal battery, and a lithium metal battery including the same, the electrolyte containing a first lithium salt containing a fluorosulfonyl group, a second lithium salt containing a trifluoromethanesulfonyl group, and a solvent containing a fluorosulfonyl group, wherein a molar ratio of the first lithium salt to the second lithium salt is 0.65:0.35 to 0.75:0.25.
Resumen de: US2025210651A1
A lithium secondary battery may include an electrode assembly including a positive electrode, an electrolyte, and a battery case including an internal space for accommodating the electrode assembly and the electrolyte. The positive electrode includes a positive electrode active material, and the positive electrode active material includes a lithium nickel-based oxide containing 50 mol % to 70 mol % of nickel among all metals excluding lithium. An electrolyte filling factor (EFF) index defined by Equation 1 is 1.52 to 1.88.EFF=RE×SUNCEquation1In Equation 1, RE is a mass of residual electrolyte contained in the lithium secondary battery after activation, SU is a ratio (SE/SC) of the volume (SE) of the electrode assembly and the volume (SC) of the lithium secondary battery, and NC is a capacity when the lithium secondary battery is discharged from 4.4 V to 3.0 V at 0.33 C at 25° C.
Resumen de: US2025210701A1
Provided is a composite solid electrolyte layer having excellent power performance and long-term cycle stability. An embodiment of the present invention provides a composite solid electrolyte layer including a solid electrolyte layer containing a solid electrolyte, an electron blocking layer disposed on at least one surface of the solid electrolyte layer, and a lithiophilic layer disposed on the electron blocking layer.
Resumen de: WO2025130682A1
A modified ternary positive electrode material applied to an all-solid-state battery. The modified ternary positive electrode material has a coated structure, comprising, in sequence from inside to outside, an inner core, an island-shaped inner coating layer, and a layered outer coating layer. The inner core is a ternary positive electrode material matrix, the island-shaped inner coating layer is crystalline LiaXbOc, and the layered outer coating layer is amorphous LiαYβOγ; the powder electronic conductivity of the material is 10-4-10-2S/cm. A preparation method for the modified ternary positive electrode material comprises: uniformly mixing the ternary positive electrode material matrix with an X-containing oxygen-containing compound, then performing high-temperature sintering processing, uniformly mixing the sintered product and a Y-containing oxygen-containing compound, and performing low-temperature sintering processing, to obtain a modified ternary positive electrode material which can be applied to an all-solid-state battery. Also disclosed is an all-solid-state battery. The inner coating layer and the outer coating layer of the modified ternary positive electrode material have ionic conductivity, which can promote the transmission of lithium ions between the positive electrode active material and a solid electrolyte, and reduce interface impedance.
Resumen de: WO2025131012A1
A positive electrode material, and a preparation method therefor and the use thereof. The positive electrode material comprises secondary particles formed by the agglomeration of primary particles, wherein the primary particles comprise an active material having a chemical formula of LiMz(MnxFe1-x)1-z(BO3)y(PO4)1-y, where M comprises at least one of Mg, Ti, Nb, Al, Ni and rare earth elements, 0.4≤x≤0.7, 0.0025≤y≤0.01, and 0≤z≤0.003; the mass percent of boron in the primary particles is 0.5-1%; and B-O bonds are present between adjacent primary particles. In the positive electrode material, an excess of boron is introduced into the active material, thereby resulting in the presence of B-O bonds between adjacent primary particles in the positive electrode material; and the fluxing effect of the B-O bonds can improve the compactness between the primary particles and reduce the distance between adjacent primary particles, which is beneficial for improving the compaction density of a positive electrode active layer prepared from the positive electrode material and enables the positive electrode material to have relatively high discharge capacity.
Resumen de: WO2025130647A1
Embodiments of the present application provide a battery pack, a liquid cooling system, a vehicle and an energy storage system. The battery pack comprises a case and a plurality of battery cells; the plurality of battery cells are accommodated in the case or a closed space is formed between the cells and the case; the battery cells each comprise a cell body and an electrical connector arranged on the cell body; a first flow channel is formed between two adjacent battery cells or between the battery cells and the inner wall of the case, and the first flow channel is used for accommodating a heat exchange working medium; at least part of each cell body is immersed in the heat exchange working medium; and the area of contact between each electrical connector and the heat exchange working medium is zero. Therefore, the risk of ionization of the heat exchange working medium can be reduced.
Resumen de: WO2025129827A1
The present application provides a battery module and a battery pack. The battery module comprises: a case provided with an accommodating space as well as a pressure relief opening and a first air inlet which are separately communicated with the accommodating space, wherein a pressure relief mechanism is arranged at the pressure relief opening, and an air inlet mechanism is arranged at the first air inlet; cells arranged in the accommodating space; and a first detection unit mounted on the case and used for implementing detection on a preset object, wherein the first detection unit is electrically connected to the pressure relief mechanism, the pressure relief mechanism opens the pressure relief opening when the first detection unit detects thermal runaway of the cells, and the air inlet mechanism opens the first air inlet when the pressure in the accommodating space is smaller than or equal to a pressure threshold.
Resumen de: WO2025129843A1
The present application discloses a stacking mechanism, a production line, and a stacked cell manufacturing method using the stacking mechanism. The stacking mechanism is used for stacking a stacking roll and electrode sheets to process same to form a cell. The stacking roll comprises a stacking section and a buffering section. The stacking mechanism comprises a stacking platform and a stretching assembly. The stacking platform is provided with a support surface for supporting the stacking section, and is configured to be capable of moving reciprocatingly in a first direction parallel to the support surface. The stretching assembly is used for guiding the buffering section to the stacking platform, and is configured to be capable of moving reciprocatingly in the first direction. The movement direction of stretching assembly is opposite to that of the stacking platform. The stacking mechanism and the production line of the present application can effectively increase the relative movement speed of the stacking platform and the stretching assembly, improve the stacking efficiency, ensure the quality of stacking, reduces the difficulty in motor model selection, and improve the stability of stacking operations.
Resumen de: WO2025130031A1
A busbar plate and a battery, which are used in the technical field of battery production and processing. The battery comprises the busbar plate. A plurality of welding traces (2) is formed on one side of the busbar plate so as to be combined with a winding core (3). The welding traces (2) are distributed in an array around the circumference of the busbar plate, and each welding trace (2) presents a smooth wavy curve.
Resumen de: WO2025130036A1
Embodiments of the present application provide a distance measuring apparatus and method, and a battery assembling device and method. The distance measuring apparatus comprises a photographing device, a processor and a calibration assembly, wherein the photographing device is configured to photograph a picture of a gap appearing during battery assembly, the processor is configured to process the picture to obtain the width of the gap in a first direction, and the calibration assembly is configured to cooperate with the processor to correct photographing parameters of the photographing device and enable the difference between a measured value of the gap and an actual value of the gap to be smaller than a preset value, wherein the measured value of the gap is the width of the gap in the first direction derived from the picture taken by the corrected photographing device and processed by the processor. The battery assembling device comprises the distance measuring apparatus.
Resumen de: US2025206610A1
The present invention relates to the working principle and production methods for the pre-expansion of sulfur and/or other chalcogenides such as selenium or tellurium, and/or a mixture of any two or more. The present invention further relates an electrode/cathode comprising sulfur and/or a mixture of sulfur allotropes, for example, crystalline, glassy, amorphous, and/or polymeric (e.g., β-, γ-, and/or ω-phasic) sulfur and/or a mixture of any two or more sulfur allotropes, wherein the sulfur is photonically/electronically/thermally pre-expanded to a state where it has a density equivalent to a metal sulfide, such as Li2S. The expansion is carried out before electrode/cathode fabrication for the realization of alkali and/or alkali earth metal/ion batteries, such as LiS batteries. The resulting pre-expanded chalcogenides such as sulfur has an artificially generated internal cavities/porosity in addition to an open/external porosity, wherein the internal cavities limits and/or compensates the expansion of sulfur further or expansion partially/negligibly during chemical/electrochemical reactions, such as lithiation or sodiation, with mono, di, and trivalent metal ions. A thus fabricated electrode/cathode comprising pre-expanded sulfur and/or chalcogenides allows precise control over density and volume fluctuations and withstands the chemical and electrochemical reactions that occur during battery operation. Additionally, leads to improved performance, and longevity and offers s
Resumen de: US2025206635A1
A method for preparing a lithium-ion battery cathode material includes implementing a Couette-Taylor reaction operation and a calcining operation. The Couette-Taylor reaction operation includes feeding a first reaction liquid and a second reaction liquid into a Couette-Taylor reactor to form a product stream including a cathode material precursor. The first reaction liquid is a multi-metal solution containing a nickel compound, a cobalt compound, and a manganese compound. The second reaction liquid is a lithium source metal solution containing a lithium compound. The cathode material precursor contains lithium elements. The calcining operation includes using a high-temperature tubular furnace to calcine the cathode material precursor to obtain the lithium-ion battery cathode material.
Resumen de: US2025206612A1
The present invention relates to a process for preparing a salt of bis(fluorosulfonyl)imide, preferably lithium bi(fluorosulfonyl)imide (LiFSI).
Resumen de: US2025206636A1
A method of preparing a positive electrode active material, a positive electrode and a rechargeable lithium battery are provided. The method of preparing the positive electrode active material includes mixing nickel-manganese-based composite hydroxide and a lithium raw material and subjecting them to primary heat treatment at about 200° C. to about 350° C. and secondary heat treatment at about 800° C. to about 1000° C.
Resumen de: US2025210707A1
A polymer electrolyte for a battery cell. The polymer electrolyte includes or substantially consists of a polymaleimide copolymer. The polymaleimide copolymer includes or substantially consists of first polymaleimide repeat units and second polymaleimide repeat units, wherein the first polymaleimide repeat units and the second polymaleimide repeat units are covalently bonded to one another.
Resumen de: US2025210740A1
A battery pack has a temperature detection unit that detects the temperature of a battery cell. The temperature detection unit is provided with a first temperature sensor that is attached to a central battery cell disposed at the center in a first direction among a plurality of battery cells, and a second temperature sensor that is attached to an end battery cell disposed at one end in the first direction among the plurality of battery cells. No temperature sensor is attached to an end battery cell disposed at the other end in the first direction among the plurality of battery cells.
Resumen de: US2025210720A1
In an electrolyte for lithium secondary batteries that contains a lithium salt and 4-fluorotoluene (1F-substituted aromatic solvent, 1-FAS) as a lithium-salt-non-dissociable fluorinated ether solvent and a lithium-dissociable ether solvent, the 4-fluorotoluene solvent suppresses the reaction of lithium-dissociable ether with a lithium metal anode and thus exhibits high flame retardancy, excellent ionic conductivity, and superior lifespan characteristics, a method of preparing the same, and a lithium secondary battery including the same.
Resumen de: US2025210705A1
A polymer containing a structural unit (A) having an anion moiety with an alkali metal ion as a counter cation and a structural unit (B) having a functional group with a function as an anion receptor.
Resumen de: US2025210709A1
An electrolyte for a rechargeable lithium battery includes a non-aqueous organic solvent; a lithium salt; a first additive represented by represented by Chemical Formula 1; and a second additive represented by represented by Chemical Formula 2:In addition, a rechargeable lithium battery including the electrolyte is also disclosed.
Resumen de: US2025210698A1
Processes for making sulfide-based solid electrolyte composites include mixing a lithium-containing material, a phosphorus-containing material, a sulfur-containing material, and a halogen-containing material in a solvent, removing the solvent, and then heat-treating the materials to form the sulfide-based solid electrolyte composites. The composites include an argyrodite component and second component, wherein each component has a unique x-ray diffraction pattern. The electrolyte composites may be incorporated into electrochemical cells, including solid-state batteries.
Resumen de: WO2025130636A1
An energy storage container (100) and an energy storage system (1000). The energy storage container (100) comprises a housing (10), wherein a battery compartment (20), an electrical compartment (30), and a liquid cooling unit (40) are arranged in the housing (10); and the electrical compartment (30) and the liquid cooling unit (40) are arranged on the same end side of the battery compartment (20) in a first direction (O). Such arrangement can effectively improve the space utilization ratio of the energy storage container (100); and additionally, a worker can inspect the electrical compartment (30) and the liquid cooling unit (40) on the same end side of the energy storage container (100), thereby effectively improving the convenience of on-site maintenance.
Resumen de: WO2025130864A1
A box and a battery cell module with same. The box is configured to store a battery cell, and the box comprises: a housing (10), wherein the housing (10) is provided with an accommodating cavity (11), a maintenance hole (12) is provided in the top of the housing (10), the maintenance hole (12) is in communication with the accommodating cavity (11), the accommodating cavity (11) is configured to store the battery cell, and the maintenance hole (12) is configured to correspond to the battery cell; and an upper cover (20) which is detachably arranged on the housing (10), wherein the upper cover (20) can cover the maintenance hole (12). Therefore, the problem of it being impossible to maintain a liquid cooling PACK and a battery cell module due to potting and adhesive bonding between a box lid and a box body is solved.
Resumen de: WO2025130928A1
The present application belongs to the technical field of batteries. Disclosed are a cylindrical battery assembly and an energy storage power supply. The cylindrical battery assembly comprises a plurality of cylindrical batteries, at least one electrical connecting sheet and at least one first insulating member. Each of the plurality of cylindrical batteries comprises end faces including a first end face and a second end face; the plurality of cylindrical batteries are electrically connected by means of the at least one electrical connecting sheet; and a part or all of each first insulating member in the at least one first insulating member is arranged between a plane where the first end face is located and a plane where the corresponding electrical connecting sheet is located, and each first insulating member is provided with first through holes, the first through holes being configured to provide connection spaces for the cylindrical batteries and the corresponding electrical connecting sheet. The cylindrical battery assembly of the present application can effectively improve an insulation protection effect on the cylindrical batteries, thereby reducing the probability of short circuits occurring during the usage of the cylindrical batteries, and further enhancing the safety.
Resumen de: WO2025130070A1
A secondary battery cell, a secondary battery and an electric device. The secondary battery cell comprises a cylindrical casing, an electrode assembly, a first end cover assembly and a second end cover assembly, wherein the cylindrical casing is provided with an accommodating cavity and a first opening and a second opening which are communicated with the accommodating cavity; the electrode assembly is arranged in the accommodating cavity, the first end cover assembly covers the first opening, and the second end cover assembly covers the second opening; and the first end cover assembly comprises a first pressure relief mechanism, and the second end cover assembly comprises a second pressure relief mechanism. The secondary battery cell further comprises an electrolyte, wherein the electrolyte comprises a solvent, the solvent comprises dimethyl carbonate, and the mass percentage content of the dimethyl carbonate in the solvent is greater than or equal to 50 wt%. The secondary battery cell satisfies that (S1+S2)/C0 is greater than or equal to 2.5 mm2/Ah. The secondary battery has high energy density, good cycle performance and high reliability.
Resumen de: WO2025129983A1
A current collecting plate and a battery. The current collecting plate comprises a current collecting plate body (100), the current collecting plate body comprising a first current collecting region (10) and a second current collecting region (20), the second current collecting region (20) being arranged around at least part of the first current collecting region (10); and further comprising a plurality of pressure relief grooves (101) located in the first current collecting region (10) and arranged at intervals in a circumferential direction, wherein each pressure relief groove (101) comprises a first groove tube (1011), a second groove tube (1012) and a groove body (1013), two ends of the groove body (1013) being in communication with the first groove tube (1011) and the second groove tube (1012), respectively, the groove body (1013) being in the shape of an arc, and the center of a circle of the arc where the groove body (1013) is located being located on the side of the groove body close to the second current collecting region (20).
Resumen de: WO2025129772A1
An electrode sheet slitting system, comprising an electrode sheet conveying device, which is used for driving an electrode sheet (8) to be conveyed; and a laser cutting device (1), which is configured to be capable of cutting the electrode sheet which is conveyed to a slitting position so as to slit the electrode sheet into a plurality of sub-electrode sheets. Also provided are a control method for the electrode sheet slitting system and a laser focusing method for the electrode sheet slitting system. According to the electrode sheet slitting system, the laser cutting device is used to replace metal cutting tools to cut the electrode sheet, so that the laser cutting device does not need to be frequently maintained, and shutdown is not needed, thus improving the production efficiency.
Resumen de: US2025206562A1
An apparatus for stacking monocells for producing electrical energy storage devices, each consisting of electrode films, and at least one separator interposed between them. The apparatus includes a transport member which receives a stack of monocells and a collection device provided with a support member movable along a functional axis between a collection position, in which it is within the overall dimensions of one of the monocells, and a rest position, in which it is outside the overall dimensions of that monocell, and a movement member selectively movable, independently of the support member, along a stacking axis between a support position, in which it cooperates with the support member, and at least one release position, in which it positions the monocells, in cooperation with the transport member.
Resumen de: US2025206186A1
A method and apparatus for equalizing a battery pack, a vehicle, and a storage medium are provided. The method includes: determining whether a current battery pack meets a predetermined offline equalization condition; determining, in response to the current battery pack meeting the predetermined offline equalization condition, a target cell to be equalized in the current battery pack, an equalization time length of the target cell, and a periodic wake-up duration; and equalizing the target cell based on the equalization time length of the target cell, controlling a battery management system to enter a sleep mode, obtaining a duration for which the battery management system is in the sleep mode, waking up the battery management system in response to the duration reaching the periodic wake-up duration, and re-determining whether the current battery pack meets the predetermined offline equalization condition.
Resumen de: US2025206185A1
The control device includes a control unit that controls power supply from a main battery of the vehicle to a sub battery, and a calculation unit that calculates an estimated value of a full charge capacity of the main battery. When the error between the full charge capacity and the estimated value is larger than the predetermined value, the control unit calculates a power supply duration in which the power supply of the sub-battery to the load continues while the power supply is stopped, and a required time for eliminating the polarization of the main battery, and stops the power supply when the power supply duration is equal to or longer than the required time. The calculation unit calculates a voltage after a required time has elapsed since the power supply is stopped. After the voltage is calculated, the control unit resumes the power supply.
Resumen de: US2025206152A1
A vehicle includes a vehicle body, a battery, and a sealing assembly. The sealing assembly is disposed between the vehicle body and the battery. The sealing assembly includes a sealing plate and a sealing component. The sealing plate is fixed and connected to the battery, and the surface of the sealing plate away from the battery has a mounting plane. The sealing component is disposed on the mounting plane and disposed between the vehicle body and the sealing plate. The vehicle body and the battery define a passenger compartment, or the vehicle body and the sealing assembly define a passenger compartment.
Resumen de: US2025210687A1
An apparatus for manufacturing a battery cell includes an electrode reel, a separator reel, a table, a pair of separator guides, and a pair of upper nozzles. An electrode sheet on which a plurality of electrodes is formed is configured to be unwound from the electrode reel. A separator sheet is configured to be unwound from the separator reel. The separator sheet is configured to be folded when the electrode is placed, to cover the electrode and to being-stacked with the electrode. The electrode and the separator sheet are placed to overlie the table. The pair of separator guides are configured to guide a folding direction of the separator sheet. The pair of upper nozzles are configured to apply an adhesive to at least a part of the separator sheet passing between the pair of separator guides.
Resumen de: US2025210697A1
A composite solid-state electrolyte, a method of preparing the same, and a lithium battery including the same. The composite solid-state electrolyte includes a first solid-state electrolyte including a cubic garnet phase and a pyrochlore phase, and a second solid-state electrolyte including a glass phase, and a volume of the first solid-state electrolyte is greater than that of the second solid-state electrolyte, based on a total volume of the composite solid-state electrolyte.
Resumen de: US2025210751A1
This application provides a battery box, which includes: a heat exchange plate and a lower frame body located on the heat exchange plate. The lower frame body includes edge beams and internal beams, the edge beams forming a circumferential closure opened in an up-down direction, the edge beams and the heat exchange plate together forming an accommodating space with an upward opening, and the internal beams located inside the accommodating space and divide the accommodating space into sub-accommodating spaces for placing battery modules. The heat exchange plate is configured to support the battery modules and exchanges heat with batteries of the battery modules, and a bottom plane of an internal beam is partly in contact with a top plane of the heat exchange plate in the up-down direction.
Resumen de: US2025210700A1
An secondary battery includes a cathode layer, an anode layer having an anode current collector and an anode active material layer on the anode current collector,a lithium metal layer or a lithium alloy layer between the anode current collector and the anode active material layer, wherein the lithium metal layer or the lithium alloy layer has a thickness in a range of about 10 micrometers to about 60 micrometers, anda solid electrolyte layer between the cathode layer and the anode layer, wherein the solid electrolyte is an oxide, phosphate, borate, sulfate, an oxynitride, or a combination thereof.
Resumen de: WO2025130459A1
Embodiments of the present application relate to a battery heat exchange device, comprising a first header, a first interface, a second header, a first heat exchange tube, and at least one second heat exchange tube, wherein a first sub-tube is separated from a second sub-tube; the first header comprises the first sub-tube and at least one second sub-tube; the first interface is communicated with a tube cavity of the first sub-tube; the width direction of the first heat exchange tube and the width direction of the second heat exchange tube extend in a first direction, the first heat exchange tube is communicated with the first sub-tube and the second header, and the second heat exchange tube is communicated with the second sub-tube and the second header; the second heat exchange tube comprises N first channels, N>3, and in the first direction, it is defined that the first one among the first channels is a first sub-channel and the Nth one among the first channels is an Nth sub-channel, wherein an Mth sub-channel is arranged between the first sub-channel and the Nth sub-channel, the flow cross-sectional area of the first sub-channel is larger than that of the Mth sub-channel, and the flow cross-sectional area of the Mth sub-channel is larger than that of the Nth sub-channel. The battery heat exchange device can enhance the battery heat exchange effect.
Resumen de: WO2025130654A1
Disclosed in the present invention is a method for suppressing voltage attenuation of a nickel-manganese-based layered oxide material with anionic redox by utilizing Ni3+. The sodium content of the material is adjusted, Ni3+ is introduced into the material to serve as an Mn4+/Mn3+ redox barrier, and redox of Mn4+/Mn3+ is replaced with redox of Ni3+/Ni2+, so that the voltage attenuation of the nickel-manganese-based layered oxide material with anionic redox can be effectively suppressed without sacrificing the capacity density of the material and increasing the synthesis cost of the material.
Resumen de: WO2025130906A1
A jig, comprising a base (11), a carrying mechanism (12), two clamping mechanisms (13), and flipping mechanisms (14). The carrying mechanism (12) is arranged on the base (11) and used for fixing a top cover (22). The two clamping mechanisms (13) are located on two sides of the carrying mechanism (12) in a first direction, and the clamping mechanisms (13) are used for clamping battery cells (21). The flipping mechanisms (14) are arranged on the base (11) and can drive the two clamping mechanisms (13) to flip between a first position and a second position. The rotation axes of the clamping mechanisms (13) are parallel to a second direction, and the second direction is perpendicular to the first direction. When the two clamping mechanisms (13) are both in the first position, top surfaces (211) of the two battery cells (21) are opposite to each other, and the top cover (22) is located between the top surfaces (211) of the two battery cells (21); and when the flipping mechanisms (14) drive the two clamping mechanisms (13) to flip from the first position to the second position, the side surfaces of the two battery cells (21) fit against each other to form a battery cell group (23), and the top surfaces (211) of the two battery cells (21) are oriented in the same direction and are opposite to the top cover (22). The jig is capable of executing a cell alignment process immediately after the completion of an adapter welding process, thereby shortening the production cycle of batteries
Resumen de: WO2025130022A1
Provided in the present application are an energy storage device charging control method and a related apparatus. The method comprises: determining a corresponding first usage device by means of a destination of the current travel in travel information; determining predicted power consumption of the first usage device on the basis of meteorological information in the travel information; then, on the basis of the travel information and the predicted power consumption of the first usage device, determining a first charging amount of a first energy storage battery corresponding to the first usage device; and finally, on the basis of the first charging amount of the first energy storage battery, controlling an onboard charger to charge the first energy storage battery. In this way, the efficiency of allocating energy storage electric quantity corresponding to a control system is improved.
Resumen de: WO2025129756A1
Provided in the present invention are a pouch battery and a method for manufacturing a pouch battery. The pouch battery comprises a battery cell, an aluminum laminated film packaging structure and an adhesive layer, wherein the aluminum laminated film packaging structure comprises a main body portion and an edge sealing portion; the main body portion is provided with a cavity, and a battery cell body is received in the cavity; and the edge sealing portion is connected to an outer edge of the main body portion, encircles the main body portion circumferentially, and seals the cavity. An outer edge of the edge sealing portion comprises a first side edge and a pressure relief area, wherein part of a tab passes through the first side edge, part of the pressure relief area is covered by the adhesive layer, and the remaining part of the pressure relief area is exposed outside the adhesive layer. In the pouch battery of the present invention, a pressure relief portion is created at an outer edge of the aluminum laminated film packaging structure, thereby reducing the risk of explosion of the pouch battery.
Resumen de: WO2025129792A1
The present invention relates to the technical field of batteries, and provides a battery cell casing comprising a stepped explosion-proof valve, and a manufacturing process therefor. The battery cell casing comprising the stepped explosion-proof valve comprises: a casing, an explosion-proof valve mounting hole being formed in a side surface of the casing; and an explosion-proof valve comprising a valve body, a skirt edge being provided along the edge of the valve body, and a first step portion being provided on the skirt edge, wherein by means of the first step portion, the skirt edge overlaps the outer plane of the casing where the explosion-proof valve mounting hole is located, or the inner plane of the casing where the explosion-proof valve mounting hole is located overlaps the first step portion of the skirt edge, and the first step portion and the side surface of the casing where the explosion-proof valve mounting hole is located are fixed by welding. In the present invention, the skirt edge of the explosion-proof valve is configured to be of a step-shaped structure, so that the strength of the connection position of the explosion-proof valve and the casing is increased, the thickness of the side surface of the casing where the explosion-proof valve is located does not need to be wholly increased, and the machining difficulty and material costs of the whole battery cell casing are reduced.
Resumen de: US2025206191A1
Embodiments include methods and systems for charge balancing in a battery system having a string of battery packs that each include a plurality of battery cells. Aspects include obtaining electrical parameters for each of the plurality of battery cells and calculating a battery pack balance point for each of the battery packs in the string. Aspects also include instructing a cell balancing system to execute a cell charge balancing routine to balance each of the plurality of battery cells of each battery pack to the battery pack balance point corresponding to the battery pack, calculating a string balance point for the string of battery packs based on the battery pack balance points, and instructing the cell balancing system of each battery pack to balance the plurality of battery cells of the battery pack to the string balance point.
Resumen de: US2025206189A1
A computer system for controlling an energy storage system with heterogenous battery packs is provided. The system, using a processing circuitry, obtains pack-specific minimum and maximum allowed operating voltages for each battery pack; determines joint ESS-specific minimum and maximum voltage limits satisfying each of the respective pack-specific minimum and maximum allowed operating voltages for all of the battery packs; obtains actual state of charge, SoC, values for each battery pack; determine rescaled SoC values by scaling the actual SoC value for a battery pack to a range defined by an estimated SoC value of the battery pack at the ESS-specific minimum and maximum voltage limits, and controls the ESS using the rescaled SoC values for the battery packs.
Resumen de: US2025206193A1
A method of controlling a battery having a plurality of cells is executed by a processor. The method includes detecting voltages of the plurality of cells; calculating a voltage difference between a highest voltage and a lowest voltage of the plurality of cells based on the detected voltages; and executing an output restriction on the battery when the voltage difference is equal to or greater than a predetermined first voltage difference threshold value.
Resumen de: US2025206126A1
An underbody for a vehicle, can include at least one battery module, a tray member fastened to a lower portion of a vehicle body frame and including a receiving portion having a structure with an open lower surface to accommodate the at least one battery module, a cover member to cover the open lower surface of the receiving portion, and a thermal interface material interposed between the at least one battery module and the cover member. The cover member includes a flow path to circulate a refrigerant fluid.
Resumen de: US2025206187A1
A method for operating a traction battery for a motor vehicle, which can be discharged down to a predefined minimum charging state during operation of the motor vehicle and can be charged up to a predefined maximum charging state in a charging operation, wherein, the minimum charging state is increased and/or the maximum charging state is decreased if a limit value is reached by the value of a predefined parameter which describes a variable property of the traction battery.
Resumen de: US2025210695A1
An anode-solid electrolyte sub-assembly for a solid secondary battery, and a method of manufacturing the same, wherein the anode-solid electrolyte sub-assembly includes an anode current collector, a mixed ionic-electronic conductor (MIEC) structure, the mixed ionic-electronic conductor structure between the anode current collector and a solid electrolyte. The mixed ionic-electronic conductor has a plurality of open portions that extend in a direction from the anode current collect towards the solid electrolyte and at least one end of an open portion of plurality of open portions is open. A plurality of lithiophilic metal material particles are disposed on the mixed ionic-electronic conductor structure, an interlayer is disposed between the mixed ionic-electronic conductor structure on which the lithiophilic metal material particles are disposed and the solid electrolyte. The interlayer includes an interlayer material comprising a carbon-containing anode compound; lithium; a mixture of a carbon-containing anode compound and at least one of a second metal or a metalloid; a composite of a carbon-containing anode compound and at least one of a second metal or a metalloid; or a combination thereof.
Resumen de: US2025210689A1
A lithium secondary battery includes: a positive electrode; a negative electrode; an electrolyte; and a separator. The positive electrode includes first and second positive electrode active materials having different average particle diameters (D50). The average particle diameter (D50) of the first positive electrode active material is larger than that of the second positive electrode active material. The first and second positive electrode active materials include single-particle type particles. The negative electrode includes a silicon-based negative electrode active material, and the lithium secondary battery has an IRF value of about 1 to 1.4, defined by Equation 1IRF=RpRn,wherein Rn refers to an interfacial resistance of the negative electrode measured after 100 cycles of charge/discharge are performed, and Rp refers to an interfacial resistance of the positive electrode measured after 100 cycles of charge/discharge are performed.
Resumen de: US2025210704A1
New block polymers are described, as well as processes for preparing them using a ring-opening copolymerisation technique. Also described are electrolytes, cathodes and batteries comprising the polymers.
Resumen de: US2025210746A1
An electrical system comprises inverters, electrical circuitry, and a ECU. The electrical circuit includes a battery and a capacitor. When the temperature rise start condition for starting the temperature rise of the battery is satisfied, ECU performs frequency control for controlling the inverter so that the current frequency of the alternating current generated by the inverter becomes a set frequency related to the resonant frequency of the electric circuitry. ECU performs an update process of updating the set frequency so that the ripple of the current flowing through the electric circuitry increases when the frequency control is executed.
Resumen de: WO2025130445A1
A power battery top cover structure and a power battery. The power battery top cover structure comprises a top cover sheet (1), poles (2), and upper plastic parts (3), wherein two pole holes (11) are formed at an interval in the top cover sheet (1), two poles (2) are provided and respectively pass through the two pole holes (11), a pole groove (21) is circumferentially formed in the outer wall of each pole (2), knurling (210) is pressed at the bottoms of the pole grooves (21), two upper plastic parts (3) are provided and are respectively sleeved on the two poles (2), the upper plastic parts (3) extend into the corresponding pole grooves (21), the inner walls of the upper plastic parts (3) abut against the knurling (210), and the bottoms of the upper plastic parts (3) abut against the top cover sheet (1).
Resumen de: WO2025130354A1
Disclosed in the present invention is a rapidly-formed thermal-runaway-preventing material. The thermal-runaway-preventing material comprises the following components in percentages by mass: 71-95% of a heat-absorbing material, 1.5-12% of polyvinyl alcohol, 0-1% of a long-chain alkyl diacid and 3-16% of a UV curing packaging resin. The thermal-runaway-preventing material can be designed according to different battery structures, such that a piece of the thermal-runaway-preventing material can be conveniently placed between battery packs, or can be placed every certain number of battery packs. The thermal-runaway-preventing material of the present invention has a high enthalpy value of heat absorption, can generate a chemical reaction between 90-400°C and actively absorb heat. Generally, the temperature is rapidly increased after thermal runaway of a battery pack, such that the temperature of the thermal-runaway-preventing material reaches 90ºC or above, and the material can spontaneously absorb heat and be decomposed at this moment, thereby forming a continuous heat absorption effect (the enthalpy of heat absorption of the heat absorption material ＞ 1200 J/g), so as to lower the temperature of the runaway battery pack. In addition, after the preventing material is completely decomposed, a porous structure can be formed on the surface, and the material becomes a superior thermal insulation material, thereby preventing heat from being transferred to adjacent batteries, prev
Resumen de: WO2025130308A1
Provided in the present application are a winding structure and a battery. The winding structure comprises a positive electrode sheet, a negative electrode sheet, and a first separator and a second separator which are arranged between the positive electrode sheet and the negative electrode sheet; the centerline of the winding structure in the width direction is the midline of the winding structure, the position where the positive electrode sheet is bent for the first time is a first bending area, the area where the negative electrode sheet is bent for the first time is a second bending area, and the first bending area and the second bending area are located on the two sides of the midline; and a second inner paste coating layer located in the first bending area is a deactivated layer, and the deactivated layer has a lower content of deintercalatable lithium than other second inner paste coating layers. In this way, during the charging of a battery comprising the winding structure, the amount of lithium ions deintercalated from the deactivated layer to an end of the negative electrode sheet located at the winding center of the winding structure is reduced, thereby slowing down lithium plating at the end of the negative electrode sheet, thus reducing the possibility of a short circuit in the battery due to lithium plating, and improving the safety of the battery during use.
Resumen de: WO2025129815A1
The present invention relates to the file of solid-state electrolyte materials of lithium ion batteries, and in particular to a solid electrolyte material, a preparation method, an electrolyte layer, and a lithium ion battery. The general chemical formula of the solid-state electrolyte material is: LiaPbCmSdOnClf, wherein 5.4≤a≤6.1, 0.9≤b≤1, 0
Resumen de: WO2025129820A1
Disclosed are a cover plate assembly and a battery. The cover plate assembly comprises a cap and a connection assembly. The connection assembly comprises a connection piece, and the material of the connection piece being aluminum; the cap is disposed on the connection piece, and the cap comprises a core material and an outer layer located outside the core material, the core material being welded to the connection piece by means of the outer layer; the material of the core material includes copper, and the material of the outer layer includes nickel.
Resumen de: WO2025129787A1
A composite current collector for an anode-free lithium metal battery and a preparation method therefor, and an anode-free lithium metal battery. The composite current collector for an anode-free lithium metal battery comprises: a base film; an electrically conductive layer, which is arranged on at least one side surface of the base film; and a surface modification layer, which is arranged on the side surface of the conductive layer that is away from the base film, wherein the material of the surface modification layer comprises a hydroxyapatite-based compound. By means of constructing, on the surface of a composite current collector, a surface modification layer including a hydroxyapatite-based composite, the repulsion of an anode to free-state anions is effectively relieved, such that sufficient anion derivatives are generated at an electrolyte-anode interface to stabilize the electrolyte-anode interface; and the generated stable interface can reduce desolvation energy barriers of lithium ions, accelerate the transmission dynamics of the interface, and effectively suppress the generation of "dead lithium" and lithium dendrites, thereby prolonging the cycle life of a lithium metal battery.
Resumen de: US2025206184A1
An electrified vehicle (EV) includes a battery pack, one or more sensors, and a vehicle controller. The battery pack includes a plurality of battery cells and is operable to provide at least a portion of propulsion power. The vehicle controller is configured to charge and discharge the battery pack according to power limits defined by output of a battery impedance model. The battery impedance model associates battery impedance values with frequency-dependent polarization impedance values representing diffusion states of the battery cells, and receives measured parameters from the one or more sensors indicative of the frequency-dependent polarization impedance values of the battery pack.
Resumen de: US2025206175A1
A control system for charging an aircraft, comprising: a battery pack, an input device configured to enable a user to select between different charging modes, two main contactors connecting the battery pack to an electric propulsion unit (EPU) load and an auxiliary load, a EPU load contactor connecting the battery pack to the EPU load and a controller configured to receive the selected charge mode and control the contactors, keep the two main contactors open upon receiving a user selection to charge in a first mode, close the two main contactors and keep an EPU load contactor open upon receiving a user selection to charge in a second mode, and close the two main contactors and the EPU load contactor upon receiving a user selection to charge in a third mode.
Resumen de: US2025206188A1
The battery ECU updates the frequency data of the area using the temperature TB and SOC of the battery as parameters, and estimates the degradation degree (degradation amount) from the frequency data and the degradation coefficient that increases as the temperature TB increases. The degradation degree is stored in the control ECU. When the battery ECU is replaced, the battery ECU acquires the degradation level from the control ECU and creates a new frequency based on the degradation level. The new frequency data is created as frequency data F of an area having a high temperature TB and a large SOC, and the other area is set to a NULL.
Resumen de: US2025205527A1
A fire extinguishing system for an electric vehicle includes a charger configured to supply electricity to the electric vehicle and charge a battery mounted on the electric vehicle, a charger control unit configured to receive status information of the electric vehicle or the charger from the electric vehicle or the charger and determine whether the electric vehicle is on fire, and a fire extinguishing device configured to receive a fire extinguishing signal from the charger control unit and extinguish a fire occurring in the electric vehicle.
Resumen de: US2025205525A1
A fire extinguishing structure of battery module is disclosed and includes a housing, a battery pack, an airflow guiding channel, a fan and an intumescent insulation layer. The accommodation space is in communication between the inlet and the outlet. The battery pack is accommodated in the accommodation space. The airflow guiding channel is configured to guide an airflow along an airflow direction from the inlet to the outlet. The fan is configured to generate the airflow flowing to dissipate heat generated by the battery pack. The intumescent insulation layer is arranged on a side wall of the airflow guiding channel, and configured to react and expand under a reaction temperature to seal the airflow guiding channel. An included angle formed between a normal direction of the intumescent insulation layer and the airflow direction is not less than 90 degrees.
Resumen de: US2025210723A1
A metal-hydrogen battery is presented. The battery includes a bridgeless CPV superstack having a number K of units, each unit including a first layer and a second layer, wherein the first layer includes a number L/2 of intermediate anode-cathodes, and wherein the second layer includes an end anode and an end cathode separated by L/2−1 intermediate anode-cathodes; a pressure vessel that encloses the bridgeless CPV superstack; and electrolyte within the pressure vessel. A bridgeless CPV superstack includes K units, each unit including a first layer and a second layer, wherein the first layer includes a number L/2 of intermediate anode-cathodes, and wherein the second layer includes an end anode and an end cathode separated by L/2−1 intermediate anode-cathode.
Resumen de: US2025210739A1
A battery housing structure capable of more effectively detecting expansion of a battery is provided.A battery housing structure according to the present invention includes a housing body of a battery, and the housing body has different ease of deformation with respect to expansion of the battery on a first main surface side of the battery and on a second main surface side of the battery.
Resumen de: US2025210688A1
An apparatus for manufacturing an electrode assembly formed in a stack structure of an electrode plate and a separator includes a separator supplier configured to supply the separator, a folder that moves with respect to a stack table to fold the separator on the stack table, a guide provided on a movement path of the separator from the separator supplier to the folder to guide movement of the separator, a compensator that is movable to compensate for a change in length of the movement path of the separator, and a controller configured to control movement of the compensator based on structural parameters for a structure of the apparatus and motion parameters for a motion of the folder to compensate for the change in length of the movement path of the separator.
Resumen de: US2025210724A1
A lithium secondary battery having high energy density and excellent lifetime characteristics includes: (1) a positive electrode containing a positive electrode active material in a single particle form having a D50 of 5.5 μm to 8 μm; (2) a negative electrode containing a first negative electrode active material having a Si—C composite; and (3) an electrolyte. The irreversible capacity per unit area of the negative electrode is smaller than an irreversible capacity per unit area of the positive electrode.
Resumen de: US2025210712A1
Disclosed are an electrolyte for lithium secondary batteries and a lithium secondary battery including the same. The electrolyte for lithium secondary batteries includes: a lithium salt; a non-aqueous organic solvent; a compound represented by Formula 1 disclosed in the specification; and a compound represented by Formula 2 disclosed in the specification.
Resumen de: US2025210669A1
A polymer includes an ester polymer, and the polymer is applied to battery cells. The ester polymer is made into a sheet structure. The sheet structure undergoes dynamic frequency scanning testing at (Tm+20)° C. to obtain an elastic modulus G′-energy loss modulus G″ curve, where a slope of the elastic modulus G′-energy loss modulus G″ curve is K, 1
Resumen de: WO2025130821A1
The present application discloses a battery cell, a battery, and an electrical device. The battery cell comprises a housing and an exhaust assembly, the housing having a wall portion. The exhaust assembly is disposed on the wall portion, the exhaust assembly comprising a one-way valve and/or a gas-permeable membrane assembly, the gas-permeable membrane assembly comprising a gas-permeable membrane, and the exhaust assembly discharging gas in the housing. A first weak strength area is disposed on the wall portion, the first weak strength area being arranged along a circumferential direction of the exhaust assembly. By means of this type of configuration, gas in the battery cell housing can be discharged out of the housing in a timely manner, and when the internal pressure or temperature of the battery cell reaches a threshold value, the pressure in the battery cell can be released.
Resumen de: WO2025130218A1
A battery (100), a battery module (1000), and a vehicle. The battery (100) comprises a housing (10), a battery cell (20), and two connecting pieces (30). At least a partial region of the housing (10) is electrically conductive. The battery cell (20) is accommodated in the housing (10). The two connecting pieces (30) are electrically connected to two electrodes (22) of the battery cell (20), respectively.
Resumen de: WO2025130219A1
A battery case (10), comprising: a shell (11), the shell (11) being provided with an inner cavity (111) and two through holes (112) in communication with the inner cavity (111); two connecting pieces (12); and two sealing members (13). One end of a first connecting piece (121) is located in the inner cavity (111), the other end of the first connecting piece (121) passes through a first through hole (1121) to extend out of the shell (11), one end of a second connecting piece (122) is located in the inner cavity (111), and the other end of the second connecting piece (122) passes through a second through hole (1122) to extend out of the shell (11); and the two sealing members (13) are both located outside the shell (11), each sealing member (13) is respectively sleeved on the outer side of the corresponding connecting piece (12), the outer edge of each sealing member (13) is further respectively fixed to the shell (11), and each sealing member (13) is configured to shield a gap between the corresponding connecting piece (12) and the corresponding through hole (112). A battery (100) comprising the battery case (10), and an electric device are provided.
Resumen de: WO2025130257A1
A positive electrode active material, and a preparation method therefor and a use thereof. The chemical formula of the positive electrode active material is Li1+aNa xPyNi0.5+bMn1.5+cMzOd, wherein -0.1≤a≤0.2, -0.2≤b≤0.2, -0.2≤c≤0.2, 3.8≤d≤4.3, 0
Resumen de: WO2025130012A1
A single-crystal ternary positive electrode material and a preparation method therefor. The preparation method comprises: firstly, mixing a first-stage lithium source with a single-crystal ternary precursor until uniform, and conducting first-stage low-temperature sintering, so as to obtain a first sintered material; then, mixing a second-stage lithium source with the first sintered material until uniform, and conducting second-stage low-temperature sintering, so as to obtain a second sintered material; and sintering the second sintered material at a high temperature, so as to obtain a single-crystal ternary positive electrode material, wherein the first-stage lithium source is lithium carbonate, the sintering temperature of the first-stage low-temperature sintering is 600-800ºC, the sintering temperature of the second-stage low-temperature sintering is 600-800ºC, and the sintering temperature of the high-temperature sintering is 900-1000ºC. In the present application, lithium carbonate is used as the first-stage lithium source, and the sintering process is divided into three stages, thereby allowing for a more sufficient reaction of lithium carbonate with the single-crystal ternary precursor; therefore, the defect of low activity of lithium carbonate is favorably avoided, and a ternary positive electrode material with a lower alkali content is obtained.
Resumen de: WO2025129788A1
A composite current collector and a preparation method therefor, and an electrode sheet and a secondary battery. The composite current collector comprises: a base film; a transition layer, which is arranged on at least one side surface of the base film, wherein the transition layer is made of any one of metal niobium, metal tantalum, a niobium alloy, a tantalum alloy, a niobium-based compound and a tantalum-based compound, or a combination of at least two thereof; and an electrically conductive layer, which is arranged on the side surface of the transition layer that is away from the base film. A transition layer having good compactness, stability and corrosion resistance is provided between the base film and the electrically conductive layer, which can improve the adhesive force between the base film and the conductive layer, reduce the formation of holes in the electrically conductive layer, and resist the erosion of an electrolyte and a high-temperature environment, thereby improving the charging and discharging cycle performance of a battery based on the composite current collector; moreover, the provision of the transition layer avoids the thermal runaway of the battery generated by the formation of a closed loop due to the conduction of a positive-electrode current collector and a negative-electrode current collector, thereby improving the safety performance of the battery.
Resumen de: WO2025129779A1
Disclosed are a nano silicon-carbon composite material, a preparation method therefor, and a use thereof. The nano silicon-carbon composite material comprises co-agglomerated nano silicon particles and nano carbon particles. The mass ratio of the nano silicon particles to the nano carbon particles is (45-60):(40-55). The nano silicon particles have an average particle size of 1-50 nm and a crystallite grain size of 1-10 nm. The nano silicon particles have varied crystal orientations and are freely combined with the nano carbon particles. In the nano silicon-carbon composite material, the nano silicon particles and the nano carbon particles are uniformly dispersed, and the particle size of the nano silicon particles is small. Moreover, due to the dispersion of the nano carbon, the phenomenon of agglomeration between the nano silicon particles can be reduced. When the composite material is applied to negative electrode materials and batteries, the phenomenon of electrochemical sintering can be effectively mitigated.
Resumen de: US2025205526A1
A battery pack includes at least one battery module; and a pack case including a pack tray having an open top and an internal space in which the battery module is received, and a pack cover coupled to top of the pack tray, wherein the pack cover includes a bottom cover having a valve mounting hole which is open in a preset region and disposed on the pack tray; a top cover having a flow channel region which forms a movement path of cooling water and disposed on an upper surface of the bottom cover; and a valve which is rotatably mounted in the valve mounting hole in a clockwise or counterclockwise direction, and configured to supply the cooling water in the flow channel region to the internal space of the pack tray or stop the supply.
Resumen de: US2025205764A1
The present invention relates to a rolling roll and an electrode rolling device comprising the same. The rolling roll according to one example of the present invention comprises a rotating shaft, a pair of roll members mounted apart from each other at a predetermined interval on the rotating shaft, and an induction heating roll disposed between the pair of roll members, mounted on the rotation shaft, and including an induction coil provided to be inductively heated upon rotation of the rotating shaft, and a main body surrounding the induction coil.
