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Circuit de fluide diélectrique pour un dispositif de régulation thermique, notamment de véhicule automobile

Resumen de: FR3158195A1

Circuit de fluide diélectrique pour un dispositif de régulation thermique, notamment de véhicule automobile L’invention concerne un circuit de fluide diélectrique pour un dispositif de régulation thermique, ledit circuit comprenant au moins un conduit (11) de distribution en fluide diélectrique et un nombre prédéfini de buses (13) d’aspersion configurées pour projeter du fluide diélectrique, par au moins un orifice de projection. Au moins deux orifices de projection sont configurés pour arroser au moins une zone commune (Z1, Z2) d’au moins un logement (7) dudit dispositif. Au moins un premier orifice est agencé pour projeter au moins un premier jet (J1) de fluide diélectrique sur la zone commune (Z1, Z2) à une première distance (D1) d’une bordure du logement (7). Au moins un deuxième orifice est agencé pour projeter au moins un deuxième jet (J2) de fluide diélectrique sur la zone commune (Z1, Z2) à une deuxième distance (D2) plus éloignée de la bordure du logement (7). Figure pour l’abrégé : Fig. 3

POSITIVE ELECTRODE ACTIVE MATERIALS, POSITIVE ELECTRODES, AND RECHARGEABLE LITHIUM BATTERIES

Resumen de: US2025226396A1

A positive electrode active material for a rechargeable lithium battery includes a first positive electrode active material including a layered lithium nickel-manganese-based composite oxide having a nickel content of at least 70 mol % based on 100 mol % of a total metal excluding lithium in the first positive electrode active material, and being in a form of secondary particles having an average particle diameter (D50) of about 10 μm to about 25 μm, and a second positive electrode active material including a lithium cobalt-based oxide, being in the form of single particles having an average particle diameter (D50) about 1 μm to about 9 μm, wherein a difference between the average particle diameter (D50) of the secondary particles of the first positive electrode active material and the average particle diameter (D50) of the single particles of the second positive electrode active material is at least about 5 μm.

GEL POLYMER MATERIALS AND METHODS OF MAKING AND USE THEREOF

Resumen de: US2025226443A1

In one aspect, the disclosure relates to gel polymer compositions and articles comprising gel polymer compositions. In one aspect, the gel polymer compositions comprise: a first polymer comprising poly(ethylene glycol), poly(pentyl malonate), or a derivative thereof; poly(2,2′-disulfonyl-4,4-benzidine terephthalamide) (PBDT); and a salt. The disclosure also relates to methods for forming compositions disclosed herein, comprising: dissolving both a salt and a first polymer in a first solvent, thereby forming a first mixture; dissolving PBDT in a second solvent, thereby forming a second mixture; combining the first mixture and the second mixture, thereby forming an intermediate mixture; pouring the intermediate mixture onto a substrate; drying the intermediate mixture and the substrate; and removing the dried intermediate mixture from the substrate, thereby forming a polymer membrane. This abstract is intended as a scanning tool for purposes of searching in the particular art and is not intended to be limiting of the present disclosure.

BATTERY SELF-HEATING DEVICE AND VEHICLE

Resumen de: US2025226477A1

A battery self-heating device includes a battery self-heating circuit and a controller. The battery self-heating circuit includes a first battery group, a second battery group, a bridge arm, and a winding corresponding to