Resumen de: US2025208675A1
A computer system having processing circuitry to handle a battery arrangement is provided. The battery arrangement comprises a first battery cell and a cell monitoring unit. The cell monitoring unit is configured to monitor the first battery cell. The processing circuitry is configured to obtain by the cell monitoring unit, a first indication indicative of an estimated or measured temperature of the first battery cell. The processing circuitry is configured to, based on the estimated or measured temperature of the first battery cell in relation to a preferred temperature range of the first battery cell, determine whether or not to transmit a first wake up signal to a battery control module. The first wake up signal is arranged to indicate to the battery control module to trigger a thermal management function for the battery arrangement.
Resumen de: US2025209473A1
An information processing apparatus includes a processor configured to acquire a magnetic field distribution of a battery that is installed in a vehicle, perform authenticity determination on whether the battery is a genuine product based on the magnetic field distribution of the battery, evaluate a charging device serving as a delivery source of the battery that is installed in the vehicle among charging devices that charge a battery that is brought by a user and deliver a charged battery to the user in place of the battery, based on a result of the authenticity determination, and output evaluation of the charging device.
Resumen de: US2025208095A1
Systems and methods of evaluating the electrochemical stability of material are provided comprising providing an electrochemical cell having a tube cell, electrolyte material, and at least one reference electrode and at least one working electrode. The working electrode can be at least one of aluminum and copper foil. In some instances, the working electrode can be coated with a test material. In some other instances, the electrolyte material can be pretreated with a test material. The electrochemical cell can be subjected to a cyclic voltammetry procedure in part to determine physical and/or chemical attributes of the test material.
Resumen de: WO2025137417A1
A metal-hydrogen battery is presented. The battery includes a bridgeless CPV superstack having a number K of units, each unit including a first layer and a second layer, wherein the first layer includes a number L/2 of intermediate anode-cathodes, and wherein the second layer includes an end anode and an end cathode separated by L/2-1 intermediate anode-cathodes; a pressure vessel that encloses the bridgeless CPV superstack; and electrolyte within the pressure vessel. A bridgeless CPV superstack includes K units, each unit including a first layer and a second layer, wherein the first layer includes a number L/2 of intermediate anode-cathodes, and wherein the second layer includes an end anode and an end cathode separated by L/2-1 intermediate anode-cathode.
Resumen de: US2025210728A1
Embodiments described herein relate to electrochemical cells with dendrite prevention mechanisms. In some aspects, an electrochemical cell can include an anode disposed on an anode current collector, a cathode disposed on a cathode current collector, the cathode having a first thickness at a proximal end of the cathode and a second thickness at a distal end of the cathode, the second thickness greater than the first thickness, a first separator disposed on the anode, a second separator disposed on the cathode, an interlayer disposed between the first separator and the second separator, the interlayer including electroactive material and having a proximal end and a distal end, and a power source electrically connected to the proximal end of the cathode and the proximal end of the interlayer, the power source configured to maintain a voltage difference between the cathode and the interlayer below a threshold value.
Resumen de: US2025210782A1
A battery module for a battery pack has a first and a second longitudinal frame member extending in the longitudinal direction. At least three crossbeam frame members extend in the width direction. At least two separate cell stacks, each has a set of cylindrical battery cells and a holder in which the set of cylindrical battery cells are received.
Resumen de: US2025210755A1
A battery pack includes: a box with an accommodating space inside; a beam body, disposed in the accommodating space to divide the accommodating space into several accommodating sub-chambers; a liquid cooling plate, attached to one side of the beam body facing the accommodating sub-chamber, where the liquid cooling plate is connected to the beam body through welding, and a weld joint is formed at a welding position; an insulating layer, attached to one side of the liquid cooling plate facing the accommodating sub-chamber and covering at least the weld joint; and several battery cells, disposed within the accommodating sub-chamber and connected to the insulating layer and the liquid cooling plate to perform heat exchange with the liquid cooling plate.
Resumen de: US2025210753A1
A thermal regulation device for an electric energy storage member includes at least one support plate and at least one distribution plate secured to each other so as to delimit between them one or more circulation ducts for circulating a refrigerant, where the support plate and the distribution plate are two substantially planar plates secured to each other by means of ribs extending perpendicularly to each of the plates, and at least one circulation duct being delimited transversely, on at least one side, by a set of two parallel ribs.
Resumen de: US2025210970A1
A battery module is configured to supply electricity to a load connected to an output terminal. The battery module includes: an electricity storage unit; a relay that is provided between the electricity storage unit and the output terminal and configured to perform switching between an electrically conductive state and a cut-off state between the electricity storage unit and the output terminal; and a control unit configured to control a state of the relay. In the battery module, the control unit is configured to control the relay to be in the cut-off state under a condition that an output resistance of the battery module is equal to or more than a first threshold value.
Resumen de: US2025210694A1
The solid electrolyte layer for a solid-state battery includes a nonwoven fabric and a solid electrolyte, and the solid electrolyte is placed inside the nonwoven fabric, and the ratio of the volume of the nonwoven fabric to the volume of the solid electrolyte layer is 35% or more and 54% or less.
Resumen de: WO2025134006A1
The present invention relates to a process for the recovery of purified graphite materials from a recycled graphite concentrate, the process comprising: treating the recycled graphite concentrate in a caustic leach step, the caustic leach step comprising the contact of the recycled graphite concentrate with a sodium hydroxide solution at a temperature of at least 200°C and elevated pressure, and recovering a solid caustic leach product; and treating the solid caustic leach product in an acid leach step, the acid leach step comprising the contact of the solid caustic leach product with an acidic solution, and recovering a solid acid leach product, wherein the solid acid leach product comprises a purified graphite material.
Resumen de: WO2025132441A1
A method for preventing fire in a storage unit (1) comprising a housing (10), defining a chamber, and a ventilation unit (6); the method comprising the steps of refrigerating (610) goods located in the chamber using the ventilation unit (6); sensing (310) one or more of heat and gas using a sensing device (31) located in the chamber; sending (311) a signal from the sensing device (31) to a control unit (32), the control unit (32) being associated with the ventilation unit (6) and comprising a signal processing device (33); processing (330) the signal using the signal processing device (33) to determine whether a predetermined threshold related to the sensed one or more of heat and gas is reached or overstepped; triggering (320) the ventilation unit (6) using the control unit (32) when the predetermined threshold is reached or overstepped; and when the ventilation unit (6) is triggered, stopping (611) the supply of cooled air into the chamber; and supplying (621) gas into the chamber using the ventilation unit.
Resumen de: WO2025133308A1
The invention relates to the use of at least one element in a cooling circuit using at least one dielectric fluid, wherein: the dielectric fluid is liquid at atmospheric pressure at 23°C and comprises less than 10% by weight of water and glycol ether; the element consists of a polyamide composition comprising: o 35 to 85% by weight of a polyamide matrix having an average C/N ratio greater than or equal to 7; and o 15 to 65% by weight of reinforcing fibres or fillers; the element being in direct contact with the dielectric fluid.
Resumen de: US2025210670A1
A current collector for a bipolar battery has a conductive region. An insulating region is formed around the conductive region to shield the conductive region.
Resumen de: US2025210661A1
An electrode assembly, a battery cell, a battery, and an electrical device are described. The electrode assembly includes a positive electrode plate, a negative electrode plate, a separator, and an organic coating. The separator is disposed between the positive electrode plate and the negative electrode plate. The organic coating is disposed on a side of the positive electrode plate facing the separator and/or on a side of the separator, and the organic coating includes organic particles that react with dendrites containing metal elements.
Resumen de: US2025210665A1
An electrode material, electrode, battery and method for forming the electrode material are provided. The electrode material includes an active particle and a cladding layer partially or completely covering the surface of the active particle. The cladding layer includes 5 to 70 parts by weight of a conductive additive and 30 to 95 parts by weight of a first polymer, wherein the total weight of the first polymer and the conductive additive is 100 parts by weight. The first polymer is a product of a compound having two acrylate groups and an ethylene-vinyl acetate copolymer via a polymerization. The compound having two acrylate groups has the structure as represented by Formula (I)wherein A1, R1 and R2 are disclosed in the specification.
Resumen de: US2025210691A1
A solid electrolyte including a mixed solid ion conductor with a metal nitrate or a hydrate thereof. The metal of the metal nitrate is one or more of an M metal or an M′ metal, the M metal is a monovalent cationic metal, and the M′ metal is one or more of a divalent cationic metal, a trivalent cationic metal, a tetravalent cationic metal, a pentavalent cationic metal or a hexavalent cationic metal. Also disclosed are an electrochemical device including the solid electrolyte, and a method of preparing the solid electrolyte.
Resumen de: US2025210786A1
The disclosure relates to the field of batteries and specifically provides a battery pack including a box body, a cell stack, an adhesive blocking portion, and at least two adhesive structures. The box body has an installation space. The cell stack includes a plurality of soft-pack cells and is arranged in the installation space. The adhesive structures are arranged in the installation space and directly connected between the cell stack and the box body. The adhesive blocking portion is arranged between the at least two adhesive structures to isolate the at least two adhesive structures. In the battery pack, the adhesive structures may be used to provide more comprehensive support for the cell stack, and mutual interference between different adhesive structures may be prevented.
Resumen de: US2025210788A1
The disclosure provides a battery module and a battery pack. The battery module includes a plurality of cells, two end plates, and at least one hold-down strip; the plurality of cells are arranged sequentially in a first direction to form a cell group; the two end plates abut against two ends of the cell group, respectively; and the hold-down strip abuts against the cell group, the hold-down strip includes a hold-down strip body and a connecting component, the hold-down strip body extends in the first direction, the connecting component is connected to an end of the hold-down strip body in the first direction, and the connecting component movably abuts against a side of one of the two end plates away from the cell group.
Resumen de: WO2025133036A1
A cylindrical secondary cell (100) is provided comprising a housing (102) with an end surface (103). The cell further comprises an electrode assembly (204) arranged in the housing (102), and a current collector plate (106) connected to an electrode (105) of the electrode assembly (204). The end surface (103) is provided with at least one fracturable portion (124), which is configured to break when the pressure in the housing (102) reaches a threshold value. The current collector plate (106) is provided with at least one flap (202), which is configured to bend toward the end surface when the fracturable portion (124) breaks, such that one or more openings are formed in the current collector plate (106).
Resumen de: WO2025133146A1
There is disclosed herein a method for preparing an electrode for a sodium-ion secondary cell, comprising the steps of: applying an electrode coating (204) along a coating axis (c) on an electrode substrate sheet (202) to form a coated substrate sheet, the electrode coating (204) comprising an active electrode material wherein the active electrode material comprises one of hard carbon or a Prussian Blue analogue; cutting the coated substrate sheet across the coating axis (c) into a plurality of portions (210); and calendering a portion of the plurality of portions, wherein the calendering comprises applying pressure with at least one roller (212) having a pressure- applying axis (p) aligned with the coating axis (c). Among other benefits, the risk minimization of damage to the electrode substrate is achieved. Also disclosed herein is an electrode prepared by the aforementioned method, a sodium-ion cell comprising such an electrode, a battery system comprising such a cell, and a vehicle comprising such a battery system.
Resumen de: WO2025133084A1
A cylindrical secondary cell (100) comprising a cylindrical housing (102) comprising a first end 104 and an opposing second end (106), a first terminal (110) at the first end, a second terminal electrically insulated from the first terminal, an electrode assembly within the cylindrical housing, and a current collector electrically interconnecting the electrode assembly and the first terminal. The first end includes a first end breakable portion (120) configured to rupture to provide an opening in the first end if the pressure within the cylindrical housing reaches a threshold value. The current collector includes a first current collector part (124) directly electrically connected to the electrode assembly, a second current collector part (126) directly electrically connected to the first terminal, and a current collector breakable portion interconnecting the first current collector part and the second current collector part. The current collector breakable portion is configured to be broken by the rupture of the first end breakable portion to disconnect the first current collector part and the second current collector part.
Resumen de: WO2025132439A1
A vessel, said vessel comprising one or more lower decks (10, 20, 30, 40) where at least a part of the one or more lower decks (10, 20, 30, 40) is provided with a support surface (87), which support surface (81) comprises through-going ventilation openings allowing ventilation of the vessel, the vessel comprising at least one ventilation system, which from one hull-side of the decks (10, 20, 30, 40) has ventilation air supply openings (65) at the support surface (81) at each deck (10, 20, 30, 40), the ventilation system being configured to supply cooled air to the ventilation air supply openings (65), and the vessel further comprising a sensing device (91) configured to sense one or more of heat and gas, a control unit (92) associated with the sensing device and the ventilation system and comprising a signal processing device (93) configured to receive a signal from the sensing device (91) and to process the received signal to determine whether a predetermined threshold related to the sensed heat and gas is reached or overstepped, the control unit (92) being configured to trigger the ventilation system when it is determined that the predetermined threshold is reached or overstepped and the ventilation system being configured to supply gas to the ventilation air supply openings (65), when triggered by the control unit.
Resumen de: US2025210656A1
The present disclosure provides an electrode active material comprising hard carbon and capable of improving capacity at low potential and a manufacturing method therefor, an electrode mixture comprising such an electrode active material, and a battery comprising such an electrode mixture. The hard carbon comprised in the electrode active material of the present disclosure has a G′-band, a G-band, and a D-band in a Raman spectrum. The ratio IG′/IG of intensity IG, of the G′-band to intensity IG of the G-band is 0.05 or more. The half-width HwD of D-band is 50 or more and 160 or less. The method for manufacturing the electrode active material of the present disclosure comprises the following steps: providing a raw material comprising carbon, and firing to carbonize the raw material under an inert atmosphere comprising more than 0% and less than 1.0% of air.
Resumen de: US2025210777A1
Disclosed is a battery for an electric or hybrid vehicle, comprising:a casing defining a housing that extends in a longitudinal direction and a transverse direction, the housing having a first lateral edge,a plurality of transverse cross-members,a plurality of assemblies comprising electrochemical cells, the cross-members and the assemblies being arranged successively in the longitudinal direction in the housing,a plurality of corner members for transmitting transverse forces between the cross-members and the housing, at least some of the corner members having a first portion that extends perpendicular to the transverse direction and is attached to a transverse end of at least some of the cross-members, and a second portion that extends transversely from the first portion and is attached to the first lateral edge; the assemblies, the first portion, and the first lateral edge at least partially define a longitudinally extending housing.
Resumen de: US2025210776A1
A battery pack is disclosed configured to provide electricity to an electric propulsion motor of a vehicle. The battery pack comprises at least two layers of battery cells arranged inside a casing, and a battery junction compartment arranged outside of the casing. The battery junction compartment comprises a number of electrical connection arrangements electrically connecting battery cells of the at least two layers of battery cells. The present disclosure further relates to a vehicle comprising an electric propulsion motor and a battery pack configured to provide electricity to the electric propulsion motor.
Resumen de: US2025210778A1
Disclosed is a battery, for an electric or hybrid vehicle, comprising:a casing defining a housing that extends in a longitudinal direction and a transverse direction,a plurality of cross-members attached to the casing and extending in the transverse direction between a first lateral edge and a second lateral edge of the casing, anda plurality of assemblies comprising electrochemical cells that extend successively in the transverse direction and are secured to one another,the cross-members and the assemblies being arranged successively against one other in the longitudinal direction in the housing so that there is no mechanical clearance between the cross-members and the assemblies, the assemblies and/or cross-members being attached to the casing.
Resumen de: US2025206147A1
An operating point for a vehicle electric motor is selected to produce requested torque inefficiently, to generate additional heat to warm the battery. A torque command for operation of the vehicle at a desired speed and a heat power command for an amount of heat needed to warm a battery powering the vehicle electric motor are received by a motor controller. The motor controller determines an operating point of the vehicle electric motor that corresponds to both the requested torque and the amount of heat, and the vehicle electric motor is controlled based on the determined operating point.
Resumen de: DE102024136623A1
Die vorliegende Offenbarung stellt ein Elektrodenaktivmaterial bereit, das harten Kohlenstoff enthält und in der Lage ist, die Kapazität bei niedrigem Potential zu verbessern, sowie ein Herstellungsverfahren dafür, eine Elektrodenmischung, die ein solches Elektrodenaktivmaterial enthält, und eine Batterie, die eine solche Elektrodenmischung enthält. Der harte Kohlenstoff, der in dem Elektrodenaktivmaterial der vorliegenden Offenbarung enthalten ist, hat ein G'-Band, ein G-Band und ein D-Band in einem Raman-Spektrum. Das Verhältnis IG/I'Gvon Intensität IG'des G'-Bandes zu Intensität IGdes G-Bandes beträgt 0,05 oder mehr. Die Halbwertsbreite HwDdes D-Bandes beträgt 50 oder mehr und 160 oder weniger. Das Verfahren zur Herstellung des Elektrodenaktivmaterials der vorliegenden Offenbarung umfasst die folgenden Schritte: Bereitstellen eines Rohmaterials, das Kohlenstoff umfasst, und Brennen, um das Rohmaterial unter einer inerten Atmosphäre, die mehr als 0 % und weniger als 1,0 % Luft umfasst, zu karbonisieren.
Resumen de: DE102024137105A1
Ein neuartiges Positivelektrodenaktivmaterial wird bereitgestellt. Außerdem wird eine Batterie mit vorteilhaften Lade- und Entladeeigenschaften bereitgestellt. Die Batterie umfasst eine Positivelektrode, und die Positivelektrode umfasst ein Positivelektrodenaktivmaterial, das Lithium-Kobalt-Oxid umfasst. Das Lithium-Kobalt-Oxid enthält Magnesium, Aluminium und Nickel, und wenn die Konzentration von Kobalt in dem Lithium-Kobalt-Oxid, die durch die XPS-Analyse gemessen wird, als 1 dargestellt wird, ist die Magnesiumkonzentration (Mg/Co) höher als oder gleich 0,50 und niedriger als oder gleich 0,90; und die Halbwertsbreite eines Mg1s-Peaks ist höher als oder gleich 1,0 eV und niedriger als oder gleich 2,6 eV.
Resumen de: WO2025132854A1
The invention relates to an electric energy storage device comprising a housing, at least one rechargeable battery cell received in the housing and a open- and/or closed-loop control apparatus for controlling, in an open- and/or closed-loop manner, the charging and discharging of the at least one rechargeable battery cell and for monitoring a charging state of same, wherein the electric energy storage device comprises an electric deep discharging apparatus for irreversibly deep discharging the at least one battery cell and wherein the electric deep discharging apparatus is designed independently of the open- and/or closed-loop control apparatus and can be actuated or activated independently of same. The invention further relates to an improved battery-powered device.
Resumen de: US2025210772A1
A battery pack has a plurality of pack power contacts, the pack power contacts having touch points for the user-releasable touching of tool power contacts of an electrically powered tool for supplying the tool with electric drive power from the battery pack, and a pack housing. The pack housing has at least one flame-retardant housing component and at least one impact-protection housing component. The at least one flame-retardant housing component has at least one flame-retardant material acting as a flame retardant for the battery pack. The least one impact-protection housing component has at least one impact-protection material that differs from the flame-retardant material for providing impact protection for the battery pack. The touch points are located in the region of the at least one flame-retardant housing component and not in the region of the at least one impact-protection housing component.
Resumen de: US2025210764A1
A pair of laminate exterior bodies that covers the entire laminate obtained by laminating a plurality of electrodes including current collectors in a predetermined lamination direction with the laminate exterior bodies thermally welded to each other in a state where the entire laminate is interposed between the laminate exterior bodies includes conductive layers that are electrically connected to end portion current collectors that are the current collectors of the electrodes at both end portions of the laminate, first sealant layers provided on first surfaces of the conductive layers that are surfaces on the opposite sides of the conductive layers from the laminate, and laminate layers provided on surfaces of the first sealant layers that is on the opposite sides of the first sealant layers from the conductive layers and first folding target portions, second folding target portions, and third folding target portions are folded to have U-shaped sectional shapes.
Resumen de: US2025210771A1
A battery pack that houses a battery stack including a plurality of stacked battery cells includes a lower case and an upper case. The upper case includes a bottom wall portion and a side wall portion. The end portion or side wall portion of the bottom wall portion includes an extra length portion. The extra length portion is extended and configured to displace an end portion of the bottom wall portion, which is near a connecting portion between the bottom wall portion and the side wall portion, upward by the gas generated in the battery pack.
Resumen de: US2025210731A1
Disclosed is a battery pack including: a casing including a lower case; a battery cell stack including multiple pouch battery cells, including two opposite electrode tab sides and side surfaces adjacent to electrode tab sides, and disposed in the lower case; a thermally conductive structural adhesive directly bonding and fixing the battery cell stack and a base plate of the lower case; a foaming adhesive filling and connecting between the electrode tab side and the lower case; a battery management system; a flexible circuit board assembly including a flexible printed circuit board; a side plate fixed to the side surface; a connecting assembly including a flexible flat cable and an adapter, in which the flexible flat cable is disposed on the side surface and connected and fixed to the side plate through the adapter, and the battery management system and the flexible printed circuit board are communicatively connected through the connecting assembly.
Resumen de: US2025210696A1
To provide a solid electrolyte layer configured to suppress an increase in resistance, a solid-state battery, and a method for producing the solid-state battery. A solid electrolyte layer for solid-state batteries, wherein the solid electrolyte layer comprises a nonwoven fabric and a solid electrolyte; wherein the solid electrolyte is disposed in an interior of the nonwoven fabric; wherein the solid electrolyte is solid electrolyte particles; and wherein a ratio of an average fiber diameter of the nonwoven fabric to an average particle diameter of the solid electrolyte particles, is 25 or more and 100 or less.
Resumen de: DE102024103343A1
Eine elektrische Verbindung für ein Fahrzeug und Verfahren zur Herstellung einer elektrischen Verbindung für Fahrzeuge. Die elektrische Verbindung umfasst eine erste elektrische Komponente mit einem ersten Verbindungsbereich. Die elektrische Verbindung umfasst auch einen Leiter mit einem zweiten Verbindungsbereich. Der Leiter wird im zweiten Verbindungsbereich mit dem ersten Verbindungsbereich der ersten elektrischen Komponente verbunden. Darüber hinaus umfasst die elektrische Verbindung eine Fügezone, die in der ersten elektrischen Komponente im ersten Verbindungsbereich ausgebildet ist. Der Leiter umfasst einen Kupfer-Graphen-Mehrschichtverbund, der auf der Oberfläche des Leiters ausgebildet ist, wobei der Verbund mindestens eine der folgenden Verbundstrukturen umfasst: a) abwechselnde Schichten aus Graphen und Kupfer, die auf dem Substrat abgeschieden sind, b) Graphenpartikel, die in einer Kupfermatrix dispergiert sind, und c) abwechselnde Schichten aus Graphen und Kupfer, die auf einer Kupferfolie abgeschieden sind, wobei die Kupferfolie um das Substrat gewickelt ist.
Resumen de: DE102024134616A1
Eine Ladesteuerungsvorrichtung (100) ist eingerichtet, um das Laden einer Lithium-Ionen-Batterie (41) zu steuern, einen Zuflussstrom abzuschätzen, der in die Lithium-Ionen-Batterie (41) fließt, wenn ein durch eine Last fließender Strom anhält, einen Schutzladestrom herzuleiten, der ein Maximalwert des Ladestroms ist, der nicht dazu führt, dass die Lithium-Ionen-Batterie (41) eine Lithiumablagerung bildet, Berechnen eines oberen Grenzladestroms auf der Grundlage des Schutzladestroms und des Zuflussstroms, wobei der obere Grenzladestrom eine obere Grenze des Stroms zum Laden der Lithium-Ionen-Batterie (41) ist, und Steuern des Ladens der Lithium-Ionen-Batterie (41) auf der Grundlage einer elektrischen Leistung, die aus dem oberen Grenzladestrom und einer Spannung der Lithium-Ionen-Batterie (41) berechnet wird.
Resumen de: DE102024102944A1
Ein Batteriesystem für ein Kraftfahrzeug oder ein anderes elektrisches System umfasst eine Batterieabdeckung, eine oder mehrere Batteriezellen und eine Ablenkungsbaugruppe. Die Zellen bilden einen Batteriehohlraum, der mit einer entsprechenden Lüftungsöffnung in Fluidverbindung steht. Ein Luftspalt kann in einem Abluftvolumen innerhalb des Batteriesystems definiert sein. Die Ablenkungsbaugruppe umfasst einen Ablenkungskörper, der relativ zu der Lüftungsöffnung angeordnet ist. Der Ablenkungskörper ist beweglich oder stationär. Als Reaktion auf ein thermisches Ausbreitungsereignis, das in dem Modul oder mindestens einer der Batteriezellen auftritt, leitet jeder Ablenkungskörper einen Hochtemperatur-Ausstoßstrom aus dem Hohlraum in ein Abluftvolumen in einer vorbestimmten Strömungsrichtung um, wenn der Ausstoßstrom die Lüftungsöffnung passiert. Die Ablenkungsbaugruppe kann ein Stützelement umfassen, das mit dem Ablenkungskörper verbunden und an die Batteriezelle anschließbar ist.
Resumen de: DE102023136625A1
Die Erfindung betrifft eine elektrische Energiespeichervorrichtung umfassend ein Gehäuse, mindestens eine im Gehäuse aufgenommene wiederaufladbare Batteriezelle und eine Steuer- und/oder Regelungseinrichtung zum Steuern- und/oder Regeln des Ladens und Entladens der mindestens einen wiederaufladbaren Batteriezelle und zur Überwachung eines Ladezustands derselben, wobei die elektrische Energiespeichervorrichtung eine elektrische Tiefentladeeinrichtung umfasst zum irreversiblen Tiefentladen der mindestens einen Batteriezelle und wobei die elektrische Tiefentladeeinrichtung unabhängig von der Steuer- und/oder Regelungseinrichtung ausgebildet und unabhängig von dieser betätigbar oder aktivierbar ist.Ferner wird ein verbessertes batterieelektrisch betriebenes Gerät vorgeschlagen.
Resumen de: WO2025136098A1
The invention provides an electrode (1000) comprising a porous electrode material (700) and a cavity (600), wherein the electrode (1000) comprises an outer surface (1010), wherein the outer surface (1010) comprises a first side (1011) and a second side (1012), wherein: (A) the cavity (600) is arranged at the first side (1011) and configured extending towards the second side (1012); wherein the cavity (600) has a cross-sectional diameter (DCc) selected from the range of 0.5-1.5 mm, and wherein the cavity (600) is defined by an inner surface (1020) of the electrode (1000); (B) the porous electrode material (700) has a porosity selected from the range of 20-90%, wherein for at least 50 vol% of the porous electrode material (700) applies that a distance (d1) to a nearest electrode surface is selected from the range of ≤1 mm, and wherein the electrode surface is selected from the group comprising the outer surface (1010) and the inner surface (1020); (C) the electrode (1000) has an electrode thickness (dE) selected from the range of ≥ 2 mm; and (D) the electrode (1000) is a nickel-based electrode or an iron-based electrode.
Resumen de: WO2025137220A1
Embodiments in accordance with the present disclosure are directed to calibrating a battery management system (BMS) are disclosed. In a particular embodiment, a computing device generates a first CRC value for a new system configuration file to be uploaded to the BMS and after the new system configuration file is uploaded to the BMS, receives from the BMS, a second CRC value generated by the BMS after the new system configuration file is uploaded to the BMS. The computing device also determines whether the second CRC value from the BMS is identical to the first CRC value generated by the computing device and in response to determining that the second CRC value from the BMS is identical to the first CRC value generated by the computing device, validates the safety related parameter values and intended safety function associated with the safety related parameter values.
Resumen de: WO2025132471A1
The invention relates to a device for contacting battery cells (40, 68) with at least one power electronics assembly (20) of a forming unit (10), the at least one power electronics assembly (20) being received individually or modularly in a forming chamber (12, 14) of the forming unit (10). The at least one power electronics assembly (20) is received by way of a contacting strip (24) on an exchangeable mainboard (26), to which the battery cells (40, 68) are connected, and which has a releasable electrical connection (16, 18) to a DC voltage supply. Furthermore, the invention relates to the use of the device for contacting battery cells (40, 68) with at least one power electronics assembly (20) or modules (26) with a plurality of power electronics assemblies (20) for the forming of the battery cells (40, 68) in a forming unit (10).
Resumen de: US2025210767A1
A battery pack is configured to power a power tool and a charging combination. The battery pack includes a housing; and a cell assembly disposed in the housing and including at least one cell unit; where a cell unit of the at least one cell unit includes at least one charged surface to which a surfactant is attached. According to the above technical solutions, the battery pack can have good insulation, a strong anti-rust ability, and high safety performance between a positive electrode and a negative electrode.
Resumen de: US2025210766A1
The present disclosure provides a button cell and an electronic device. The button cell includes a case, a cell, a conductive member arranged on the case and connected to the case in an insulated manner, and a liquid injection port for injecting an electrolyte solution into an accommodating cavity. A cell is placed in an accommodating cavity of a bottom shell. A first tab is welded to an inner bottom wall of the bottom shell, and then the top cover having the conductive member is connected to the bottom shell in a sealed manner, with a second tab on the cell being electrically connected to the conductive member. Finally, an electrolyte solution is injected into the accommodating cavity. After the electrolyte solution is injected, a sealing member covers the liquid injection port, and the sealing member is connected to the liquid injection port in a sealed manner.
Resumen de: US2025210762A1
Embodiments of the present application provide a battery cell, a battery, and an electrical apparatus. For the battery cell of the present application, the volumetric energy density of the battery cell is E, the minimum thickness of the battery cell is T, and T and E meet: E≥600 Wh/L, and 6 Wh/(L·mm)≤E/T≤100 Wh/(L·mm). For the battery cell provided in the present application, the high-energy-density battery cell has a high gas production rate and heat release power when thermal runaway occurs, and therefore, the minimum thickness of the battery cell is adjusted to meet requirements of the high-energy battery cell, thereby ensuring the safety of the battery cell.
Resumen de: US2025210667A1
A cathode for a lithium secondary battery and a lithium secondary battery including the same are provided. The cathode includes a cathode active material layer including a cathode active material and a conductive material, and having a Raman R1 value represented by A1D/A1G and measured on a surface of the cathode active material layer in a range from 1.5 and 4.
Resumen de: US2025210770A1
The present disclosure provides an energy storing device, including: a box, having a battery cabin; at least one column of batteries, arranged inside the battery cabin, wherein each column of batteries includes multiple batteries arranged along the height direction of the box; and at least one control box, arranged inside the battery cabin. In the technical solution of the present disclosure, the battery and control box of the energy storing device are both set inside the battery cabin of the box, and their overall structure is simpler.
Resumen de: US2025210761A1
A secondary battery is disclosed. The secondary battery includes an electrode assembly, an insulating casing accommodating the electrode assembly therein, and a case accommodating the insulating casing therein. The insulating casing includes an upper insulating casing having a first traverse overlapping portion, and a lower insulating casing having a second traverse overlapping portion overlapping the first traverse overlapping portion to form a traverse overlapping portion.
Resumen de: DE102024125110A1
Ein Paar von Laminataußenkörpern, welches das gesamte Laminat bedeckt, erhalten durch Laminieren einer Mehrzahl von Elektroden mit Stromkollektoren in einer vorbestimmten Laminierrichtung, wobei die Laminataußenkörper in einem Zustand thermisch miteinander verschweißt sind, in dem das gesamte Laminat zwischen den Laminataußenkörpern eingefügt ist, umfasst leitfähige Schichten, welche elektrisch mit Endabschnitt-Stromkollektoren verbunden sind, die den Stromkollektoren der Elektroden an beiden Endabschnitten des Laminats entsprechen, erste Dichtungsschichten, welche auf ersten Oberflächen der leitfähigen Schichten bereitgestellt sind, die Oberflächen auf Seiten der leitfähigen Schichten entgegengesetzt zu dem Laminat entsprechen, und Laminatschichten, die auf Oberflächen der ersten Dichtungsschichten bereitgestellt sind, die sich auf Seiten der ersten Dichtungsschichten entgegengesetzt zu den leitfähigen Schichten befinden, und erste Faltungssollabschnitte, zweite Faltungssollabschnitte und dritte Faltungssollabschnitte sind so gefaltet, dass diese U-förmige Querschnittsgestaltungen aufweisen.
Resumen de: DE102024126078A1
Eine Stromversorgungsvorrichtung, die eine Vorrichtung mit Strom versorgt, umfasst: einen Batteriesatz mit einer Batterie und einem Kühler aus Metall; einen Isolierölkreislauf, der so konfiguriert ist, dass er die Batterie kühlt, indem er ein Isolieröl in den Kühler fließen lässt; und einen Controller, der so konfiguriert ist, dass er ein erstes oder ein zweites Relais einschaltet, die einen Strom von der Batterie an eine Leistungssteuervorrichtung liefern, und das andere ausschaltet, um statische Elektrizität, die durch den Fluss des Isolieröls erzeugt wird, an ein Gehäuse der Vorrichtung abzuleiten.
Resumen de: DE102025117742A1
Die Erfindung betrifft einen elektrischen Energiespeicher (100) für ein Fahrzeug mit zumindest einem Zellmodul (200), aufweisend- ein Modulgehäuse (201),- mehrere innerhalb des Modulgehäuses (201) angeordnete und elektrisch miteinander verschaltete Einzelzellen und- eine Modulkontaktanordnung (202) mit einem mit den verschalteten Einzelzellen elektrisch verbundenen Modul-Plus-Kontakt (203) und mit einem mit den verschalteten Einzelzellen elektrisch verbundenen Modul-Minus-Kontakt (204), und zumindest einem Steuergerätmodul (300), aufweisend- ein Steuergerätgehäuse (301),- innerhalb des Steuergerätgehäuses (301) angeordnete Komponenten, ausgebildet zur Überwachung elektrischer und/oder thermischer Parameter und/oder zur Steuerung des zumindest einen Zellmoduls (200) und- eine Steuergerätkontaktanordnung (302) mit einem Steuergerät-Plus-Kontakt (303), welcher mit zumindest einer der Komponenten elektrisch verbunden ist, und mit einem Steuergerät-Minus-Kontakt (304), welcher mit der zumindest einen Komponente elektrisch verbunden ist, wobei der Modul-Plus-Kontakt (203) mit dem Steuergerät-Plus-Kontakt (303) und der Modul-Minus-Kontakt (204) mit dem Steuergerät-Minus-Kontakt (304) elektrisch koppelbar oder gekoppelt sind und zerstörungsfrei voneinander entkoppelbar sind.
Resumen de: DE102024103634A1
Ein Batteriemodul mit einem vorgeformten Einsatz. Das Batteriemodul kann mehrere Batteriezellen, die zum Speichern und Liefern von elektrischer Energie ausgestaltet sind, sowie einen Zellenhalter, der zum Halten der Batteriezellen ausgestaltet ist, umfassen. Der vorgeformte Einsatz kann in Bezug zum Zellenhalter und den Batteriezellen angeordnet und so geformt sein, dass er ein Vergussmaterial umfasst, das so geformt ist, dass es mehrere Kühlkanäle um die Batteriezellen herum bildet.
Resumen de: WO2025132885A1
The present disclosure generally pertains to production of rechargeable battery cells, commonly called secondary cells. More specifically, the disclosure relates to inline gas analysis measurements in a formation process for secondary cells. According to a first aspect the disclosure relates to an arrangement 2 for inline gas analysis measurements in a formation process for secondary cells 1. The arrangement 1 comprises a gas analysis container 22, a plug extraction mechanism 21, and a gas analyser 27. The gas analysis container comprising a sample inlet 23 designed to form fluid tight connection to an opening 12 of a secondary cell 1 to be tested, and an outlet 26. The plug extraction mechanism designed to pull a plug 11 arranged to seal the opening 12, while the opening 12 is connected to the sample inlet 23 of the gas analysis container 22, whereby formation gas residing inside the analysis container 22 is exhausted through the opening 12 and flows into the gas analysis container 22. The gas analyser 27 arranged to be connected to the outlet 26 of the gas analysis container, whereby gas spectra of the formation gas in the analysis container can be analysed. The disclosure also pertains to a corresponding method.
Resumen de: WO2025132877A1
There is disclosed herein a venting arrangement (2000, 3000) and a terminal assembly (100, 200, 300) configured to seal an opening (534o) in a casing (534) of a cylindrical secondary cell (4000, 5000), wherein the terminal assembly (100, 200, 300) comprises a venting channel (130, 230, 330), and the venting channel (130, 230,330) is configured to vent gases generated upon a failure of the cylindrical secondary cell (4000, 5000), the venting arrangement (2000, 3000) comprising: the terminal assembly (100, 200, 300), and a failure vent (2100) arranged to block the venting channel (130, 230, 330) and configured to rupture in response to an internal pressure of the cylindrical secondary cell (4000, 5000) exceeding a threshold.
Resumen de: WO2025132882A1
A secondary cell 100 is provided comprising a housing 102, and an electrode assembly 104 arranged in the housing 102. The secondary cell 100 further comprises a current collector plate 106 directly connected to an electrode 105 of the electrode assembly, and a lid structure 108 which comprises a lid plate 110 and a terminal part 112. A surface portion of the terminal part is configured for attachment to an external load. The terminal part 112 is provided with at least one fracturable portion 124 outside the surface portion configured for attachment to the external load, and the terminal part 112 is directly connected to the current collector plate 106.
Resumen de: WO2025132879A1
The invention relates to a method for closing a through cut-out (10) in a battery cell (12), comprising the following method steps: a) producing or providing an adhesive element (14), comprising: i) an adhesive layer (16) comprising an adhesive compound, ii) a carrier layer (18), arranged on the adhesive layer (16), comprising a first carrier ply (19), and b) adhesively bonding the adhesive element (14) by means of the adhesive layer (16) to the battery cell (12) such that the adhesive element (14) completely covers the through cut-out (10) and the through cut-out (10) is closed in a fluid-tight manner by the adhesive element (14), wherein the adhesive element (14) comprises a pressure opening region (20) which is at least partially surrounded by a weakened region (22) formed in the carrier layer (18), wherein the average thickness of the carrier layer (18) in the weakened region (22) is smaller than the average thickness of the carrier layer (18) in the pressure opening region (20), wherein the adhesive element (14) is configured such that the action of a predefined opening pressure on the pressure opening region (20) at least partially irreversibly destroys the adhesive element (14) in the weakened region (22) and forms a through hole (24) in the adhesive element (14), and wherein the adhesive element (14) is adhesively bonded such that the pressure opening region (20) at least partially covers the through cut-out (10) in the battery cell (12).
Resumen de: US2025210779A1
A box includes a box body and a mounting structure. The box body is provided with an opening and an end wall arranged oppositely. The mounting structure is arranged on the end wall, and when viewed in the thickness direction of the end wall, the mounting structure overlaps with the end wall, and the mounting structure is configured to connect the box body and a device. The mounting structure is arranged on the end wall of the box, which can reduce the size of the part of the mounting structure extending to a side direction of the box body or prevent the mounting structure from extending to the side direction of the box body, thereby reducing the external space occupied by the mounting structure along the side direction of the box body or avoiding the mounting structure occupying the external space along the side direction of the box body.
Resumen de: US2025210748A1
An electrode assembly includes: an electrode stack in which an electrode and a separator are alternately interposed; and an electrode lead extending from the electrode. A thickness of the electrode stack is 15 times or more a thickness of the electrode lead so as to prevent or suppress heat propagation to an adjacent secondary battery.
Resumen de: US2025210760A1
According to various aspects, an electrochemical storage device includes an electrode. The electrode includes TiNb2O7, LiCoO2, LiNi0.5Mn0.5O2, lithium metal, LiMn2O4, Li4Ti5O12, a mixture of LiMn2O4 and LiCoO2, or mixture thereof.
Resumen de: US2025210757A1
The present disclosure relates to a battery assembly including: a plurality of battery cells; an insertion member positioned between the plurality of battery cells; an inlet formed on one side of the insertion member; and a cover member covering the plurality of battery cells and the insertion member, wherein the insertion member may expanded when a fluid is injected to the inside of the insertion member through the inlet.
Resumen de: US2025210759A1
An electrochemical cell includes a mist elimination system that prevents mist from escaping from the cell chamber and conserves moisture within the cell. An exemplary mist elimination system includes a spill prevention device that reduces or prevents an electrolyte from escaping from the cell chamber in the event of an upset, wherein the electrochemical cell is tipped over. A mist elimination system includes a recombination portion that reacts with hydrogen to produce water, that may be reintroduced into the cell chamber. A mist elimination system includes a neutralizer portion that reacts with an electrolyte to bring the pH closer to neutral, as acid/base reaction. A mist elimination system includes a filter that captures mist that may be reintroduced into the cell chamber. A mist elimination system includes a hydrophobic filter on the outer surface to prevent water and other liquids from entering into the mist elimination system.
Resumen de: US2025210756A1
An immersed cooled battery module includes a battery tank, battery cells, and a modular panel. The battery tank includes an outer tank and an inner tank. The inner tank is arranged in the outer tank. The inner tank has an opening connecting to the inner tank and the outer tank. The battery cells are arranged in the inner tank. The modular panel is installed on one side of the outer tank. The modular panel has a liquid inlet and a liquid outlet. The liquid inlet is connected to the inner tank. The liquid outlet is connected to the outer tank. A coolant enters the inner tank from the liquid inlet, then overflows to the outer tank through the opening, and finally discharges from the liquid outlet to complete the circulation of the coolant.
Resumen de: DE102023135807A1
Die Erfindung betrifft einen elektrischen Akkupack (1) für ein elektrisches Akkusystem (100), wobei der elektrische Akkupack (1) aufweist: eine im Wesentlichen zylindrische elektrische Akkuzelle (2), die entlang einer Zellhöhenrichtung (Z) axial erstreckt ist und die zwei elektrische Zellkontaktabschnitte (3) aufweist, wenigstens eine elektrisch leitfähige Verbindungseinrichtung (30) zum Führen elektrischen Stroms zu einem der beiden Zellkontaktabschnitte (3) hin und/oder von dem einen der beiden Zellkontaktabschnitte (3) weg, wobei die Verbindungseinrichtung (30) aufweist: einen elektrisch leitfähigen Kontaktierungsabschnitt (4) zum elektrischen Kontaktieren des einen der beiden Zellkontaktabschnitte (3), wobei der Kontaktierungsabschnitt (4) mit dem einen der beiden Zellkontaktabschnitte (3) elektrisch und unmittelbar mechanisch verbunden ist, und einen elektrisch leitfähigen Verbindungsabschnitt (5) zum Führen elektrischen Stroms zu dem Kontaktierungsabschnitt (4) hin und/oder von dem Kontaktierungsabschnitt (4) weg, wobei der Kontaktierungsabschnitt (4) den Verbindungsabschnitt (5) mit dem einen der beiden Zellkontaktabschnitte (3) elektrisch und mittelbar mechanisch verbindet; wobei der Kontaktierungsabschnitt (4) eine Kontaktierungsabschnitts-Dicke (7) aufweist, wobei der Verbindungsabschnitt (5) eine Verbindungsabschnitts-Dicke (8) aufweist, wobei die Kontaktierungsabschnitts-Dicke (7) kleiner ist als die Verbindungsabschnitts-Dicke (8).
Resumen de: DE102023135806A1
Die Erfindung betrifft ein elektrisches Akkusystem (1), aufweisend: einen auswechselbaren Akkupack (2) zum Speichern elektrischer Energie, und ein elektrisches Akkugerät (3), welches mit dem auswechselbaren Akkupack (2) lösbar elektrisch verbindbar ist, wobei der Akkupack (2) eine Anzahl an im Wesentlichen zylindrischen elektrischen Akkuzellen (5) aufweist, wobei wenigstens eine der elektrischen Akkuzellen (5) eine elektrische Akkuzell-Impedanz aufweist, wobei ein Wert der Akkuzell-Impedanz bei Anlegen eines elektrischen Wechselstroms mit einer Wechselstromfrequenz von 1 kHz bei einem elektrischen Ladezustand der Akkuzelle (5) von 50 % und bei einer Temperatur der Akkuzelle (5) von 20 °C bis 25 °C kleiner als 10 mΩ, insbesondere kleiner als 5 mΩ, ganz insbesondere kleiner oder gleich 3 mΩ, ist, wobei das elektrische Akkusystem (1) eine elektronische Einschaltstrombegrenzungseinrichtung (4) zum, insbesondere reversiblen, Begrenzen eines zwischen dem Akkupack (2) und dem Akkugerät (3) fließenden elektrischen Einschaltstroms aufweist.
Resumen de: DE102023136171A1
Die Erfindung betrifft eine Vorrichtung (1) und ein Verfahren zur Herstellung von elektronischen oder opto-elektronischen Bauelementen oder von Festkörperbatterieschichten als Verbundkörper oder von metallischen Einfach- oder Mehrfachschichten durch vorzugsweise chemische Gasphasenabscheidung oder physikalische Gasphasenabscheidung oder deren Kombination auf ein Substrat (2), umfassend einen Reaktor (3) zur Aufnahme des Substrates (2), wobei dem Reaktor (3) zumindest ein beheizbarer Vorratsbehälter (4) zur Bevorratung von Metall oder zumindest einer Metallverbindung oder zumindest eines Nichtmetalls oder zumindest einer Nichtmetallverbindung oder zumindest eines Halbleiters oder zumindest einer Halbleiterverbindung (5) in teilweise oder vollkommen in verflüssigter oder verdampfter Form vorgeschaltet ist, wobei in den zumindest einen Vorratsbehälter (4) zumindest eine Leitung (6) zum Zuführen von Gas (8a) führt und aus dem zumindest einen Vorratsbehälter (4) zumindest eine Leitung (7) zum Abführen eines Massestroms aus dem Vorratsbehälter (4) führt, wobei die Leitung (6) zum Zuführen von Gas (8a) den Vorratsbehälter (4) mit einer Gasquelle (8) verbindet und der Vorratsbehälter (4) über die zumindest eine Leitung (7) zum Abführen des Massestroms mit dem Reaktor (3) strömungstechnisch verbindbar oder verbunden ist.
Resumen de: WO2025137228A1
Disclosed is an integrated electrode separator comprising an electrode and a composite in-situ separator CIS and where the separator comprises a) a binder resin, b) inorganic particles P1, and c) second inorganic particles P2, the integrated electrode separator having an open porous structure and the number average secondary particle size of P1 is less than 0.5 micron, and the number average particle size of P2 is greater than 1.0 micron. Also provided is a method of making the integrated electrode separator and the application of the integrated electrode separator in a battery or electrochemical cell.
Resumen de: WO2025136858A1
An electric vehicle (EV) charging management system (140, 240) comprises an EV charging system (105, 205) for charging a Li-Ion battery (132) and an automatic mechanism (205(2)) related to charging of a hybrid/electric vehicle (H/EV) to avoid or restrict fires affecting the Li-Ion battery. The automatic mechanism comprises a heat/smoke/gas/particle sensor (125(2), 225(1)), a turn-off switch (225(2)), a processor (225(3)) and a memory (225(4)) storing software (SW) instructions that when executed by the processor, cause the automatic mechanism to detect a fire and shut off charging to H/EV(s). The automatic mechanism further comprises a fire alarm system for protecting a certain zone (417). The fire alarm system includes different control groups (308(1), 308(2), (308(3), 308(4), 308(5)), with a set of causes and effects. The EV charging management system to connect an EV charger to a control group. The EV charging management system can shut down all EV chargers either in a same zone as where the fire is detected, or in an entire building or adjacent buildings or in a parking area.
Resumen de: WO2025133600A1
There is provided a battery module comprising: a housing and multiple battery cells positioned within the housing, wherein the housing is manufactured by profiling and folding metal sheets; and a structural potting layer that encapsulates the battery cells within the housing. The structural potting layer self-moulds around the battery cells and maintains mechanical strength across a wide temperature range, such as approximately from -40°C to 75°C, providing both mechanical stability and thermal isolation.
Resumen de: US2025210775A1
A pressurizing apparatus for a battery tray is provided. The pressurizing apparatus includes a base, a compressive force generation module, a fixing module, and a controller. The compressive force generation module and the fixing module are arranged on the base. The controller is electrically connected to the compressive force generation module and the fixing module. The controller is configured to control the fixing module to be coupled between the compressive force generation module and the battery tray. The controller is configured to control the compressive force generation module to apply a compressive force to a pressure-bearing plate of the battery tray, so that the pressure-bearing plate pressurizes a pressurizing plate of the battery tray, thereby forming a containment on the batteries on a plurality of partition plates of the battery tray.
Resumen de: US2025210736A1
A battery module includes one or more battery cells and a battery module controller operatively coupled to the battery cells. The battery module controller is configured to determine a state of the battery cells. A secure element is operatively coupled to the battery module controller and is configured to store data indicative of the state of the battery cells as determined by the battery module controller. An interface unit operatively coupled to the secure element is configured to receive a request for evaluating the state of the battery from an external user device.
Resumen de: US2025210743A1
Heating a battery pack for a power tool may be required to accelerate a charging time, especially in cold environments. Not all battery packs of a set of battery packs will heat at the same rate because of differences due to physical (e.g., mass) and electrical (e.g., AC resistance) differences. The disclosed approach includes determining an amplitude of an AC heating current based on characteristics of the battery pack attached to a charger so that all the battery packs in the set of battery packs may be heated at roughly the same rate regardless of their individual characteristics. The disclosure describes how this approach may be implemented in a variety of different charging scenarios.
Resumen de: US2025210745A1
The disclosure relates to heat-transfer for a battery. The battery can comprise at least one battery unit. The heat-transfer system can comprise a first heat-conducting element for thermal connection to the at least one battery unit, a second heat-conducting element for thermal connection to a battery external environment, and an actuator configured to alter a position of the first heat-conducting element between a first position for connecting the first heat-conducting element to at least one of the second heat-conducting element and the at least one battery unit and a second position for disconnecting the first heat-conducting element from at least one of the second heat-conducting element and the at least one battery unit. The first heat-conducting element can be configured to receive heat from the at least one battery unit and transfer the heat to the second heat-conducting element in the first position.
Resumen de: US2025210763A1
A cylindrical battery includes: an electrode body in which a positive electrode and a negative electrode are wound with a separator therebetween; a bottomed cylindrical external can that accommodates the electrode body; and a sealing body that is fixed by staking at an opening portion of the external can via a gasket. The external can includes an annular shoulder portion that presses the gasket in the axial direction. A plurality of grooves that are positioned at intervals in the circumferential direction and extend in substantially radial directions are provided on the inner surface of the shoulder portion.
Resumen de: DE102024133842A1
Ein Verfahren zur Herstellung eines Elektrodenfilms umfasst das Aufbringen von Polyvinylidendifluorid auf Partikel aus aktivem Material, das Mischen der Partikel aus aktivem Material, an denen das Polyvinylidendifluorid haftet, mit Polytetrafluorethylen zum Erhalten einer Mischung und die Faserbildung des Polytetrafluorethylens in der Mischung. Ein Verfahren der Faserbildung wird bei einer Temperatur von 50 °C oder höher durchgeführt und die Mischung enthält kein Lösungsmittel.
Resumen de: DE102024138195A1
Die vorliegende Offenbarung stellt eine Elektrodenmischung, die sowohl einen niedrigen Widerstand als auch eine hohe volumetrische Energiedichte erreichen kann, und eine Festkörperbatterie, die eine solche Elektrodenmischung umfasst, bereit. Die Elektrodenmischung der vorliegenden Offenbarung umfasst ein Elektrodenaktivmaterial vom geschichteten Steinsalz-Typ, einen sulfidischen Festkörperelektrolyten und ein leitfähiges Hilfsmittel. Eine D50-Teilchengröße des Elektrodenaktivmaterials vom geschichteten Steinsalz-Typ beträgt 2,5 µm oder mehr und 4,5 µm oder weniger, und ein Verhältnis einer Masse des leitfähigen Hilfsmittels zu einer Masse des sulfidischen Festelektrolyten beträgt 2,0 Massen-% oder mehr und 11,0 Massen-% oder weniger.
Resumen de: DE102023213176A1
Die Batterie (1) umfasst eine Vielzahl von Batteriemodulen (20), eine Master-BMS-Einheit (10) und für jedes Batteriemodul (20) eine Slave-BMS-Einheit (30). Die Master-BMS-Einheit (10) und die Slave-BMS-Einheiten (30) umfassen jeweils einen Funktransceiver. Die Master-BMS-Einheit (10) ist ausgebildet, eine Einbauposition eines ausgewählten Slave-BMS-Einheit (30_m) in der Batterie (1) abhängig von einem Indikator für eine empfangene Signalstärke zu ermitteln. Alternativ ist die Master-BMS-Einheit (10) ausgebildet, eine Signalstärkeindikatorinformation an eine übergeordnete Recheneinheit zu senden, wobei die Signalstärkeindikatorinformation den Indikator für die empfangene Signalstärke umfasst und bewirkt, dass ein Positionsermittlungsmodul der übergeordneten Recheneinheit die Einbauposition der ausgewählten Slave-BMS-Einheit (30_m) in der Batterie (1) abhängig von dem Indikator für die empfangene Signalstärke ermittelt.
Resumen de: DE102024138679A1
Ein Verfahren zur Herstellung einer Energiespeichervorrichtung, die eine Batterie, Einspritzöffnungen, ein rohrförmiges Element, das die Einspritzöffnungen umgibt, und einen Laminatfilm aufweist, umfasst einen Schritt, bei dem der Laminatfilm mit dem rohrförmigen Element in Kontakt gebracht und durch Heißpressen verschweißt wird. Am rohrförmigen Element wird ein erster Bereich, der eine Oberfläche umfasst, die den Laminatfilm berührt, durch Harz L strukturiert, und ein zweiter Bereich, der weiter zur Seite der Einspritzöffnungen hin angeordnet ist als der erste Bereich und der den ersten Bereich berührt, wird durch Harz H strukturiert. Die Schmelzpunkte Tm oder Glasübergangstemperaturen Tg des Harzes L und des Harzes lam sind niedriger als die des Harzes H. Eine Temperatur der Heißpressen ist höher als oder gleich dem Schmelzpunkt Tm oder der Glasübergangstemperatur Tg des Harzes L und des Harzes lam und ist niedriger als der Schmelzpunkt Tm oder die Glasübergangstemperatur Tg des Harzes H.
Resumen de: WO2025134064A1
The invention relates to a method (12) for manufacturing a cell for a secondary battery, the method comprising: • - a first operation (O1) of moving a stacking table, wherein the movement is carried out in a first direction of movement; • - a second operation (O2) of unrolling a separator film onto the stacking table, wherein the separator film comprises a first electrode previously positioned thereon; • - a third operation (03) of moving the stacking table in a second direction of movement, opposite the first direction of movement; • - a fourth operation (04) of depositing a second electrode onto the separator film, wherein the second electrode is of opposite polarity to the first electrode; • - a fifth operation (05) of moving the stacking table in the first direction of movement.
Resumen de: WO2025132255A1
The aim of the invention is to provide a method for forming a battery unit, by means of which method simple production of the battery unit is made possible and by means of which a battery cell of the battery unit is securely accommodated. This aim is achieved by the method comprising the following steps: introducing a battery cell into an interior of a housing and positioning the battery cell relative to a base element in the interior of the housing, wherein the battery cell is positioned at a distance from the base element by means of a positioning device; providing a functional compound on the base element and/or the battery cell, wherein the functional compound is provided before and/or after the positioning of the battery cell; and forming a connection between the battery cell and the base element by means of the functional compound whilst the positioning device spaces the battery cell from the base element.
Resumen de: WO2025133612A1
This invention relates to a process for preparing composite particles by chemical vapour infiltration of an electroactive material into the pores of porous particles. The chemical vapour infiltration is carried out in at least two distinct phases, comprising at least one discontinuous phase and at least one continuous phase.
Resumen de: WO2025133160A1
The disclosure provides a non-aqueous electrolytes providing improved long-term storage-stability at elevated temperature In particular, the electrolyte is suitable for use in cells wherein the cathode active material has a high nickel content.
Resumen de: US2025210749A1
The disclosure relates to the field of batteries, and specifically provides a battery pack and an electric vehicle. The battery pack has a casing including a lower case base plate and a beam structure, a cell stack formed by stacking multiple pouch cells in the casing, an electrode tabs extending from an end of the pouch battery cell toward the beam structure along a length direction of the pouch battery cell, a thermally conductive structural adhesive disposed between the battery cell stack and the lower case base plate, and a foaming adhesive filling a space between the electrode tabs and the beam structure. The solution can construct a pouch CTP battery pack based on the pouch cells, which has a good protective effect on the battery cell stack formed by stacking pouch battery cells and is easy to assemble, so as to improve the overall stability of the battery pack.
Resumen de: US2025210725A1
The invention relates to a battery comprising at least two assemblies (16), each of the two assemblies (16) comprising a plurality of electrochemical cells (18) and a central plate (20), the electrochemical cells (18) of each of the two assemblies (16) comprising a first group (34) of electrochemical cells and a second group (36) of electrochemical cells which are separated from one another in the transverse direction (Y) by the central plate (20),Each of the assemblies (16) is able to move between a use configuration in which the first group (34) and the second group (36) of electrochemical cells are electrically connected to one another and a maintenance configuration in which the first group (34) and the second group (36) of electrochemical cells are electrically disconnected from one another, each of the first group (34) and of the second group (36) of electrochemical cells having a voltage of below 60 V.
Resumen de: US2025210734A1
Disclosed is a lead assembly for a battery system, a battery or battery system having the lead assembly, and a method of manufacturing or assembling the lead assembly, the battery, or battery system. The battery system can be a lead-acid battery system having multiple compartments. A first compartment can be a battery cells compartment and a second compartment can be a battery monitoring system (BMS) compartment. In an embodiment, multiple posts extend through bushings from the first compartment to the second compartment. A lead assembly couples the posts to the BMS. Also disclosed are various bushing designs, and various programmable circuit designs and arrangements.
Resumen de: US2025210729A1
A power maintenance apparatus includes a power conversion part converting voltage from a battery pack into operating voltage required for operation of a controller adapted to manage the battery pack and supply the operating voltage to the controller, and a processor controlling the power conversion part by monitoring voltage supplied from a vehicle terminal to the controller.
Resumen de: US2025210886A1
A power supply device includes: a battery cell; a harness connected to the battery cell; a round terminal connected to the harness; a circuit board electrically connected to the round terminal; a housing accommodating the battery cell, the circuit board, the harness, and the round terminal therein; and a pair of guide pieces holding the round terminal. The round terminal includes a flat part including an end portion having a terminal screw hole passing through the flat part in up and down directions, and a crimp part crimped together with an end of the harness so as to be connected to the end of the harness. The pair of guide pieces respectively holds edges of the flat part of the round terminal in right and left directions perpendicular to the up and down directions while the round terminal is fixed to the housing with a screw inserted into the terminal screw hole.
Resumen de: DE102023136047A1
Batteriesystem (1) mit einer Mehrzahl von Batteriemodulen (2), die jeweilige Sensoren (3) zur sensorischen Aufnahme von Messreihen von physikalischen Größen von in den Batteriemodulen (2) befindlichen Batteriezellen (5) und ein Batteriemanagementsystem, BMS (4), aufweisen, und einem der Mehrzahl an Batteriemodulen (2) zugeordneten Energiemanagementsystem, EMS (7), das konfiguriert ist, auf den Messreihen basierende durch die jeweiligen BMS (4) geschätzte Ladezustände, SOCs, jedes Batteriemoduls (2-1, 2-n) der Mehrzahl von Batteriemodulen (2) zu erhalten und die Mehrzahl von Batteriemodulen (2) in Abhängigkeit von den geschätzten SOCs zu betreiben, wobei das Batteriesystem (1) konfiguriert ist zum Anpassen einer Steuerung der Mehrzahl von Batteriemodulen (2), durch das EMS (7), beruhend auf korrigierten SOCs.
Resumen de: DE102023005238A1
Die Erfindung betrifft eine Schweißvorrichtung (10) und ein damit ausgeführtes Verfahren zum Verschweißen von je zwei Elektroden (24a, 24b) zweier benachbarter Batteriezellen (22a, 22b) mittels eines Zellverbinders (26), umfassend eine Laserschweißeinrichtung (12) sowie einen Niederhalter (16) mit mindestens einem gefederten Druckstück (18) zum Anpressen der zu verschweißenden Bauteile (26, 24a, 24b), wobei die Schweißvorrichtung (10) eine Scanneroptik (13) und Positionserkennung zur Erfassung der Schweißstellen und zur Ausrichtung der Laserschweißeinrichtung (12) und des Laserstrahles (32a,b) umfasst, ferner die Laserschweißeinrichtung (12) und der Niederhalter (16) baulich verbunden sind und das Druckstück (18) eine abgerundete Druckfläche (30) aufweist, welche ausgebildet ist, einen Toleranzausgleich für den Zellverbinder (26) bei der Auflage auf den zu verschweißenden Elektroden (24a, 24b) zu ermöglichen.Dadurch ist eine prozesssichere Verschweißung von geformten Zellverbindern (22) zur verbesserten Bauteilqualität erzielbar, wobei Schweißverbindungen hoher Güte insbesondere im Hinblick auf die elektrische Leitfähigkeit sichergestellt werden können. Insbesondere wird eine Dreh- oder Kippbewegung der Zellverbinder (26) ermöglicht, die sich an unterschiedlich hohe Elektroden anpassen kann.
Resumen de: DE102023136058A1
Die vorliegende Erfindung betrifft eine Batteriegehäuseschale (10) zur Aufnahme von zumindest einer Batteriekomponente in einem von der Batteriegehäuseschale (10) zumindest teilweise begrenzten Aufnahmevolumen (1), wobei die Batteriegehäuseschale (10) eine Kanalbodenfläche (11) und eine mit der Kanalbodenfläche (11) zumindest mittelbar verbundene erste Verbindungsfläche (21) aufweist. Die Batteriegehäuseschale (10) weist eine Decklage (30) auf, die mit der ersten Verbindungsfläche (21) fluiddicht verbunden ist, so dass ein von der Kanalbodenfläche (11) und der Decklage (30) begrenztes Kanalvolumen (41) gebildet ist. Ein Kühlfluideinlass (50) der Batteriegehäuseschale (10) und ein Kühlfluidauslass (60) der Batteriegehäuseschale (10) sind mit dem Kanalvolumen (41) unter Ausbildung eines Kühlfluidkanals (40) fluidverbunden, und eine dem Kanalvolumen (41) abgewandte Kühlfläche (31) der Decklage (30) ist dem Aufnahmevolumen (1) zugewandt und zur Kontaktierung der Batteriekomponente ausgebildet.Ferner betrifft die Erfindung ein Batteriegehäuse aufweisend die Batteriegehäuseschale (10) und eine Batterie aufweisend die Batteriegehäuseschale (10).
Resumen de: WO2025132229A2
The invention relates to a device (1) and a method for producing electronic or optoelectronic components or solid-state battery layers as composite bodies or metal single- or multilayers preferably by means of a chemical vapor deposition or a physical vapor deposition, or a combination thereof, onto a substrate (2), comprising a reactor (3) for receiving the substrate (2), said reactor (3) being paired with at least one heatable storage container (4) for storing metal or at least one metal compound or at least one non-metal or at least one non-metal compound or at least one semiconductor or at least one semiconductor compound (5) in a partially or completely liquefied or evaporated form. At least one line (6) for supplying gas (8a) leads into the at least one storage container (4), and at least one line (7) for discharging a mass flow from the storage container (4) leads out of the at least one storage container (4), wherein the line (6) for supplying gas (8a) connects the storage container (4) to a gas source (8), and the storage container (4) can be or is fluidically connected to the reactor (3) via the at least one line (7) for discharging the mass flow.
Resumen de: US2025210834A1
Secondary batteries are disclosed. In an embodiment of the disclosed technology, a secondary battery may include: a case that accommodates an electrode assembly; a cap plate disposed on the case to seal an opening of the case; an electrolyte injection port disposed in the cap plate to inject an electrolyte into an internal space of the case; a sealing member that seals the electrolyte injection port. The sealing member may include: an inner cap fastened to an inner surface of the electrolyte injection port; and an outer cap inserted into and fastened to the inner cap and configured to elastically compress the inner cap toward the inner surface, thereby improving the safety of the secondary battery.
Resumen de: US2025210831A1
A rechargeable battery includes an electrode assembly, a can accommodating the electrode assembly inside and including a terminal hole, a rivet terminal including a pillar part extending into the terminal hole and a head part coupled to the pillar part, and an insulator between the rivet terminal and the can. The insulator includes a middle part that surrounds the pillar part and extends into the terminal hole, an outer part contacting the head part and the outer surface of the can, and an inner part contacting the inner surface of the can. At least two of the middle part, the outer part, and the inner part include different insulating materials with different heat resistance temperatures.
Resumen de: US2025210800A1
A battery module includes a cell assembly including a plurality of battery cells respectively including an electrode terminal and a vent; a busbar assembly including a plurality of busbars electrically connected to the electrode terminal and a support plate supporting the plurality of busbars; and a sensing line connected to the battery cell to sense a state of the battery cell, and installed on the support plate, wherein the support plate includes a plate body opposing the vent and including a plurality of inlet ports through which gas discharged from the vent passes, a first passage in which the sensing line is installed, and a partition wall comparting the plurality of inlet ports from the first passage to block gas passing through the plurality of inlet ports from moving to the first passage.
Resumen de: US2025210829A1
A rechargeable battery includes: an electrode assembly; a case to accommodate the electrode assembly; a subplate including: a first planar portion connected to the electrode assembly; and a protruding portion protruding on the first planar portion; a cap plate coupled to an open first side of the case; and a terminal plate on the cap plate, and electrically connected to the subplate, the terminal plate including: a recessed first portion including a bottom surface; and a second portion including a second planar portion connected to the recessed first portion. The recessed first portion of the terminal plate is in contact with the protruding portion of the subplate.
Resumen de: US2025210658A1
Provided is a lithium secondary battery including a negative electrode including a negative electrode composite layer including a negative electrode active material including a first negative electrode active material and a second negative electrode active material, a negative electrode conductive material, and a negative electrode binder; a positive electrode including a positive electrode composite layer including a positive electrode active material, a positive electrode conductive material, and a positive electrode binder; and an electrolyte, and CFC defined by Equation 1 is 0.38 to 1.962:CFC=100×Wc−{(D50,a1×D50,a2×L×RN/P×1010)/MWc} Equation 1:wherein in Equation 1, all the variables are described herein.
Resumen de: US2025210733A1
An example outdoor mounted device includes a first battery configured to operate at a low temperature range that at least includes negative 20 Celsius; a second battery configured to operate at a high temperature range; a temperature sensor; and processing circuitry configured to: determine, based on data received from the temperature sensors, a current temperature; responsive to determining that the current temperature is within the low temperature range, cause one or more components of the computing device to operate using electrical energy sourced from the first battery; and responsive to determining that the current temperature is within the high temperature range, cause the one or more components of the computing device to operate using electrical energy sourced from the second battery.
Resumen de: US2025210730A1
Provided is a battery pack, including: a casing, the casing includes a lower housing; a battery cell stack, the battery cell stack includes multiple pouch battery cells, and the battery cell stack is configured in the lower housing; a thermal conductive structural adhesive, the battery cell stack and the bottom plate of the lower housing are directly bonded and fixed through the thermal conductive structural adhesive; a foaming adhesive, the foaming adhesive is filled and connected between the tab side of the battery cell stack and the lower housing; a flexible printed circuit board assembly, the flexible printed circuit board assembly includes: a flexible printed circuit board and an insulating connecting sheet, the flexible printed circuit board is fixedly connected to the battery cell stack through the insulating connecting sheet.
Resumen de: US2025210727A1
A power storage device disclosed herein includes at least one first electrode in layer form, at least one second electrode in layer form, and at least one solid electrolyte layer disposed between the first electrode and the second electrode and including a first solid electrolyte. The electric storage device further includes a composite layer including a carbon material and a second solid electrolyte, at least one boundary selected from the group consisting of a first boundary between the first electrode and the solid electrolyte layer and a second boundary between the second electrode and the solid electrolyte layer.
Resumen de: US2025210721A1
A method for producing a solid electrolyte-based electrochemical cell by dry laminating the solid electrolyte layers to active material layers to form composite components, contacting composite components, and packaging the contacted composite components to form a solid electrolyte-based electrochemical cell.
Resumen de: US2025210735A1
There are provided an intelligent cell, a battery module (100) containing the intelligent cell, and a battery pack (600) containing the battery module (100). The intelligent cell contains a cell unit (110), an internal switch circuit (120) and a local controller (130), wherein the internal switch circuit (120) is coupled to a positive electrode or a negative electrode of the cell unit (110). The local controller (130) comprises an internal detection unit (131), a communication unit (132) and a processing unit (133), wherein the internal detection unit (131) is configured to detect a state parameter of the cell unit (110), and the state parameter comprises at least one of an input voltage, an output voltage, and a temperature. The communication unit (132) is configured to establish a communication connection with a device external to the intelligent cell, and the processing unit (133) is coupled to the internal switch circuit (120), the internal detection unit (131) and the communication unit (132), and the processing unit (133) is configured to control on-off of the internal switch circuit (120) based on the state parameter or in response to a control command received by the communication unit (132).
Resumen de: DE102023135904A1
Vorgestellt wird ein Verfahren zur Herstellung einer elektrochemischen Speicherzelle. Das Verfahren umfasst die Schritte:- Bereitstellen einer flachen, im Wesentlichen kreisförmigen Kontaktscheibe (200) mit wenigstens zwei Kontaktsegmenten (201, 202), die jeweils einen Kreisausschnitt der Kontaktscheibe (200) formen und symmetrisch um den Mittelpunkt (204) der Kontaktscheibe (200) angeordnet sind, und wobei zwischen den Kontaktsegmenten (201, 202) Kreisausschnitte (205, 206) aus der Kontaktscheibe (200) ausgenommen und symmetrisch um den Mittelpunkt (204) der Kontaktscheibe (204) angeordnet sind,- Anordnen eines Elektrodenwickels (190) in einem zylindrischen Zellgehäuse (110), wobei der Elektrodenwickel (190) eine Elektrodenschichtenfolge (1) umfasst,- Kontaktieren des Elektrodenwickels (190), indem ein Randbereich der Elektrodenschichtenfolge mit einer ersten Fläche der Kontaktsegmente (201, 202) der Kontaktscheibe (200) in Kontakt gebracht wird, und- Verschweißen des Elektrodenwickels (190) mit der Kontaktscheibe, indem eine von der ersten Fläche der Kontaktscheibe (200) abgewandte zweite Fläche (208) der Kontaktsegmente (201, 202) mit Schweißbögen (209) beaufschlagt wird, wobei die Schweißbögen (209) zumindest teilweise konzentrisch um den Mittelpunkt (204) angeordnet werden.
Resumen de: DE102024133559A1
Ein Kühlsystem (100) für eine Batterie (102) eines Elektrofahrzeugs wird offenbart. Das Kühlsystem umfasst eine erste Kühlmittelplatte (104), die sich in einem sinusförmigen Muster erstreckt, eine zweite Kühlmittelplatte (106), die von der ersten Kühlmittelplatte beabstandet ist und sich in einem sinusförmigen Muster erstreckt. Jede Zellenreihe einer Vielzahl von Zellenreihen (108) der Batterie ist an mindestens einer der ersten Kühlmittelplatte oder der zweiten Kühlmittelplatte befestigt, und die Konfiguration benachbarter Zellenreihen der Vielzahl von Zellenreihen wechselt zwischen einem nach oben gerichteten Anschlussende (110a) und einem nach unten gerichteten Anschlussende. Das Kühlsystem umfasst ferner einen Kühlmitteldurchgang (112), der zwischen der ersten Kühlmittelplatte und der zweiten Kühlmittelplatte definiert ist, um den Durchfluss eines Kühlmittels zur Kühlung der Batterie des Elektrofahrzeugs zu ermöglichen.
Resumen de: DE102023135781A1
Die Erfindung betrifft ein Batteriemodul (10) mit mindestens einer ersten Schutzabdeckung (22a), wobei das Batteriemodul (10) mindestens eine Batteriezelle (14) aufweist, die ein erstes Polterminal (16) und eine freigebbare Zellentgasungsöffnung (24) aufweist, wobei das Batteriemodul (10) eine erste Modulseite (26) aufweist, die einen ersten Terminalbereich (28a) und einen vom ersten Terminalbereich (28a) verschiedenen zweiten Bereich (30) umfasst, wobei das erste Polterminal (16) im ersten Terminalbereich (28a) und die freigebbare Zellentgasungsöffnung (24) außerhalb des ersten Terminalbereichs (28a) angeordnet ist. Dabei ist die erste Schutzabdeckung (22a) im ersten Terminalbereich (28a), beschränkt auf den ersten Terminalbereich (28a) und das erste Polterminal (16) überdeckend angeordnet.
Resumen de: WO2025132185A1
The present invention relates to a battery housing shell (10) for receiving at least one battery component in an receiving volume (1) that is at least partially defined by the battery housing shell (10), wherein the battery housing shell (10) has a channel base surface (11) and a first connection surface (21) that is at least indirectly connected to the channel base surface (11). The battery housing shell (10) has a cover layer (30) that is fluid-tightly connected to the first connection surface (21) such that a channel volume (41) is formed which is defined by the channel base surface (11) and the cover layer (30). A coolant inlet (50) of the battery housing shell (10) and a coolant outlet (60) of the battery housing shell (10) are fluidically connected to the channel volume (41), thereby forming a coolant channel (40), and a cooling surface (31) of the cover layer (30), which cooling surface faces away from the channel volume (41), faces the receiving volume (1) and is designed to contact the battery component. The invention also relates to a battery housing comprising the battery housing shell (10) and to a battery comprising the battery housing shell (10).
Resumen de: US2025210660A1
This application provides a lithium supplement slurry, a positive electrode slurry, a secondary battery, a secondary battery preparation method, and an electrical device. The lithium supplement slurry includes a lithium supplement additive and a phosphate ester compound. The lithium supplement slurry uses a phosphate ester compound as a solvent. The phosphate ester compound is stable at a normal temperature, and does not react with the lithium supplement additive. Therefore, in a positive electrode slurry that uses the phosphate ester compound for supplementing lithium, the phosphate ester compound does not make the positive electrode slurry prone to gel, but makes the slurry meet performance requirements on an industrial mass-produced slurry, and makes it easy to apply the slurry to form a coating layer. In addition, the phosphate ester compound is of low toxicity and high safety in production.
Resumen de: US2025210650A1
A positive electrode material includes a positive electrode active material that includes: lithium nickel-based oxide particles in the form of secondary particles as agglomerates of primary particles, in which among all metals excluding lithium, the content of Ni is 50 mol % to 90 mol %; and a boron (B)-containing coating layer formed on the surface of the lithium nickel-based oxide particles. The BET specific surface area of the positive electrode material is about 0.41 m2/g to 0.59 m2/g, and the average crystallite size of the positive electrode material is about 155 nm or more.
Resumen de: US2025210796A1
A battery board 900 incudes: an energy storage apparatus 1 that includes: at least one energy storage device 100 having a discharge valve 131; and a flow path that guides a fluid L discharged from the discharge valve 131 of the one energy storage device 100; and a housing 901 that houses the energy storage apparatus 1, wherein an opening enlarged portion 950 that opens or enlarges an opening area by receiving the fluid L is provided to a portion of the housing 901 that opposedly faces the flow path.
Resumen de: US2025211008A1
A stackable storage device, container or unit is provided. The storage device includes a storage compartment and an interface to recharge rechargeable batteries for power tools. The storage device is stackable within a modular storage system.
Resumen de: US2025210791A1
A battery and an electric device are disclosed. The battery includes a housing, a battery module, and a positioning member. A structural beam is arranged inside the housing. The battery module is arranged in the housing. The positioning member is connected to the structural beam for positioning the battery module. The technical solution provided can reduce the manufacturing cost of the battery.
Resumen de: US2025210793A1
The present disclosure relates to a pressure equalization device for a battery housing (1). The pressure equalization device includes a base (3) and a degassing valve (11) to move from a closed position to an open position to release overpressure inside the battery housing for emergency degassing. The pressure equalization device also includes a pressure equalization device (1) comprising a porous breathable membrane (9) that is permeable to gases and impermeable to liquids for the balance of pressure between an interior of the device (1) and an exterior of the device (1) when the degassing valve (11) is in the closed position. The degassing valve (11) and breathable membrane are decoupled.
Resumen de: US2025210716A1
A secondary battery includes a positive electrode, a negative electrode, a separator, and an electrolyte. The electrolyte includes a compound A represented by formula:R1 to R6 are each independently selected from a fluorine atom, a cyano group, a sulfo group, an aldehyde group, a substituted or unsubstituted C1-C6 alkoxy group, a substituted or unsubstituted C1-C6 alkyl group, a substituted or unsubstituted C2-C6 alkenyl group, a substituted or unsubstituted C2-C6 alkynyl group, a substituted or unsubstituted C6-C12 aryl group, and a substituted or unsubstituted C6-C12 aryloxy group. During substitution, substituents of the groups are each independently selected from a fluorine atom, a C1-C3 alkyl group, or a C2-C4 alkenyl group. The separator includes a base film and a porous coating, and a contact angle between the electrolyte and the surface of the porous coating of the separator is 0° to 36°.
Resumen de: US2025210741A1
A battery cell, a battery module, and a battery pack are provided. The battery cell includes a battery cell body and an optical fiber. A plurality of grating temperature measuring points are formed on the optical fiber. The optical fiber is arranged on the battery cell body.
Resumen de: US2025210719A1
A metal battery comprising an anode, an anode current collector, a cathode, a cathode current collector and a compound of formula (I) disposed between the anode and cathode wherein X is Al or B; R1 in each occurrence is independently a substituent; and two R1 groups may be linked to form a ring; and M+ is a metal cation, and wherein the anode current collector comprises zinc.
Resumen de: US2025210718A1
Electrolyte compositions comprising one or more ion conducting salt(s) and one or more ammonium salt(s), such as, for example, asymmetric ammonium salt(s) or the like, which may, independently, be a quaternary ammonium salt. In various examples, the ammonium salt(s) independently comprise cations(s) chosen from primary ammonium cations, secondary ammonium cations, tertiary ammonium cations, quaternary ammonium cations, and the like, and any combination thereof. In various examples, an electrolyte composition further comprises one or more additional salt(s), which may, independently, be an ion-conducting salt. In various examples, an anode comprising an SEI layer is formed by contacting an anode, such as, for example, a metal anode or the like, with one or more electrolyte composition(s). In various examples, an electrochemical device, such as, for example, a battery, a supercapacitor, a fuel cell, an electrolyzer, an electrolytic cell, or the like comprises one or more composition(s) and/or one or more anode(s).
Resumen de: US2025210744A1
A power supply device that supplies power to an apparatus, includes: a battery pack including a battery and a cooler made of metal; an insulating oil circuit configured to cool the battery by causing an insulating oil to flow into the cooler; and a controller configured to turn on any one of a first relay and a second relay that supply a current from the battery to a power control device, and to turn off the other to discharge static electricity generated by the flow of the insulating oil to a housing of the apparatus.
Resumen de: US2025210715A1
A non-aqueous electrolyte includes a lithium salt, an organic solvent, and an additive. The additive includes a compound represented by a specific chemical formula. The non-aqueous electrolyte forms a stable film on a positive electrode and a negative electrode, thereby improving the long-term durability and life performance of a lithium secondary battery.
Resumen de: DE102024134191A1
Ein Verfahren zum Herstellen eines Kollektors mit einer Elektrode gemäß der vorliegenden Offenbarung umfasst einen Schritt des Fertigens eines Kollektors mit einer Beschichtung und einen Schritt des Fertigens eines Kollektors mit einer Elektrode. Beim Fertigen des Kollektors mit einer Beschichtung wird eine Verbundmaterialschlämme auf einen Kollektor aufgetragen, der ein blattförmiger Kollektor mit einer Vielzahl von Durchgangslöchern oder ein bahnförmiger Kollektor mit einer Vielzahl von Durchgangslöchern ist, und es wird ein Kollektor mit einer Beschichtung gefertigt, der mindestens eine Beschichtung aus der Verbundmaterialschlämme aufweist. Beim Fertigen des Kollektors mit einer Elektrode wird gleichzeitig mit der Bestrahlung von Licht zum Erwärmen der Beschichtung des Kollektors mit einer Beschichtung Kühlluft auf die Durchgangslöcher geblasen, und die Beschichtung wird getrocknet, um eine positive Elektrodenschicht oder eine negative Elektrodenschicht auszubilden, und der Kollektor mit einer Elektrode wird hergestellt.
Resumen de: DE102023135905A1
Es wird eine Deckelbaugruppe (140) für ein Zellgehäuse (110) einer Energiespeicherzelle (100) beschrieben. Die Deckelbaugruppe (140) ist im eingebauten Zustand dazu eingerichtet, ein Befüllen des Zellgehäuses (110) mit einem Elektrolyten (190) zu ermöglichen. Dabei weist die Deckelbaugruppe (140) eine Abschlussplatte (120) mit einer Befestigungsbaugruppe (200) auf, die einen Öffnungsbereich (220) aufweist. Eine erste Gasbarriere (240) ist dazu eingerichtet ist, vor dem Befüllen des Zellgehäuses (110) den Öffnungsbereich (220) gasdicht zu verschließen und zum Befüllen des Zellgehäuses (110) von einem Einfüllelement derart durchdrungen zu werden, dass sich eine Öffnung (221) in der ersten Gasbarriere (240) ausbildet, durch welche der Elektrolyt (190) in das Zellgehäuse (110) eingefüllt werden kann. Ferner ist eine zweite Gasbarriere (250) dazu eingerichtet, die Öffnung (221) nach dem Befüllen des Zellgehäuses (110) gasdicht zu verschließen.
Resumen de: DE102023135808A1
Die Erfindung betrifft einen Akkupack (1) zur lösbaren elektrischen Verbindung mit einem Akkugerät (40), wobei der Akkupack (1) aufweist: wenigstens eine im Wesentlichen zylindrische elektrische Akkuzelle (2) zum Speichern elektrischer Energie, und eine von der wenigstens einen Akkuzelle (2) gesondert ausgebildete und elektrisch mit der Akkuzelle (2) verbundene Strombegrenzungseinrichtung (3) zum Begrenzen eines zwischen der wenigstens einen Akkuzelle (2) und dem Akkugerät (40) fließenden elektrischen Stroms; wobei die wenigstens eine Akkuzelle (2) einen Zellinnenraum (4) und ein Differenzdruckventil (5) aufweist, wobei das Differenzdruckventil (5) dazu ausgebildet ist, den Zellinnenraum (4) selbsttätig mit einer äußeren Umgebung (U) der Akkuzelle (2) druckangleichend zu verbinden, wenn eine zwischen dem Zellinnenraum (4) und der äußeren Umgebung (U) herrschende Druckdifferenz einen vorbestimmten Grenzwert überschreitet, wobei die wenigstens eine Akkuzelle (2) selbst keine Stromunterbrechungseinrichtung und/oder keine Strombegrenzungseinrichtung aufweist.
Resumen de: WO2025136445A1
Provided are electrochemical cells with at least a portion of the exterior surface coated in a conductive aversive coating to deter children from eating the electrochemical cell. Described are compositions and methods for preparing electrochemical cells with aversive coatings capable of conducting electricity through the coating.
Resumen de: US2025210795A1
A battery module includes: a housing, a cell, and a first detection unit. The housing defines a receiving space, a pressure relief port communicated with the receiving space, and a first air inlet communicated with the receiving space. A pressure relief mechanism is arranged in the pressure relief port, an air intaking mechanism is arranged in the first air inlet. The cell is received in the receiving space. The first detection unit is mounted on the housing and configured to detect a predetermined object. The first detection unit is electrically connected to the pressure relief mechanism. When the first detection unit detects that the cell has thermal runaway, the pressure relief mechanism exposes the pressure relief port. When the first detection unit detects that a pressure in the receiving space is less than or equal to a pressure threshold, the air intaking mechanism exposes the first air inlet.
Resumen de: US2025210794A1
An energy storage apparatus 1 includes a plurality of energy storage devices 20, an exhaust portion 71 which is arranged on a gas release valve 29 of each of a plurality of the energy storage devices 20 and forms an exhaust path 76 of gas, a plurality of manifold portions 31 that causes the gas release valve 29 of each of a plurality of the energy storage devices 20 to communicate with the exhaust path 76 of the exhaust portion 71, and a plurality of valve units 40 that close each of a plurality of the manifold portions 31. The valve unit 40 includes a lid body 41 of a single-hinged type that closes the manifold portion 31 and includes an open end portion 414 and a base end portion 413 which is an end portion on an opposite side to the open end portion 414, the lid body 41 having open width of the open end portion 414 larger than open width of the base end portion 413, and a flow regulating portion 42 arranged on a main surface (lower surface 419) facing the gas release valve 29 of the lid body 41 and extending in a direction intersecting a direction from the base end portion 413 toward the open end portion 414.
Resumen de: US2025210790A1
An energy storage apparatus 1 includes: an energy storage device 100; a spacer 200c that is arrayed with the energy storage device 100 in a first direction; and a case 300 that includes a case body 310 where an opening 310a is formed on one side in a second direction that is orthogonal to the first direction, the case 300 housing the energy storage device 100 and the spacer 200c, in which the case 300 includes a case wall portion 314 that is disposed in a posture where the case wall portion 314 is directed toward one side in the first direction, the spacer 200c is disposed at a position where the spacer 200c faces the case wall portion 314 and is disposed adjacently to the case wall portion 314, and the case 300 is configured to be brought into contact with the spacer 200c such that a movement of the spacer 200c in at least one direction out of the second direction and a third direction that is orthogonal to the first direction and the second direction is restricted.
Resumen de: US2025210758A1
A energy storage system includes battery pack and a controller. The battery pack includes an electrochemical cell, a heating film, a first switching transistor, and a first drive circuit. The heating film and the first switching transistor are connected in series, and then connected in parallel between a positive direct current bus and a negative direct current bus. The first drive circuit is configured to output a pulse signal, to drive the first switching transistor to be turned on and turned off. The controller is configured to: if a voltage between the positive direct current bus and the negative direct current bus is greater than a voltage threshold, reduce a duty cycle of the pulse signal; or if a voltage between the positive direct current bus and the negative direct current bus is less than or equal to a voltage threshold, increase a duty cycle of the pulse signal.
Resumen de: AU2023396152A1
A battery thermal event management system includes an enclosure to store a plurality of battery modules, one or more ventilation panels, at least one actuator to open the one or more ventilation panels, and at least one sensor to detect one or more parameters. Further, the battery thermal event management system includes a detection system with a processor memory, and programming in the memory, coupled to the enclosure. The programming causes the battery thermal event management system to detect, via the at least one sensor, the one or more parameters. Next, the battery thermal event management system determines whether the detected one or more parameters indicate a ventilating event. Further, based on the detected one or more parameters indicating the ventilating event, the battery thermal event management system opens, via the at least one actuator, the one or more ventilation panels.
Resumen de: CN119422277A
Provided are a battery pack having an improved battery pack case to ensure electrical insulation and light weight, and an energy storage system including the battery pack. The battery pack of the present invention comprises: at least one cell assembly including a bus bar frame assembly and a plurality of battery cells; a base plate configured such that the cell assembly can be mounted on the base plate; and a reinforcing member configured to fix the bus bar frame assembly and the bottom plate to each other.
Resumen de: AU2022446963A1
A cylindrical battery cell comprising a jelly roll assembly comprising an anode sheet, a cathode sheet, a rubbing region formed at an uncoated region at the end of one of the anode sheet and the cathode sheet. The cylindrical battery cell further includes one or more separator sheets that separate the anode from the cathode and a header, a weld plate that provides an electrical connection between the jelly roll assembly and the header, and an outer housing and an insulator that separates the jelly roll assembly from the outer housing. The insulator includes a neck portion, an angular portion, a skirt portion, and a tapered portion. The neck portion is positioned between the outer housing and an extension portion of the weld plate. The angular portion is positioned between the neck portion and the skirt portion and positioned between the rubbing region and the outer housing.
Resumen de: AU2023390652A1
The present invention provides a solid electrolyte material which may be used in solid-state batteries including semi-solid flow batteries. The resulting solid-state battery may have improved cyclability and increased cycle life. The lithium-based solid electrolyte material may comprise a lithium-based solid electrolyte material comprising Li
Resumen de: DE102023213184A1
Ein primärer Netzwerkknoten einer Master-BMS-Einheit (5) des Batteriemanagementsystems, BMS, und ein jeweiliger sekundäre Netzwerkknoten einer Slave-BMS-Einheit (30) des BMSs sind eingerichtet, unter Verwendung eines vorgegebenen drahtlosen Kommunikationsprotokolls miteinander zu kommunizieren. Es wird eine Matrix von Verbindungsqualitätsparameterwerten abhängig von bereitgestellten Messwerten ermittelt, wobei die bereitgestellten Messwerte jeweils repräsentativ sind für eine Signalqualität für ein von dem primären Netzwerkknoten in einem jeweiligen Frequenzkanal von einem jeweiligen sekundären Netzwerkknoten empfangenen Signal. Die Frequenzkanäle werden klassifiziert abhängig von den für die Frequenzkanäle ermittelten Verbindungsqualitätsparameterwerten und die einer ersten Gruppe zugeordneten Frequenzkanäle werden für eine Übertagung genutzt.
Resumen de: DE102024002943A1
Elektrischer Energiespeicher (10) für ein Kraftfahrzeug, mit einem Gehäuseelement (12), welches einen Aufnahmeraum (14) zumindest teilweise begrenzt, in welchem Speicherzellen (16) angeordnet sind, mit wenigstens zwei elektrischen Verbindungselementen (24, 26) zum elektrischen Verbinden der Speicherzellen (16), wobei die elektrischen Verbindungselemente (24, 26) an einer Verbindungsstelle (28) miteinander verschweißt und dadurch elektrisch miteinander verbunden sind, wobei ein separat von den Speicherzellen (16) ausgebildetes und in dem Aufnahmeraum (14) angeordnetes Stützelement (30) und ein separat von den Speicherzellen (16), dem Stützelement (30) und dem Gehäuseelement (12) ausgebildetes Klemmelement (32) vorgesehen sind, welches in dem Aufnahmeraum (14) angeordnet ist und zum zumindest kraftschlüssigen Fixieren der Verbindungselemente (244, 26) beim Verschweißen der Verbindungelemente (24, 26) ausgebildet ist, wobei die Verbindungsstelle (28) zwischen dem Klemmelement (32) und dem Stützelement (30) angeordnet ist und das Klemmelement (32) über die Verbindungselemente (24, 26) zumindest im Bereich der Verbindungsstelle (28) an dem Stützelement (30) abgestützt sind.
Resumen de: DE102023213130A1
Die Erfindung bezieht sich auf eine Vorrichtung zur Kontaktierung von Batteriezellen (40, 68) mit mindestens einer Leistungselektronik (20) einer Formiereinheit (10), wobei die mindestens eine Leistungselektronik (20) einzeln oder modulweise in einer Formierkammer (12, 14) der Formiereinheit (10) aufgenommen ist. Die mindestens eine Leistungselektronik (20) ist mit einer Kontaktierungsleiste (24) auf einem austauschbaren Mainboard (26) aufgenommen, an welches die Batteriezellen (40, 68) angeschlossen sind, und welches eine lösbare elektrische Verbindung (16, 18) zu einer DC-Spannungsversorgung aufweist. Des Weiteren bezieht sich die Erfindung auf die Verwendung der Vorrichtung zur Kontaktierung von Batteriezellen (40, 68) mit mindestens einer Leistungselektronik (20) oder Modulen (26) mit mehreren Leistungselektroniken (20) zur Formierung der Batteriezellen (40, 68) in einer Formiereinheit (10).
Resumen de: DE102025117789A1
Die Erfindung betrifft einen elektrischen Energiespeicher mit einer Anzahl elektrisch verschalteter, in einem gemeinsamen Gehäuse angeordneter Einzelzellen und einer Temperiervorrichtung mit von einem Temperiermedium (3) durchströmten Temperierkanälen (1.1, 1.2) einer Kanalstruktur (1) zur Temperierung der Einzelzellen. Erfindungsgemäß ist vorgesehen, dass an vorgegebenen Positionen innerhalb der Kanalstruktur (1) zur Einstellung einer Strömungsgeschwindigkeit des Temperiermediums (3) drehbar gelagerte Strömungselemente (2.1 bis 2.6) angeordnet sind.
Resumen de: DE102024130838A1
Die Herstellung eines unzureichend abgedichteten Erzeugnisses wird durch Dichten verhindert, indem ein Dichtungsmaterial an einen Füllanschluss einer Sekundärbatterie geschweißt wird. Als Dichtungsmaterial wird ein transparenter Harzfilm verwendet.
Resumen de: US2025210754A1
The present disclosure provides a hot management component and manufacturing method thereof, a battery, and an electric device, relating to the field of battery technology. The hot management component includes a main body part and a shielding member. The main body part is bent to form multiple connecting regions, and the multiple connecting regions are connected sequentially to form an accommodating space for accommodating battery cells. The connection position of two adjacent connecting regions forms a corner region, and an interior of the main body part is provided with a medium channel passing through the corner region. An Opening is provided at a position corresponding to the medium channel on a side of the corner region away from the accommodating space, and the opening is in communication with the medium channel. The shielding member is connected to the main body part so as to seal the openings.
Resumen de: US2025211001A1
A power source device includes: a secondary battery; a discharging switch connected in series with the secondary battery; a current limiting switch that is connected in parallel with the discharging switch, and is switched to an on state to supply a limited current to a load in a pre-discharging period in which the discharging switch is in an off state; a current detection circuit that detects a current of the secondary battery; and a controlling circuit that controls the discharging switch and the current limiting switch to be turned on or off. The controlling circuit includes a failure diagnosis circuit for the discharging switch, and the failure diagnosis circuit compares a detection current of the secondary battery detected by the current detection circuit with a threshold set to a value larger than the limited current in the pre-discharging period, and when the detection current is larger than the threshold, determines that the discharging switch has an off impossible failure in which the discharging switch cannot be switched off.
Resumen de: US2025210750A1
A battery module for a battery pack includes a plurality of battery cells, having at least one group of stacked prismatic battery cells which are stacked next to each other in the longitudinal direction. A first and a second separate longitudinally extending beam member are offset from each other in the width direction. A plurality of separate crossbeam members are offset from each other in the longitudinal direction, wherein each crossbeam member extends in the width direction and wherein the plurality of separate crossbeam members mechanically connects the first and second separate longitudinally extending beam members together. A cooling plate bottom member is provided at a bottom portion of the first and second separate longitudinally extending beam members and the plurality of separate crossbeam members.
Resumen de: US2025211000A1
An electric vehicle (EV) charging management system comprises an EV charging system for charging a Li-Ion battery and an automatic mechanism related to charging of a hybrid/electric vehicle (H/EV) to avoid or restrict fires affecting the Li-Ion battery. The automatic mechanism comprises a heat/smoke/gas/particle sensor, a turn-off switch, a processor and a memory storing software (SW) instructions that, when executed by the processor, cause the automatic mechanism to detect a fire and shut off charging to H/EV(s). The automatic mechanism further comprises a fire alarm system for protecting a certain zone. The fire alarm system includes different control groups, with a set of causes and effects. The EV charging management system to connect an EV charger to a control group. The EV charging management system can shut down all EV chargers either in a same zone as where the fire is detected, or in an entire building or adjacent buildings or in a parking area.
Resumen de: DE102024139227A1
Bereitstellung einer Festkörperelektrolytschicht, die so konfiguriert ist, dass sie einen Anstieg des Widerstands unterdrückt, einer Festkörperbatterie und eines Verfahrens zur Herstellung der Festkörperbatterie. Festkörperelektrolytschicht für Festkörperbatterien, wobei die Festkörperelektrolytschicht einen Vliesstoff und einen Festkörperelektrolyten umfasst; wobei der Festkörperelektrolyt im Inneren des Vliesstoffs angeordnet ist; wobei der Festkörperelektrolyt Festkörperelektrolytteilchen ist; und wobei das Verhältnis eines durchschnittlichen Faserdurchmessers des Vliesstoffs zu einem durchschnittlichen Teilchendurchmesser der Festkörperelektrolytteilchen 25 oder mehr und 100 oder weniger ist.
Resumen de: DE102023135903A1
Vorgestellt wird ein Verfahren zur Kurzschlussprüfung einer elektrochemischen Speicherzelle, umfassend die Schritte: Bereitstellen einer elektrochemischen Speicherzelle (1) mit einem Elektrolyten (4), Einfrieren der elektrochemischen Speicherzelle (1), so dass der Elektrolyt (4) nichtleitend wird, Anlegen einer Messspannung, und Detektion eines Kurzschlusses der elektrochemischen Speicherzelle (1) als Funktion der Messspannung.
Resumen de: DE102024138125A1
Es sind Tauchwärmeverwaltungssysteme zum Verwalten von Wärmeenergie in einem Traktionsbatteriepack bereitgestellt. Ein beispielhaftes Tauchwärmeverwaltungssystem kann ein Kantenkühlschema nutzen, in dem ein Kühlmittel Nebenseitenflächen (z. B. eine obere Fläche, eine untere Fläche und Enden) des Traktionsbatteriepacks berührt, jedoch nicht über Hauptseitenflächen (z. B. Stirnflächen) der Batteriezellen strömt. Das Kantenkühlschema stellt eine angemessene Kühlung bereit, ohne das Volumen und die Masse des Traktionsbatteriepacks zu erhöhen.
Resumen de: DE102023212933A1
Die Erfindung bezieht sich auf eine Kontaktiervorrichtung (10) für Batteriezellen (12), insbesondere Pouch-Zellen (14). Diese sind mittels einer Andrückvorrichtung (22) an die Kontaktiervorrichtung (10) anstellbar. Es wird mindestens eine, Pouch-Zelle (14) elektrisch kontaktiert. Die Kontaktiervorrichtung (10) ist im Wesentlichen als flachbauende Leiterplatte (36) ausgeführt und umfasst mindestens eine Temperaturmessfläche (40) und einen dieser/diesen gegenüberliegenden Temperatursensor (42) auf. Darüber hinaus bezieht sich die Erfindung auf einen Werkstückträger (16) zur Aufnahme der Kontaktiereinrichtung (10) und der Pouch-Zelle (14), ferner auf eine Formiereinheit (18), die eine Leistungselektronik (50) umfasst sowie auf ein Verfahren zur Kontaktierung von Batteriezellen (12), insbesondere Pouch-Zellen (14) mit einem Flüssig- oder Feststoffelektrolyten sowie auf die Verwendung der Kontaktiervorrichtung (10).
Resumen de: DE102024103885A1
Verfahren zum Herstellen einer Batteriezelle, umfassend das Herstellen von C Kathodenelektroden, durch Beschichten von ersten und zweiten Kathodenaktivmaterialschichten auf gegenüberliegenden Seiten von C Kathodenstromkollektoren und das Aufbringen von ersten und zweiten Dichtungsbeschichtungen auf die C Kathodenstromkollektoren, um jeweils die ersten und die zweiten Kathodenaktivmaterialschichten zu umgeben. Das Verfahren umfasst das Herstellen von A Anodenelektroden durch Beschichten von ersten und zweiten Anodenaktivmaterialschichten auf gegenüberliegenden Seiten von A Anodenstromkollektoren und das Aufbringen von ersten und zweiten Dichtungsbeschichtungen auf den A Anodenstromkollektoren, um jeweils die ersten und die zweiten Anodenaktivmaterialschichten zu umgeben. Das Verfahren umfasst das Anordnen von S Separatoren zwischen den C Kathodenelektroden und den A Anodenelektroden zum Bilden eines Batteriezellenstapels, wobei C, A und S ganze Zahlen größer als eins sind.
Resumen de: US2025210693A1
Disclosed is a solid electrolyte membrane, a method for manufacturing the same, and an all-solid-state battery containing the same. More specifically, the solid electrolyte membrane includes a first solid electrolyte layer and a second solid electrolyte layer stacked adjacent to each other, and the first solid electrolyte layer has a structure in which particulate binders are dispersed, and the second solid electrolyte layer has a structure in which fibrous binders are entangled or connected to each other, and thus the strength may be improved without lowering the ionic conductivity of the solid electrolyte membrane. The solid electrolyte membrane may be substantially free of solvent.
Resumen de: US2025210789A1
Disclosed is a battery pack that includes: a casing, which includes a lower housing; a battery cell stack, which includes multiple pouch battery cells, and includes two opposite tab sides and side surfaces adjacent to the tab sides, the battery cell stack is disposed in the lower housing; a foaming adhesive, which is filled and connected between the tab side of the battery cell stack and the lower housing; side plates, which are fixed on the side surface of the battery cell stack; a flexible circuit board assembly, which includes: a flexible printed circuit board and an insulating connecting sheet, the flexible printed circuit board is fixedly connected to the battery cell stack through the insulating connecting sheet; a battery management system; a connecting assembly, which is communicatively connected between the battery management system and the flexible printed circuit board, and the connecting assembly is fixedly connected to the side plates.
Resumen de: US2025210652A1
A positive electrode active material for a secondary battery which includes a: nickel-based lithium composite transition metal oxide including nickel (Ni), wherein the lithium composite transition metal oxide satisfies Equation 2: Equation 2 Δ size (| crystallite sizeIB-crystallite sizeFWHM|) ≤20, wherein, in Equation 1 and Equation 2, crystallite sizeFWHM is a crystallite size obtained by calculating from X-ray diffraction (XRD) data using a full width at half maximum (FWHM) method, and crystallite sizeIB is a crystallite size obtained by calculating from XRD data using an integral breadth (IB) method.
Resumen de: US2025210653A1
A surface of a LiCoO2-based positive electrode active material to have a rock salt crystal structure is provided. Specifically, a positive electrode active material for a lithium rechargeable battery is provided, including: a core particle containing lithium cobalt oxide doped with aluminum (Al); and a coating layer positioned on a surface of the core particle and containing a cobalt (Co)-based compound having a rock salt crystal structure. A method of producing the positive electrode active material is also provided using a solid-phase method. The positive electrode active material can be applied to a positive electrode, lithium rechargeable battery, battery module, battery pack, and the like.
Resumen de: US2025210783A1
A battery pack module related to one example of the present invention comprises a first battery pack including a plurality of first fitting parts, a second battery pack including a plurality of second fitting parts and disposed to be adjacent to the first battery pack, and a plurality of fixing members coupled together to the first and second fitting parts to connect the first and second battery packs, wherein each fixing member comprises two first pins, in which some regions are fixed to the first fitting parts of the first battery pack and other regions are each fit-coupled to the second fitting parts of the second battery pack, and a second pin connecting the two first pins.
Resumen de: US2025210785A1
A connection assembly, an energy storage cabinet, and an energy storage system are disclosed. When the cabinet is closed, a locking piece is connected between a first limiting piece and a second limiting piece, so as to connect a door and a cabinet body. When the door is impacted, the locking piece connects the door and the cabinet body, thereby improving stability of connection between the door and the cabinet body.
Resumen de: DE102024103895A1
Ein Verfahren zur Herstellung einer Batteriezelle umfasst das Bereitstellen einer Anodenelektrode, die einen nichtplanaren Siliciumfilm umfasst, der auf einem Anodenstromkollektor angeordnet ist; das Eintauchen der Anodenelektrode in eine Lösung, die Lithiummetall, ein Aren und ein organisches Lösungsmittel umfasst, für eine vorgegebene Zeitspanne, um eine Vorlithiierungsbeschichtung auf dem nichtplanaren Siliciumfilm zu bilden; und das Erwärmen der Anodenelektrode, um das organische Lösungsmittel und das Aren nach der vorgegebenen Zeitspanne zu entfernen.
Resumen de: DE102023136589A1
Die Erfindung betrifft ein Zellkontaktiersystem (25) für einen elektrischen Energiespeicher (10) und einen elektrischen Energiespeicher (10), wobei das Zellkontaktiersystem (25) einen Niederhalter (40), eine flexible Leiterplatte (45) und einen an der flexiblen Leiterplatte (45) angeordneten Sensor (50) aufweist, wobei der Niederhalter (40) einen Halteabschnitt (55), einen Federabschnitt (60) und einen Befestigungsabschnitt (65) aufweist, wobei der Halteabschnitt (55) mit einer ersten Anlagefläche (70) an der flexiblen Leiterplatte (45) anliegt, wobei der Befestigungsabschnitt (65) versetzt zu dem Halteabschnitt (55) angeordnet ist und der Federabschnitt (60) den Befestigungsabschnitt (65) mit dem Halteabschnitt (55) mechanisch verbindet, wobei der Niederhalter (40) eine sich über den Befestigungsabschnitt (65), den Federabschnitt (60) und den Halteabschnitt (55) erstreckende erste Materiallage (90) und eine sich zumindest über den Befestigungsabschnitt (65) erstreckende zweite Materiallage (95) aufweist, die mit der ersten Materiallage (90) verbunden ist, wobei der Niederhalter (40) ausgebildet ist, eine Federkraft (FF) zum Anpressen des Halteabschnitts (55) an die flexible Leiterplatte (45) bereitstellen.
Resumen de: DE102024137445A1
Ein Positivelektroden-Aktivverbundmaterial, das ein Positivelektroden-Aktivmaterial und ein Lithiumionen leitendes Oxid beinhaltet, das mindestens ein Element von elementarem B und elementarem P auf mindestens einem Teil der Oberfläche des Positivelektroden-Aktivmaterials enthält, wobei das Positivelektroden-Aktivverbundmaterial einen Festelektrolyt auf mindestens einem Teil der Oberfläche des Lithiumionen leitenden Oxids enthält, und wobei der Grenzflächenlängenwert A (µm-1), erhalten durch Dividieren der Länge (µm) der Grenzfläche zwischen dem Positivelektroden-Aktivmaterial und dem Festelektrolyt, bestätigt aus einem REM-Bild eines Querschnitts des Positivelektroden-Aktivverbundmaterials durch die Fläche (µm2) des Positivelektroden-Aktivmaterials in dem REM-Bild, 1,326 oder mehr beträgt.
Resumen de: DE102023136286A1
Um ein Verfahren zum Ausbilden einer Batterieeinheit bereitzustellen, durch welches eine einfache Herstellung der Batterieeinheit ermöglicht ist und durch welches eine Batteriezelle der Batterieeinheit sicher aufgenommen ist, wird vorgeschlagen, dass das Verfahren folgende Schritte aufweist: Einbringen einer Batteriezelle in einen Innenraum eines Gehäuses und Positionieren der Batteriezelle zu einem Basiselement im Innenraum des Gehäuses, wobei die Batteriezelle durch eine Positioniereinrichtung beabstandet zum Basiselement positioniert wird, Vorsehen einer Funktionsmasse an dem Basiselement und/oder der Batteriezelle, wobei die Funktionsmasse vor und/oder nach dem Positionieren der Batteriezelle vorgesehen wird, und Ausbilden einer Anbindung zwischen der Batteriezelle und dem Basiselement durch die Funktionsmasse, während die Positioniereinrichtung die Batteriezelle zu dem Basiselement beabstandet.
Resumen de: US2025210781A1
A battery pack comprising: one or more battery modules and a battery module sub assembly; a battery pack management arrangement for monitoring and/or controlling the operation of the battery pack; a battery pack fluid connection assembly for connecting one or more ducts of the battery pack to a source of thermal management fluid; and a battery pack electrical connection arrangement for electrically connecting the battery pack to an external load, the battery pack being modular so as to be adaptable to suit multiple design requirements by adjusting the size, number, location and/or orientation of one or more battery modules within the battery pack.
Resumen de: US2025210780A1
Provided are an electrical cabinet and an energy storage container, relating to the field of energy storage. The electrical cabinet is used for an energy storage system, and includes a cabinet body, a first mounting plate and a second mounting plate. The first mounting plate includes a first fixed end and a first rotating end. The first fixed end has one end fixed to the cabinet body and another end fixed to the first mounting plate. The first rotating end can rotate around the first fixed end by 90°, and the first mounting plate is configured to mount alternating current devices and direct current device. The second mounting plate is located below the first mounting plate and includes a second fixed end and a second rotating end. The second fixed end has one end fixed to the cabinet body and another end fixed to the second mounting plate.
Resumen de: US2025210769A1
A container module according to an embodiment of the present disclosure includes: a case providing a space therein and including a side panel; a first side column positioned inside the case, extending in an up-down direction, and coupled to the side panel; a bracket positioned inside the case, coupled to the first side column, and extending in a front-rear direction; and a battery pack installed on the bracket.
Resumen de: US2025210768A1
An accommodation device includes a housing including six substantially quadrangular surfaces facing mutually different directions, the housing being provided in a substantially polyhedral shape, and an accommodation unit provided inside the housing, the accommodation unit accommodating a portable energy accumulator. An opening is provided in the accommodation unit to enable the portable energy accumulator to be inserted and removed, the opening is provided at a position corresponding to a first surface being one of the six surfaces. The first surface includes a first side and a second side, which are parallel to one another. A, first handle is provided at the first side on the housing and a second handle is provided at the second side on the housing.
Resumen de: US2025210765A1
This cylindrical cell comprises: an electrode body in which a positive electrode and a negative electrode are wound with a separator therebetween; a cup-shaped outer can which accommodates the electrode body; a sealing body which is affixed by crimping to the opening portion of the outer can with a gasket therebetween; and a positive electrode lead which is joined to the inner surface of the sealing body. The inner surface of the sealing body has a protrusion which faces an edge in the width direction of the positive electrode lead and prevents the positive electrode lead rotating.
Resumen de: US2025210732A1
A battery pack to be used in motorized furniture is provided. The battery pack includes a plurality of polymer cells. The plurality of polymer cells is connected such that a threshold voltage is achieved. The battery pack also includes a motherboard coupled to the plurality of polymer cells. The motherboard is configured to monitor and regulate each cell in the plurality of cells, as well as the entire plurality of cells as a whole. The motherboard is further configured to regulate power flow throughout the plurality of cells such that more than two motors may operate at the same time.
Resumen de: DE102023213133A1
Ladegerät (100) für ein Fahrzeug, wobei zwischen einer Eingangsanschlusseinheit (110) und einer Ausgangsanschlusseinheit (120) mindestens eine erste Ladeschaltung (140) und eine zweite Ladeschaltung (150) geschaltet sind, wobei die zweite Ladeschaltung (150) eingangsseitig mit einem Schaltelement (160) verbunden ist, welches dazu eingerichtet ist, in einer ersten Schalterstellung die zweite Phase (L2) über die Eingangsanschlusseinheit (110) mit der zweiten Ladeschaltung (150) zu verbinden und in einer zweiten Schalterstellung eine weitere Phase (LW) einer V2L-Steckdose (170) mit der zweiten Ladeschaltung (150) zu verbinden.
Resumen de: DE102024003323A1
Ein Verfahren (100) und ein System (400) zum Vorhersagen der Alterung einer Batteriezelle eines Fahrzeugs werden offenbart. Das Verfahren (100) kann die folgenden Schritte einschließen und durch einen Prozessor (502) einer Steuereinheit (406) ausführen: Empfangen (102) eines Eingabe-Raman-Spektrums der Batteriezelle; Vergleichen (104) unter Verwendung eines Modells zur Identifizierung einer Batteriedegradation mindestens eines aus dem Eingabe-Raman-Spektrum extrahierten Merkmals mit mindestens einem Modellmerkmal des Modells zur Identifizierung einer Batteriedegradation; Berechnen (106) einer verbleibenden Batteriekapazität der Batteriezelle basierend auf dem Vergleich und Vorhersagen (108) der Alterung der Batteriezelle basierend auf der verbleibenden Batteriekapazität unter Verwendung des Modells zur Identifizierung einer Batteriedegradation. Das System (400) kann ein Spektrometer (402) und eine mit dem Spektrometer (402) in Kommunikation stehende Steuereinheit (406) umfassen.
Resumen de: DE102024138759A1
Bereitgestellt ist eine Sekundärbatterie, die eine weiter verbesserte Vibrationsbeständigkeit aufweist. Die Sekundärbatterie weist auf: ein Batterieteil; ein Gehäuseelement, das das Batterieteil beherbergt; und ein an dem Gehäuseelement befestigtes Sicherheitsventil, wobei das Sicherheitsventil zumindest eine Konfiguration aufweist, in der eine Sicherheitsabdeckung mit einer Erhebung in einem Zentrum, ein Scheibenhalter mit einer Öffnung in einem Zentrum, eine Abtrennscheibe mit einer Vertiefung in einem Zentrum und eine Unterscheibe, die sich mit der durch die Öffnung des Scheibenhalters und die Vertiefung der Abtrennscheibe hindurchtretenden Erhebung verbindet, in dieser Reihenfolge von einer relativ äußeren Seite zu einer inneren Seite des Gehäuseelements kombiniert sind, und die Abtrennscheibe eine Vertiefung auf einer Oberfläche aufweist, die sich auf der relativ inneren Seite des Gehäuseelements befindet, wobei die Vertiefung die Unterscheibe aufnimmt.
Resumen de: DE102023005242A1
Die Erfindung betrifft ein Batterie (100) für ein elektrisch betreibbares Fahrzeug, mit einem Batteriegehäuse (50), mit einer Querrichtung (60) und einer Längsrichtung (70), in dem wenigstens ein Zellmodul (20) angeordnet ist, das eine Mehrzahl von Batteriezellen (10) aufweist, welche in einer Stapelrichtung (12) hintereinander angeordnet sind und wenigstens einen Zellstapel (14) bilden, wobei der wenigstens eine Zellstapel (14) in Stapelrichtung (12) zwischen einer ersten Endplatte (22) und einer zweiten Endplatte (24) angeordnet ist und seitlich von einer ersten Seitenplatte (26) und einer zweiten Seitenplatte (28) begrenzt ist. Die erste und zweite Seitenplatte (26, 28) sind mit der ersten und zweiten Endplatte (22, 24) fest verbunden. Dabei sind die erste und zweite Endplatte (22, 24) und die erste und zweite Seitenplatte (26, 28) an einer Rahmenstruktur (52) des Batteriegehäuses (50) abgestützt.Die Erfindung betrifft ferner ein Kraftfahrzeug, insbesondere elektrisch betreibbares Fahrzeug, mit wenigstens einer Batterie (100).
Resumen de: US2025210703A1
An aspect of the present invention is a sulfide solid electrolyte that contains at least one element M selected from the group consisting of Al, Si, B, Mg, Zr, Ti, Hf, Ca, Sr, Sc, Ce, Ta, Nb, W, Mo, and V, and N and has a crystalline structure. Another aspect of the present invention is a sulfide solid electrolyte that contains Al and N and that has a crystalline structure.
Resumen de: US2025210663A1
A binder for an all-solid-state battery includes a first polymer in which a chain comprising a first hydrogen-bonding functional group is grafted with a side chain on the main chain of a conjugated diene-based polymer and a second polymer in which a chain comprising a second hydrogen-bonding functional group is grafted with a side chain on the main chain of a conjugated diene-based polymer, wherein the first hydrogen-bonding functional group of the first polymer and the second hydrogen-bonding functional group of the second polymer form hydrogen bonds with each other. A positive electrode for an all-solid-state battery including the binder for an all-solid-state battery, a conductive material, a positive electrode active material and a solid electrolyte, and an all-solid-state battery including the positive electrode are also described.
Resumen de: US2025210738A1
A battery pack detection system configured to be arranged surrounding a battery pack formed by a plurality of batteries arranged in an M×N array includes first sensing modules, second sensing modules and a computing module. Each first sensing module includes M first sensing parts each configured to sense a sum of first expansions of the N batteries in the corresponding column. Each second sensing module includes N second sensing parts each configured to sense a sum of second expansions of the M batteries in the corresponding row. Each of M and N is an integer greater than or equal to 2. The computing module connects with the first sensing modules and the second sensing modules so as to determine whether each battery is a defective battery based on the first expansion sum, the second expansion sum, corresponding first addresses and corresponding second addresses.
Resumen de: US2025210708A1
A lithium battery including a cathode, an anode current collector, and an electrolyte layer disposed between the cathode and the anode current collector is provided. The electrolyte layer includes a gel polymer electrolyte, wherein the gel polymer electrolyte includes a first polymer, a first lithium salt, a second lithium salt, a first organic solvent, and a second organic solvent, the first polymer includes a repeating unit derived from a first crosslinking monomer including three or more reactive functional groups, and the first lithium salt and the second lithium salt each independently include a borate-based lithium salt.
Resumen de: US2025210706A1
A polymer electrolyte for a battery cell comprising i) a first polymaleimide polymer comprising first polymaleimide repeat units, wherein the first polymaleimide repeat units are according to R3(Q)μ, wherein R3, individually, is a polyether or C(H)h(CxH2x+1)i((CH2)ψ)j(CH2OC(O)(CH2)σ)k, wherein i is between 0 and 2; j and k, individually, are between 0 and 4; h is 4-i-j-k; h+i is between 0 and 2; x is between 1 and 6; L) is between 1 and 10; σ is between 1 and 20; μ, individually, is at least 2; and Q, individually, is according to a particular formula.
Resumen de: DE102024136866A1
Eine Elektrodenbaugruppe (1) weist Folgendes auf: einen ersten Stromkollektor (10); eine erste Verbundmaterialschicht (20); einen zweiten Stromkollektor (30); eine zweite Verbundmaterialschicht (40); und einen Separator (50). Die erste Verbundmaterialschicht (20) ist auf dem ersten Stromkollektor (10) vorgesehen. Die zweite Verbundmaterialschicht (40) ist auf dem zweiten Stromkollektor (30) vorgesehen. Der Separator (50) ist zwischen der ersten Verbundmaterialschicht (20) und der zweiten Verbundmaterialschicht (40) angeordnet. Die zweite Verbundmaterialschicht (40) enthält einen Nutabschnitt (41). Der Nutabschnitt (41) erstreckt sich entlang einer Ebenenrichtung der ersten Verbundmaterialschicht (20). An einer Position, die mit dem Nutabschnitt (41) in Kontakt ist, ist ein Lüftungsabschnitt (100) ausgebildet.
Resumen de: DE102023136309A1
Die Erfindung betrifft ein Zelltrennelement (18) für ein Batteriemodul (10) zur Anordnung zwischen zwei Batteriezellen (12) des Batteriemoduls (10), wobei das Zelltrennelement (18) aus einem Material (M) gebildet ist, das mindestens eine erste Materialkomponente (M1) umfasst. Dabei ist zumindest die mindestens eine erste Materialkomponente (M1) so beschaffen, dass sich eine Wärmeleitfähigkeit (λ) der mindestens einen ersten Materialkomponente (M1) zumindest in einem bestimmten Temperaturbereich (ΔT) mit zunehmender Temperatur (T) verringert.
Resumen de: DE102023005236A1
Die Erfindung betrifft ein Strangpressprofil (12) für ein Batteriegehäuse eines Kraftfahrzeugs, welches im Wesentlichen quaderförmig ausgebildet ist, mit zumindest einer Anlegeseite (18) zum Anlegen an ein weiteres Strangpressprofil (14), wobei das Strangpressprofil (12) und das weitere Strangpressprofil (14) zum Verschweißen miteinander an der Anlegeseite (18) ausgebildet sind, wobei die Anlegeseite (18) zwischen zwei Anlagepunkte (22) der Anlegeseite (18), welche im Wesentlich an einer jeweiligen Ecke der Anlegeseite (18) ausgebildet sind, eine Vertiefung (24) im Querschnitt der Anlegeseite (18) betrachtet hin zum weiteren Strangpressprofil (14) aufweist. Ferner betrifft die Erfindung eine Anordnung (10), sowie ein Batteriegehäuse.
Resumen de: DE102024122466A1
Enthalten sind eine Klimatisierungsvorrichtung und ein Klimatisierungssystem für ein Fahrzeug, die die Betriebseffizienz eines Wärmetauschers verbessern können, indem sie die Einleitungsrichtung der Außenluft, die dem Wärmetauscher zugeführt wird, ändern und die Menge des Wärmeaustauschs zwischen dem Wärmetauscher und der Außenluft entsprechend der Fahrtrichtung oder der Verwendung einer Wärmepumpe einstellen, sowie ein Steuerungsverfahren, das dieses Verfahren verwendet.
Resumen de: DE102024103883A1
Die Ausführungsformen enthalten Verfahren und Systeme zum Ladungsausgleich in einem Batteriesystem, das einen Strang von Batteriepacks aufweist, die jeweils mehrere Batteriezellen enthalten. Die Aspekte enthalten das Erhalten elektrischer Parameter für jede der mehreren Batteriezellen und das Berechnen eines Batteriepack-Ausgleichspunkts für jeden der Batteriepacks in dem Strang. Die Aspekte enthalten außerdem das Anweisen eines Zellenausgleichssystems, eine Zellenladungsausgleichsroutine auszuführen, um jede der mehreren Batteriezellen jedes Batteriepacks auf den Batteriepack-Ausgleichspunkt auszugleichen, der dem Batteriepack entspricht, das Berechnen eines Strangausgleichspunkts für den Strang von Batteriepacks basierend auf den Batteriepack-Ausgleichspunkten und das Anweisen des Zellenausgleichssystems jedes Batteriepacks, um die mehreren Batteriezellen des Batteriepacks auf den Strangausgleichspunkt auszugleichen.
Resumen de: WO2025137129A1
Systems and methods for utilizing one or more spools and/or rollers for the gentle application of a lithium layer onto a separator layer in an electrode stack of a solid-state battery cell to prevent or minimize damage to the conductive layer. In one embodiment, a feeder spool of provides a conductive foil and interleaf stack combination to an application roller. The application roller may then apply the conductive foil onto a separator layer of the electrode stack. An interleaf rewind spool may collect the remaining interleaf material from the conductive foil/interleaf combination once the conductive foil is deposited onto the separator layer. The conductive foil may adhere to the separator layer through a combination of a gravity force pressing the conductive foil and/or surface energy between the conductive foil and the SSE layer, thereby allowing the interleaf rewind spool to pull the interleaf material from the combination.
Resumen de: WO2025133478A1
The invention relates to a novel method for preparing an article comprising a silicone foam layer, and to an article comprising a silicone foam layer that can be obtained by the method. According to this method, a silicone composition capable of forming a foam through the release of a gas is deposited between a first textile support T1 and a second textile support T2 on the silicone composition. The silicone foam has a density of 0.2 g/cm3 or less, and the first textile support T1 and the second textile support T2 are gas-permeable.
Resumen de: US2025210655A1
Described herein are electrode active materials useful as the positive electrode in lithium or lithium-ion batteries. The disclosed electrode active materials comprise lithium phosphates uniquely suited for mixing with lithium layered oxides, as well as the resulting mixture. For example, compositions of matter are described herein. The disclosed materials exhibit high energy density with reduced cobalt and nickel content.
Resumen de: US2025210998A1
A method of selecting and charging battery modules connected in a battery string based on a first method and subsequently based on a second method. The first method includes the following steps: establish a state of charge of the battery modules and control connectivity of the battery modules to the battery string according to the established state of charge, to balance the state of charge among the battery modules. The second method includes the following steps: associate the battery modules with a unique battery module identification, establish a battery module current, establish battery cell voltage of battery cells comprised by the battery modules, control connectivity of the battery modules to the battery string according to the battery module identifications, and charge the battery module connected to the battery string for a determined period of time.
Resumen de: US2025210699A1
A sulfide electrolyte having a P chemical building block, a solid-state battery containing the sulfide electrolyte having a P chemical building block, and a method of making the same. The sulfide electrolyte having a P chemical building block contains at least lithium (Li), sulfur(S), phosphorus (P), and a halogen, and has a structure characterized by an 86.6 ppm 31P shift in a 31P NMR spectra. In some preferred embodiments, the sulfide electrolyte having a P chemical building block may include chlorine, present in a unique PS43−—Cl− chemical building block.
Resumen de: US2025210752A1
A battery module having a preformed insert. The battery module may include a plurality of battery cells configured for storing and supplying electrical power and a cell holder configured for supporting the battery cells. The preformed insert may be disposed relative to the cell holder and the battery cells and formed to include a potting material shaped to define a plurality of coolant channels around the battery cells.
Resumen de: US2025210784A1
The present disclosure relates to the field of electronic devices, and in particular, to an electronic device, a battery compartment, and a cover thereof. The hatch cover comprises a cover body, a first locking unit, a second locking unit and a rotary driving unit; the periphery of the cover body is provided with a first sealing ring; the first locking unit comprises a pair of sliding buckles which are connected to the inner side surface of the cover body in a sliding manner and can move towards each other or away from each other.
Resumen de: DE102023135906A1
Ein Verfahren zum Laminieren einer zylindrischen Energiespeicherzelle umfasst die Schritte: Bereitstellen einer Elektrodenschichtenfolge (2) umfassend wenigstens eine Anode, eine Kathode und einen Separator; Laminieren eines Kernbereichs (2) der Elektrodenschichtenfolge (1), indem ein Laminat unter dem Druck und der Temperatur, die durch einen Laminierstab (200) erzeugt werden, mit dem Kernbereich (2) der Elektrodenschichtenfolge (1) verbunden wird; und Aufwickeln der Elektrodenschichtenfolge (1) zu einem Elektrodenwickel (120), so dass der Kernbereich (2) der Elektrodenschichtenfolge (1) den Wicklungskern (190) des Elektrodenwickels (120) formt.
Resumen de: DE102023005239A1
Die Erfindung betrifft eine Hochvolt-Batterieanordnung (1) für ein Fahrzeug mit einer Mehrzahl von Einzelzellen (3), einem Gehäuse (4) zur Aufnahme der Einzelzellen (3) und einem Latentwärmespeicher (2). Erfindungsgemäß ist vorgesehen, dass der Latentwärmespeicher (2) mit einer temperaturgesteuerten Positionierungsvorrichtung (5) verbunden ist, welche ausgebildet ist, den Latentwärmespeicher (2) automatisch in zumindest zwei Positionen (P1, P2) zu positionieren, wobei der Latentwärmespeicher (2) in einer ersten Position (P1) mit den Einzelzellen (3) thermisch gekoppelt ist und in einer zweiten Position (P2) mit dem Gehäuse (4) thermisch gekoppelt ist. Weiterhin betrifft die Erfindung ein Verfahren zum Temperieren der Einzelzellen (3) der Hochvolt-Batterieanordnung (1).
Resumen de: WO2025132336A1
The present invention relates to a cathode active material for rechargeable batteries comprising Na, M, and O, wherein M consists of Fe in a molar ratio a, wherein 0.05 ≤ a ≤ 0.40 relative to M; Mn in a molar ratio b, wherein 0.50 ≤ b ≤ 0.90 relative to M; and X in a molar ratio c, wherein 0.01 ≤ c ≤ 0.10 relative to M, and wherein X is at least one element selected from B, Si, K, Co, Ga, Rb, Rh, Cs, Re, Tl and Pb; wherein a+b+c is 1.00, the molar ratio of Na to M (Na/M) is between 0.40 and 1.10, and the content of Na, Fe, Mn and X is measured by ICP-OES and relates to a method for manufacturing the same.
Resumen de: WO2025132353A1
The present invention relates to Li-rich Mn-rich cathode active material comprising high- valence transition metal ions, such as Mo, exhibiting high capacity comprising Li, M and O, wherein M comprises: Ni in a molar ratio x, wherein 0.10 ≤ x ≤ 0.50 relative to M; Mn in a molar ratio y, wherein 0.50 ≤ y ≤ 0.80 relative to M; and Mo in a molar ratio z, wherein 0.001 ≤ z < 0.05 relative to M; wherein the molar ratio of Li to M (Li/M) is between 1.00 and 1.60; and wherein the content of Li, Ni, Mn and Mo is measured by ICP-AES, and x+y+z is 1.00.
Resumen de: WO2025132335A1
The present invention is related to a positive electrode active material powder for lithium-ion rechargeable batteries, wherein the positive electrode active material powder comprises particles, wherein each of the particles consists of at least one primary particle and at most twenty primary particles, wherein the positive electrode active material powder essentially comprises Li, Ni, Mn, Al, and O, and wherein Al is introduced by (i) adding a material formed by heating a mixture comprising a Li source and a transition metal composite precursor essentially comprising Ni and Mn to an aqueous solution comprising a Al-containing compound and (ii) milling the material. Due to the aforementioned introduction of Al, the positive electrode active material powder may have a ratio of Ni3+ to Ni2+ as measured by XPS being at least 1.45.
Resumen de: WO2025132295A2
The present disclosure relates to a battery control unit and a high voltage power supply system comprising the battery control unit. The battery control unit (100) comprises a switch device (102), and an assembled circuit (130), which is mounted on a circuit board (128). The assembled circuit (130) includes detection circuitry (186), which is configured to detect at least one operational parameter of the switch device (102), processing circuitry (184), which is configured to control the operation of the switch device (102) in accordance with the at least one operational parameter detected by the detection circuitry (186), and a plurality of detection contacts (166, 168, 170, 172, 174, 176, 178, 180, 182) for detecting the at least one operational parameter of the switch device (102). The further battery control unit (100) comprises a bus bar arrangement, which comprises an input bus bar (104), which is conductively coupled to an input terminal of the switch device (102), and an output bus bar (116), which is conductively coupled to an output terminal of the switch device (102), wherein the circuit board (128) is disposed with respect to the bus bar arrangement such that the plurality of detection contacts (166, 168, 170, 172, 174, 176, 178, 180, 182) abut against corresponding contact surfaces being provided on the input bus bar (104) and on the output bus bar (116).
Resumen de: WO2025132313A1
The present invention relates to a method for producing bis(fluorosulfonyl)imide, which is economically feasible at industrial scale and which provides a high-purity product.
Resumen de: WO2025132361A1
A cathode active material for rechargeable batteries comprising lithium, M1, and oxygen, wherein M1 comprises: - Ni in a content x1, wherein 0.0 < x1 < 45.0 at%, relative to M1; - Mn in a content y1, wherein 50.0 < y1 < 98.0 at%, relative to M1; - Co in a content z1, wherein 0.0 < z1< 15.0 at%, relative to M1; - Na in a content w1, wherein 0.0 < w1 < 2.0 at%, relative to M1; - S in a content molar ratio ql, wherein 0.0 < q1 < 5.0 at%, relative to M1; - D1 in a content molar ratio dl, wherein 0.0 < d2 < 2.0 at%, relative to M1, wherein D1 is an element different from Li, Ni, Mn, Co, Na, S and O; wherein the content of Ni, Mn, Co, Na, S and D1 is measured by ICP-OES, and x1+y1+z1+w1+q1+d1 is 100.0 at%, and wherein the cathode active material has a BET value of at least 1.0 m2/g.
Resumen de: WO2025132314A1
The present invention relates to a method for producing bis(fluorosulfonyl)imide, which is economically feasible at industrial scale and which provides a high-purity product.
Resumen de: WO2025129838A1
The present application belongs to the technical field of iron phosphate material preparation, and provides a titanium-doped anhydrous iron phosphate material, a preparation method therefor, and a use thereof. The preparation method of the titanium-doped anhydrous iron phosphate material comprises the steps: providing a titanium-containing ferrous sulfate raw material liquid and a titanium-free ferrous sulfate raw material liquid; mixing the titanium-containing ferrous sulfate raw material liquid and the titanium-free ferrous sulfate raw material liquid, to obtain a mixed solution; mixing the mixed solution with an oxidant and a phosphorus source, to obtain a slurry containing iron phosphate and titanium phosphate; sequentially subjecting the slurry to aging, rinsing, drying and sintering, to obtain a titanium-doped anhydrous iron phosphate material. The present application can achieve doping control of elemental titanium in the titanium-doped anhydrous iron phosphate material by means of adjusting the mixing ratio of the titanium-containing ferrous sulfate raw material liquid and the titanium-free ferrous sulfate raw material liquid, so that the elemental titanium content in the final product is stable and controllable; the titanium-doped anhydrous iron phosphate material has a uniform nanoscale particle stacking morphology, which is beneficial for use in preparing battery materials.
Resumen de: WO2025132319A1
An energy management system for a hybrid battery pack (HPB) comprising a high-energy assembly (HE) and a high-power assembly (HP), which are connected through one or more DC/DC converters (Conv, Conv1, Conv2) to one another and/or to a DC bus supplying power to a load, is disclosed, wherein the energy management system is configured to decide, by controlling the power output from the one or more DC/DC converters (Conv, Conv1, Conv2), how large a share of the total power delivered from the hybrid battery pack (HPB) is delivered by the high-energy assembly (HE) and by the high-power assembly (HP), respectively, wherein the energy management system is configured to switch between two or more modes of operation (MO-1, MO-2, MO-3, MO-4), with each of which a specific control criterion (CC-1, CC-2, CC-3) is associated, wherein the two or more modes of operation (MO-1, MO-2, MO-3, MO-4) are ranked in a hierarchy of priority depending on the importance of their respective associated control criteria (CC-1, CC-2, CC-3), and wherein the energy management system is arranged to operate in the highest ranking mode of operation (MO-1, MO-2, MO-3, MO-4), for which the associated control criterion (CC-1, CC-2, CC-3) is fulfilled. Furthermore, a hybrid battery pack (HPB) controlled by such an energy management system and an electric vehicle comprising such a hybrid energy pack are disclosed.
Resumen de: WO2025132340A1
The present invention relates to a battery housing comprising an structural layer and an inner layer wherein the inner layer comprises a polyurethane coating, the polyurethane coating is obtainable by mixing (a) one or more organic polyisocyanates, (b) one or more compounds having at least two isocyanate-reactive hydrogen atoms, comprising polyetherpolyol (b1), (c) one or more catalysts, (d) 30 to 90 wt.-% based on the total weight of components a) to e), of solid flame retardant, and optionally fillers and/or polyurethane additives, to give a reaction mixture and allow the reaction mixture to cure. The present invention further relates to a method for the production of a battery housing according to the invention and a battery comprising a battery housing according to the present invention.
Resumen de: WO2025136485A1
An apparatus arranged for establishing an electrical connection to battery cells is described. The apparatus includes a bushing, a post, and a weld. The bushing has a bushing first portion and a bushing second portion. The post is in physical contact with the bushing. The weld is welded using laser welding and includes bushing material and post material. A weld first portion extends away at least from the bushing. A weld second portion is contiguous to the weld first portion, within the bushing, and over the post. A weld third portion is contiguous to the weld second portion, within the bushing, and surrounding the post. The weld has a first depth measured from the bushing first portion and/or a second depth measured from the bushing second portion. The first depth and/or the second depth meet or exceed a depth minimum threshold.
Resumen de: WO2025131811A1
The invention relates to a method for determining an installation position of a battery module in a battery. The battery (1) comprises a plurality of battery modules (20), a master-BMS unit (10) and, for each battery module (20), a slave-BMS unit (30). The master-BMS unit (10) and the slave-BMS unit (30) each comprise a radio transceiver. The master-BMS unit (10) is designed to an installation position of a selected slave-BMS unit (30_m) in the battery (1) depending on a first matrix data record and a first number of provided first reference matrix data records. The first matrix data record comprises, for a plurality of frequencies or a plurality of specified frequency channels of a specified frequency band, one or more signal transmission quality parameter values for wireless signal transmission between the selected slave-BMS unit (30_m) and the master-BMS unit (10).
Resumen de: WO2025131810A1
The battery (1) comprises a plurality of battery modules (20), a master BMS unit (10) and, for each battery module (20), a slave BMS unit (30). The master BMS unit (10) and the slave BMS units (30) each comprise a radio transceiver. The master BMS unit (10) is designed to determine an installation position of a selected slave BMS unit (30_m) in the battery (1) depending on an indicator for a received signal strength. Alternatively, the master BMS unit (10) is designed to send signal strength indicator information to a superordinate computing unit, wherein the signal strength indicator information comprises the indicator for the received signal strength and causes a position determination module of the superordinate computing unit to determine the installation position of the selected slave BMS unit (30_m) in the battery (1) depending on the indicator for the received signal strength.
Resumen de: WO2025131809A1
A primary network node of a master BMS unit (5) of the battery management system, BMS, and a respective secondary network node of a slave BMS unit (30) of the BMS are configured to communicate with one another using a predefined wireless communication protocol. A matrix of connection quality parameter values is determined depending on provided measured values, wherein the provided measured values each represent a signal quality for a signal received from the primary network node in a respective frequency channel by a respective secondary network node. The frequency channels are classified depending on the connection quality parameter values determined for the frequency channels and the frequency channels assigned to a first group are used for transmission.
Resumen de: WO2025132107A1
A leak testing station (50) for containers (C) accommodated in respective transport pucks (3), characterized in that it comprises a testing carousel (51) that can rotate with continuous motion about a central axis (L) and which comprises a plurality of testing devices (5), each one of which comprises: - a movable bell (53) which is adapted to engage directly the puck (3) so as to form a chamber (67) containing said container (C); - an opening (38) which is in fluid communication with the interior of the puck (3), with the vacuum generation means (54) and with the detection means (55); - inside the bell (53), tracer gas injection means (59) which are adapted to engage, in a gas-tight manner, the intake (30) of the container (C) in the chamber (67).
Resumen de: WO2025132035A1
The present invention relates to a method for synthesis of particles of lithium argyrodite of formula Li7-(a+b)PS6-(a+b+c)OcXaQb, where X and Q are two different halogenated elements selected from F, Cl, Br, I; O is an oxygen atom, where 1≤a+b<2, c is between 0 and 0.25, limits included, a and b not being simultaneously zero, from a lithium reagent Li2Sx, where x is between 1 and 8, a phosphorus reagent Rp selected from P2S5, P4S10, P4S9 and P4S9+n, where n is between 0 and 1, and a halogenated compound selected from LiX and PSX3; and an optional phosphorus-containing or halogen-containing oxygenated reagent selected from P2O5, LiCIO4, LiBrO4, LilO4, by formation of an intermediate solvate-complex compound Li3PS4 solvent, centrifugation, redispersion of the centrifuged phase in an anhydrous solvent, then filtration and washing of the intermediate compound, drying and heat treatment.
Resumen de: WO2025132036A1
The present invention relates to a method for synthesis of thiophosphate particles Li3PS4 or Na3PS4 from a reagent A2S and a phosphorus reagent P2S5, where A is selected from Li or Na, the method comprising at least the following steps, carried out under an inert atmosphere: A) bringing the reagent A2S, previously suspended in at least one first polar solvent (solvent 1), into contact with a suspension containing at least the phosphorus reagent P2S5 in at least one second polar solvent and forming, in suspension under reflux, an intermediate compound in the form of a solvate-complex A3PS4-solvent; B) centrifuging, redispersing in a solvent, then filtering and washing the intermediate compound; C) drying the intermediate compound; d) optional heat treatment.
Resumen de: WO2025131955A1
The invention relates to a flooding valve (10) for a storage battery, comprising a tubular body (20) which is closed by a seal (30) suitable for breaking when an overpressure is applied to the face thereof that faces the outside of the tubular body. According to the invention, this valve comprises a flap (23) which also closes the tubular body and which is suitable for opening towards the outside of the tubular body when an overpressure is applied to the face thereof that faces the seal.
Resumen de: WO2025131950A1
The present disclosure relates to a composition (C) comprising at least one solid sulfide material comprising, at least one alkali metal selected from Li and Na, P and S elements and optionally at least one halogen, and comprising iron (III) oxide-hydroxide (FeOOH) in an amount ranging from 0.05 to 10 % by weight based on the weight of solid sulfide material. It also relates to a process for preparing the composition (C). Finally, the present disclosure pertains to solid electrolyte, secondary battery, electrode and separator comprising the composition (C).
Resumen de: WO2025133319A1
The invention relates to the use of at least one element in a cooling circuit using at least one dielectric fluid, wherein the element comprises: - a first layer consisting of a polyamide composition C, characterised in that the composition C comprises 50 to 99.9% by weight relative to the total weight of the composition of a polyamide matrix; - at least one second layer consisting of a composition selected from a composition comprising at least one polyamide, a composition comprising at least one functional polyolefin or a composition comprising at least one barrier polymer; the dielectric fluid is liquid at atmospheric pressure at 23°C and comprises less than 10% by weight of water and glycol ether; and the first layer is intended to be in contact with the dielectric fluid.
Resumen de: WO2025133264A1
The invention relates to a fused polycrystalline product consisting of constituent elements M, niobium Nb, oxygen O, and optionally nitrogen N, together representing more than 90% of the weight of the product, and, optionally, an additional constituent element making up the remaining weight to 100%, wherein the constituent element M is selected from among titanium (Ti), magnesium (Mg), vanadium (V), chromium (Cr), tungsten (W), zirconium (Zr), molybdenum (Mo), copper (Cu), iron (Fe), gallium (Ga), germanium (Ge), calcium (Ca), potassium (K), nickel (Ni), cobalt (Co), aluminium (Al), tin (Sn), cerium (Ce), tellurium (Te), selenium (Se), silicon (Si), antimony (Sb), yttrium (Y), hafnium (Hf), tantalum (Ta), rhenium (Re), zinc (Zn), indium (In), cadmium (Cd), strontium (Sr), boron (B), lead (Pb), phosphorus (P), bismuth (Bi), sodium (Na), barium (Ba), and mixtures thereof, wherein the atomic proportions of the elements M, niobium Nb, oxygen O, and optionally nitrogen N are defined by the formula MmNbO(1-y)Nyn, and wherein the atomic number subscripts are such that: 0.019 ≤ m ≤ 7.692 and 0 ≤ y ≤ 0.210 and 0.060 ≤ n ≤ 953.850.
Resumen de: WO2025133286A1
The invention relates to the use of at least one element in a cooling circuit using at least one dielectric fluid, wherein: the element comprises at least one layer consisting of a composition C, characterised in that: - the composition C comprises from 50 to 99.9% by weight, relative to the total weight of the composition, of a polyamide matrix having an average C/N ratio of greater than or equal to 7, and is free of fibres and reinforcing fillers; - the dielectric fluid is liquid at atmospheric pressure at 23°C and comprises less than 10% by weight of water and glycol ether; and - the layer is intended to be in contact with the dielectric fluid.
Resumen de: WO2025131951A1
The present invention relates to a lithium secondary battery comprising a) a positive electrode comprising a nickel-rich lithium transition metal oxide as a positive electroactive material, b) a negative electrode, and c) a liquid electrolyte comprising at least one lithium salt dissolved in a solvent mixture comprising at least one organic carbonate and from 0.1 to 50.0% by volume (vol%) of at least one fluorinated acyclic di-ether, vol% being based on the total volume of the solvent mixture. The present invention also relates to use of the liquid electrolyte according to the present invention in improving safety for a lithium secondary battery and to an electronic device, a transportation device or a telecommunication device comprising a lithium secondary battery of the present invention.
Resumen de: WO2025131949A1
The present disclosure relates to a composition (C) comprising at least one solid sulfide material comprising, at least one alkali metal selected from Li and Na, elements P and S and at least one halogen, and further comprising cerium oxide (CeO2) in an amount ranging from 0.05 to 10 % by weight based on the weight of solid sulfide material. It also relates to a process for preparing the composition (C). Finally, the present disclosure pertains to solid electrolyte, secondary battery, electrode and separator comprising the composition (C).
Resumen de: WO2025131717A2
A power supply system includes an external power supply that directly connects to a battery pack of a cordless power tool. Power is supplied to the power tool via a connection between the power supply and the battery pack. Since the power supply is connected directly to the battery pack, the power can be used to charge the battery of the battery pack when the tool is in the "off" state and provide power to the tool motor when the tool is in the on state to extend tool runtime. If the power tool is drawing less power than the power supply can provide, the difference in power is used to charge the battery, and if the tool is drawing more power than the power supply can provide, then the battery supplements the needed extra power.
Resumen de: WO2025133814A1
A coating comprising a filler, an alkali-rich silicate having the formula Li2OxNa2OyK2OzSiO2, and water. The filler comprises alumina, aluminosilicate, calcium silicate, titania, silicon carbide, silicon nitride, boron nitride, hexagonal boron nitride, zircon, kaolin clay, mica, vermiculite, graphite, or combinations thereof. The sum of x, y and z in the alkali silicate is at least 0.35. The mole ratio of the water to alkali silicate in the coating is 4 to 20. Coatings and articles containing the dried coatings can be used as impact resistance thermal barriers in high temperature applications.
Resumen de: WO2025131869A1
The present patent application relates to a method of recovering valuable metals from waste batteries comprising - a pyrolysis step comprising pyrolysis of the waste batteries at a temperature of from about 700°C to about 1300°C, thus obtaining pyrolyzed batteries; - a size reduction step, comprising size reduction of the pyrolyzed batteries; - a smelting step, comprising smelting the pyrolyzed, size reduced waste batteries at temperatures of 1350°C or higher under oxidizing conditions. The method shows improved control of the smelting step and the temperature, reduces the amount of slag generated as well as the release of explosive gas.
Resumen de: WO2025132947A1
The present invention relates to a dry composition comprising at least one active material, at least one binder, optionally at least one conductive agent, characterized in that said at least one binder comprises a fluoropolymer and either a polyamide thermoplastic polymer or polyether block amides or mixture thereof.
Resumen de: WO2025132920A1
The invention relates to a method for opening and discharging an electrochemical cell of an ion insertion-deinsertion battery, comprising a casing in which a negative electrode, a positive electrode, a separator and an electrolyte are accommodated, wherein the method comprises the following operations: opening the electrochemical cell at one or more regions of the casing, wherein at least the one or more opening regions are brought into contact with a liquid L1, then discharging the electrochemical cell by bringing the cell into contact with a liquid L2, and wherein the method is characterised in that: - the liquid L1 comprises an alcohol-based solvent and optionally a redox mediator, while the liquid L2 comprises an alcohol-based solvent together with a redox mediator; and - the liquids L1 and L2 are free of chlorine. The invention also relates to a method for recycling an ion insertion-deinsertion battery implementing this opening and discharging method. The method is intended for use in the recycling of lithium-ion, sodium-ion, potassium-ion, calcium-ion or magnesium-ion batteries.
Resumen de: WO2025132847A1
The present disclosure relates to a continuous process and a production plant for recovering metal salts from an acidic aqueous solution comprising nickel, cobalt, manganese, and lithium cations.
Resumen de: WO2025132693A1
The present invention relates to an anode (110) for an electrochemical energy storage device (100), at least comprising a silicon-carbon composite material (10) in the amount of ≥ 45 wt.-% to ≤ 96 wt.-%, relating to the anode (110), an anisometric flake graphite in the amount of ≥ 2 wt.-% to ≤ 45 wt.-%, relating to the anode (110); carbon nanotubes in the amount of > 0 wt.-% to < 1 wt.-%, relating to the anode (110); and a binder, in particular a polymer binder, in the amount of 0.5 wt.-% to 4 wt.-%, relating to the anode (110).
Resumen de: WO2025132850A1
The present disclosure relates to a continuous process and a production plant for recovering metal salts from an acidic aqueous solution comprising nickel, cobalt, manganese, and lithium cations.
Resumen de: WO2025131162A1
The invention relates to a method for laminating a cylindrical energy-storage cell, comprising the steps of: providing an electrode layer sequence (2) comprising at least an anode, a cathode and a separator; laminating a core region (2) of the electrode layer sequence (1) by connecting a laminate to the core region (2) of the electrode layer sequence (1) under the pressure and the temperature that are produced by a lamination rod (200); and winding the electrode layer sequence (1) to form an electrode coil (120), so that the core region (2) of the electrode layer sequence (1) forms the coil core (190) of the electrode coil (120).
Resumen de: WO2025132824A1
The invention relates to a process for preparing a component of a rechargeable battery, wherein a composition comprising a) water, b) an electrically conductive carbon-based material, and c) a polymer comprising repeating units of polymerized monomers of i) a vinyl aromatic monomer, ii) a polyether acrylate or polyether methacrylate, and iii) an ethylenically unsaturated monomer having 1 or 2 carboxylic acid groups, wherein at least a part of the carboxylic acid groups is present in salt form, is employed for preparing the component.
Resumen de: WO2025132849A1
The present disclosure relates to a continuous process and a production plant for producing a mixed metal hydroxide battery material precursor from battery recycling feeds comprising nickel, cobalt, manganese, and lithium cations.
Resumen de: WO2025132851A1
The present disclosure relates to a continuous process and a production plant for recovering metal salts from an acidic aqueous solution comprising nickel, cobalt, manganese, and lithium cations.
Resumen de: WO2025132786A1
The present disclosure relates to a continuous process and a production plant for preparing an acidic aqueous solution comprising nickel, cobalt, manganese, and lithium cations.
Resumen de: WO2025132788A1
The present invention relates to a system (100) for heat treatment of an electrical energy storage device including electrical energy storage members (22), the heat treatment system (100) including the electrical energy storage device and a dielectric liquid circuit including: - at least one channel (24) for the dielectric liquid to circulate between at least a portion of the electrical energy storage members (22) of the storage device; - a dielectric liquid circulation pump (3); - a heat exchanger (5) configured for heat treatment of the dielectric liquid, the heat treatment system (100) being characterised in that the dielectric liquid circuit includes an expansion tank (1) and in that the heat treatment system (100) includes a variable-volume tank (14) connected to the expansion tank (1).
Resumen de: WO2025132948A1
The present invention relates to a dry composition comprising at least one active material, at least one binder, optionally at least one conductive agent, characterized in that said at least one binder comprises, preferably consists of, a polyamide thermoplastic polymer.
Resumen de: WO2025132848A1
The present disclosure relates to a continuous process and a production plant for recovering metal salts from an acidic aqueous solution comprising nickel, cobalt, manganese, and lithium cations.
Resumen de: WO2025132774A1
The invention relates to a floor (10) for a battery module comprising several cells (4), the floor (10) comprising a wall (12) and receiving spaces (14) which are distributed on the wall (12) and are intended to receive cells (4), characterized in that, in each receiving space (14), the wall (12) has a locally weakened zone (20) forming a seal (15) which is configured to yield when the pressure (P) exerted on the wall (12) exceeds a threshold (S). The invention also relates to an assembly (1). The invention also relates to a method of implementing the floor (10).
Resumen de: WO2025131160A1
The invention relates to a cover assembly (140) for a cell housing (110) of an energy-storage cell (100). In the installed state, the cover assembly (140) is designed to allow the cell housing (110) to be filled with an electrolyte (190). The cover assembly (140) has a terminating plate (120) with a securing assembly (200) which has an opening region (220). A first gas barrier (240) is designed to close the opening region (220) in a gas-tight manner prior to the process of filling the cell housing (110) and to be penetrated by a filling element, in order to fill the cell housing (110), such that an opening (221), through which the electrolyte (190) can be filled into the cell housing (110), is formed in the first gas barrier (240). Additionally, a second gas barrier (250) is designed to close the opening (221) in a gas-tight manner after the process of filling the cell housing (110).
Resumen de: WO2025131161A1
A method for producing an electrochemical storage cell is presented. The method comprises the steps of: providing a flat, substantially circular contact disc (200) having at least two contact segments (201, 202), which each form a circular cutout in the contact disc (200) and are arranged symmetrically around the centre point (204) of the contact disc (200), and wherein between the contact segments (201, 202) circular cutouts (205, 206) are removed from the contact disc (200) and are arranged symmetrically around the centre point (204) of the contact disc (204); arranging an electrode coil (190) in a cylindrical cell housing (110), wherein the electrode coil (190) comprises a series of electrode layers (1); contacting the electrode coil (190) by bringing a peripheral region of the series of electrode layers into contact with a first face of the contact segments (201, 202) of the contact disc (200); and welding the electrode coil (190) to the contact disc by applying welding arcs (209) to a second face (208) of the contact segments (201, 202) that is facing away from the first face of the contact disc (200), wherein the welding arcs (209) are arranged at least partially concentrically around the centre point (204).
Resumen de: WO2025132710A1
A first aspect of the present disclosure is related to a battery cell (100), comprising: - an electrode stack (110) with two electrode layers, an anode layer and a cathode layer, wherein each electrode layer comprises a current collector (112); - a can (102) with a bottom (104) and a top (106) that comprises the electrode stack (110); - a lid (120) arranged on the top (106) of the can (102); - a lid (120) arranged on the bottom (104) of the can (102); wherein at least one lid (120) comprises one or more elevations (122) oriented towards the electrode stack (110) through which it is directly connected to one or both current collectors (112) of the electrode stack (110).
Resumen de: US2025210690A1
Disclosed is a solid electrolyte membrane, a method for manufacturing the same, and an all-solid-state battery including the same. More specifically, the solid electrolyte membrane includes a first solid electrolyte layer including a first solid electrolyte and a first fibrous binder and a second solid electrolyte layer including a second solid electrolyte and a second fibrous binder, stacked adjacent to each other, wherein the weight of the first fibrous binder relative to the total weight of the first solid electrolyte layer is less than the weight of the second fibrous binder relative to the total weight of the second solid electrolyte layer. Since the weight of a first fibrous binder included in the first solid electrolyte layer is less than the weight of the second fibrous binder included in the second solid electrolyte layer, the strength may be improved without lowering the ionic conductivity of the solid electrolyte membrane.
Resumen de: WO2025131168A1
The invention relates to a method for short-circuit testing an electrochemical storage cell, comprising the steps of: providing an electrochemical storage cell (1) having an electrolyte (4), freezing the electrochemical storage cell (1) so that the electrolyte (4) becomes non-conducting, applying a measurement voltage, and detecting a short circuit of the electrochemical storage cell (1) as a function of the measurement voltage.
Resumen de: WO2025131911A1
The invention relates to a battery system (1) comprising: a plurality of battery modules (2), which each have sensors (3) for the sensor-based recording of measurement series of physical quantities of battery cells (5) located in the battery modules (2) and have a battery management system, BMS (4); and an energy management system, EMS (7), which is assigned to the plurality of battery modules (2) and is configured to obtain charge states, SOCs, of each battery module (2-1, 2-n) of the plurality of battery modules (2), which charge states are estimated by the particular BMS (4) and are based on the measurement series, and to operate the plurality of battery modules (2) depending on the estimated SOCs, wherein the battery system (1) is configured to adapt control of the plurality of battery modules (2) using the EMS (7) on the basis of corrected SOCs.
Resumen de: WO2025132644A1
Method for disassembling a first and a second battery module in an energy storage arrangement, the first (2) and second (3) battery modules each comprising at least one battery pack, wherein the battery pack of the first battery module comprises a first rod (90) extending through a through hole at a transverse side of the battery pack, the method comprising; - providing a separation tool (10) to the laterally outer side of the first battery module, the separation tool comprising a threaded through hole wherein a threaded pusher device (16) is guided; - aligning the threaded pusher device with a second end portion of the first rod and connecting the separation tool to the laterally outer side of the first battery module (2); - rotating the threaded pusher device such that the pushing force from the threaded pusher device moves the first rod inwardly, thereby causing the first battery module (2) to move away from the second battery module (3).
Resumen de: WO2025131417A1
A charger (100) for a vehicle, wherein at least one first charging circuit (140) and one second charging circuit (150) are connected between an input connection unit (110) and an output connection unit (120), wherein the second charging circuit (150) is connected at the input end to a switching element (160) which is designed to connect the second phase (L2) to the second charging circuit (150) via the input connection unit (110) in a first switch position and to connect a further phase (LW) of a V2L socket (170) to the second charging circuit (150) in a second switch position.
Resumen de: WO2025136508A1
Electrochemical cells that convert chemical energy into electrical energy and a battery pack or module that contains two or more of these electrochemical cells with each electrochemical cell being formed as a pouch cell, a cylindrical cell, or a prismatic cell. The battery pack or module includes a zeolite material doped with a rare earth metal oxide, with a precious metal oxide, or a combination thereof, such that the zeolite material is configured to trap hydrocarbon vapors or gases. The zeolite material is located either within or external to the pouch cell, cylindrical cell, or prismatic cell.
Resumen de: WO2025136393A1
The invention relates to an incident management system and method for monitoring a battery energy storage system and providing technical information related to an abnormal event in the battery energy storage system to a plurality of different users in different locations and with different requirements. The incident management system comprises one or more processing units configured to receive data from a plurality of sensors, the data encoding measured properties of the battery energy storage system, and process the received data to identify an abnormal event in the battery energy storage system, obtain information about the abnormal event, and determine a current stage of the abnormal event on a pre-defined incident progress timeline, the pre-defined incident progress timeline comprising a plurality of stages. An operator user interface for use by an operator of the battery energy storage system is configured to output information about the abnormal event. A first responder user interface for use by a first responder is configured to output a subset of the information about the abnormal event and output the current stage of the abnormal event on the incident progress timeline.
Resumen de: WO2025129644A1
The present disclosure relates to terminal adaptor connectable to a battery, the battery comprising a positive battery terminal and a negative battery terminal each located on a first end face of the battery. The terminal adaptor comprises: an abutment face configured to abut the first end face of the battery in use; and a terminal face opposite the abutment face, the terminal face comprising a positive terminal region and a negative terminal region electrically insulated from the positive terminal region. The positive terminal region is electrically connectable to the positive battery terminal and the negative terminal region is electrically connectable to the negative battery terminal. An insulating element is interposed between the positive terminal region and the negative terminal region to electrically insulate the positive terminal region from the negative terminal region. The insulating element abuts and upstands from the terminal face. The present invention also provides a battery assembly and a kit of parts each comprising the terminal adaptor and the battery, and an aerosol generating apparatus.
Resumen de: WO2025131317A1
Aspects and embodiments of the present invention provide methods for closed-loop control of apparatus and systems for electrode manufacturing. Particularly, a method of controlling a coating apparatus and a method of controlling an electrode manufacturing system are provided. A closed-loop control method of the coating apparatus, which is preferably based on in-line measurement of quality parameters, and a closed-loop overall control method of the electrode manufacturing system, which is preferably based on in-line measurement of quality parameters, allows for improvements in material and energy efficiency, improved accuracy and reliability in achieving quality, performance and safety targets of an electrochemical energy storage device.
Resumen de: WO2025131312A1
Aspects and embodiments of the present invention provide methods for closed-loop control of apparatus and systems for electrode manufacturing. Particularly, a method of controlling a slurry mixing apparatus and a method of controlling an electrode manufacturing system are provided. A closed-loop control method of the slurry mixing apparatus which is preferably based on in-line measurement of quality parameters, and a closed-loop overall control method of the electrode manufacturing system which is preferably based on in-line measurement of quality parameters allows for improvements in material and energy efficiency, improved accuracy and reliability in achieving quality, performance and safety targets of an electrochemical energy storage device.
Resumen de: WO2025131310A1
Aspects and embodiments of the present invention provide methods for closed-loop control of apparatus and systems for electrode manufacturing. Particularly, a method of controlling a powder feeding apparatus and a method of controlling an electrode manufacturing system are provided. A closed-loop control method of the powder feeding apparatus which is preferably based on in-line measurement of quality parameters, and a closed-loop overall control method of the electrode manufacturing system, which is preferably based on in-line measurement of quality parameters, allows for improvements in material and energy efficiency, improved accuracy and reliability in achieving quality, performance and safety targets of an electrochemical energy storage device.
Resumen de: EP4576336A1
A battery module (1) for a battery pack (100) is disclosed, comprising:- a plurality of battery cells (2), comprising at least one group of stacked prismatic battery cells (21-24) which are stacked next to each other in the longitudinal direction (L),- a first and a second separate longitudinally extending beam member (31, 32) being offset from each other in the width direction (W),- a plurality of separate crossbeam members (41-45) which are offset from each other in the longitudinal direction (L), wherein each crossbeam member extends in the width direction (W) and wherein the plurality of separate crossbeam members (41-45) mechanically connects the first and second separate longitudinally extending beam members (31, 32) together,- a cooling plate bottom member (5), provided at a bottom portion of the first and second separate longitudinally extending beam members (31, 32) and the plurality of separate crossbeam members (41-45).
Resumen de: EP4576327A1
A battery module (1) for a battery pack (100) is disclosed, comprising:- a first and a second longitudinal frame member (51, 52) extending in the longitudinal direction (L),- at least three crossbeam frame members (61, 62, 63, 64) extending in the width direction (W),- at least two separate cell stacks (2, 2'), wherein each cell stack (2, 2') comprises a set of cylindrical battery cells (3) and a holder (4, 4') in which the set of cylindrical battery cells (3) are received. The disclosure also relates to a battery pack (100) and a vehicle (200)
Resumen de: EP4575024A1
The present invention provides a method of using a chlorination method to recycle metal elements in lithium batteries, including the following steps: Step 1, organic components in the lithium battery are removed, so as to obtain a mixture of powders containing the positive-electrode material; Step 2, the powders are heated and chlorinated by chlorine, at a heating temperature of 500-1200°C; Step 3, gas products of the chlorination are output through a gas-solid filtration device, and then two stages of desublimation are used, wherein the temperature during the first-stage desublimation is set to be below 306°C and above 178°C, so that FeCl<sub>3</sub> is desublimated into solid deposition, which is used for recycling Fe element; the temperature of the second-stage desublimation is set to be below 178°C, so that AlCl<sub>3</sub> is desublimated into solid deposition, which is used for recycling Al element; Step 4, solid products of the chlorination are taken out for recycling the Li element.
Resumen de: EP4575314A1
The present invention provides a method for recycling lithium batteries, including the following steps: Step 1, pretreating the lithium batteries, Step 2, a mixture after the pretreating includes: positive electrodes of batteries, negative electrodes of batteries, and electrolyte; the mixture is subjected to oxygen-free pyrolysis at a pyrolysis temperature of 400-600°C; Step 3, by using a gas-solid filtration device, gas products from the pyrolysis are separated and outputted, wherein anti-corrosion material(s) is(are) used to form filter element of the gas-solid filtration device; Step 4, taking out solid products from the pyrolysis, so as to recycle metal elements; the metal elements include but are not limited to one or more selected from the following: lithium, aluminum, copper, iron, nickel, cobalt, manganese.
Resumen de: EP4575022A1
The present invention provides a method of using a wet method to recycle metal elements in lithium batteries, including the following steps: Step 1, pretreating lithium batteries, so as to obtain a mixture of powders containing positive-electrode materials; Step 2, acid leaching to obtain leachate; Step 3, if the to-be-recycled lithium battery contain a lithium iron phosphate battery, the solid products, obtained after acid leaching and solid-liquid filtration, are heated in an oxygen-containing atmosphere, so as to burn up carbon, then the left is ferric phosphate; Step 4, if the to-be-recycled lithium battery contains a ternary lithium battery, the leachate, obtained after acid leaching and solid-liquid filtration, is sent to an extraction step, wherein diisooctyl phosphate is used as extraction agent, so as to obtain a raffinate containing Li element and an organic phase containing Ni/Co/Mn elements.
Resumen de: WO2024038136A1
The invention relates to an improved cathode material comprising a compound having the formula LIMPO4, M being at least one of Fe, V, Mn, Co and Ni, said compound comprising (i) secondary particles formed by agglomeration of (ii) primary particles and (iii) pores between secondary and primary particles, wherein the primary particles have a plate-like morphology and a mean particle size d50 in the range of from 20 to 150 nm and the secondary particles have a spherical morphology and a mean particle size d50 in the range of from 1 to 10 μm.
Resumen de: EP4576405A1
A cylindrical type secondary battery according to an embodiment of the present invention may include a cylindrical can provided to accommodate an electrode assembly, and a top cap provided to cover an opened upper portion of the cylindrical can. The top cap may include a first conductive part, a second conductive part disposed below the first conductive part and electrically connected to the electrode assembly, and an intermediate layer part including a third conductive part disposed between the first conductive part and the second conductive part to be in contact with each of the first conductive part and the second conductive part, wherein, when a temperature of the third conductive part is a predetermined temperature or higher, the third conductive part is melted so that the contact between the third conductive part and the first conductive part or the second conductive part is released. The intermediate layer part may include a gasket part that is disposed between the first conductive part and the second conductive part and defines a through-region between the gasket part and the third conductive part in a state in which the third conductive part is disposed to pass through the intermediate layer part.
Resumen de: EP4576349A1
The present invention, in order to improve stability by directing a venting direction, provides a battery cell and a battery module comprising same, comprising: an electrode assembly; a case for accommodating the electrode assembly; an electrode terminal electrically connected to the electrode assembly; and a sealing portion to which an edge of the case is joined, wherein the sealing portion comprises a first sealing portion in which the electrode terminal is embedded and a second sealing portion in which the electrode terminal is not embedded, a folding portion is formed on at least a part of the second sealing portion, and a holding member coupled to the folding portion is included.
Resumen de: EP4576486A1
Die Erfindung betrifft ein Batteriepack (30) für eine mobile Werkzeugmaschine (10), beispielsweise eine Handwerkzeugmaschine, umfassend mehrere Batteriezellen (38) sowie ein Batteriemanagementsystem (52). Es ist dadurch gekennzeichnet, dass das Batteriepack (30) wenigstens einen Schalter (46, 48, 50) aufweist, der vom Batteriemanagementsystem (52) steuerbar ist und der eingerichtet ist, eine Untergruppe (32, 34, 36) der Batteriezellen (38) anzuschalten oder abzuschalten. Ferner betrifft die Erfindung ein Batteriemanagementsystem (52). Sie ermöglicht eine kostengünstige Bereitstellung elektrischer Energie für eine mobile Werkzeugmaschine (10).
Resumen de: EP4575017A1
The present patent application relates to a method of recovering valuable metals from waste batteries comprising- a pyrolysis step comprising pyrolysis of the waste batteries at a temperature of from about 700°C to about 1300°C, thus obtaining pyrolyzed batteries;- a size reduction step, comprising size reduction of the pyrolyzed batteries;- a smelting step, comprising smelting the pyrolyzed, size reduced waste batteries at temperatures of 1350°C or higher under oxidizing conditions. The method shows improved control of the smelting step and the temperature, reduces the amount of slag generated as well as the release of explosive gas.
Resumen de: CN119731462A
A connection assembly (1) for connecting a pipe element (2) to an element (3) of a temperature control device, comprising a pipe element (2) having a tubular portion (4) and a thickened portion (5) formed at one end of the pipe element (2), an element (3) having at least one passage (6), and a connection piece (7). Wherein the connecting piece (7) has a recess (8) in which the pipe element (2) is arranged in such a way that the connecting piece (7) is fixed to the pipe element (2) in a form-fitting and loss-proof manner by means of the thickening (5), the connecting piece (7) and the element (3) each have a thread (9, 10), the threads (9, 10) engage and form a threaded connection (11), and the thickening (5) forms a contact (12) and, on the side facing the pipe element (2), the connecting piece (7) and the element (3) are in contact with each other. A contact portion (12) is connected to the channel (6), an abutment portion (13) is connected to the channel (6), the cross-section of the abutment portion (13) enlarges in the direction towards the pipe element (2), the contact portion (12) is in sealing contact with the abutment portion (13), the pipe element (2) is connected to the channel (6) in a fluid-conducting manner, and the threaded connection (11) presses the contact portion (12) against the abutment portion (13) by means of a form-fitting connection of the connecting piece (7) and the pipe element (2).
Resumen de: CN119731121A
Disclosed is a process for the manufacture of a (oxy) hydroxide of TM wherein TM is a metal wherein at least 97 mol-% is a transition metal, and wherein TM comprises manganese and nickel, and wherein at least 50 mol-% of TM is manganese, and wherein TM is a metal wherein at least 97 mol-% is a transition metal. The invention relates to a process for the preparation of a metal, comprising the following steps: (a) providing an aqueous solution (alpha) of at least one water-soluble salt of such a metal and an aqueous solution (beta) comprising an alkali metal hydroxide selected from NaOH and KOH, (b) combining the solutions (alpha) and (beta) at a pH value in the range of 9.5 to 10.3, in which step (b) is carried out using at least one coaxial mixer comprising two coaxially oriented tubes, introducing the aqueous solutions (beta) and (alpha) into the stirring vessel through these conduits, thereby precipitating the (oxygen) hydroxide of TM, (c) recovering and drying said (oxygen) hydroxide of TM.
Resumen de: CN119301809A
The invention relates to a connecting device (16) for battery cells (12, 14) of a power battery (10), which connecting device is provided for compensating for errors between two battery cells (12, 14) of the power battery (10) in at least two spatial directions, comprising: a busbar (26), which is provided for electrically connecting with a first end (22) thereof to a first battery cell (12), a busbar (26) which is electrically connected with the first battery cell (12) by means of its first end (24) and with the second battery cell (14) by means of its second end (24), thus electrically connecting the two battery cells (12, 14) to each other; and a fastening means (34), by means of which the connecting device (16) can be fastened in different relative positions to a housing component or a structural component (18) of the power battery (10) for error compensation (30).
Resumen de: EP4576361A1
A battery pack according to the present invention includes a battery module, and a pack housing configured to accommodate the battery module, wherein the pack housing may include a lower case in which the battery module is accommodated, an upper case coupled to cover an upper opening of the lower case, a gasket provided on an interface between the lower case and the upper case, and an insulating member disposed between the battery module and the gasket.
Resumen de: EP4575538A1
A diagnosis system for diagnosing a state of a battery according to various embodiments includes the battery and a diagnosis apparatus configured to diagnose the state of the battery, in which the diagnosis apparatus is further configured to predict a side reaction rate of an electrode, based on an open circuit voltage (OCV) model defined with a state of charge (SOC) of the battery and an accumulative side reaction amount of the electrode and predict a degradation state of the battery based on the side reaction rate.
Resumen de: EP4574854A1
The present invention relates to a polymer electrolyte for a battery cell comprising i) a first polymaleimide polymer comprising first polymaleimide repeat units, wherein the first polymaleimide repeat units are according to R<3>(Q)µ, wherein R<3>, individually, is a polyether or C(H)h(CxH2x+1)i((CH2)ψ)j(CH2OC(O)(CH2)σ)k, wherein i is between 0 and 2; j and k, individually, are between 0 and 4; h is 4 - i - j - k; h + i is between 0 and 2; x is between 1 and 6; ψ is between 1 and 10; σ is between 1 and 20; µ, individually, is at least 2; and Q, individually, is according to formula (I):wherein R<2>, individually, is C1-C16 alkyl, C2-C16 alkenyl, C2-C16 alkynyl or aryl; R<4>, individually, is H, C1-C16 alkyl, C2-C16 alkenyl, C2-C16 alkynyl; Q is covalently bound to R<3> via the sulphur atom of Q; ii) a second polymaleimide polymer comprising second polymaleimide repeat units according to formula (II)wherein R<1>, individually, is H, C1-C16 alkyl, C2-C16 alkenyl, C2-C16 alkynyl; m, individually, is 1 to 5; M<+> is independently an alkali metal ion; X, individually, is H, F, C1-C16 alkyl, C1-C16 fluoroalkyl.
Resumen de: EP4574898A1
The present invention relates to a polymer electrolyte for a battery cell comprising a polymaleimide copolymer comprising i) first polymaleimide repeat units according R<3>(Q)µ, wherein R<3>, individually, is C(H)h(CxH2x+1)i((CH2)ψ)j(CH2OC(O)(CH2)σ)k or a polyether, wherein i is between 0 and 2; j and k, individually, are between 0 and 4; h is 4 - i - j - k; the sum of h and i is between 0 and 2; x is between 1 and 6; ψ is between 1 and 10; and σ is between 1 and 20; µ, individually, is at least 2; Q, individually, is according to formula (I):wherein R<2>, individually, is C1-C16 alkyl, C2-C16 alkenyl, C2-C16 alkynyl or aryl; R<4>, individually, is H, C1-C16 alkyl, C2-C16 alkenyl, C2-C16 alkynyl; Q is covalently bound to R<3> via the sulphur atom of Q; ii) second polymaleimide repeat units according to formula (II)wherein R<1>, individually, is H, C1-C16 alkyl, C2-C16 alkenyl, C2-C16 alkynyl; m, individually, is 1 to 5; M<+> is independently an alkali metal ion; X, individually, is H, F, C1-C16 alkyl, C1-C16 fluoroalkyl; wherein the first polymaleimide repeat units and the second polymaleimide repeat units are covalently bonded to one another.
Resumen de: EP4576232A1
The present invention relates to the working principle and production methods for the pre-expansion of sulfur and/or other chalcogenides such as selenium or tellurium, and/or a mixture of any two or more. The present invention further relates an electrode/cathode comprising sulfur and/or a mixture of sulfur allotropes, for example, crystalline, glassy, amorphous, and/or polymeric (e.g., β-, γ-, and/or ω-phasic) sulfur and/or a mixture of any two or more sulfur allotropes, wherein the sulfur is photonically/electronically/thermally pre-expanded to a state where it has a density equivalent to a metal sulfide, such as Li2S. The expansion is carried out before electrode/cathode fabrication for the realization of alkali and/or alkali earth metal/ion batteries, such as LiS batteries. The resulting pre-expanded chalcogenides such as sulfur has an artificially generated internal cavities/porosity in addition to an open/external porosity, wherein the internal cavities limits and/or compensates the expansion of sulfur further or expansion partially/negligibly during chemical/electrochemical reactions, such as lithiation or sodiation, with mono, di, and trivalent metal ions. A thus fabricated electrode/cathode comprising pre-expanded sulfur and/or chalcogenides allows precise control over density and volume fluctuations and withstands the chemical and electrochemical reactions that occur during battery operation. Additionally, leads to improved performance, and longevity and offers s
Resumen de: CN119731842A
The invention relates to a battery structure comprising a protective device, a protective device for a battery housing and a fiber-matrix semi-finished product for producing the protective device.
Resumen de: CN119894829A
Disclosed herein are methods of preparing lithium transition metal oxide cathode materials for secondary batteries and other applications from elemental feedstocks and products thereof. The methods disclosed herein may include mixing at least one transition metal in elemental form with a lithium source in a dry solid state mixing process followed by a sintering step to form a lithium transition metal oxide cathode material.
Resumen de: EP4576311A1
Disclosed is a lead-acid battery including: a positive electrode plate; a negative electrode plate; a separator interposed between the positive electrode plate and the negative electrode plate; and an electrolyte solution, in which the positive electrode plate includes a positive electrode material, the negative electrode plate includes a negative electrode material, the negative electrode material includes a Bi element, a content of the Bi element in the negative electrode material is 100 ppm or more and 300 ppm or less on a mass basis, the separator includes a crystalline region and an amorphous region, a ratio R represented by A<sub>1</sub>/(A<sub>1</sub> + A<sub>2</sub>) is 0.50 or more in an X-ray diffraction spectrum of the separator, A<sub>1</sub> is an area of a first diffraction peak having a maximum peak height among diffraction peaks corresponding to the crystalline region, and A<sub>2</sub> is an area of a second diffraction peak having a second highest peak height among the diffraction peaks corresponding to the crystalline region.
Resumen de: EP4576341A1
A battery cell according to an embodiment of the present invention may include: an electrode assembly; a battery case configured to accommodate the electrode assembly; an electrode lead connected to the electrode assembly to protrude to the outside of the battery case; and an insulating case which is configured to accommodate the battery case and in which a slit through which the electrode lead passes is defined.
Resumen de: EP4576314A1
The present disclosure relates to a battery control unit and a high voltage power supply system comprising the battery control unit. The battery control unit (100) comprises a switch device (102), and an assembled circuit (130), which is mounted on a circuit board (128). The assembled circuit (130) includes detection circuitry (186), which is configured to detect at least one operational parameter of the switch device (102), processing circuitry (184), which is configured to control the operation of the switch device (102) in accordance with the at least one operational parameter detected by the detection circuitry (186), and a plurality of detection contacts (166, 168, 170, 172, 174, 176, 178, 180, 182) for detecting the at least one operational parameter of the switch device (102). The further battery control unit (100) comprises a bus bar arrangement, which comprises an input bus bar (104), which is conductively coupled to an input terminal of the switch device (102), and an output bus bar (116), which is conductively coupled to an output terminal of the switch device (102), wherein the circuit board (128) is disposed with respect to the bus bar arrangement such that the plurality of detection contacts (166, 168, 170, 172, 174, 176, 178, 180, 182) abut against corresponding contact surfaces being provided on the input bus bar (104) and on the output bus bar (116).
Resumen de: EP4576244A1
The present invention relates to an anode (110) for an electrochemical energy storage device (100), at least comprising- a silicon-carbon composite material (10) in the amount of ≥ 45 wt.-% to ≤ 96 wt.-%, relating to the anode (110),- an anisometric flake graphite in the amount of ≥ 2 wt.-% to ≤ 45 wt.-%, relating to the anode (110);- carbon nanotubes in the amount of > 0 wt.-% to < 1 wt.-%, relating to the anode (110); and- a binder, in particular a polymer binder, in the amount of 0.5 wt.-% to 4 wt.-%, relating to the anode (110).
Resumen de: EP4576289A1
A handling device for battery units (B) comprises a vacuum chamber. The vacuum chamber comprises in turn a base plate (2) and an engaging portion (3). The base plate (2) presents a terminal connectable to a vacuum source and the engaging portion (3) defines at least one opening in fluid connection with the terminal. The engaging portion (3) is configured to engage in an airtight manner an open end of a vacuum bag (V) containing at least one battery unit (B) so that the vacuum chamber can be overall activated in a use configuration to remove air from the vacuum bag (V) compressing the battery unit (B).
Resumen de: EP4574554A1
A computer system (210) for controlling an energy storage system (ESS, 200) with heterogenous battery packs (110) is provided. The system is configured to, using a processing circuitry (220): obtain pack-specific minimum and maximum allowed operating voltages (Vi,lim) for each battery pack; determine joint ESS-specific minimum and maximum voltage limits satisfying each of the respective pack-specific minimum and maximum allowed operating voltages for all of the battery packs; obtain actual state of charge, SoC, values (SOCi) for each battery pack; determine rescaled SoC values ( SOCi∗) by scaling the actual SoC value for a battery pack to a range defined by an estimated SoC value of the battery pack at the ESS-specific minimum and maximum voltage limits, and control the ESS using the rescaled SoC values for the battery packs. A corresponding ESS, vehicle, computerimplemented method and computer program product/storage medium are also provided.
Resumen de: CN119731044A
The subject matter described herein relates to a battery pack (100) comprising a battery module (102) and an outer housing (101). The battery module (102) comprises a battery cell support (103), a plurality of battery cells (301) and a plurality of cell terminal connectors. And the flame-retardant sheet (201) is placed above the plurality of battery cell terminal connectors. And the flame-retardant sheet (201) is placed in the outer shell (101). Each battery cell (202) of the plurality of battery cells (301) is covered with a conduit, and a fire extinguishing agent is disposed within the conduit (202).
Resumen de: EP4576254A1
The present invention relates to a lithium metal anode (1, 10, 11) for a battery, comprising an anode active substrate (2) comprising an anode current collector (7) and a layer (8) substantially consisting of lithium metal provided on a surface (4) of the anode current collector (7), and a first lithium metal anode protective layer (3) provided on the layer (8) substantially consisting of lithium metal, characterized in that the first lithium metal anode protective layer (3) comprises lithium iodide (Lil) and lithium fluoride (LiF). The present invention further relates to methods of producing such lithium metal anodes.
Resumen de: EP4576320A1
The disclosure relates to a heat-transfer system (10) for a battery (2) having at least one battery unit (11), the heat-transfer system (10) comprising a first heat-conducting element (12) for thermal connection to the at least one battery unit (11), the heat-transfer system (10) further comprising a second heat-conducting element (13) for thermal connection to a battery external environment, and the heat-transfer system (10) comprising an actuator (18), the actuator (18) being configured to alter the position the first heat-conducting element (12) between a first position for connecting the first heat-conducting element (12) to at least one of the second heat-conducting element (13) and the at least one battery unit (11) and a second position for disconnecting the first heat-conducting element (12) from at least one of the second heat-conducting element (13) and the at least one battery unit (11), and the first heat-conducting element (12) being configured to receive heat from the at least one battery unit (11) and transfer it to the second heat-conducting element (13) in the first position.
Resumen de: EP4576356A1
The present disclosure relates to an energy storage arrangement. The energy storage arrangement comprises a sleeve arranged in a first and a second through hole, the sleeve being arranged through a first end surface of a first set of energy storage modules and through a first end surface of a second set of energy storage modules and is connected to a first and a second rod.
Resumen de: EP4576367A1
The present disclosure relates to an electrical storage system (ESS) (1) comprising a plurality of battery packs (2a,2b,2c) arranged side-by-side, each of the battery packs (2a,2b,2c) being spaced from an adjacent battery pack (2a,2b,2c) such that the side surfaces (3a,3b,3c) of the adjacent battery packs (2a,2b,2c) form inter-battery pack gas channels (4) and wherein each of the battery pack (2a,2b,2c) is provided with a side gas vent opening (5a,5b,5c) to one of the inter-battery pack gas channels (4).
Resumen de: EP4574338A1
The present disclosure relates to a method for disassembling a first and a second battery module (2, 3) in an energy storage arrangement, the first and second battery modules each comprising at least one battery pack, wherein the battery pack of the first battery module comprises a first rod (90) extending through a through hole at a transverse side of the battery pack, the method comprising;- providing a separation tool (10) to the laterally outer side of the first battery module, the separation tool comprising a threaded through hole wherein a threaded pusher device is guided;- aligning the threaded pusher device (16) with a second end portion of the first rod and connecting the separation tool to the laterally outer side of the first battery modules;- rotating the threaded pusher device such that the pushing force from the pushing-member moves the first rod inwardly, thereby causing the first battery module to move away from the second battery module.
Resumen de: EP4576263A1
This application provides a negative electrode material. The negative electrode material includes a silicon-carbon material. The silicon-carbon material contains element silicon, element carbon, element oxygen, and a metal element. Based on a mass of the silicon-carbon material, a mass percentage of element silicon is a, where 10%≤a≤90%; and a mass percentage of the metal element is x, where 0.01%
Resumen de: EP4575986A1
This application relates to a defect inspection method, system and apparatus, a device, a storage medium, and a product. In response to an inspection instruction for a target material, a camera device is controlled to acquire a two-dimensional image and a three-dimensional image of the target material, and a defect inspection result of the target material is determined based on the two-dimensional image and the three-dimensional image of the target material. In this method, because the camera device is a structured light camera device integrating a two-dimensional image acquisition function and a three-dimensional image acquisition function, the two-dimensional image and the three-dimensional image can be acquired without the need of switching camera devices, improving the convenience of defect inspection of the target material. Moreover, the use of the same camera device to acquire the two-dimensional image and the three-dimensional image ensures that the two-dimensional image and the three-dimensional image are in the same coordinate system, improving the efficiency of defect inspection of the target material. In addition, the use of the two-dimensional image and the three-dimensional image in two different dimensions for defect inspection of the target material improves the accuracy of the defect inspection.
Resumen de: EP4576312A1
In accordance with a first aspect of the present disclosure, a battery module is provided, comprising: one or more battery cells; a battery module controller operatively coupled to the battery cells, wherein said battery module controller is configured to determine a state of the battery cells; a secure element operatively coupled to the battery module controller, wherein the secure element is configured to store data indicative of the state of the battery cells as determined by the battery module controller; an interface unit operatively coupled to the secure element, wherein said interface unit is configured to receive a request for evaluating said data from an external user device. In accordance with a second aspect of the present disclosure, a corresponding method of operating a battery module is conceived.
Resumen de: EP4576326A1
This invention relates to a battery cell holder for thermal management, in particular for immersion thermal management, of a plurality of battery cells, comprising a first shell, a second shell, wherein the first shell and the second shell are attachable to each other forming a sealed inner space for arranging a plurality of battery cells within said inner space and wherein a thermal management fluid can be applied to the inner space for thermal management, preferably cooling the battery cells, whereina) at least one holding element separated from the first and second shell being adapted to fix a position of at least two of said plurality of battery cells and/or whereinb) the first shell and/or the second shell are provided with fixing elements adapted to provide a fixing function for said plurality of battery cells, wherein the first shell and/or the second shell comprise at least one thermal management channel for thermal management of at least a part of the battery cells fixed by the first shell and/or the second shell.
Resumen de: EP4574512A1
A charging system (100) of a vehicle, the charging system comprising: an energy storage (102); a charging connector (104) configured to be connected to an external charger (106) for charging the energy storage; a vehicle energy storage and/or charging circuitry (126) cooling system (108) having a fluid cooling circuit; a heat exchanger (110) thermally coupled to the fluid cooling circuit; and a coolant connector (112) configured to connect the heat exchanger to an external waste heat recovery system (114).
Resumen de: EP4576360A1
A battery system with at least one energy storage unit, a support element, and a structure element is described. The support element extends in a first direction and is made from a first material. The support element couples a unit bottom surface of the at least one energy storage unit to a base surface of the battery system. The structure element is made from a second material and arranged adjacent to the support element at at least two sides of the structure element. The two sides are opposite to each other in a second direction perpendicular to the first direction.
Resumen de: EP4576348A1
A first aspect of the present disclosure is related to a battery cell (100), comprising:- an electrode stack (110) with two electrode layers, an anode layer and a cathode layer, wherein each electrode layer comprises a current collector (112) ;- a can (102) with a bottom (104) and a top (106) that comprises the electrode stack (110);- a lid (120) arranged on the top (106) of the can (102);- a lid (120) arranged on the bottom (104) of the can (102);wherein at least one lid (120) comprises one or more elevations (122) oriented towards the electrode stack (110) through which it is directly connected to one or both current collectors (112) of the electrode stack (110).
Resumen de: EP4576343A1
Embodiments of the present application provide a battery cell, a battery and an electrical apparatus. The battery cell includes a case, an electrode assembly, an end cover, a fixing member, an insulating plate, and a barrier member. The case has an opening. The electrode assembly is accommodated in the case. The end cover is configured to cover the opening and is connected to the case. The fixing member is arranged on one side of the end cover facing the electrode assembly and is connected to the end cover. The insulating plate is at least partially arranged between the electrode assembly and the case. The insulating plate is connected to the fixing member. The barrier member is connected to at least one of the end cover and the barrier member. The barrier member is configured to isolate at least a portion of the insulating plate from the connection position between the end cover and the case. By arranging the barrier member to isolate the insulating plate from the connection position, the position where the case is connected to the end cover can be in a relatively independent environment, so that interference of the insulating plate to the connection position can be reduced, and connection quality between the case and the end cover can be improved, thereby improving quality of the battery.
Resumen de: WO2024040121A2
Means for maintaining temperatures of lithium-containing electrochemical cells, inside electronic devices, and within containers within the desired temperature range without requiring the use of cooling liquids. Temperature is maintained through the use of coatings and at least one fan. The coating features at least 30% particles consisting of encapsulated solid substances that change phase at temperatures between 25 and 45 degrees Celsius. By means of the present invention, thermal management of lithium-containing electrochemical cells, within enclosures, inside structures and inside containers can be provided with recyclable coatings.
Resumen de: US2025055028A1
A solid-state battery includes a cathode; an anode; and a solid-state electrolyte layer disposed between the cathode and the anode, where the cathode, the anode, and the solid-state electrolyte layer are comprised of flexible materials to form a thread.
Resumen de: TW202416564A
According to one aspect, an additive for an iron negative electrode of an alkaline electrochemical cell may include a powder of discrete granules including agglomerated particles, the agglomerated particles including at least one metal sulfide.
Resumen de: CN119894821A
Graphite prepared from a renewable or sustainable source feedstock, a process for its preparation and a battery comprising the graphite. A non-catalytic graphitization process comprises: a) providing a feedstock comprising at least one aromatic compound, the feedstock derived from a sustainable or renewable source; b) coking the feedstock at a temperature in the range of 300 DEG C to 650 DEG C to provide coke; c) calcining the coke at a temperature in the range of 900 DEG C to 1500 DEG C to provide calcined coke; and d) graphitizing the calcined coke at a temperature in the range of 2200 DEG C to 3200 DEG C.
Resumen de: AU2023325416A1
A lift system for a wind turbine includes an elevator car disposed inside the wind turbine. The elevator car includes a platform to support a worker, a sidewall extending from the platform, and a top portion coupled with the sidewall. The platform, sidewall, and top portion define a cabin. The lift system includes a traction hoist coupled with the top portion. The traction hoist is configured to move the elevator car within the wind turbine. The lift system includes a control panel operably coupled with the traction hoist. The control panel is configured to receive an input to control the traction hoist. The lift system includes a portable battery configured to power the traction hoist. The portable battery is configured to be removably coupled with the elevator car to electrically couple the portable battery with the traction hoist.
Resumen de: EP4576310A1
The present invention relates to an electrode assembly and a secondary battery including the same. The electrode assembly according to an embodiment of the present invention may be provided by winding a first electrode, a first separator, a second electrode, and a second separator, and the electrode assembly includes a protective member disposed in a space between each of the first separator and the second separator and an edge portion, at which the winding of the first electrode starts, and having a shape corresponding to that of at least a portion of the space.
Resumen de: WO2024088759A1
The invention relates to a coolant collection device (1). The coolant collection device (1) has at least two rigid coolant collection tubes (2) and a T-shaped connecting piece (3) with three tubular connecting elements (3a, 3b, 3c). The T-shaped connecting piece (3) is arranged between the rigid coolant collection tubes (2) and a first (3a) of the three tubular connecting elements (3a, 3b, 3c) is designed to be received in a coolant channel (4) of a battery cooling profile (5), wherein the second (3b) and third (3c) of the three tubular connecting elements (3a, 3b, 3c) are each connected to the coolant collection tubes (2). A battery coolant distribution system (10) for a vehicle (16) is also described. A vehicle (16) is also described. A method for producing a coolant collection device (1) is also described. In addition, a method for producing a battery coolant distribution system (10) is described.
Resumen de: WO2024038240A1
The present invention relates to a method for manufacturing a battery cell, the method comprising the following steps: - providing (E30) a main-electrodes assembly (10) comprising at least two first electrode plates (3), at least two second electrode plates (5) and at least one electrode separator (1) sandwiched in a transverse direction (Z); - at least partially cutting (E50) the main-electrodes assembly (10) in the transverse direction (Z) of the main-electrodes assembly (10) in order to form at least two auxiliary-electrodes assemblies (13), each auxiliary-electrodes assembly (13) comprising at least a first auxiliary-electrodes plate (3a, 3b, 3c, 3d), at least a second auxiliary-electrodes plate (5a, 5b, 5c, 5d), and at least an auxiliary-electrodes separator (1). The invention also relates to a manufacturing system for manufacturing such a battery cell.
Resumen de: EP4576288A1
A first aspect of the present disclosure is related to a battery cell test system, comprising:- a housing configured to host a wound-up electrode stack;- a first lid configured to be arranged in a variable height in the housing;- a first external battery contact arranged through the first lid and configured to contact a first electrode of the electrode stack through the first lid.
Resumen de: WO2024040048A1
The present disclosure relates to the production of active materials that may be used in a battery anode and compositions thereof. The active materials may be composed of natural graphite or graphitizable primary particles that are agglomerated into secondary particles with an agglomeration solution. The resulting secondary particles may be carbonized and graphitized prior to their use as battery active materials.
Resumen de: EP4574218A1
A fire extinguishing structure of battery module (1) is disclosed and includes a housing (10), a battery pack (20), an airflow guiding channel (30, 31, 32), a fan (40, 40a) and an intumescent insulation layer (50, 51, 52, 53, 54). The accommodation space (13) is in communication between the inlet (11) and the outlet (12). The battery pack (20) is accommodated in the accommodation space. The airflow guiding channel is configured to guide an airflow (F) along an airflow direction from the inlet (11) to the outlet (12). The fan (40, 40a) is configured to generate the airflow (F) flowing to dissipate heat generated by the battery pack (20). The intumescent insulation layer (50, 51, 52, 53, 54) is arranged on a side wall of the airflow guiding channel (30, 31, 32), and configured to react and expand under a reaction temperature to seal the airflow guiding channel. An included angle (α) formed between a normal direction (N) of the intumescent insulation layer (50, 51, 52, 53, 54) and the airflow direction is not less than 90 degrees.
Resumen de: EP4576261A1
The present invention relates to a positive electrode material including: a first positive electrode active material being in the form of a secondary particle in which a plurality of grains are aggregated, comprising an orientational structure in which the long axis of the grain is arranged toward the surface from the center of the secondary particle in at least a portion of the secondary particle, and having a cobalt concentration at the grain boundary, which is the interface between the grains, higher than a cobalt concentration inside the grains; and a second positive electrode active material comprising a center part having at least one form among a single particle composed of one nodule and a quasi-single particle composed of a composite of at most 30 nodules, and a coating layer formed on the center part and containing cobalt.
Resumen de: EP4576308A1
The present disclosure relates to an electrolyte for a lithium-sulfur secondary battery and a lithium-sulfur secondary battery comprising the same, and provides a lithium-sulfur secondary battery with improved life characteristics by adjusting a solvent, a nonsolvent and a lithium salt included in the electrolyte to specific conditions.
Resumen de: EP4576415A2
Disclosed are a cylindrical battery cell cleaning device, a cylindrical battery cell produced using the same, and a battery pack and a vehicle including the cylindrical battery cell. A cylindrical battery cell cleaning device according to an embodiment of the present disclosure includes a rotating member coupled to a cell carrier on which a cylindrical battery cell is seated and rotating by being coupled to a rotating shaft; a fixing member disposed on the outside of the rotating member and in contact with the cell carrier so that the cell carrier rotates in conjunction with the rotation of the rotating member when the rotating member rotates; and a spraying member that sprays cleaning water toward the cylindrical battery cell seated on the cell carrier.
Resumen de: EP4576315A1
A battery pack includes: a casing including a lower case (101); a battery cell stack (102) including multiple pouch battery cells, including two opposite electrode tab sides and side surfaces adjacent to electrode tab sides, and disposed in the lower case (101);; a battery management system (108); a flexible circuit board assembly (200) including a flexible printed circuit board (201); a side plate (104) fixed to the side surface; a connecting assembly (300) including a flexible flat cable (301) and an adapter (303), in which the flexible flat cable (301) is disposed on the side surface and connected and fixed to the side plate (104) through the adapter (303), and the battery management system (108) and the flexible printed circuit board (201) are communicatively connected through the connecting assembly (300).
Resumen de: EP4576243A1
The present invention relates to an electrode assembly, a unit cell and a lithium secondary battery having high energy density and excellent lifetime characteristics, the electrode assembly, the unit cell and the lithium secondary battery according to the present invention include a positive electrode containing a positive electrode active material in a single particle type having a D<sub>50</sub> of 5.5 um to 8 um; a negative electrode containing a first negative electrode active material having a Si-C composite so that an irreversible capacity per unit area of the negative electrode is smaller than an irreversible capacity per unit area of the positive electrode.
Resumen de: EP4576359A1
Die Erfindung betrifft ein Energiespeichermodul (10) mit einer Vielzahl elektrochemischer Zellen (110) zum Speichern von elektrischer Energie sowie mit mindestens eine Kontaktierungsvorrichtung (200) zum elektrischen Kontaktieren der Vielzahl elektrochemischer Zellen (110). Jede der Vielzahl elektrochemischer Zellen (110) weist eine erste flächig ausgebildete Anschlussfahne (111) zum Kontaktieren einer ersten Elektrode der jeweiligen elektrochemischen Zelle (110) und eine zweite flächig ausgebildete Anschlussfahne (112) zum Kontaktieren einer zweiten Elektrode der jeweiligen elektrochemischen Zelle (110) auf. Die Vielzahl von elektrochemischen Zellen (110) ist stapelförmig angeordnet und bildet derart ein Zellenpaket (100) aus, dass die ersten und zweiten flächig ausgebildeten Anschlussfahnen (111, 112) sich zumindest im Wesentlichen senkrecht von zwei gegenüberliegenden Seiten des Zellenpakets (100) aus erstrecken. Erfindungsgemäß ist insbesondere vorgesehen, dass die mindestens eine Kontaktierungsvorrichtung (200) im Wesentlichen kammförmig ausgebildet ist und eine Vielzahl von Zinken (211, 221) aufweist, welche derart ausgebildet und angeordnet sind, dass zwischen zwei benachbarten Zinken (211, 221) eine erste oder zweite Anschlussfahne (111,112) aufnehmbar oder aufgenommen ist.
Resumen de: EP4574724A1
An apparatus for manufacturing an electrode assembly formed in a stack structure of an electrode plate and a separator includes a separator supply unit configured to supply the separator, a folding unit that moves with respect to a stack table to fold the separator on the stack table, a guide unit provided on a movement path of the separator from the separator supply unit to the folding unit to guide movement of the separator, a compensator unit that is movable to compensate for a change in length of the movement path of the separator, and a controller unit configured to control movement of the compensator unit based on structural parameters for a structure of the apparatus and motion parameters for a motion of the folding unit to compensate for the change in length of the movement path of the separator.
Resumen de: EP4576406A1
The present disclosure provides a current collection plate and a battery cell. The current collection plate includes: a main body (10); a conductive part (20) connected to the main body (10) of the current collection plate and including a first side (20a) and a second side (20b) opposite to the first side (20a); and an insulating layer (30) covering at least part of the first side (20a) and at least part of the second side (20b).
Resumen de: EP4574758A1
The present invention provides a carbon nanotube dispersion, a method of preparing the same, an electrode slurry composition and secondary battery including the carbon nanotube dispersion, wherein the carbon nanotube dispersion includes carbon nanotubes, the first dispersant surrounding the surface of the carbon nanotubes, the second dispersant for introducing charges to the surface of the carbon nanotubes, and a storage stabilizer having electrostatic repulsion against the charges.
Resumen de: EP4576309A1
The present application provides a sodium secondary battery, a battery module, a battery pack, and an electric device. The sodium secondary battery comprises a positive electrode sheet, a negative electrode sheet, a first electrolyte located on the positive electrode sheet side, and a second electrolyte located on the negative electrode sheet side; the first electrolyte and the second electrolyte comprise different organic solvents, the first electrolyte comprises an ester solvent, a sulfone solvent or a fluoroether solvent, and the second electrolyte comprises an ether solvent or an amide solvent. By matching different organic solvents with the positive/negative electrode sheets respectively, gas production-caused swelling of the battery is reduced, the electrochemical stability window width of the battery is optimized, and the cycling stability of the battery is improved, thereby improving the comprehensive performance of the battery.
Resumen de: EP4576355A1
Embodiments of the present application provide a battery cell, a battery, and an electrical apparatus. The battery cell comprises a housing, an electrode assembly, an electrode terminal, a fixing member, and a sealing member. The housing comprises a first wall, the first wall is provided with an electrode lead-out hole. The electrode assembly is accommodated in the housing. The electrode terminal is electrically connected to the electrode assembly and covers at least a portion of the electrode lead-out hole. The fixing member surrounds the electrode terminal and connects the electrode terminal and the first wall. The sealing member surrounds the electrode terminal, and at least a portion of the sealing member is sandwiched between the electrode terminal and the fixing member.
Resumen de: EP4576275A1
Disclosed herein is a current collector, a secondary battery an electrical device, and a method for preparing the current collector. The current collector includes a substrate. The substrate includes the porous material. The affinity material is disposed in pores of the porous material. The affinity material is configured to promote the deposition of metal ions in an electrolyte solution. The affinity material includes at least one of a carbon-based material, a non-metal oxide, a carbide, a fluoride, a nitride, a sulfide, a phosphide, and an organic material. The above manner is able to effectively reduce the nucleation overpotential of the metal ions on the porous material of the current collector, promote the uniform diffusion and deposition of the metal ions within the pores of the porous material of the current collector, inhibit the generation of a dendrite, and improve the cyclic performance and safety of the battery.
Resumen de: EP4576368A1
A battery pack according to the present disclosure may include: a plurality of battery cells; an outer case configured to store the plurality of battery cells and including a plurality of unit parts disposed to extend in the width direction of the plurality of battery cells; and a reinforcement member configured to interconnect the plurality of unit parts and to be inserted into the unit part such that the surface thereof does not contact the battery cell.
Resumen de: EP4576377A1
Disclosed are a battery pack and a vehicle including the same.A battery pack according to an embodiment of the present disclosure may include: a plurality of battery cells; a pack case configured to store the plurality of battery cells and having a venting portion formed thereon; and a sealing member installed to the pack case to seal the pack case and configured to close the venting portion, wherein the sealing member may break by a pressure in a predetermined range so that flame or gas generated inside the pack case may be discharged through the venting portion.
Resumen de: EP4574549A1
An information processing apparatus 10 includes an acquisition unit 15B that acquires a magnetic field distribution of a battery that is installed in a vehicle, a determination unit 15C that performs authenticity determination on whether the battery is a genuine product based on the magnetic field distribution of the battery, an evaluation unit 15D that evaluates a charging device serving as a delivery source of the battery that is installed in the vehicle among charging devices that charge a battery that is brought by a user and deliver a charged battery to the user in place of the battery, based on a result of the authenticity determination, and an output unit 15E that outputs evaluation of the charging device, where the evaluation is made by the evaluation unit 15D.
Resumen de: EP4576307A1
An electrolyte for a lithium secondary battery including an organic solvent, a lithium salt, and a phosphate-based additive including a compound represented by Formula 1. A lithium secondary battery according to embodiments of the present disclosure may include a cathode, an anode opposite to the cathode, and an electrolyte including the phosphate-based additive represented by Formula 1.
Resumen de: EP4576297A1
A secondary battery having a structure in which a vent having a low coupling force due to fusion is provided in a sealed portion such that the vent is easily broken if a secondary battery made of stainless steel (SUS) or steel with a plating layer formed on the surface thereof is expanded by internal pressure, thereby improving safety. The secondary battery includes an electrode assembly having a positive electrode plate, a negative electrode plate, and a separator between the positive electrode plate and the negative electrode plate and a case configured to receive the electrode assembly. The case includes a metal layer and a sealed portion sealed by fusion on at least three sides. The sealed portion includes at least one vent.
Resumen de: EP4576300A1
A lithium battery including a cathode, an anode current collector, and an electrolyte layer disposed between the cathode and the anode current collector is provided. The electrolyte layer includes a gel polymer electrolyte, wherein the gel polymer electrolyte includes a first polymer, a first lithium salt, a second lithium salt, a first organic solvent, and a second organic solvent, the first polymer includes a repeating unit derived from a first crosslinking monomer including three or more reactive functional groups, and the first lithium salt and the second lithium salt each independently include a borate-based lithium salt.
Resumen de: CN119731287A
The electrical device comprises at least one electrical element in thermal contact with a heat transfer fluid comprising gt, in weight percent of fluid; 95% of at least one ester of a C5 to C9 monocarboxylic acid with a C5 to C9 monoalcohol, the ester having a carbon number of less than 17.
Resumen de: EP4576414A1
In an apparatus for injecting an electrolyte into a secondary battery, an apparatus for injecting an electrolyte according to the present invention may include: a chamber that accommodates the secondary battery therein; an injecting part that stores the electrolyte therein and injects the electrolyte into the secondary battery through a difference in pressure between the inside thereof and the inside of the chamber; and a compressing part that is connected to the injecting part and compresses the inside of the injecting part so as to inject the electrolyte remaining in the injecting part into the secondary battery.
Resumen de: EP4574768A1
The present disclosure relates to a positive electrode active material precursor for a lithium secondary battery, a positive electrode active material for a lithium secondary battery, and a method of producing a positive electrode material, and the positive electrode active material precursor for a lithium secondary battery may satisfy, in XRD peak values, at least one of an I<sub>001</sub>/I<sub>100</sub> ratio of 0.5 to 6, an I<sub>001</sub>/I<sub>101</sub> ratio of 0.6 to 3, an I<sub>001</sub>/I<sub>102</sub> ratio of 2.5 to 8, an I<sub>001</sub>/I<sub>110</sub> ratio of 1.5 to 11, an I<sub>001</sub>/I<sub>111</sub> ratio of 2 to 14, an I<sub>100</sub>/I<sub>001</sub> ratio of 0.1 to 3.1, an I<sub>100</sub>/I<sub>101</sub> ratio of 0.1 to 1.5, an I<sub>100</sub>/I<sub>102</sub> ratio of 1.0 to 7.3, an I<sub>100</sub>/I<sub>110</sub> ratio of 1.5 to 3.2, and an I<sub>100</sub>/I<sub>111</sub> ratio of 2.5 to 5.3.
Resumen de: EP4574220A1
A plate-type fire extinguishing device (100) of the present invention is configured to spray, in case of a fire in a battery, a built-in fire extinguishing agent onto the area where the fire occurred, thereby extinguishing the fire. The plate-type extinguishing device (100) comprises: an exterior means (110) comprising a chamber which is sealed to have an interior space having a predetermined capacity and is formed in the shape of a plate with a predetermined width; a predetermined amount of extinguishing agent (not shown) that fills the interior space of the chamber at a predetermined discharge pressure; and multiple nozzles (120) coupled to the exterior means and communicating with the interior space of the chamber in an upward and/or downward direction; and multiple sealing covers (130) made of a low melting point alloy so as to fill and seal the insides of the multiple nozzles (120), respectively, and, when heated to a predetermined temperature by a battery, melt to allow the extinguishing agent to be sprayed to the battery through the nozzles (120).
Resumen de: EP4575681A1
A battery manufacturing process management system according to an embodiment includes a battery cell dummy configured to obtain data regarding a battery manufacturing process and a controller configured to control at least one process variable related to the battery manufacturing process based on the data regarding the battery manufacturing process, obtained using the battery cell dummy.
Resumen de: EP4576375A1
Disclosed are a battery pack configured to guide venting gas to be discharged in a desired direction when a thermal event occurs, and an energy storage system including the same.A battery pack according to one aspect of the present disclosure includes a cell assembly, a pack frame accommodating the cell assembly therein, and a venting guidance portion coupled to the pack frame and configured to cause an outlet, through which venting gas emitted from the cell assembly is discharged to the outside of the pack frame, to be formed at a coupling portion with the pack frame, which is at least partially weakened as the internal pressure of the pack frame increases due to the venting gas.
Resumen de: EP4576301A1
An electrolyte composition contains an ion conductive inorganic solid electrolyte, a polymer having an ability to preferentially conduct metal ions, and an ionic liquid.
Resumen de: EP4576388A1
The present invention relates to the technical field of lithium ion battery diaphragms. Provided are an ultrathin lithium ion battery diaphragm with high mechanical strength and excellent thermal dimensional stability, and a preparation method thereof.
Resumen de: EP4576270A1
An electrode binder for a lithium-ion battery includes core-shell particles each of which includes a core and a shell layer located outside the core. The core is formed of rubber, and the shell layer is formed of a shell-forming polymer containing at least one type of monomer units selected from the group consisting of methacrylic acid units and (poly)alkylene glycol chain-containing (meth)acrylic ester units. The proportion of the methacrylic acid units in the shell-forming polymer is from 5 to 40 wt% or the proportion of the (poly)alkylene glycol chain-containing (meth)acrylic ester units in the shell-forming polymer is from 10 to 30 wt%.
Resumen de: EP4576269A1
A disclosed negative electrode slurry contains a negative electrode active material, a thickener, an antiseptic component, and a solvent. The thickener includes a carboxymethylcellulose salt. The solvent includes water. The antiseptic component includes a compound represented by the following formula (1), where R1 to R5 each independently represent a hydrogen atom or an alkoxy group, the total number of carbon atoms included in R1 to R5 is 3 or less, at least two of R1 to R5 represent hydrogen atoms, and at least one of R1 to R5 represents an alkoxy group.
Resumen de: EP4576268A1
A disclosed negative electrode slurry for a lithium ion secondary battery contains a negative electrode active material, a thickener, an antiseptic component, and a solvent. The thickener includes a carboxymethylcellulose salt. The solvent includes water. The antiseptic component includes an alkane polyol and a compound represented by the following formula (1), where R1 to R5 each independently represent a hydrogen atom or a hydrocarbon group, the total number of carbon atoms included in R1 to R5 is 4 to 6, and at least three of R1 to R5 represent hydrogen atoms.
Resumen de: EP4576403A1
A disclosed battery includes an electrode group formed by winding a first electrode and a second electrode with a separator interposed therebetween, and a first current collector plate 60 having at least one welded portion 63a welded to the first electrode. The first current collector plate 60 has at least a pair of magnetized portions 63b that are arranged to sandwich the welded portion 63a and are magnetized. A magnetic force of the welded portion 63a is smaller than a magnetic force of the magnetized portions 63b. This makes it possible to suppress an internal short circuit in the battery.
Resumen de: CN119731120A
The present invention relates to a method for producing an agglomerated lignin-thermoset resin material. The method includes the steps of providing lignin, providing at least one thermoset resin, forming an agglomerated lignin-thermoset resin material, and curing the agglomerated lignin-thermoset resin material. The invention also relates to a method for producing a carbon material comprising a heat treatment of the agglomerated lignin-thermoset resin material to obtain the carbon material. The obtained carbon material is suitable for use as an active material in a negative electrode of a secondary battery.
Resumen de: EP4576240A1
This application provides an electrochemical apparatus, a preparation method thereof, and an electronic apparatus. The electrochemical apparatus includes an electrode assembly, where the electrode assembly includes a positive electrode plate. The positive electrode plate features a single-sided groove embedded tab structure. The positive electrode plate includes a positive electrode current collector and a second positive electrode active material layer disposed on a second surface of the positive electrode current collector. The second positive electrode active material layer includes a second positive electrode active material, where the second positive electrode active material includes element M, and the element M includes at least one of manganese, iron, lanthanum, zirconium, or yttrium. The positive electrode plate of this application can enhance energy density of the electrochemical apparatus based on the existing embedded tab structure. At the same time, through the element M, thermal stability of the second positive electrode active material can be improved, thereby alleviating the aging problem of the positive electrode plate caused by the single-sided groove embedded tab structure, and consequently improving the safety performance of the electrochemical apparatus.
Resumen de: EP4576374A1
Provided in the embodiments of the present application are a battery cell, a battery, and an electric apparatus. The battery cell (100) comprises: a casing (10), provided with a closed inner chamber (101); an electrode assembly (102), arranged in the inner chamber (101); and a first pressure relief component (1), arranged on the casing (10). The first pressure relief component (1) is provided with a first weak part (13). The first weak part (13) is a thinned part and is configured to be opened when a first preset condition is met in the casing (10).
Resumen de: CN119768366A
The present invention relates to a method for producing a carbon material, the method comprising the steps of providing lignin, providing at least one thermosetting resin, contacting the lignin with the at least one thermosetting resin to obtain a lignin-thermosetting resin material, curing the lignin-thermosetting resin material, and subjecting the cured lignin-thermosetting resin material to a heat treatment to obtain the carbon material. The obtained carbon material is suitable for use as an active material in a negative electrode of a secondary battery.
Resumen de: EP4576401A1
A single-cell battery, a battery pack, and a vehicle. The single-cell battery comprises a housing, an electrode plate, a tab, a current collector, and a terminal pole. An accommodation space is defined in the housing. The electrode plate is located in the accommodation space, and at least has a first surface and a second surface. The tab is disposed at the electrode plate, and comprises a first section and a second section in connection with each other. The first section extends out of the electrode plate from the first surface, the current collector is disposed in the first section, and the second section extends out of the electrode plate from the second surface. The terminal pole is disposed at the current collector and extends out of the housing.
Resumen de: EP4576365A1
An energy storage system (1000), comprising a battery assembly (201), a bearing frame (100), a power distribution device (400), and a junction device (300). An outer contour of the bearing frame (100) is configured in the shape of a container and defines an accommodation space used to accommodate and fix the battery assembly (201), and a mounting portion (1206) is formed on the bearing frame (100). The power distribution device (400) is adapted to connect to an external load so as to provide electrical energy to the external load. The junction device (300) is adapted to electrically connect the battery assembly (201) and the power distribution device (400). At least one of the power distribution device (400) and the junction device (300) is mounted on the mounting portion (1206) and is at least partially located in the outer contour, such that the energy storage system is easy to transport and has high energy density.
Resumen de: EP4576328A1
A vehicle having a battery pack. The battery pack comprises a single-cell battery and a heat transfer element. The single-cell battery comprises a housing, a cell, and multiple terminal poles. An accommodation space is defined in the housing, and the cell is disposed in the accommodation space. The housing at least has a first surface and a second surface. The terminal poles are disposed at the cell and extend out of the housing from the first surface, and at least one of the terminal poles is sheet-shaped. The heat transfer element can transfer heat of the single-cell battery from the first surface to the second surface.
Resumen de: EP4576334A1
A vehicle, which is provided with a battery self-heating device. The battery self-heating device comprises a power storage device, an inductor, a control unit and a capacitor. The power storage device comprises a first power storage device and a second power storage device, which are arranged in series. One end of the inductor is connected between the first power storage device and the second power storage device. The control unit comprises at least one phase of bridge arm. The other end of the inductor is connected to the midpoint of the at least one phase of bridge arm. Two ends of the at least one phase of bridge arm are respectively connected to a positive electrode and a negative electrode of the power storage device. Two ends of the capacitor are respectively connected to the positive electrode and the negative electrode of the power storage device. The capacitor comprises a first X capacitor and a second X capacitor, which are connected in series. One end of the inductor is connected between the first X capacitor and the second X capacitor.
Resumen de: EP4576234A1
A composite electrode, a manufacturing method thereof, and a lithium-ion battery are provided. The composite electrode includes a current collector; and a composite material layer disposed on at least one side surface of the current collector. The composite material layer comprises n-layer active substance layers and n-1-layer lithium supplement layers that are stacked at intervals, in which n is greater than or equal to 3 and n is an integer. A side of the composite material layer which is adjacent to the current collector is one of the n-layer active substance layers. Porosity of the n-1-layer lithium supplement layers gradually increases along a direction away from the current collector.
Resumen de: EP4576333A1
A method and apparatus for inhibiting vehicle vibration during a self-heating process of a battery, and an automobile. The method comprises: controlling a power battery pack (E) to output a driving current to a first motor (M1) so as to drive the first motor to rotate, and when the first motor rotates, dragging a second motor (M2) to rotate; controlling the power battery pack to output a self-heating current to the second motor so as to perform self-heating of a power battery; acquiring a real-time rotation speed of the first motor; and controlling a fundamental wave frequency of the self-heating current according to the real-time rotation speed, so that the fundamental wave frequency and the real-time rotation speed form staggered peaks.
Resumen de: CN119744463A
The present invention provides an electrode having a ceramic coating comprising a ceramic powder and a binder, the electrode having a surface roughness Ra of 0.4 mu m to 1.6 mu m, preferably 0.6 mu m to 1.4 mu m, further preferably 0.8 mu m to 1.2 mu m. The invention further provides a lithium ion battery which comprises a positive electrode, a negative electrode, electrolyte and a shell, the positive electrode comprises a positive electrode current collector and a positive electrode active material coated on the positive electrode current collector, and the negative electrode comprises a negative electrode current collector and a negative electrode active material coated on the negative electrode current collector; wherein the positive electrode and the negative electrode are opposite to each other, at least one of the positive electrode and the negative electrode is the electrode with the ceramic coating, and the ceramic coating is located on at least one surface, opposite to each other, of the positive electrode and the negative electrode. The ceramic coating can replace a battery diaphragm in the general sense, and can improve the cycle life and thermal stability of the lithium ion battery.
Resumen de: CN119744463A
The present invention provides an electrode having a ceramic coating comprising a ceramic powder and a binder, the electrode having a surface roughness Ra of 0.4 mu m to 1.6 mu m, preferably 0.6 mu m to 1.4 mu m, further preferably 0.8 mu m to 1.2 mu m. The invention further provides a lithium ion battery which comprises a positive electrode, a negative electrode, electrolyte and a shell, the positive electrode comprises a positive electrode current collector and a positive electrode active material coated on the positive electrode current collector, and the negative electrode comprises a negative electrode current collector and a negative electrode active material coated on the negative electrode current collector; wherein the positive electrode and the negative electrode are opposite to each other, at least one of the positive electrode and the negative electrode is the electrode with the ceramic coating, and the ceramic coating is located on at least one surface, opposite to each other, of the positive electrode and the negative electrode. The ceramic coating can replace a battery diaphragm in the general sense, and can improve the cycle life and thermal stability of the lithium ion battery.
Resumen de: EP4576304A1
The present disclosure relates to an electrolyte additive for a lithium metal battery or a lithium-ion battery. Since the electrolyte additive for a lithium metal battery or a lithium-ion battery provides uniform nucleation sites for lithium ions, dendrite (lithium dendrite) formation can be inhibited and, thus, the performance and safety of a lithium metal battery or a lithium-ion battery can be improved.
Resumen de: EP4576257A1
A cathode for a lithium secondary battery according to exemplary embodiments may include a cathode current collector; and a cathode active material layer formed on the cathode current collector and including over-lithiated oxide particles. A D value represented by Equation 1 of the cathode may be greater than 5.
Resumen de: CN119744463A
The present invention provides an electrode having a ceramic coating comprising a ceramic powder and a binder, the electrode having a surface roughness Ra of 0.4 mu m to 1.6 mu m, preferably 0.6 mu m to 1.4 mu m, further preferably 0.8 mu m to 1.2 mu m. The invention further provides a lithium ion battery which comprises a positive electrode, a negative electrode, electrolyte and a shell, the positive electrode comprises a positive electrode current collector and a positive electrode active material coated on the positive electrode current collector, and the negative electrode comprises a negative electrode current collector and a negative electrode active material coated on the negative electrode current collector; wherein the positive electrode and the negative electrode are opposite to each other, at least one of the positive electrode and the negative electrode is the electrode with the ceramic coating, and the ceramic coating is located on at least one surface, opposite to each other, of the positive electrode and the negative electrode. The ceramic coating can replace a battery diaphragm in the general sense, and can improve the cycle life and thermal stability of the lithium ion battery.
Resumen de: CN119744463A
The present invention provides an electrode having a ceramic coating comprising a ceramic powder and a binder, the electrode having a surface roughness Ra of 0.4 mu m to 1.6 mu m, preferably 0.6 mu m to 1.4 mu m, further preferably 0.8 mu m to 1.2 mu m. The invention further provides a lithium ion battery which comprises a positive electrode, a negative electrode, electrolyte and a shell, the positive electrode comprises a positive electrode current collector and a positive electrode active material coated on the positive electrode current collector, and the negative electrode comprises a negative electrode current collector and a negative electrode active material coated on the negative electrode current collector; wherein the positive electrode and the negative electrode are opposite to each other, at least one of the positive electrode and the negative electrode is the electrode with the ceramic coating, and the ceramic coating is located on at least one surface, opposite to each other, of the positive electrode and the negative electrode. The ceramic coating can replace a battery diaphragm in the general sense, and can improve the cycle life and thermal stability of the lithium ion battery.
Resumen de: CN119744463A
The present invention provides an electrode having a ceramic coating comprising a ceramic powder and a binder, the electrode having a surface roughness Ra of 0.4 mu m to 1.6 mu m, preferably 0.6 mu m to 1.4 mu m, further preferably 0.8 mu m to 1.2 mu m. The invention further provides a lithium ion battery which comprises a positive electrode, a negative electrode, electrolyte and a shell, the positive electrode comprises a positive electrode current collector and a positive electrode active material coated on the positive electrode current collector, and the negative electrode comprises a negative electrode current collector and a negative electrode active material coated on the negative electrode current collector; wherein the positive electrode and the negative electrode are opposite to each other, at least one of the positive electrode and the negative electrode is the electrode with the ceramic coating, and the ceramic coating is located on at least one surface, opposite to each other, of the positive electrode and the negative electrode. The ceramic coating can replace a battery diaphragm in the general sense, and can improve the cycle life and thermal stability of the lithium ion battery.
Resumen de: CN119790022A
Exemplary lithium carbonate (Li2CO3) particles may include at least 98 wt% (wt%) of lithium carbonate. Exemplary lithium carbonate (Li2CO3) particles may have a Dv (50) of between 0.08 mu m and 0.43 mu m. Exemplary lithium carbonate (Li2CO3) particles may have a Dn (50) of between 0.015 mu m and 0.5 mu m. Exemplary lithium carbonate (Li2CO3) particles may have a BET surface area of between 10 m2/g and 25 m2/g. An exemplary battery may include a positive electrode, a negative electrode, a separator, and a non-aqueous electrolyte. An exemplary positive electrode may have a positive electrode active material layer including a positive electrode active material and a plurality of lithium carbonate (Li2CO3) particles.
Resumen de: EP4576256A1
A lithium secondary battery according to exemplary embodiments may include a cathode which includes: a cathode current collector, and a cathode active material layer formed on the cathode current collector and including cathode active material particles; and an anode disposed to face the cathode. The cathode active material particles may include activated over-lithiated oxide particles and a coating material formed on at least a portion of the surface of the activated particles and containing a coating element. An upper limit of operation voltage of the lithium secondary battery may be 4.5 V or less relative to the oxidation-reduction potential of lithium.
Resumen de: EP4576490A1
A battery management apparatus, a battery pack, an electric vehicle and a battery management method are provided. The battery management apparatus according to the present disclosure includes a state detection unit configured to obtain a plurality of cell state parameters indicating an electric state of each of the plurality of battery cells; a balancing processing unit configured to perform a balancing process, which is a procedure of selectively discharging or charging each of the plurality of battery cells, to suppress deviation in the electric state between the plurality of battery cells; and a control unit configured to control the balancing processing unit to perform a balancing process for at least one battery cell among the plurality of battery cells, based on the plurality of cell state parameters.
Resumen de: EP4576413A1
The present application provides an end cover assembly, a battery cell, a battery, and an electric device. The end cover assembly comprises an end cover body, a fool-proof structural part, and an electrode terminal; the end cover body comprises a first edge and a second edge which are oppositely arranged in the width direction of the end cover assembly; the fool-proof structural part is located on the side of the end cover body facing the interior of the battery cell; the electrode terminal passes through the end cover body; the electrode terminal comprises a connecting area facing the interior of the battery cell; the connecting area is electrically connected to a tab of the electrode assembly; in the width direction, the distance from the connecting area to the first edge is larger than the distance from the connecting area to the second edge; and the fool-proof structural part is at least partially located on the side of the connecting area close to the first edge. The end cover assembly in embodiments of the present application can improve the production efficiency of battery cells.
Resumen de: US2025191853A1
A composition incorporating activated carbon, an electro-stabilizing agent and/or a wettability enhancing agent. Methods of producing conductive activated carbon including a step of combining activated carbon with an electro-stabilizing agent and/or a wettability enhancing agent to form an activated carbon mixture; and exposing the activated carbon mixture to a sweeping gas at an elevated temperature. The electro-stabilizing agent can be copper. The wettability enhancing agent can be aluminum.
Resumen de: EP4576266A1
The present invention relates to a dry composition comprising at least one active material, at least one binder, optionally at least one conductive agent, characterized in that said at least one binder comprises a fluoropolymer and a polyamide thermoplastic polymer.
Resumen de: EP4576262A1
This application relates to an electrochemical device. The electrochemical device includes a negative electrode. The negative electrode includes a negative current collector and a negative active material layer disposed on the negative current collector. The negative active material layer includes a negative active material. The negative active material includes a carbon-based material, silicon, and sulfur. Based on a total mass of the negative active material layer, a mass percentage of the silicon is a%, and a mass percentage of the sulfur is b%, 0.1 ≤ a/b < 1, and 0.03 ≤ b ≤ 0.55.
Resumen de: EP4576249A1
A negative electrode plate is provided. The negative electrode plate includes a negative electrode current collector and a negative electrode active material layer disposed on the negative electrode current collector. The negative electrode active material layer includes a negative electrode active material. The negative electrode active material includes negative electrode active material particles, the negative electrode active material particles including a first particle having a pore. In a 200 µm×200 µm region of a cross section of the negative electrode active material layer, the negative electrode active material satisfies 0.10≤TD-0.05×(1/X)≤0.40, where X represents a ratio of an average cross-sectional area of the pore in the first particle to an average cross-sectional area of the first particle, and 4.0%≤X≤15%, and TD represents a tap density of the negative electrode active material, in g/cm<3>. The negative electrode plate of this application has excellent kinetic performance, and can effectively improve charge and discharge performance of a secondary battery at low temperatures. A secondary battery including the negative electrode plate is further provided.
Resumen de: EP4576298A1
This application provides an electrochemical device and an electric device. The electrochemical device includes a housing and a wound electrode assembly; where the electrode assembly is accommodated in the housing, the electrode assembly has a winding centerline, the electrode assembly includes a positive electrode plate and a negative electrode plate, and along a winding direction of the positive electrode plate, a positive electrode active material layer of the positive electrode plate has a positive electrode winding starting end and a positive electrode winding ending end. A straight line passing through the positive electrode winding ending end and orthogonal to the winding centerline is defined as a first reference line, a straight line orthogonal to the first reference line and orthogonal to the winding centerline is defined as a second reference line, and a straight line passing through the positive electrode winding starting end and orthogonal to the winding centerline is defined as a third reference line, where a zero or acute angle α exists between the third reference line and the second reference line, satisfying 0°≤α≤30°, which can inhibit the collapse of the electrode plate in an inner winding circle caused by the swelling of the electrode assembly, thereby improving the service life of the electrochemical device.
Resumen de: EP4576267A1
The present invention relates to a dry composition comprising at least one active material, at least one binder, optionally at least one conductive agent, characterized in that said at least one binder comprises, preferably consists of, a polyamide thermoplastic polymer.
Resumen de: EP4574331A1
The invention relates to a process for manufacturing an electrochemical cell comprising in particular:- a step for providing two electrode assemblies (2, 3) comprising each stacks of positive electrodes connected to each other and stacks of negative electrodes connected to each other,- a first step of welding two first connection elements (4, 5) of the electrode assemblies to a first collector (15) of a cover (12),- a step of inserting the electrode assemblies into two respective supporting tools (36, 37) of an assembly tool,- a step of pivoting the supporting tools towards the cover so as to press the electrode assemblies in abutment against each other,- a step of bending the two second connection elements by two second pivoting flaps (55) of the supporting tools, and- a second step of welding the second end portions of the second connection elements to the second collector.
Resumen de: EP4576290A1
The invention relates to a process for manufacturing an electrochemical cell comprising in particular:- a step for providing two electrode assemblies (2, 3) each comprising stacks of positive electrodes connected to each other and stacks of negative electrodes connected to each other,- a first step of welding two first connection elements (4, 5) of the electrode assemblies (2, 3) to a first collector (15) of a cover (12),- a step of pivoting each electrode assembly (2, 3) towards a cover (12) until the electrode assemblies are pressed against each other,- a step of bending two second connecting elements (6, 7) of the electrode assemblies, and- a second step of welding the folded second connection elements (6, 7) to the second manifold (16).
Resumen de: EP4576291A1
The invention relates to a process for manufacturing an electrochemical cell comprising in particular:- a step for providing two electrode assemblies (2, 3),- a step of translating two supporting tools (36, 37) toward the electrode assemblies to insert each electrode assembly into one of the supporting tools,- a step of pivoting two first pivoting flaps (54', 55') of the supporting tools, up to abutment against first tabs (30, 31),- a step of pivoting two second pivoting flaps (54, 55) of the supporting tools, up to abutment against second tabs (32, 33),- a first step of welding the first connection elements (4, 5) to the first collector,- a second step of welding the second connection elements to the second collector.
Resumen de: EP4576376A1
This application discloses a battery cover plate, a battery, a battery pack, and an energy storage system, to monitor a turned-on state of an explosion-proof valve of the battery. The battery cover plate includes a cover plate body, a first electrode assembly, and the explosion-proof valve, and a first through hole is provided on the cover plate body. The first electrode assembly includes a first insulating member and a first conductive sheet, the first insulating member is disposed on a first side of the cover plate body and covers the first through hole, a second through hole and a slot are provided on the first insulating member, a position of the second through hole is opposite to a position of the first through hole, one end of the slot communicates with the first through hole, and the other end extends to a side wall of the first insulating member and communicates with an exterior. The first conductive sheet is disposed on a side that is of the first insulating member and that faces away from the cover plate body. The explosion-proof valve is disposed on a surface on one side of the cover plate body and covers the first through hole, a notch is provided on the explosion-proof valve, the notch defines, on the explosion-proof valve, a flippable part in an open ring shape, and the flippable part is configured to: be flipped along the notch when subjected to force, and be in contact with the first conductive sheet after flipping.
Resumen de: EP4576239A1
A negative electrode plate includes a negative electrode active material, and the negative electrode active material includes first particles with pores and second particles other than the first particles, where within a 200 µm × 200 µm region of a cross-section of the negative electrode active material layer, the first particles satisfy: 0.10 ≤ a/b ≤ 0.85 and 0.89 ≤ 0.98 × C - (a/b)<2> ≤ 1.86, where a µm represents an average maximum Feret diameter of the pores in the first particles; b µm represents an average maximum Feret diameter of the first particles; and C g/cm<3> represents a compacted density of the negative electrode active material, where 1.65 ≤ C ≤ 1.95. The negative electrode plate provided in this application has both a high compacted density and a high porosity.
Resumen de: EP4576313A1
A computer system (600) comprising processing circuitry (602) configured to handle a battery arrangement is provided. The battery arrangement comprises a first battery cell (11a) and a cell monitoring unit (30). The cell monitoring unit (30) is configured to monitor the first battery cell (11a). The processing circuitry (602) is configured to obtain by the cell monitoring unit (30), a first indication indicative of an estimated or measured temperature of the first battery cell (11a). The processing circuitry (602) is configured to, based on the estimated or measured temperature of the first battery cell (11a) in relation to a preferred temperature range of the first battery cell (11a), determine whether or not to transmit a first wake up signal to a battery control module (20). The first wake up signal is arranged to indicate to the battery control module (20) to trigger a thermal management function for the battery arrangement.
Resumen de: EP4576354A1
Disclosed is a battery cell, which includes an electrode assembly having a cell body and an electrode tab extending from the cell body; a cell case having an accommodation portion configured to accommodate the electrode assembly and a circumferential portion extending outward from the accommodation portion; an electrode lead electrically coupled to the electrode tab; and a conductive frame disposed on one surface of the circumferential portion and electrically coupled to the electrode lead through one surface of the circumferential portion.
Resumen de: EP4576400A1
Provided is a battery cell assembly according to example embodiments. The battery cell assembly includes a cell stack including a plurality of pouch type battery cells, and a top plate assembly on the cell stack, in which the top plate assembly includes a top plate, a bus bar frame coupled to the top plate, and a plurality of bus bars on the bus bar frame, and each of the bus bar frames includes a material different from a material of the top plate.
Resumen de: EP4576238A1
Disclosed is an electrode manufacturing apparatus, which includes a slitting roll containing a knife for cutting an electrode; and at least one bracket located downstream in a movement direction of an electrode spaced apart from the slitting roll by a predetermined distance and having a plurality of micro holes provided at a position facing the electrode, the bracket being configured to remove foreign matter generated as a result of cutting the electrode on the slitting roll through the micro holes.
Resumen de: EP4576382A1
A battery module according to the present disclosure may include: a cell assembly including a plurality of battery cells stacked on each other; a module case configured to store the cell assembly in an inner space and having venting holes formed therein; and a cover member including a plurality of fire-resistant layers, which have outlet holes respectively formed therein and are spaced apart from each other, and coupled to an outer surface of the module case such that the venting holes and the outlet holes communicate with each other, wherein the outlet holes of one fire-resistant layer and the outlet holes of the other fire-resistant layer facing the same may be configured so as not to overlap each other.
Resumen de: EP4576241A1
The present application relates to the technical field of batteries, and discloses an electrode component, a battery cell, a battery and an electrical apparatus. The electrode component (30) includes an electrode body including an active material layer (33), an insulation substrate (31) and a conductive layer (32) arranged on the insulation substrate (31), in which, a surface, facing away from the insulation substrate (31), of the conductive layer (32) includes a first area (32a) and a second area (32b) which are arranged adjacent to each other in a first direction (X), and the active material layer (33) covers the first area (32a); and a tab assembly (34) of which one end is connected to the second area (32b); wherein in the first direction (X), the maximum space between the end, connected to the second area (32b), of the tab assembly (34) and the active material layer (33) is D0, the minimum size of a part, not connected to the tab assembly (34), of the second area (32b) is D1, and D0 is smaller than D1; and therefore, the coating area of the active material layer of the electrode component can be increased, thereby improving the accommodating quantity of the active material layer on the electrode component.
Resumen de: EP4576409A1
Disclosed in the present application are an electrical apparatus, a battery, a battery cell (1) and an electrode plate assembly (10). The electrode plate assembly (10) comprises an electrode plate (100) and an insulating adhesive tape (200). The electrode plate (100) comprises an electrode plate body (110) and a tab. The main surface of the electrode plate body (110) has a first side edge (112) and a second side edge (113) that are spaced apart from each other along a predetermined spacing direction (D1). The tab is integrally formed with the electrode plate body (110) and protrudes from the first side edge (112) in the spacing direction (D1). The insulating adhesive tape (200) is to be adhered and fixed to the main surface of the electrode plate body (110) and to cover the first side edge (112). The above method can solve the problem of short circuit caused by burrs generated during a tab forming process piercing the separator (20).
Resumen de: EP4576492A1
Heating a battery pack for a power tool may be required to accelerate a charging time, especially in cold environments. Not all battery packs of a set of battery packs will heat at the same rate because of differences due to physical (e.g., mass) and electrical (e.g., AC resistance) differences. The disclosed approach includes determining an amplitude of an AC heating current based on characteristics of the battery pack attached to a charger so that all the battery packs in the set of battery packs may be heated at roughly the same rate regardless of their individual characteristics. The disclosure describes how this approach may be implemented in a variety of different charging scenarios.
Resumen de: EP4576390A1
Embodiment of the present disclosure relate to a separator and a secondary battery comprising the same. According to an aspect of the present disclosure, a separator comprising: a porous substrate; and an inorganic particle layer which is formed on at least one surface of the porous substrate and comprises a binder and inorganic particles, wherein the separator has a first peak shown in a range of 3800 to 3400 cm<sup>-1</sup> and a second peak shown in a range of 1800 to 1500 cm<sup>-1</sup> in a spectrum by Fourier-transform infrared spectroscopy (FT-IR) measured after performing 600 cycles of charge and discharge, is provided.
Resumen de: EP4576245A1
This application provides a negative electrode plate and a preparation method thereof, a battery cell, a battery, and an electric apparatus. The negative electrode plate includes a current collector and a film layer disposed on the current collector. The film layer includes a first portion and a second portion disposed along a thickness direction of the film layer, where the first portion is disposed on the current collector, and the second portion is disposed on the first portion. The first portion includes a first carbon-based active material, the second portion includes a second carbon-based active material, the second carbon-based active material includes secondary particles, and a powder compacted density of the first carbon-based active material is greater than a powder compacted density of the second carbon-based active material. When the negative electrode plate is used in a battery, the battery can have a high energy density and good cycling performance.
Resumen de: EP4576358A1
A busbar according to an embodiment of the present disclosure includes: a first conductor layer made of a first metal; and a second conductor layer made of a second metal different from the first metal and stacked and fixed to one surface of the first conductor layer, wherein, on one surface of the first conductor layer to which the second conductor layer is fixed, the first conductor layer has an exposed area where the first metal is exposed.
Resumen de: EP4576242A2
An all-solid secondary battery includes a cathode layer, an anode layer, and a solid electrolyte layer between the cathode layer and the anode layer, wherein the cathode layer includes a cathode current collector and a cathode active material layer on a side of the cathode current collector, and the anode layer includes an anode current collector and a first anode active material layer on a side of the anode current collector, wherein the first anode active material layer includes a first anode active material and a second anode active material, each of which is capable of forming an alloy or a compound with lithium, and a fibrous carbon-based material, and a ratio (B/A) of an initial charge capacity (B) of the first anode active material layer to an initial charge capacity (A) of the cathode active material layer is in a range of about 0.01 to about 0.75.
Resumen de: EP4576351A1
The present invention provides a cylindrical battery cell. A contacting wall surface with an expanded inner diameter is provided at an open end of a sidewall of a battery can of the battery cell. The cap covering the open end includes a press-fitted contacting surface portion in contact with the inner circumferential surface of the contacting wall surface portion, and an electrode connecting part connected to an electrode tab of an electrode assembly accommodated in the battery can. The press-fitting depth of the cap into the battery can is regulated by the electrode connecting part 41 of the cap 40 and the electrode tab of the electrode assembly. The contacting surface portion and the contacting wall surface portion are bonded and electrically connected by welding. The present invention provides a battery cell manufacturing, a battery pack including the battery cell, and a vehicle including the same.
Resumen de: EP4574232A1
The present invention provides a corrosion-resistant device for gas-solid separation, includes a feeding inlet, a filter element, a solid outlet, and a gas outlet, wherein the filter element uses corrosion-resistant metal material, and the metal material is nickel, or nickel alloy with a nickel content of 50% or above. The gas-solid separation device of the present invention is suitable to be used in recycling lithium batteries for gas-solid separation.
Resumen de: EP4575019A1
The present invention provides an apparatus for separating and recycling metal elements in cathode materials of lithium batteries, comprising a device for pretreating lithium batteries, configured to obtain a mixture of powders containing positive-electrode materials; a device of acid leaching, configured to obtain leachate; if the to-be-recycled lithium battery contain a lithium iron phosphate battery, the apparatus further comprises a heating furnace for heating the solid products, obtained after acid leaching and solid-liquid filtration, in an oxygen-containing atmosphere; if the to-be-recycled lithium battery contains a ternary lithium battery, the apparatus further comprises a first extraction device for performing extraction on the leachate, wherein diisooctyl phosphate is extraction agent.
Resumen de: EP4575018A1
The present invention provides an apparatus for a chlorination method to recycle metal elements in lithium batteries, comprising: a device for pretreating lithium batteries, configured to remove organic components in the lithium batteries and obtain a mixture of powders containing positive-electrode materials; a chlorination furnace, configured to heat and chlorinate the powders at a heating temperature of no less than 500 °C; a gas outlet of the chlorination furnace is connected to inlet of a first gas-solid filtration device; a gas outlet of the gas-solid filtration device is connected to a first desublimation device, wherein the first desublimation is set to be below 306°C and above 178°C; a gas outlet of the first desublimation device is connected to a second desublimation device; wherein the second desublimation is set to be below 178°C.
Resumen de: EP4576319A1
L'invention concerne un procédé de gestion thermique d'une batterie (BATT), ladite batterie étant configurée pour fournir une tension à un appareil électrique sur une plage de tension dite opérationnelle, ledit procédé étant mis en oeuvre à l'aide d'une unité de gestion thermique (U_TH), ladite unité de gestion thermique (U_TH) étant configurée pour générer une température de consigne (T°cons) à appliquer à la batterie, lors de la sollicitation en puissance (PWR) de la batterie, ladite température de consigne (T°cons) étant générée à partir d'un modèle de gestion thermique (M_TH) recevant en entrée l'état de santé (SoH) de la batterie, ledit modèle de gestion thermique (M_TH) étant configuré pour déterminer la température de consigne pour assurer la réalisation d'un profil de puissance (PU_i) prédéterminé en maintenant la tension fournie par la batterie sur sa plage de tension opérationnelle, tout en minimisant la baisse de l'état de santé (SoH) de la batterie.
Resumen de: EP4576357A1
The disclosure relates to the field of batteries and specifically provides a battery pack including a box body, a cell stack, an adhesive blocking portion, and at least two adhesive structures. The box body has an installation space. The cell stack includes a plurality of pouch cells and is arranged in the installation space. The adhesive structures are arranged in the installation space and directly connected between the cell stack and the box body. The adhesive blocking portion is arranged between the at least two adhesive structures to isolate the at least two adhesive structures. In the battery pack, the adhesive structures may be used to provide more comprehensive support for the cell stack, and mutual interference between different adhesive structures may be prevented.
Resumen de: EP4576345A1
A secondary battery includes a case accommodating an electrode assembly therein, a cap plate sealing an opening of the case, and a vent provided in one or more of the case and the cap plate, wherein the vent includes: a notch induced to rupture according to internal pressure of the case and one or more bending guides inducing roll up deformation of each ruptured region. By rolling up the vent, the area of an outlet may be appropriately secured and maintained after the vent ruptures.
Resumen de: EP4576302A1
There are provided a sulfide-based solid electrolyte with improved ionic conductivity, a method for preparing the sulfide-based solid electrolyte and an all-solid-state battery including the sulfide-based solid electrolyte. The present disclosure relates to a sulfide-based solid electrolyte including Group 13 elements, wherein the sulfide-based solid electrolyte has an argyrodite-type crystal structure, wherein the sulfide-based solid electrolyte is represented by chemical formula Li<sub>7-x-3y</sub>M<sub>y</sub>PS<sub>6-x</sub>Ha<sub>x</sub>, wherein in the chemical formula, the M is at least one selected from the Group 13 elements, wherein the Ha is at least one selected from halogen elements, and the Ha includes Br, and wherein 0 < x< 2.5 and 0 < y < 0.2 are satisfied.
Resumen de: EP4576371A1
Disclosed are a battery module, a battery pack and a vehicle including the same. A battery module according to an embodiment of the present disclosure includes a battery cell stack in which a plurality of battery cells are stacked; a case in which the battery cell stack is accommodated and a first outlet through which gas is discharged is formed; and an exhaust path member that is coupled to the case to provide an exhaust path for the gas, is provided to allow the gas to be discharged but to prevent the outflow of flame, and has a second outlet formed therein, wherein the exhaust path member is configured such that the gas moves in a straight line direction.
Resumen de: EP4576274A1
The present specification discloses a current collector. The current collector comprises: a current collector body; and a polymer layer formed on the current collector body, wherein the polymer layer may comprise a conductive polymer and a conductive material. The current collector can exhibit excellent electrical properties, including low resistance, in a normal state and can ensure stability through an increase in resistance, and the like, in an abnormal state. The present specification also discloses a use of the current collector.
Resumen de: EP4576258A1
The present invention pertains to a positive electrode and a lithium secondary battery including same, the positive electrode including a lithium-excess manganese-based oxide in which the molar ratio (Li/Me) of lithium to all metals excluding lithium exceeds 1.1, the content of manganese among all the metals excluding lithium is at least 50 mol%, and expression (1) below is satisfied. Expression (1): 0.05 < I<sub>TM/</sub>I<sub>Li</sub> <0.13. In expression (1), I<sub>TM</sub> and I<sub>Li</sub> are, respectively, the sum of the areas of peaks appearing in the 1000-2500 ppm region and the sum of the areas of peaks appearing in the 300-900 ppm region when peak deconvolution is performed on the 1D NMR center band spectrum extracted from the 2D <sup>7</sup>Li Magic Angle Turning Phase Adjusted Spinning Sideband (MATPASS) NMR spectrum of the lithium-excess manganese-based oxide.
Resumen de: EP4576329A1
A power tool, a charging device, a battery pack, and a heat dissipation structure. The power tool (10) includes a housing (110), a printed circuit board assembly, and a heat absorber (130). The printed circuit board assembly is disposed in the housing (110). The heat absorber (130) is in thermal contact with at least part of the printed circuit board assembly and configured to absorb heat generated by the printed circuit board assembly. The heat absorber (130) includes a hydrogel (133).
Resumen de: EP4576260A1
A lithium nickel composite oxide cathode material, wherein under observation of a cross section thereof through scanning electron microscopy, the cross section of the lithium nickel composite oxide cathode material is divided into four equal parts according to the radial length, a porosity of each part of the cross section as measured is in a range from 3% to 8%, and a total porosity of the cross section is in a range from 3% to 8%. A preparation method thereof includes mixing a hydroxide of nickel, cobalt, and manganese with a sulfate containing M and multi-period, low-temperature pre-sintering to obtain a pre-sintered precursor; mixing a lithium source with the pre-sintered precursor and high-temperature sintering to obtain a first sintered matrix; washing the first sintered matrix with deionized water, drying, then mixing with a coating agent and sintering to obtain the lithium nickel composite oxide cathode material. Abundant, uniform-sized pores are distributed evenly in the lithium nickel composite oxide cathode material, which is beneficial for the infiltration of electrolyte, ensuring full contact between the cathode material and the electrolyte, shortening the lithium ion transport path, improving discharge capacity of the cathode material, reducing the internal resistance of the lithium battery, and enhancing rate performance of the lithium battery.
Resumen de: EP4576332A1
A cooling plate (100), a method for producing a cooling plate, and a battery pack. The cooling plate (100) is configured to be fitted on a surface of a battery cell perpendicular to a thickness direction of the battery cell. The cooling plate (100) includes a flow tube (10) and a thermally conductive plate (20). The thermally conductive plate (20) is directly molded on a surface of the flow tube (10) by infusion, enabling the thermally conductive plate (20) to wrap the flow tube (10). The flow tube (10) is defined with a flow cavity (101) configured for a heat exchange medium to pass through. The thermally conductive plate (20) is configured to be fitted on the battery cell, enabling the heat exchange medium to receive heat transferred from the battery cell via the thermally conductive plate (20) and the flow tube (10).
Resumen de: EP4576235A1
The invention relates to a method for manufacturing a cathode (K) for a battery cell, in which a substrate film (1) is coated on one or both sides with an active material layer (3) which is formed from a mixture of active material particles (5) and binder (7), in particular PVDF, wherein the coating of the substrate film (1) is carried out by cold gas spraying with a Laval nozzle (9), in which the active material particles (5) are applied in powder form to the substrate film (1) at high speed in a main flow direction with the aid of a process gas stream (P). According to the invention, the active material particles (5) in powder form are injected via a feed tube (23) in a convergent section (11) of the Laval nozzle (9) into the process gas stream (P) guided through the Laval nozzle (9). For uniform mixing of the active material particles (5) with the binder (7), a divergent section (15) of the Laval nozzle (9) forms a mixing chamber in which the binder (7) is injected in liquid state into the process gas stream (P).
Resumen de: EP4574760A1
The present invention provides a carbon nanotube dispersion including carbon nanotubes; a first dispersant including a nonionic polymer having a weight average molecular weight of 4,000 g/mol to 30,000 g/mol; and a second dispersant including an anionic polymer having a sulfonic acid (salt) group, wherein a weight ratio of the first dispersant to the second dispersant is 5:1 to 1:5; a method of preparing the carbon nanotube dispersion; and an electrode slurry composition and secondary battery including the carbon nanotube dispersion.
Resumen de: EP4574219A1
A fire extinguishing system for an electric vehicle includes a charger configured to supply electricity to the electric vehicle and charge a battery mounted on the electric vehicle; a charger control unit configured to receive status information of the electric vehicle or the charger from the electric vehicle or the charger and determine whether the electric vehicle is on fire; and a fire extinguishing device configured to receive a fire extinguishing signal from the charger control unit and extinguish a fire occurring in the electric vehicle.
Resumen de: EP4576295A1
A battery cell of the present disclosure includes an electrode assembly in which an electrode including a flag and a separator are wound, a can accommodating the electrode assembly, a cap plate sealing the can, and a current collector disposed between the cap plate and the electrode assembly and in contact with the flag, the can, and the cap plate, respectively.
Resumen de: EP4576247A1
An anode active material for a lithium secondary battery according to the present disclosure includes a porous carbon-based particle including pores. The anode active material for a lithium secondary battery includes a composite coating which is formed on a surface of the porous carbon-based particle, and includes a silicon element and at least one additional element from the group consisting of group 13 elements and group 15 elements. A weight ratio of the additional element to a weight of the silicon element included in the composite coating is 0.01% to 4%. The electrical characteristics and lifespan characteristics of the lithium secondary battery may be improved by including the additional element in a predetermined range of contents.
Resumen de: EP4576394A1
Provided are a separator having significantly excellent withstand voltage characteristics and a lithium secondary battery including the same. According to an aspect of the present disclosure, a separator including: a porous substrate; and an inorganic particle layer including a binder and inorganic particles formed on at least one surface of the porous substrate, wherein the separator has a ratio of a breakdown voltage (kV) of the separator to an overall average thickness (µm) of the separator of 0.15 kV/µm or more, has a peak shown in a range of 1070 cm<-1> to 1082 cm<-1> in a spectrum by Fourier transform infrared spectroscopy (FT-IR), has heat shrinkage rates in the machine direction and in the transverse direction of 5% or less as measured after being allowed to stand at 150°C for 60 minutes, and has ΔGurley permeability of 100 sec/100 ml or less is provided.
Resumen de: EP4576344A1
A sealing member, a cap of a battery and a battery are provided by the present disclosure. The sealing member is configured to insulate a cap from a housing of a battery and seal a gap between the cap and the housing. The sealing member comprises a body. The body comprises a first sub-body located between the housing and the cap. The melting point of at least part of the first sub-body is higher than the temperature in the space enclosed by the housing when the battery is in the state of maximum discharge.
Resumen de: EP4576386A2
Embodiments of the present disclosure relate to a separator in which each pore diameter (D10, D50, D90) satisfies all of 180 nm ≤ D10 ≤ 350 nm, 380 nm ≤ D50 ≤ 650 nm, and 670 nm ≤ D90 ≤ 1000 nm. The separator according to an example embodiment has improved heat resistance by satisfying the predetermined pore diameter ranges, and a battery comprising the separator may have improved performance.
Resumen de: EP4576378A1
The present disclosure discloses a battery unit structure in which a venting area expands due to rupture caused by increased internal pressure even if an existing venting hole is clogged, thereby discharging gas and preventing ejection of materials and flames.A battery unit structure according to an aspect of the present disclosure may include: a battery cell; a battery housing having an accommodation space configured to accommodate the battery cell therein and including a venting portion configured to discharge gas generated from the battery cell on at least one side thereof; and a battery cover configured to cover the battery cell, wherein the venting portion may include: a discharge portion including a venting hole configured to discharge the gas and a rupture portion configured to rupture if internal pressure of the accommodation space reaches a predetermined pressure or more; and a mesh portion positioned to face the accommodation space with the discharge portion therebetween.
Resumen de: EP4576265A1
Provided in the present application are a polymer, an electrode sheet, and a related battery cell, a battery and an electric apparatus. The polymer comprises an ester polymer, and is applied to a battery cell. The polymer comprises the ester polymer, wherein the ester polymer is made into a sheet-shaped structure, which is subjected to a dynamic frequency scanning test at the temperature of (Tm+20)°C to obtain an elastic modulus G'-loss modulus G" curve, the slope of the elastic modulus G'-loss modulus G" curve being K, 1 < K < ∞, and Tm ° C representing the melting temperature of the ester polymer. The present application can improve the cycle performance and storage performance of a battery cell.
Resumen de: EP4576412A1
The present disclosure provides a battery cell, a battery, and an electric device, relating to the technology field of batteries. The battery cell includes a housing, an electrode assembly, a first insulating member, and a support frame. The housing is provided with a first wall, and the electrode assembly is accommodated within the housing. The electrode assembly includes a main portion. Along a thickness direction of the first wall, the first insulating member is provided on a side of the first wall facing the electrode assembly. Along the thickness direction of the first wall, the support frame is arranged between the main portion and the first insulating member, and the support frame is thermally fused to the first insulating member. The battery cell with the structure is capable of fixing the support frame to the first insulating member so as to fasten the support frame within the housing. This can reduce the phenomenon of the support frame shifting or displacing during use, thereby reducing the risk of the support frame damaging the electrode assembly due to shifting or displacement, improving the stability and reliability of the battery cell in use, and thus benefiting the improvement of the safety and service life of the battery cell.
Resumen de: EP4574365A1
An electrode plate (10) notching apparatus and an electrode plate (10) notching method using the same are disclosed. An electrode plate (10) notching apparatus includes a first mold (100) including a punch hole (131), a second mold (200) configured to vertically move above the first mold (100) and including a punch (230), a first body (300) coupled to the first mold (100) and spaced apart from the punch hole (131), a second body (400) coupled to the second mold (200) and facing the first body (300), a scrap pusher (500) movably arranged on the second body (400) and configured to discharge a scrap from the punch hole (131), and a trigger (600) arranged on the first body (300) and configured to move the scrap pusher (500) in conjunction with vertical movement of the second body (400).
Resumen de: EP4576237A1
A cathode for a lithium secondary battery and a lithium secondary battery including the same are provided. The cathode includes a cathode active material layer including a cathode active material and a conductive material, and having a Raman R1 value represented by A1<sub>D</sub>/A1<sub>G</sub> and measured on a surface of the cathode active material layer in a range from 1.5 and 4.
Resumen de: EP4576299A1
The present disclosure relates to a composite separator including an adhesive layer and a secondary battery including the same. In the composite separator, the adhesive layer contains a particulate organic binder having a glass transition temperature of 60 to 80°C, and when the adhesive layers are brought into contact with each other, pressurized at a temperature of 50°C and a pressure of 1.7 MPa for 2 hours, and then peeled at a speed of 300 mm/min and an angle of 180°, blocking does not occur between the adhesive layers, and an adhesive strength to a positive electrode is about 0.0049 N/mm or more (5 gf/cm or more). The composite separator according to the present disclosure may have excellent adhesive strength to an electrode and may prevent a blocking phenomenon that occurs during winding.
Resumen de: EP4576294A1
An embodiment of the present disclosure may provide a battery cell including an electrode assembly in which a first electrode including a first uncoated part, a second electrode including a second uncoated part, and a separator disposed between the first electrode and the second electrode are wound in a roll shape, and a cylindrical case including an opening with one side open, and configured to accommodate the electrode assembly inside through the opening, where the first uncoated part and the second uncoated part are disposed in a direction of the opening.
Resumen de: EP4576252A1
A lithium secondary battery includes a cathode including a cathode active material, the cathode active material including a lithium metal oxide that has a form of a secondary particle in which a plurality of primary particles are aggregated and is doped with a doping element, and an anode facing the cathode and including an anode active material, the anode active material including a composite active material of a silicon-containing material and a first carbon-based material, and a second carbon-based active material. An aspect ratio of the primary particles is in a range from 1.4 to 7.0, and a content of the composite active material based on a total weight of the anode active material is in a range from 1 wt% to 50 wt%.
Resumen de: EP4576338A1
The disclosure relates to the technical field of batteries and specifically provides a battery pack and an electric vehicle. The battery pack includes a box body (1) having a lower casing bottom plate (13), a cell stack (2) formed by stacking a plurality of pouch cells (23), a thermally conductive structural adhesive (25) arranged between the cell stack (2)and the lower casing bottom plate (13), side plates (24) arranged at both ends of the cell stack (2) in a stacking direction and adhered to main body surfaces of the pouch cells (23) at both ends, and fixture fitting portions arranged on surfaces of the side plates (24) opposite to the pouch cells (23). In the solution, a pouch cell to pack (CTP) battery pack is constructed based on the pouch cells, the cell stack formed by stacking the pouch cells can be well protected, and assembly can be easily performed.
Resumen de: EP4574769A1
A method of preparing a positive electrode active material, a positive electrode and a rechargeable lithium battery are provided. The method of preparing the positive electrode active material includes mixing nickel-manganese-based composite hydroxide and a lithium raw material and subjecting them to primary heat treatment at about 200 °C to about 350 °C and secondary heat treatment at about 800 °C to about 1000 °C.
Resumen de: EP4576324A1
A fan rotation speed control method for a battery energy station (100) is applicable to the battery energy station (100) for storing and charging plural batteries (112). A first and a second fan rotation speed evaluation rules (142, 144), which are different, are provided, wherein the first and the second fan rotation speed evaluation rules (142, 144) each define a corresponding fan rotation speed at at least one temperature. A temperature is detected using a temperature sensor (120). The battery energy station (100) controls a rotation speed of at least one fan (130) according to the temperature and the first fan rotation speed evaluation rule (142). The battery energy station (100) determines whether a preset condition is met. When the preset condition is met, the battery energy station (100) controls the rotation speed of the fan (130) according to the temperature and the second fan rotation speed evaluation rule (144).
Resumen de: EP4576395A1
The present application relates to the field of batteries. Provided are a battery cell, a battery, and an electric device. The battery cell comprises a housing, an electrode assembly, and an electrode terminal, wherein the housing has a wall portion, which is provided with a lead-out hole; the electrode assembly is accommodated in the housing; the electrode terminal comprises a first terminal portion and a second terminal portion, which are made of different materials and are compounded with each other; the first terminal portion passes through the lead-out hole, and the second terminal portion is electrically connected to the electrode assembly; the first terminal portion comprises a first limiting portion, and in the thickness direction of the wall portion, the first limiting portion is configured to limit the first terminal portion from being separated from the lead-out hole in a direction away from the electrode assembly; and when the first terminal portion is subjected to an outward pulling force, the first limiting portion can limit the electrode terminal from being separated from the lead-out hole. The compound interface between the first terminal portion and the second terminal portion is not easily affected by an external force, and the first terminal portion and the second terminal portion are not easily separated, such that the battery cell has a longer service life.
Resumen de: EP4574251A1
Disclosed are a spliced ceramic sheet (100) and a ceramic sheet liner thereof. The spliced ceramic sheet (100) includes two mating side surfaces (1) opposite to each other. One mating side surface (1) is provided with a mating rib (11) and another mating side surface (1) is provided with a mating groove (12), and the mating groove (12) runs through both ends of the mating side surface (1) in a length direction. The mating rib (11) of the spliced ceramic sheet (100) is configured to be installed in the mating groove (12) of an adjacent spliced ceramic sheet (100), a positioning structure is formed between the mating rib (11) and the mating groove (12), and the positioning structure is configured to position the mating rib (11) in the mating groove (12).
Resumen de: EP4576321A1
The present disclosure relates to an overheating diagnosis method, an overheating diagnosis apparatus, and a battery system providing the same. The overheating diagnosis apparatus includes: a measuring unit configured to measure a temperature of an object; a storage unit configured to store a temperature value measured by the measuring unit; and a control unit configured to extract, at each diagnosis point at which overheating of the object is diagnosed, a plurality of previous diagnosis points corresponding to a predetermined number of samples based on a diagnosis point, calculate a moving average value which is an average of a plurality of temperature values corresponding to each of the plurality of previous diagnosis points, and calculate an standard deviation average value which is an average of a plurality of standard deviations corresponding to each of the plurality of previous diagnosis points, wherein when an error value calculated by multiplying the standard deviation average value by a predetermined multiple is greater than or equal to a predetermined error reference value, the control unit is further configured to: calculate an overheating reference value by adding the error value to the moving average value, and diagnose an occurrence of an overheating event for the object by comparing the temperature value measured at each diagnosis point with the overheating reference value calculated at each diagnosis point.
Resumen de: EP4576236A1
Systems and methods are provided for a magnesium-ion battery (1200). The magnesium-ion battery (1200) includes an anode (1206), a cathode (1202), and an electrolyte in fluid contact with the anode (1206) and cathode (1202). The cathode includes CuV<sub>2</sub>O<sub>6</sub> and the electrolyte includes magnesium ions (1208).
Resumen de: EP4576316A1
A battery pack includes: a casing, the casing includes a lower housing (101); a battery cell stack (102), the battery cell stack (102) includes multiple pouch battery cells, and the battery cell stack (102) is configured in the lower housing (101); a thermal conductive structural adhesive, the battery cell stack (102) and the bottom plate of the lower housing (101) are directly bonded and fixed through the thermal conductive structural adhesive; a foaming adhesive (105), the foaming adhesive (105) is filled and connected between the tab side of the battery cell stack (102) and the lower housing (101); a flexible printed circuit board assembly (200), the flexible printed circuit board assembly (200) includes: a flexible printed circuit board (201) and an insulating connecting sheet, the flexible printed circuit board (201) is fixedly connected to the battery cell stack (102) through the insulating connecting sheet.
Resumen de: EP4576340A1
Provided is a battery array. A battery array having a structure in which a plurality of battery cell units are stacked in a vertical direction includes a first heat sink having a plate shape, a first battery cell unit seated on a top surface of the first heat sink, a first column coupled to the top surface of the first heat sink and extending in the vertical direction, and a second heat sink having a plate shape, located on the first column, and including a bottom surface coupled to the first column.
Resumen de: EP4574492A2
Vehicle assembly comprising a battery pack (6) and a fixing system (7) for fixing the battery pack (6) in a housing (2) of a vehicle (1),the battery pack (6) comprising a base portion (6') and at least one wall (6a, 6b) defined by a portion of the battery pack (6) extending from the base portion (6'),the fixing system (7) comprising first and/or second blocking means (8, 9) configured to make the battery pack (6) integral in the housing (2).
Resumen de: EP4576363A1
Die Erfindung betrifft eine Prozessanordnung zur Fertigung eines Batteriemoduls mit einem Modulgehäuse (1), in dem ein Zellstapel, insbesondere aus Pouchzellen, angeordnet ist, der in einer Stapelrichtung zwischen Modulgehäusewänden (5, 7) mit einer mechanischen Vorspannung (Fv) beaufschlagt ist, mit einer Pressstation, in der der Zellstapel in einem Pressprozess mittels eines Werkstückträgers (21) unter mechanische Vorspannung (Fv) setzbar ist, und mit einer Einziehstation, in der ein Zuganker (43) den Zellstapel unter Aufrechterhaltung der mechanischen Vorspannung (Fv) in einem Einziehprozess aus dem Werkstückträger (21) in das Modulgehäuse (1) einzieht. Erfindungsgemäß sind zur Aufrechterhaltung und/oder gleichmäßigen Verteilung der mechanischen Vorspannung (Fv) des Zellstapels während des Einziehprozesses Zugplatten (27) als Montagehilfe bereitgestellt.
Resumen de: EP4576251A1
Provided are anode material, preparation method therefor, and lithium-ion battery, which relate to the technical field of lithium-ion batteries. The anode material comprises a porous carbon substrate and silicon, the silicon being dispersed in the pores and/or surface of the porous carbon substrate. The preparation method for the anode material comprises: mixing and treating a porous carbon powder and a binder to obtain a porous carbon substrate; and compounding silicon nanoparticles on the porous carbon substrate to obtain the anode material. Adjusting and selecting process parameters allows for reducing the porosity between porous carbon, achieving silicon filling the pores of porous carbon, further forming a high-density anode material, greatly increasing compaction density and volume specific capacity, and improving the related electrochemical performance of the anode material in a lithium-ion battery.
Resumen de: EP4574705A1
The present disclosure relates to a battery tray and a battery transfer system that may safely transfer produced batteries. Specifically, in the present disclosure, by using magnetism to reduce the impact amount applied to the battery tray, it is possible to reduce the impact applied to the battery inserted into the battery tray. Therefore, according to an embodiment of the present disclosure, the battery may be transferred safely.
Resumen de: EP4576323A1
A battery module includes: a housing (11), a cell (12), and a first detection unit (13). The housing defines a receiving space (101), a pressure relief port (102) communicated with the receiving space, and a first air inlet (103) communicated with the receiving space. A pressure relief mechanism (11a) is arranged in the pressure relief port, an air intaking mechanism (11b) is arranged in the first air inlet. The cell is received in the receiving space. The first detection unit is mounted on the housing and configured to detect a predetermined object. The first detection unit is electrically connected to the pressure relief mechanism. When the cell has thermal runaway, the pressure relief mechanism exposes the pressure relief port. When a pressure in the receiving space is less than or equal to a pressure threshold, the air intaking mechanism exposes the first air inlet.
Resumen de: EP4576404A1
A battery pack according to one example of the present invention comprises first and second cell modules each including a plurality of battery cells having a first electrode terminal and a second electrode terminal, a case in which the plurality of battery cells is accommodated, a first connection tab connected to the first electrode terminal and exposed to a first end side of the case, and a second connection tab connected to the second electrode terminal and extending outside a second end of the case, which is opposite to the first end; and a circuit board part electrically connecting the first cell module and the second cell module in a state where the first cell module and the second cell module are sequentially arranged, wherein the first cell module and the second cell module may be disposed so that the second connection tab of the first cell module is positioned on the first connection tab of the second cell module, and the circuit board part may be located on the second connection tab of the first cell module, and may be electrically connected to the first connection tab of the second cell module via the second connection tab of the first cell module.
Resumen de: EP4576416A1
A cleaning device for cleaning a battery cell according to an embodiment of the present disclosure includes a cleaning disk configured to mount a plurality of battery cells at predetermined intervals and to be rotatable around the central rotation center, an inner cleaning nozzle provided in a direction toward the rotation center of the cleaning disk with respect to the cleaning disk, and an outer cleaning nozzle provided in a direction opposite to the inner cleaning nozzle with respect to the cleaning disk.
Resumen de: EP4576246A2
An electrolyte solution includes an organic solvent, and the organic solvent includes ethyl propionate and propyl propionate. Based on a mass of the electrolyte solution, a mass percentage of the ethyl propionate is m%, and a mass percentage of the propyl propionate is n%, a difference n-m between n and m being 5 to 54. The negative electrode active material includes graphite, a ratio n/Lc of n to a crystal size value Lc of the graphite being 1 to 2.14. The amount difference between the ethyl propionate and the propyl propionate in the electrolyte solution is set to satisfy specific requirements, and the ratio n/Lc of the mass percentage n% of the propyl propionate to the crystal size value Lc of the graphite is 1 to 2.14, reducing the high-temperature internal resistance of the secondary battery, and improving the high-voltage cycling performance.
Resumen de: EP4576317A1
A battery pack includes: a casing, which includes a lower housing (101); a battery cell stack (102), which includes two opposite tab sides and side surfaces adjacent to the tab sides, the battery cell stack (102) is disposed in the lower housing (101); a foaming adhesive (105), which is filled and connected between the tab side of the battery cell stack (102) and the lower housing (101); side plates (104); a flexible circuit board assembly (200), which includes: a flexible printed circuit board (201) and an insulating connecting sheet, the flexible printed circuit board (201) is fixedly connected to the battery cell stack (102) through the insulating connecting sheet; a battery management system (108); a connecting assembly (300), which is communicatively connected between the battery management system (108) and the flexible printed circuit board (201), and the connecting assembly (300) is fixedly connected to the side plates (104).
Resumen de: EP4576396A1
Disclosed is a battery pack, including a casing (1), one or more battery cell stacks (3, 4), and an electrode fixing component (100, 200, 300, 400, 500, 600). The battery cell stack (3, 4) is formed by stacking a plurality of pouch battery cells (7) along the thickness direction of the pouch battery cells (7). The electrode fixing component (100, 200, 300, 400, 500, 600) includes bus bars and a bus bar bracket (8) supporting the bus bars. The bus bar bracket (8) is cooperatively connected with a fixing structure on the casing (1), and the bus bars are cooperatively connected with an electrode of the battery cell stack (3, 4).
Resumen de: EP4576339A1
The disclosure relates to the field of batteries, and specifically provides a battery pack (100, 200, 300, 400, 500, 600) and an electric vehicle. The battery pack (100, 200, 300, 400, 500, 600) has a casing (1) including a lower case base plate (13) and a beam structure (14, 15), a cell stack formed by stacking multiple pouch cells in the casing (1), an electrode tabs (231) extending from an end of the pouch battery cell (23) toward the beam structure (14, 15) along a length direction of the pouch battery cells (23), a thermally conductive structural adhesive (25)disposed between the battery cell stack (2) and the lower case base plate (13), and a foaming adhesive (29) filling a space between the electrode tabs (231) and the beam structure (14, 15).
Resumen de: EP4576271A1
The present invention provides a coated cathode material and a preparation method therefor, a cathode plate and a secondary battery. The coated cathode material includes an inner core and a coating layer coated on at least part of an outer surface of the inner core, wherein the inner core contains a lithium nickel oxide, the coating layer contains a lithium-containing amorphous polymer, and LiPO<sub>2</sub>F<sub>2</sub> and metal fluoride are distributed in the lithium-containing amorphous polymer. The metal fluoride can reduce interface side reactions and prevent HF from corroding the cathode material, the lithium-containing amorphous polymer and the metal fluoride with good stability distributed therein are conducive to avoiding direct contact between the inner core and the organic electrolytic solution, and alleviating the electrode/electrolyte interface side reactions and impedance increase during cycling. The lithium-containing amorphous polymer has a good lithium ion transport capability, LiPO<sub>2</sub>F<sub>2</sub> can form a low-impedance electrode/electrolyte interface film with high ionic conductivity and electrochemical stability, and a synergistic effect of the two improves kinetic performance of the cathode material.
Resumen de: EP4576393A1
The present disclosure provides a current collection plate and a battery cell. the battery cell includes the current collection plate, and the current collection plate includes a welding side and a back side arranged oppositely. The welding side is configured to be welded to a battery core (3), the back side is provided with a welding track (2), and the welding track (2) presents a smooth wavy curve.
Resumen de: EP4576399A1
A battery module and a battery module collection mechanism (1) are provided. The battery module collection mechanism (1) includes: a bracket (3), and a collection group (100) including a serial assembly (110), where the serial assembly (110) includes a first serial group (11), a second serial group (12), and a first connection member (21) all disposed on the bracket (3), the first serial group (11) and the second serial group (12) each includes a first serial row (101) and a second serial row (102) arranged oppositely, and the first serial group (11) and the second serial group (12) each is connected in series with a cell group, and two first serial rows (101) or two second serial rows (102) of the first serial group (11) and the second serial group (12) are connected to each other by the first connection member (21).
Resumen de: EP4574740A2
A removable battery assembly (200) comprising a battery body (210) and a battery locking mechanism (220), wherein the battery body (210) defines a longitudinal battery insertion and removal axis; the battery body (210) comprises lateral battery faces (202A, 202B); each lateral battery face (202A, 202B) comprises a longitudinal guide structure; the longitudinal guide structures are configured as a stepped guide channel comprising a one-sided channel portion that transitions to a two sided channel portion, at a channel shoulder; the one and two-sided channel portions extend along the battery insertion and removal axis; and the locking mechanism (220) comprises a pair of spring-loaded locking pins (240A, 240B), each disposed in one of the two-sided channel portions.
Resumen de: EP4576273A2
A non-aqueous electrolyte secondary cell comprising a negative electrode (12) having a negative electrode collector (40), a negative electrode active material layer (42) provided on the negative electrode collector (40), and a non-aqueous electrolyte. The non-aqueous electrolyte includes fluoroethylene carbonate. The negative electrode active material layer (42) contains graphite particles A and graphite particles B as negative electrode active materials. The graphite particles A have an internal void rate of 5% or less. The graphite particles B have an internal void rate of 8 to 20%. When the negative electrode active material layer 42 is halved in the thickness direction, a region 42b on the half closer to the outer surface contains more graphite particles A than a region 42a on the half closer to the negative electrode collector.
Resumen de: EP4576384A1
A battery pack according to the present disclosure may include: a case having a base plate and configured to provide an inner space; a battery module located inside the case; and a venting cover coupled to the case, covering at least one surface of the battery module, and configured such that at least a portion thereof is movable in an outward direction of the battery module.
Resumen de: EP4576373A1
Example embodiments of the present technology provide a battery pack. The battery pack includes a housing with a base plate and side walls coupled to the base plate, a plurality of battery cell assemblies on an upper surface of the base plate, and a plurality of exhaust devices coupled to the base plate.
Resumen de: EP4576379A1
Disclosed is a battery module with an improved structure so as to ensure safety against thermal events or the like. The battery module includes a cell assembly having a plurality of battery cells stacked one another; a module case configured to accommodate the cell assembly in an inner space and having a venting hole formed therein; and an inner cover member configured to cover a side surface at an inner side of the module case where the venting hole is formed, the inner cover member having an inner rupture portion formed in a part corresponding to the venting hole so that venting gas emitted from the cell assembly is discharged to the venting hole through the inner rupture portion
Resumen de: EP4576248A1
An electrode for a secondary battery comprises: a current collector; a lower active material layer formed on at least one side of the current collector; and an upper active material layer formed on the lower active material layer. The lower active material layer comprises a first lithium iron phosphate active material, a lithium nickel oxide active material, and a needle-type conductive material. The upper active material layer comprises a second lithium iron phosphate active material and sphere-type conductive material. A ratio of a content of a sum of the first lithium iron phosphate material and the second lithium iron phosphate active material to a content of the lithium nickel oxide active material is in a weight ratio range of from 55 to 70:30 to 45. A total average loading amount of the upper and lower active material layers is in a range of from 300 mg/25cm<sup>2</sup> to 900 mg/25cm<sup>2</sup>.
Resumen de: EP4576407A1
Disclosed is a battery cell, which includes an electrode assembly; a housing configured to accommodate the electrode assembly through an open portion provided at one side and having a closed portion formed at a side opposite to the open portion; a current collector disposed between the electrode assembly and the closed portion and electrically coupled to the electrode assembly; a terminal electrically coupled to the electrode assembly through the closed portion; and a CID interposed between the terminal and the current collector and coupled to the current collector, the CID being coupled to the current collector with a coupling force greater than the coupling force with the terminal.
Resumen de: EP4574326A1
Le présent exposé concerne un pion (8) de soudage par friction-malaxage, le pion (8) présentant :- au moins un filet (81) ;- au moins une rainure (82) transversale au filet ; et- au moins un méplat (83) entamant le filet.
Resumen de: EP4576342A1
Disclosed is a battery cell, which comprises a can including a bottom member and a sidewall member, and a cap covering an opening of the can, and an electrode assembly accommodated inside the can. A current collection plate is connected to an electrode tab provided at a second end located at the open end of the can among first and second ends located at both axial sides of the electrode assembly. The current collection plate includes an electrode tab connection portion that is in contact with the electrode tab and electrically connected to the electrode tab; a can connection portion that is provided outside the electrode tab connection portion in a radial direction and is in contact with the can and electrically connected to the can; and a conductive connection portion that electrically connects the can connection portion and the electrode tab connection portion. A periphery of the one end of the sidewall member and an outer periphery of the cap in the radial direction are seam-welded along a peripheral direction, and at least a part of an insulating member is interposed between the current collection plate and the electrode assembly in the axial direction.
Resumen de: EP4575539A1
There are provided a battery management system, a battery pack, an electric vehicle and a battery management method. The battery management system includes a sensing unit to detect a terminal voltage and a charge/discharge current of a battery having a characteristic that a voltage variation section changes depending on a current rate, a memory unit to store a first Kalman filter using an equivalent circuit model and a state of charge (SOC)-open circuit voltage curve of the battery and a second Kalman filter using a constant current charge/discharge map of the battery, and a control unit to determine a first estimated SOC by inputting a voltage value of the terminal voltage, a current value of the charge/discharge current and an estimated SOC in a previous cycle to the first Kalman filter, determine a second estimated SOC by inputting the current value and the estimated SOC in the previous cycle to the second Kalman filter.
Resumen de: EP4576347A1
A battery cell according to an embodiment of the present disclosure includes an electrode assembly including a first electrode, a second electrode and a separator interposed between the first electrode and the second electrode, and a battery housing accommodating the electrode assembly through an open portion at a side, wherein at least part of an inside surface of the battery housing is coated by a heat resistant coating.
Resumen de: EP4576296A1
The disclosure provides a battery module (10) and a battery pack (100). The battery module (10) includes a plurality of cells (3), two end plates (1), and at least one hold-down strip (2); the plurality of cells (3) are arranged sequentially in a first direction to form a cell group (4); the two end plates (1) abut against two ends of the cell group (4), respectively; and the hold-down strip (2) abuts against the cell group (4), the hold-down strip (2) includes a hold-down strip body (21) and a connecting component (22), the hold-down strip body (21) extends in the first direction, the connecting component (22) is connected to an end of the hold-down strip body (21) in the first direction, and the connecting component (22) movably abuts against a side of one of the two end plates (1) away from the cell group (4).
Resumen de: EP4574754A1
A lithium manganese iron phosphate positive electrode material and a method for preparing the same are disclosed, which belong to materials of lithium-ion battery. The method includes: mix raw materials and solvent to obtain a first mixture, the raw materials includes a phosphorus-containing compound, a manganese-containing compound, an iron-containing compound, a lithium-containing compound, and a carbon-containing compound; subject the first mixture to a first pretreatment and a first sintering process to form a first sintered material; mix the first sintered material, an additive containing phosphorus, and solvent to obtain a second mixture; subject the second mixture to a second pretreatment and a second sintering process to form a second sintered material, wherein the phosphorus in the additive distributes on particle surface of the second sintered material to form a phosphorus-rich shell layer; subject the second sintered material to post-processing to obtain the lithium manganese iron phosphate positive electrode material. The present disclosure can reduce the powder resistivity of the positive electrode material. Thereby the voltage plateau decay rate is slowed down during the cycling process, and the cycle life of the lithium manganese iron phosphate positive electrode material is improved.
Resumen de: EP4576253A1
The present invention relates to a lithium secondary battery including an electrode assembly comprising a positive electrode, a negative electrode, and a separator placed between the positive electrode and the negative electrode, an electrolyte, and a battery case accommodating the electrode assembly and the electrolyte, wherein the negative electrode includes a negative electrode active material layer containing graphite and a Si/C composite, the positive electrode includes a positive electrode active material layer containing a lithium transition metal oxide represented by Formula 1 as a positive electrode active material: Formula 1 Li1+x1NiyCoz1Mnw1M<1>v1O2wherein M<1> is at least one doping element selected from the group consisting of Al, W, Cu, Fe, V, Cr, Ti, Zr, Zn, In, Ta, Y, In, La, Sr, Ga, Sc, Gd, Sm, Ca, Ce, Nb, Mg, B, and Mo, where 0≤x1≤0.2, 0.50≤y1<1, 0
Resumen de: EP4576276A2
A current collector for a bipolar battery has a conductive region. An insulating region is formed around the conductive region to shield the conductive region.
Resumen de: EP4576303A1
A secondary battery includes a positive electrode, a negative electrode, a separator, and an electrolyte. The electrolyte includes a compound A represented by the following formula:R<sub>1</sub> to R<sub>6</sub> are each independently selected from a fluorine atom, a cyano group, a sulfo group, an aldehyde group, a substituted or unsubstituted C<sub>1</sub>-C<sub>6</sub> alkoxy group, a substituted or unsubstituted C<sub>1</sub>-C<sub>6</sub> alkyl group, a substituted or unsubstituted C<sub>2</sub>-C<sub>6</sub> alkenyl group, a substituted or unsubstituted C<sub>2</sub>-C<sub>6</sub> alkynyl group, a substituted or unsubstituted C<sub>6</sub>-C<sub>12</sub> aryl group, and a substituted or unsubstituted C<sub>6</sub>-C<sub>12</sub> aryloxy group. During substitution, substituents of the groups are each independently selected from a fluorine atom, a C<sub>1</sub>-C<sub>3</sub> alkyl group, or a C<sub>2</sub>-C<sub>4</sub> alkenyl group. A mass percentage of the compound A is 20% to 82% based on a mass of the electrolyte. The separator includes a base film and a porous coating provided on at least one surface of the base film, and a contact angle between the electrolyte and the surface of the porous coating of the separator is 0° to 36°.
Resumen de: EP4576385A1
Disclosed is a battery module. A battery module according to an embodiment of the present disclosure may include a case configured to provide an inner space; a battery cell positioned inside the case; and a fire prevention cover provided on one side of the case and including a first sheet that includes a mica material and a second sheet that includes a metal wire material.
Resumen de: EP4576272A1
Disclosed is a positive electrode for all-solid-state battery and an all-solid-state battery comprising same. More specifically, the positive electrode active material layer comprised in the positive electrode of the present invention comprises a positive electrode active material, a sulfide-based solid electrolyte, and a conductive material, wherein the particle diameter of the conductive material is between the particle diameter of the positive electrode active material and the particle diameter of the sulfide-based solid electrolyte, thereby increasing the contact interface between the positive electrode active material and the sulfide-based solid electrolyte while decreasing the porosity of the positive electrode as a whole, so that the conductivity of the positive electrode is maintained and the effect of increasing the energy density of the cell without a decrease in cell performance is achieved.
Resumen de: EP4576366A1
A battery pack according to the present disclosure includes a cell array structure including a plurality of battery cells; a pack case accommodating the cell array structure; and a fixing portion disposed at a location at which the cell array structure and the pack case face each other and configured to fix the cell array structure to the pack case through form-fitting coupling.
Resumen de: EP4576259A1
The present application relates to a cathode material precursor, a single-crystal cathode material and a preparation method thereof, and a lithium ion battery. A general chemical formula of the single-crystal cathode material is LixNiaCobMncNdO2, where 0.98≤x≤1.1, 0.50≤a≤0.98, 0< b≤0.20, 0
Resumen de: EP4576353A1
A battery cell, a battery module including the same, a battery pack including the same and a vehicle including the same are disclosed. The battery cell according to an embodiment of the present disclosure includes an electrode assembly including a first electrode plate having a first polarity, a second electrode plate having a second polarity and a separator interposed between the first electrode plate and the second electrode plate; an electrode lead connected to the electrode assembly; a cell case accommodating the electrode assembly, and on which the electrode lead is supported, the cell case having a sealing portion; and an internal pressure uniformization member coupled to at least part of the sealing portion of the cell case.
Resumen de: EP4576362A1
A battery module according to one embodiment of the present disclosure includes a battery cell stack formed by stacking a plurality of battery cells; a module frame that houses the battery cell stack and includes side surface parts respectively covering both side surfaces of the battery cell stack along the stacking direction of the battery cells; and at least one compression pad that is arranged at least at one place between adjacent battery cells among the battery cells or between the battery cell, located on the outermost side among the battery cells, and the side surface parts among the battery cells, wherein a reserved space ratio per battery cell is 3% or more, based on the stacking direction of the battery cells.
Resumen de: EP4574725A1
The tape forming jig according to the present disclosure may include a forming plate including a plate body, and a forming hole formed through the thickness direction of the plate body and configured such that the diameter thereof becomes narrower from a first surface of the plate body to a second surface opposite to the first surface; and a forming block provided to be able to enter the forming hole with a cross-section corresponding to the shape of the forming hole as viewed from the outside of the second surface of the plate body.
Resumen de: EP4576411A1
A battery pack according to the present disclosure includes a plurality of battery modules arranged along a width direction or a length direction; a pack case accommodating the plurality of battery modules; a plurality of inter-busbars electrically connecting two adjacent battery modules among the plurality of battery modules; and a shielding unit configured to shield the inter-busbar from an internal space of the pack case, wherein the shielding unit is disposed on an outer surface of the inter-busbar, between any one inter-busbar and another inter-busbar and between the internal space and the inter-busbar.
Resumen de: EP4576264A1
Provided are anode material and battery. The anode material includes a carbon material and silicon particles. The anode material has pores. An average shape coefficient of the anode material is F0, and 0.65≤F0<1. The average shape coefficient F0 of the anode material is obtained through the following manners: ten anode material particles are randomly acquired, a cross-sectional area Sn and a circumference Cn of each anode material particle are measured, Fn=4*π*Sn/Cn<2>, where n is selected from natural numbers from 1 to 10, an average value of shape coefficients Fn of the 10 particles is calculated, and the average value is recorded as the average shape coefficient Fo of the anode material. The anode material provided in the present disclosure is stable in structure, and the occurrence of side reactions is effectively reduced, thereby improving the cycling performance of the anode material.
Resumen de: EP4576255A1
The present disclosure relates to anode material and battery. The anode material includes a secondary particle, and the secondary particle includes silicon primary nanoparticles; the silicon primary nanoparticles include at least one silicon grain, an average particle size of the silicon grains is Ds nm, and an average particle size of the silicon primary nanoparticles is Dn nm; and a crystallinity of the silicon primary nanoparticles is A, the A is equal to Dn/Ds, and the A is equal to or greater than 1 and equal to or less than 200. By exploring a relationship between the size of the silicon primary nanoparticles and the size of the silicon grains, the problem of stress concentration generated by the silicon primary nanoparticles in lithium intercalation/deintercalation can be reduced, correspondingly the structural stability of the anode material is improved, and the expansion rate of the anode material is reduced, thereby improving the electrochemical performance and cycle performance of the anode material.
Resumen de: EP4576318A1
A secondary battery diagnosing apparatus according to the present disclosure includes a thickness sensor configured to sense a thickness change of a secondary battery according to a volume change of a negative electrode active material while the secondary battery to which a negative electrode active material containing silicon or silicon oxide is applied is being charged or discharged; and a processor configured to estimate a capacity ratio, which is a ratio of a capacity provided by the silicon or the silicon oxide to a capacity of the secondary battery provided by the negative electrode active material, using the sensing result of the thickness sensor, and diagnose the state of the secondary battery based on the capacity ratio.
Resumen de: EP4574555A1
A battery system may include at least one battery module including a battery cell configuration unit and a slave battery management system (BMS) managing the battery cell configuration unit includes a communication unit of the slave BMS, a capacitor connected between the communication unit and a first ground, a first inductor and a second inductor connected in series between a contact between the first ground and the capacitor and a second ground, and a control unit transmitting an AC signal having a predetermined frequency to the communication unit in an antenna mode in which the slave BMS communicates with an outside. In addition, the second inductor may be configured of a wire so that a first antenna impedance determined by the first inductor matches a second antenna impedance of a master BMS that is a communication target.
Resumen de: EP4576408A1
Disclosed is a current collection plate, a cylindrical battery cell including the same, and a battery pack and a vehicle including the cylindrical battery cell. The current collection plate electrically connects an electrode assembly accommodated in a cylindrical battery cell, and includes a border portion defining a border; a center portion spaced apart from the border portion and coupled to the electrode assembly; and a connection portion configured to connect the border portion and the center portion, the connection portion being formed to have a varying width.
Resumen de: EP4574275A2
The present application relates to the technical field of battery manufacturing, and provides a detection device and pole piece manufacturing equipment. The detection device includes: a laser ranging sensor; and a cooling module, which includes a first protective enclosure and a cooling plate, where the first protective enclosure encloses the outside of the laser ranging sensor; the first protective enclosure is provided with an avoidance portion for avoiding a laser light path of the laser ranging sensor; the first protective enclosure has a first opening; the cooling plate covers the first opening; an air flow channel is defined inside the cooling plate; surfaces of the cooling plate are provided with air inlet holes and first air outlet holes which are communicated with the air flow channel; and the first air outlet holes are disposed in a manner of facing the laser ranging sensor to blow air to the laser ranging sensor to cool the laser ranging sensor. Through the technical solutions of the present application, the compressed air can be blown from the air outlet holes to the laser ranging sensor after passing through the air flow channel, so as to cool the laser ranging sensor and improve the detection accuracy of the laser ranging sensor.
Resumen de: EP4575216A2
An internal combustion engine (1000) includes an engine block (1002) including a cylinder (1004); a piston (1006) positioned within the cylinder (1004); a crankshaft (1008) configured to be driven by the piston (1006); a fuel system (1001) for supplying an air-fuel mixture to the cylinder (1004); a starter motor (1014); and a lithium-ion battery (1020) mounted on the engine, the lithium-ion battery (1020) configured to power the starter motor (1014) to start the engine (1000).
Resumen de: EP4576389A1
This application relates to the technical field of separators, and in particular, to a separator and a preparation method thereof, a coating slurry and a preparation method thereof, an electrode assembly, a battery, and an electrical device. The separator includes a first isolation layer, a coating, and a second isolation layer. The coating is disposed on at least one surface of the first isolation layer. The coating includes a solid electrolyte material. The second isolation layer is disposed on a surface of the coating, the surface being away from the first isolation layer. The solid electrolyte material can react with metallic lithium to absorb lithium dendrites to prevent the lithium dendrites from penetrating the separator. The first isolation layer and the second isolation layer disposed on two sides of the coating respectively can prevent the lithium dendrites from penetrating the separator, and the coating being disposed between the first isolation layer and the second isolation layer can prevent the coating from contacting a positive electrode or negative electrode to cause side reactions.
Resumen de: EP4576372A1
A rechargeable battery includes: an electrode assembly including an electrode; a case to accommodate the electrode assembly; a cap plate to seal an open area of the case; and one or more terminals electrically connected to the electrode, and coupled to the cap plate. The cap plate includes: a vent to expel gas generated from inside a cell outward; and a venting guide wall surrounding the vent, and protruding outward from a surface of the cap plate at a peripheral portion of the vent.
Resumen de: EP4576352A1
A rechargeable battery includes an electrode assembly (100), a case (200) configured to accommodate the electrode assembly (200), a subplate (320, 420) include a first planar portion (320_PL, 420_PL) connected to the electrode assembly (100) and a protruding portion (320_PR, 420_PR) protruding on the first planar portion (320_PL, 420_PL), a cap plate (360, 460) coupled to an open first side (210) of the case (200), and a terminal plate (380, 480) disposed on the cap plate (360, 460) and electrically connected to the subplate (320, 420), wherein the terminal plate (380, 480) comprises a first portion (380_P1, 480_P1) comprising a bottom surface and a second portion (380_P2, 480_P2) including a second planar portion connected to the first portion (380_P1, 480_P1), and the first portion of the terminal plate (380, 480) is in contact with the protruding portion (320_PR, 420_PR) of the subplate (320, 420).
Resumen de: EP4576335A1
Provided are a control method for a battery heating system, a battery heating system, and an electric vehicle. The battery heating system includes a supercapacitor and a pulse control unit. The control method includes: obtaining a temperature value and an SOC value of a power battery; and issuing a heating instruction to the pulse control unit when the temperature value is lower than a predetermined temperature threshold and the SOC value is higher than a predetermined charge threshold, to allow the pulse control unit to control, based on the heating instruction, bi-directional energy flow between the power battery and the supercapacitor by means of a pulse current, to heat the power battery.
Resumen de: EP4574537A1
A battery pack (6, 6', 6") for an electric road vehicle (1) comprising: a casing (10); a first cell (11, 12) with a first thickness (L) along a first direction (X) and accommodated inside said casing (10); a first pushing member (61, 62) movable relative to the casing (10) and operatively connected to the first cell (11, 12); a first element (41, 42) movable relative to said casing (10) along a second direction (Z) transverse to the first direction (X) and operatively connected to the first pushing member (61, 62) so as to be movable along the second direction (Z) following the movement of the first pushing member (61, 62) along the first direction (X).
Resumen de: EP4576370A1
A battery case is provided and includes: a battery tray bracket; a case body; and a slider detachment member. The case body has a case outer frame and a support beam. The case outer frame defines a battery compartment inside the case outer frame. The case outer frame and/or the support beam defines with an anti-detachment slide slot. The support beam is fixedly connected to the case outer frame. The slider detachment member is slidably arranged in the anti-detachment slide slot. An anti-detachment snap portion of the slider detachment member is configured to constrain and fix the battery tray bracket to the case outer frame and the support beam.
Resumen de: EP4576383A1
A battery pack according to an embodiment of the present disclosure may include: a plurality of battery cells; a pack case configured to accommodate the plurality of battery cells and having a venting portion configured to discharge gas generated from the battery cells to the outside; and a protective cover configured to cover at least a portion of the venting portion.
Resumen de: EP4576491A1
A battery charging apparatus according to an embodiment of the present disclosure includes a current output unit configured to output a charging current to a battery during a preset charging time; a voltage measurement unit configured to measure a voltage of the battery; and a control unit configured to calculate a voltage change amount of the battery during the charging time, calculate a delay time according to the difference between the charging time and a criterion time preset to correspond to the voltage change amount, and set a charging condition corresponding to the battery based on the calculated delay time.
Resumen de: EP4576325A1
The present disclosure provides a method for removing one-sided electrode layer from a double-sided electrode, the method comprising: interposing a double-sided electrode between an upper plate and a lower plate, wherein the upper plate has a structure in which an opening part communicating between upper and lower sides is formed, and the lower plate has a structure in which one side is opened and the other side is formed with a hermetically sealed depression part, and placing a plate assembly having a structure in which the upper plate and the lower plate are coupled to each other with the double-sided electrodes being interposed therebetween, in an NMP (N-methyl-2-pyrrolidone) water bath and applying ultrasonic waves.
Resumen de: EP4576957A1
The present invention relates to a battery management system (BMS) including: a circuit board in which a first coupling hole for grounding is defined; a first casing mold that accommodates the circuit board, and includes a bushing part disposed inside a second coupling hole recessed from the outside; and a coupling unit that passes through the first coupling hole and the second coupling hole, and allows the circuit board and the bushing part to be in contact with each other while pressing a top surface of the bushing part, wherein the bushing part includes: a vertical part provided in a direction parallel to the second coupling hole; and a horizontal part extending from an end of the vertical part in a direction perpendicular to a direction in which the vertical part is provided, wherein the coupling unit is electrically connected to a case, in which a plurality of batteries are accommodated, to ground the circuit board.
Resumen de: EP4576337A1
A battery heating apparatus according to an embodiment disclosed herein includes a state-of-charge calculating unit configured to calculate a state of charge (SoC) of a battery, a sensor unit configured to measure a voltage, a current, or a temperature of the battery, a controller configured to determine a charge power of the battery based on the state of charge of the battery and a maximum charge power of a charger to charge the battery, and determine whether to heat the battery based on the measured temperature and the charge power, and a heating unit configured to heat the battery when determining to heat the battery.
Resumen de: EP4576398A1
A battery module includes a cell assembly including a plurality of battery cells respectively including an electrode terminal and a vent; a busbar assembly including a plurality of busbars electrically connected to the electrode terminal and a support plate supporting the plurality of busbars; and a sensing line connected to the battery cell to sense a state of the battery cell, and installed on the support plate, wherein the support plate includes a plate body opposing the vent and including a plurality of inlet ports through which gas discharged from the vent passes, a first passage in which the sensing line is installed, and a partition wall comparting the plurality of inlet ports from the first passage to block gas passing through the plurality of inlet ports from moving to the first passage.
Resumen de: EP4576391A1
The present disclosure provides a separator for an electrochemical device, the separator including: a porous polymer substrate; and a porous coating layer including a first metal-organic framework (MOF) particle modified with polyimide, a second metal-organic framework particle and a polymer binder, and formed on at least one surface of the porous polymer substrate, wherein at least one of the first metal-organic framework particle and the second metal-organic framework particle includes zirconium, and has an amine group introduced thereto.
Resumen de: EP4576346A1
The disclosure provides a battery (1000) and a battery module. The battery (1000) includes a battery housing (100) and a cap assembly (200); the battery housing (100) includes a body (1), and the body (1) includes a side wall (11) extending in a first direction and an end wall (12) connected to an end of the side wall (11); the end wall (12) includes a first surface (121) and a second surface (122) opposite to each other in the first direction, and the first surface (121) faces an explosion-proof sheet (4) of the cap assembly (200); and the end wall (12) is provided with a groove (2) on the second surface (122), and the groove (2) is recessed from the second surface (122) towards the first surface (121).
Resumen de: EP4576397A1
A battery module and a battery module collection mechanism (1) are provided. The battery module collection mechanism (1) includes: a bracket (3); and a collection group (100) including a serial assembly (110) and a collection assembly (120); where the serial assembly (110) includes a first serial group (11) and a second serial group (12) both installed on the bracket (3), the first serial group (11) and the second serial group (12) each include a first serial row (101) and a second serial row (102), and each of the first serial group (11) and the second serial group (12) corresponds to one cell group (51); the collection assembly (120) includes a first collection line (13) and a second collection line (14); and two first serial rows (101) of the first serial group (11) and the second serial group (12) are electrically connected to the first collection line (13), and two second serial rows (102) of the first serial group (11) and the second serial group (12) are electrically connected to the second collection line (14).
Resumen de: EP4576392A1
The present disclosure relates to a separator, a secondary battery comprising the same and a method for manufacturing the same, and the separator has a porous coating layer including two types of binder polymers in different regions of the porous coating layer, wherein the binder polymers dissolve in an electrolyte solution at different temperatures, to form lithium ion paths in the separator, thereby achieving high ionic conductivity and meeting resistance and stability requirements for the secondary battery.
Resumen de: EP4576402A1
A battery cell according to an embodiment of the present disclosure includes an electrode assembly in which a first electrode and a second electrode are wound around a winding axis while a separator is interposed therebetween, thereby defining a core and an outer circumferential surface, the first electrode including a first non-coated portion that is not coated with an active material layer along the winding direction; a battery housing having an opening provided on one side thereof and configured to accommodate the electrode assembly through the opening; and a collector including a support portion disposed on an upper portion of the electrode assembly, a tap coupling portion extending from the support portion and coupled to the first non-coated portion, and a housing coupling portion extending from the support portion to be electrically coupled to the inner surface of the battery housing and configured capable of being elongated in its length.
Resumen de: EP4576369A1
A case used for storing cells includes a housing (10) and an upper cover (20). The housing (10) is provided with an accommodation chamber (11), a maintenance opening (12) is formed at a top of the housing (10), and the maintenance opening (12) is in communication with the accommodation chamber (11). The accommodation chamber (11) is used for accommodating the cells, and the maintenance opening (12) is arranged corresponding to the cells. The upper cover (20) is detachably arranged on the housing (10) and is able to cover the maintenance opening (12).
Resumen de: EP4576381A1
The present disclosure provides a battery pack configured such that, when gas is generated inside a battery module, high-temperature gas is to be discharged to the outside of the battery pack without affecting other adjacent battery modules. A battery pack according to one aspect of the disclosure includes a pack housing, a first battery module, a second battery module, and a pack cover.
Resumen de: EP4576250A1
The present invention provides an all-solid-state lithium-ion secondary battery comprising a positive electrode, a negative electrode, and a solid electrolyte interposed between the positive electrode and the negative electrode, wherein the negative electrode comprises a negative electrode current collector and a negative electrode active material layer, and wherein the negative electrode active material layer comprises a carbon material and Ag, and comprises two or more layers.
Resumen de: EP4576410A1
Disclosed is a battery module, which includes a cell stack including a plurality of battery cells provided with electrode leads; a bus bar frame assembly including a bus bar electrically connected to the electrode lead and a bus bar frame on which the bus bar is seated, and configured to cover one side of the cell stack; and a fire resistant cover assembly including a fire resistant cover configured to cover the bus bar frame assembly and a metal member coupled to at least one of the electrode lead and the bus bar.
Resumen de: EP4575372A1
A manifold includes: a high-temperature channel through which a high-temperature fluid flows; a low-temperature channel through which a low-temperature fluid having a lower temperature than the high-temperature fluid flows; and a manifold body having the high-temperature channel and the low-temperature channel. The high-temperature channel and the low-temperature channel are disposed close to each other. The manifold body has a thermal insulation space between the high-temperature channel and the low-temperature channel in a location where the high-temperature channel and the low-temperature channel are disposed close to each other.
Resumen de: EP4576330A1
An immersed cooled battery module (100) includes a battery tank (110), battery cells (120), and a modular panel (130). The battery tank (110) includes an outer tank (112) and an inner tank (114). The inner tank (114) is arranged in the outer tank (112). The inner tank (114) has an opening (115) connecting to the inner tank (114) and the outer tank (112). The battery cells (120) are arranged in the inner tank (114). The modular panel (130) is installed on one side of the outer tank (112). The modular panel (130) has a liquid inlet (132) and a liquid outlet (134). The liquid inlet (132) is connected to the inner tank (114). The liquid outlet (134) is connected to the outer tank (112). A coolant enters the inner tank (114) from the liquid inlet (132), then overflows to the outer tank (112) through the opening (115), and finally discharges from the liquid outlet (134) to complete the circulation of the coolant.
Resumen de: EP4576306A1
An aluminum battery includes a positive electrode, a negative electrode, a separator, and an electrolyte. The separator is disposed between the positive electrode and the negative electrode. The electrolyte is impregnated into the separator, the positive electrode, and the negative electrode. The electrolyte includes aluminum halide, ionic liquid, and an additive, and the additive includes a pyridine compound. The pyridine compound has an electron withdrawing functional group.
Resumen de: EP4576292A1
An apparatus for winding a sheet for manufacturing a secondary battery according to an embodiment of the present disclosure includes at least two bobbins including a traveling bobbin on which a winding process proceeds and a standby bobbin that is in a standby state during the winding process; and a sensor that is disposed apart from the standby bobbin by a predetermined distance, and identifies the position where the sheet wound onto the traveling bobbin will be automatically attached to the standby bobbin, wherein when the winding process on the traveling bobbin is completed, the sheet that was wound by the traveling bobbin is attached to the outer peripheral surface of the standby bobbin, and subsequently the winding process is performed.
Resumen de: WO2024240672A1
The invention relates to a workpiece support in which a plurality of workpieces (1) can be arranged in multiple arrangements, said workpiece support comprising: - at least two longitudinal supports (19), - spring-loaded separating walls (13) which run between the two longitudinal supports (19) and which can be moved along the longitudinal supports (19), wherein at least one respective receiving region (7) for one or more workpieces (1) is defined between two adjacent separating walls (13), said receiving region being delimited laterally by adjacent longitudinal supports (19), and - a moving mechanism (15), by means of which the separating walls (13) can be moved against the spring force such that the workpieces (1) are held in the receiving regions (7) in a force-fitting manner by the adjacent separating walls (13).
Resumen de: EP4576387A1
Provided are a separator having significantly improved heat resistance and a lithium secondary battery including the same. According to an aspect of the present disclosure, a separator including: a porous substrate; and an inorganic particle layer which is formed on at least one surface of the porous substrate and includes a binder and inorganic particles, wherein the separator has a ratio of a total thickness of the inorganic particle layer to a thickness of the porous substrate of 0.2 to 0.6, has a peak shown in a range of 1070 cm<sup>-1</sup> to 1082 cm<sup>-1</sup> in a spectrum by Fourier transform infrared spectroscopy (FT-IR), and has heat shrinkage rates in the machine direction and in the transverse direction of 5% or less as measured after being allowed to stand at 150°C for 60 minutes is provided.
Resumen de: EP4576331A1
The present disclosure relates to a battery assembly including: a plurality of battery cells; an insertion member (300) positioned between the plurality of battery cells; an inlet (320) formed on one side of the insertion member; and a cover member (200) covering the plurality of battery cells and the insertion member, wherein the insertion member may expanded when a fluid is injected to the inside of the insertion member through the inlet.
Resumen de: EP4576380A1
The present disclosure relates to a busbar holder (40A, 40B) and a battery module (10). The busbar holder (40A, 40B) includes a holder base (41A, 41B) configured to support a plurality of busbars (27) each busbar (27) of the plurality of busbars (27) electrically connecting a pair of adjacent battery cells (12) among a plurality of battery cells (12), and an insulator (60) which is fixed to the holder base (41A, 41B) and includes a plurality of cell vent covering portions (63) configured to cover a plurality of cell vents (20) provided to face a first direction in the plurality of battery cells (12) and configured to be ruptured when gases are discharged from inside to outside of the plurality of battery cells (12) through the plurality of cell vents (20).
Resumen de: EP4576322A1
The present application relates to a battery cell, a battery, and an electric apparatus. The battery cell comprises a housing, an electrode assembly, and a temperature acquisition member. The housing comprises a plurality of walls that define a first chamber, and at least one wall has a second chamber formed therein. The electrode assembly is accommodated in the first chamber. The temperature acquisition member is accommodated in the second chamber. By arranging the temperature acquisition member in the second chamber, the temperature acquired by the temperature acquisition member is more approximate to the actual temperature of the electrode assembly, thereby instantly reflecting the temperature rise of the electrode assembly and reducing the probability of thermal runaway of the battery cell.
Resumen de: EP4576293A1
A cover plate assembly and a battery are provided. The cover plate assembly includes a top cover and a connection assembly including a connection sheet made of aluminum. The top cover is provided on the connection sheet. The top cover includes a core material and an outer layer located outside the core material. The core material is welded to the connection sheet by the outer layer. A material of the core material includes copper and a material of the outer layer includes nickel.
Resumen de: EP4576233A1
According to the present disclosure, there is provided a method for preparing an electrode slurry for a secondary battery, the method including a step a) of feeding raw materials including an electrode active material, a conductive agent, and a thickener into a mixer; and a step b) of feeding a solvent into the mixer and kneading the raw materials, wherein the thickener in the step a) is in a solid state.
Resumen de: EP4576305A1
The present invention relates to a non-aqueous electrolyte for a lithium secondary battery, which includes a first additive including a chromone-based compound, and a lithium secondary battery including the same.
Resumen de: PL447216A1
Przedmiotem zgłoszenia jest sposób otrzymywania kompozytowego materiału anodowego na bazie Sb dla ogniw galwanicznych, w szczególności sodowych, który polega na tym, że rozpuszcza się SbCl3 w glikolu etylenowym w stosunku wagowym od 1:50 do 1:100, mieszając do całkowitego rozpuszczenia SbCl3, po czym nie przerywając mieszania dodaje się dodatek węglowy w ilości od 0,5% do 8,5% wagowych w stosunku do masy SbCl3. Następnie dodaje się cynk w stosunku molowym od 1,4 do 2,3 mola Zn na 1 mol SbCl3 i mieszaninę podgrzewa się do temperatury w zakresie od 150°C do 200°C oraz miesza z prędkością obrotową w zakresie od 100 do 600 obr./min, przy ciśnieniu nie wyższym niż 150 kPa, przez okres od 2 do 12 godzin. Mieszaninę chłodzi się do temperatury pokojowej i odwirowuje się kolejno: najpierw w etanolu, następnie w roztworze HCl, a na końcu w wodzie korzystnie co najmniej dwukrotnie, a każde odwirowanie prowadzi się przez okres od 5 do 20 minut przy prędkości obrotowej od 2000 do 5000 obr./min. Uzyskany kompozytowy materiał anodowy Sb/Sb4O5Cl2/C suszy się w suszarce pod ciśnieniem atmosferycznym przez okres od 2 do 10 godzin w temperaturze od 40°C do 80°C. Udział poszczególnych składników kompozytu wynosi: Sb>50% wagowych, Sb4O5Cl2>15% wagowych, C>1% wagowego.
Resumen de: PL447235A1
Przedmiotem zgłoszenia schematycznie przedstawionym na rysunku jest układ pozyskiwania ciepła i chłodu z wykorzystaniem strat procesowych systemów magazynowania energii elektrycznej. Moduł termiczny przeznaczony dla bateryjnych magazynów energii elektrycznej, których cechą jest niska sprawność procesowa, w tym wykonanych w technologii przepływowej.
Resumen de: NL2038968A
Disclosed is a rotating disc type marine battery rack mounting system and a working method therefor. The system includes a supporting mechanism, a rotating mechanism, a driving mechanism and carrying mechanisms; wherein a hatch is arranged above the compartment; the supporting mechanism is arranged inside the compartment, the rotating mechanism is installed on the supporting mechanism, a plurality of the carrying mechanisms for carrying battery racks are arranged on the rotating mechanism, and a driving end of the driving mechanism is connected to the rotating mechanism; the driving mechanism drives the rotating mechanism and the plurality of the carrying mechanisms to rotate and align with the hatch in turn, and the battery racks enter via the hatch and are installed in the carrying mechanisms successively. According to the automated rotating disc battery rack mounting system, the work efficiency is improved and the labor costs are reduced.
Resumen de: FR3156774A1
L’invention se rapporte à un procédé d’extraction du zinc à partir d’une solution S1 comprenant du zinc et au moins un élément métallique autre que le zinc et le cobalt, lequel procédé est caractérisé en ce qu’il comprend au moins les étapes suivantes :a) réaction entre le zinc et au moins un ligand choisi parmi l’imidazole et ses dérivés par mise en contact de la solution S1 avec le(s) ligand(s), moyennant quoi un précipité à structure imidazolate zéolithique est obtenu ;b) récupération du précipité. Elle se rapporte aussi à un procédé de préparation d’un oxyde du zinc, en mettant en œuvre ledit procédé d’extraction. Applications : traitement et recyclage de matériaux usagés comprenant du zinc, par exemple recyclage d’une pile alcaline usagée en vue de recycler le zinc.
Resumen de: FR3157009A1
L’invention concerne un vase d’expansion (1) pour un système de refroidissement de batterie (3), -comportant un corps de vase (5), -comportant un insert de séchage (6) interchangeable comportant un corps (8) et un dessiccateur (7) disposé en son sein, -comportant un couvercle (9) qui peut être relié au corps de vase (5) et dans lequel l’insert de séchage (6) est logé au moins partiellement, -comportant un dispositif de soupape (11) et/ou une membrane (12), par l’intermédiaire desquels, en cas de surpression régnant dans le vase d’expansion (1), de l’air (2) arrive depuis le vase d’expansion (1) dans l’environnement et, en cas de dépression régnant dans le vase d’expansion (1), de l’air frais (2a) arrive depuis l’environnement dans le vase d’expansion (1). On peut ainsi obtenir une exécution écologique. Figure pour l’abrégé : Fig. 2
Resumen de: FR3157010A1
L’invention concerne un réservoir de compensation (1) pour un système de refroi-dissement de batterie (3), - comportant un boîtier de réservoir (4) constitué de matière plastique, compor-tant une première coque (5) et une seconde coque (6) reliée de manière étanche à celle-ci, - dans lequel un premier logement (7) est réalisé dans la première coque (5) et/ou dans la seconde coque (6), - comportant une cartouche de séchage (8) logée par complémentarité de forme dans le premier logement (7), - comportant une première soupape (9) par l’intermédiaire de laquelle, en cas de surpression régnant dans le réservoir de compensation (1), de l’air (2) provenant du réservoir de compensation (1) arrive dans l’environnement, - comportant une seconde soupape (10) par l’intermédiaire de laquelle, en cas de dépression régnant dans le réservoir de compensation (1), de l’air frais (2a) provenant de l’environnement arrive dans le réservoir de compensation (1). Ainsi, une réalisation peu coûteuse peut être obtenue. Figure pour l’abrégé : (Fig. 2)
Resumen de: FR3157007A1
L’invention concerne une cartouche de charbon actif (12) destinée à un réservoir de compensation (1) pour un système de refroidissement de batterie (3), - comportant un boîtier de cartouche (15) comportant un pot (17) et un couvercle (18), un fond de pot (25) du pot (17) et le couvercle (18) étant réalisés de manière à être perméables à l’air et étant en particulier recouverts de l’intérieur d’un tissu ou d’un non-tissé (19), - du charbon actif (24) étant disposé dans le boîtier de cartouche (15), - comportant un joint d’étanchéité (23) disposé sur le fond de pot (25) pour assurer l’étanchéité par rapport à une paroi intermédiaire (13) d’un boîtier de réservoir (4) du réservoir de compensation (1), - comportant un ressort (14) qui s’appuie sur le couvercle (18). Cela permet d’obtenir une réalisation facile à monter et optimisée en termes d’espace de montage. Figure pour l’abrégé : Fig. 4
Resumen de: FR3157008A1
L’invention concerne un dispositif de séchage (8) d’un réservoir de compensation (1) pour un système de refroidissement de batterie (3), - dans lequel le dispositif de séchage (8) présente un boîtier (15) perméable à l’air, en forme de sac, dans lequel est disposé un agent de séchage, ou - dans lequel le dispositif de séchage (8) présente un corps de séchage (17) indéformable constitué d’un agent de séchage fritté, extrudé ou injecté. Cela permet d’obtenir une réalisation économique et optimisée en termes d’espace de montage. Figure pour l’abrégé : Fig. 3
Resumen de: FR3157012A1
L’invention concerne un vase d’expansion (1) pour un système de refroidissement de batterie (3), - comportant un boîtier de vase (4) en matière plastique, comportant une cuvette de boîtier (5) et au moins un couvercle (6) qui est posé sur la cuvette de boîtier (5) à partir d’une première direction (7) et qui est relié de manière étanche à celle-ci, - comportant un dispositif formant sécheur (8) comportant un boîtier de sécheur (11) en matière plastique, un insert de sécheur (18) disposé dans celui-ci et un couvercle de boîtier de sécheur (19) fermant le boîtier de sécheur (11), - dans lequel le boîtier de vase (4) et le boîtier de sécheur (11) sont réalisés d’une seule pièce et reliés entre eux de manière à communiquer, - dans lequel le couvercle de boîtier de sécheur (19) peut être posé de manière étanche sur le boîtier de sécheur à partir d’une seconde direction (20), - dans lequel la première direction (7) s’étend orthogonalement à la seconde direction (20). Ainsi, une réalisation peu coûteuse et facile à entretenir peut être obtenue. Figure pour l’abrégé : Fig. 3
Resumen de: FR3157002A1
Procédé de recyclage d’accumulateurs électrochimiques métal-ion hors d’usage et/ou en fin de vie, comprenant une étape d’ouverture de l’emballage d’accumulateur et l’extraction simultanée de l’électrolyte liquide et/ou une étape d’extraction du(des) liant(s) organique(s), Appareil et Installation de recyclage associés. L’invention concerne un procédé de recyclage d’un accumulateur métal-ion hors d’usage et/ou en fin de vie, qui met en œuvre deux étapes qui peuvent être réalisées indépendamment et qui consistent en : - une ouverture de l’emballage (souple ou boitier) de l’accumulateur, qu’il soit chargé ou déchargé électriquement, - une extraction hors du faisceau électrochimique, de l’électrolyte par circulation d’un fluide dense, sous pression, et - une extraction du liant, notamment du PVDF, liant les matériaux d’insertion aux collecteurs de courant des électrodes par circulation de CO2 en conditions supercritiques. Figure pour l’abrégé : Fig.6
Resumen de: FR3157001A1
Un électrolyte gélifié pour élément électrochimique au lithium, l’électrolyte comprenant :a) une matrice constituée d’un polymère polyuréthane linéaire, non réticulé chimiquement, comprenant au moins un segment polycarbonate et éventuellement un ou plusieurs segments choisis parmi un polycarbonate, un polyéther, un polyéther fluoré ou perfluoré, un polysiloxane,b) un ou plusieurs solvants organiques et un ou plusieurs sels de lithium incorporés dans la matrice,l’électrolyte gélifié n’incluant pas de particules inorganiques. Un électrolyte gélifié comprenant :a) une matrice constituée d’un polyhydroxyuréthane non réticulé,b) un ou plusieurs solvants organiques et un ou plusieurs sels de lithium incorporés dans la matrice. Figure d’abrégé : Figure 1
Resumen de: NL2038969A
Disclosed is a worm type marine battery rack mounting system and a working method therefor, and belongs to the technical field of marine battery installation. The battery rack mounting system includes one boosting module, at least one carrying module, at least one static locking module and at least one dynamic locking module. The repeatable melting and solidification characteristic of thermoplastic resin is used to fix the bottom of a battery rack. In this way, manual labor for installing fasteners in a narrow space is avoided, and contact surfaces between resin and components are enhanced by means of threads, thereby increasing friction and improving the stability and reliability of fixation. The design of the system is simple and ingenious, and automatic installation of battery racks is realized by combining worm wheels, infrared signals, thermoplastic resin, etc., thus not only improving convenience of operations, but also enhancing stability of the system.
Resumen de: FR3157005A1
La présente invention concerne un procédé de préparation d’une électrode négative pour batterie Li-ion comprenant : a) le mélange d’une solution S1 comprenant au moins un liant L1 avec une solution S2 comprenant du carbonate de lithium ; b) l’ajout d’au moins un matériau actif pour électrode négative dans la solution obtenue à l’issue de l’étape a).
Resumen de: FR3156717A1
L’invention concerne un procédé de gestion thermique d’une batterie (BATT), ladite batterie étant configurée pour fournir une tension à un appareil électrique sur une plage de tension dite opérationnelle, ledit procédé étant mis en œuvre à l’aide d’une unité de gestion thermique (U_TH), ladite unité de gestion thermique (U_TH) étant configurée pour générer une température de consigne (T°cons) à appliquer à la batterie, lors de la sollicitation en puissance (PWR) de la batterie, ladite température de consigne (T°cons) étant générée à partir d’un modèle de gestion thermique (M_TH) recevant en entrée l’état de santé (SoH) de la batterie, ledit modèle de gestion thermique (M_TH) étant configuré pour déterminer la température de consigne pour assurer la réalisation d’un profil de puissance (PU_i) prédéterminé en maintenant la tension fournie par la batterie sur sa plage de tension opérationnelle, tout en minimisant la baisse de l’état de santé (SoH) de la batterie. Figure à publier avec l’abrégé : Figure 1
Resumen de: FR3157000A1
L’invention concerne une composition consistant essentiellement en au moins un premier précurseur inorganique, au moins un deuxième précurseur inorganique, lesdits précurseurs inorganiques étant dispersés dans au moins un polymère organique, et dont - L’au moins un premier précurseur inorganique est sélectionné parmi la famille des alcoxymétalloïdes de formule M-(OR1)n avec n allant de 1 à 4 et R1 sélectionné parmi hydrogène, groupement alkyle, aryle, et/ou alkenyle, et M un élément métalloïde, - L’au moins un deuxième précurseur inorganique est sélectionné parmi des (R2-O)4-m-M-(R3)m avec m allant de 1 à 3, R2 sélectionné parmi hydrogène, groupement alkyle, aryle et/ou alkenyle, R3 sélectionné parmi groupement alkyle, aryle et/ou alkenyle et comprenant une fonction hydrolysable et M un élément métalloïde, et - L’au moins un polymère organique comprend au moins une chaine latérale Figure à publier avec l’abrégé : figure 1
Resumen de: FR3157013A1
L’invention concerne une batterie (10) d’accumulateurs électriques comprenant : - au moins une borne externe (13), - un bac externe (12), - un empilement (11) d’une pluralité d’accumulateurs électriques (14) dans ledit bac externe (12), comportant chacun deux bornes (16) de connexion électrique, chaque borne (16) étant reliée avec au moins une borne (16) d’un autre accumulateur, caractérisée par le fait que la liaison électrique de toutes les bornes (16) situées d’un même côté des accumulateurs est réalisée par un organe rectiligne (20) muni d’organes de serrage conducteurs (22) coopérant avec les bornes (16) desdits accumulateurs (14), qui est mobile entre une position de déconnexion de l’organe avec les languettes (16) et la borne externe (13), une position de connexion électrique avec toutes lesdites bornes (16) et la borne externe (13). Figure pour l'abrégé : Figure 7.
Resumen de: FR3156716A1
L’invention concerne un procédé de récupération de l’énergie électrique d’un système de freinage régénératif d’un véhicule automobile à pile à combustible pour chauffer ladite pile à combustible lors du démarrage dudit véhicule comportant les étapes suivantes une étape de récupération d’une quantité d’énergie électrique totale (E1) issue du système de freinage régénératif ; une étape de détermination d’une quantité d’énergie électrique maximale (E2) pouvant être fournie à ladite batterie ; une étape de transmission de la quantité d’énergie électrique totale vers ladite batterie (E3) lorsque ladite la quantité d’énergie électrique maximale est supérieure à la quantité d’énergie électrique totale ou une étape de transmission de la quantité d’énergie électrique totale vers ladite pile à combustible (E4) engendrant le chauffage de ladite pile à combustible lorsque ladite la quantité d’énergie électrique maximale est inférieure à la quantité d’énergie électrique totale. Figure de l’abrégé : Fig. 1
Resumen de: FR3156999A1
L’invention concerne notamment une composition consistant essentiellement en au moins un premier précurseur inorganique, au moins un deuxième précurseur inorganique, lesdits précurseurs inorganiques étant dispersés dans au moins un polymère organique, et dont L’au moins un premier précurseur inorganique est sélectionné parmi la famille des alcoxymétalloïdes de formule M-(OR1)n avec n allant de 1 à 4 et R1 sélectionné parmi hydrogène, groupement alkyle, aryle, et/ou alkenyle, et M un élément métalloïde, L’au moins un deuxième précurseur inorganique est sélectionné parmi des X-(OR2)m ou X-(R2)m avec m allant de 1 à 2, R2 sélectionné parmi hydrogène, groupement alkyle, aryle et/ou alkenyle et X un élément alcalin ou alcalino-terreux, et L’au moins un polymère organique comprend au moins une chaine latérale. Figure à publier avec l’abrégé : 1
Resumen de: FR3157003A1
L'invention se rapporte à un procédé de purification d'un matériau actif d'électrode de batterie comprenant les étapes suivantes : a) fournir un matériau actif à purifier, le matériau actif à purifier comprenant un oxyde métallique, des impuretés d'aluminium et des impuretés de cuivre, b) dissoudre les impuretés d'aluminium en plongeant le matériau actif à purifier dans une solution de soude à une concentration choisie à une valeur efficace pour obtenir une dissolution des impuretés d’aluminium, et c) dissoudre les impuretés de cuivre en plongeant le matériau actif à purifier dans une solution d'ammoniaque présentant une valeur efficace pour obtenir une dissolution des impuretés de cuivre, moyennant quoi un matériau actif purifié est obtenu. L'invention se rapporte également à un procédé de régénération d'un matériau actif d'électrode de batterie usagée mettant en œuvre ce procédé de purification. Figure pour l’abrégé : Figure 2A .
Resumen de: FR3156918A1
La présente invention a pour objet un procédé de commande d’un système de batterie (1) comportant une pluralité d’éléments de stockage d’énergie (10a, 10b, 10c, 10d) et une unité de commande (11) configurée pour la mise en œuvre d’une fonction d’équilibrage (12) des éléments de stockage (10a, 10b, 10c, 10d), le procédé comportant les étapes successives suivantes de détermination pour chaque élément de stockage (10a) d’une valeur (DEQa) d’un premier paramètre (P1) d’écart de quantité d’électricité entre l’état de charge instantané (SOCt) et un état de charge cible (SOC100), de détermination de la valeur maximale du premier paramètre (P1) parmi la pluralité d’éléments de stockage (10a), de détermination pour chaque élément de stockage (10a) d’une valeur d’un deuxième paramètre d’équilibrage (P2) de quantité d’électricité à équilibrer et de détermination d’une consigne d’équilibrage de chaque élément de stockage (10a) en fonction de la valeur respective du deuxième paramètre (P2). Figure 1.
Resumen de: FR3156892A1
L’invention concerne un véhicule automobile comprenant un habitacle, une machine électrique de traction, un pack batterie, au moins une unité d'électronique de puissance, et un radiateur de refroidissement, un système thermochimique (10) comprenant une première enceinte nommée réservoir (1), contenant du gaz sous phase liquide et une deuxième enceinte nommée réacteur (2) contenant des sels réactifs, les deux enceintes étant configurées pour être mises sélectivement en communication fluide au moins via une électrovanne de commande (3), le réacteur pouvant être réchauffé par apport de calories en provenance du fonctionnement de la machine électrique de traction, et/ou du pack batterie, et/ou de l’unité d'électronique de puissance, et le réacteur est apte à délivrer des calories, suite à une ouverture de l’électrovanne de commande, à destination de l'habitacle du véhicule, et/ou du pack batterie, et/ou du radiateur de refroidissement du véhicule.
Resumen de: FR3157023A1
Système de production de chaleur La présente invention concerne un système (10) de production de chaleur, configuré pour chauffer un dispositif prédéterminé, et comprenant : - ledit dispositif (12) prédéterminé à chauffer selon une température de consigne prédéterminée ; - au moins un convertisseur (14) de puissance bidirectionnel DC/AC dédié à la mise en œuvre d’une fonction électrique distincte de la production de chaleur, et connecté à un réseau électrique via un point de connexion (16), ledit au moins un convertisseur de puissance bidirectionnel DC/AC étant à proximité dudit dispositif prédéterminé à chauffer et partageant avec lui un circuit (C_R) de refroidissement commun; - un module de pilotage (18) dudit au moins un convertisseur de puissance bidirectionnel DC/AC, ledit module de pilotage étant configuré pour asservir la puissance réactive fournie au réseau par ledit au moins un convertisseur de puissance bidirectionnel DC/AC à ladite température de consigne. Figure pour l'abrégé : Figure 1
Resumen de: FR3157004A1
L’invention concerne une valve de noyage (10) pour batterie d’accumulateurs, comportant un corps tubulaire (20) qui est fermée par un opercule (30) adapté à rompre lorsqu’une surpression s’exerce sur sa face tournée du côté extérieur du corps tubulaire. Selon l’invention, cette valve comporte un clapet (23) qui ferme également le corps tubulaire et qui est adapté à s’ouvrir vers l’extérieur du corps tubulaire lorsqu’une surpression s’exerce sur sa face tournée du côté dudit opercule. Figure pour l’abrégé : Fig.2
Resumen de: FR3157024A1
Un aspect de l’invention concerne un système électrique SE de véhicule V agencé pour gérer un état de charge d’une batterie BP comportant des première et deuxième bornes B1, B2, le système SE comportant : un circuit électrique principal CEP ayant une première partie P1, propre à être couplée la première borne B1 via un premier contacteur K1,un circuit capacitif CC installé entre les première P1 et seconde P2 parties,en parallèle du premier contacteur K1 et en aval du circuit capacitif CC, un composant électronique de blocage CEB interdisant une circulation d’un premier courant issu d’une source d’alimentation SA externe vers la batterie BP et autorisant une circulation d’un deuxième courant issu de la batterie BP vers la première partie P1, le composant CEB étant propre à être couplé aux premières borne B1 et partie P1 via un troisième contacteur K3. Figure 1
Nº publicación: FR3157011A1 20/06/2025
Solicitante:
MAHLE INT [DE]
MAHLE International
Resumen de: FR3157011A1
L’invention concerne un vase d’expansion (1) pour un système de refroidissement de batterie (3), - comportant un corps de vase (4) comportant un premier couvercle (5) compor-tant un embout fileté (6) et un second couvercle (11), - comportant une cartouche de séchage (7), qui est vissée sur l’embout fileté (6) du premier couvercle (5), - une soupape de dépression (8) étant disposée dans le premier couvercle (5), par l’intermédiaire de laquelle, lorsqu’une dépression règne dans le vase d’expansion (1), de l’air frais (2a) arrive depuis l’environnement par l’intermédiaire de la cartouche de séchage (7) dans le vase d’expansion (1), - une soupape de surpression (9) étant disposée dans le second couvercle (11), par l’intermédiaire de laquelle, lorsqu’une surpression règne dans le vase d’expansion (1), de l’air (2) arrive depuis le vase d’expansion (1) dans l’environnement. On peut ainsi obtenir une exécution facile à monter et économique du vase d’expansion (1). Figure pour l’abrégé : (Fig 1)
BOPI
Sede Electrónica
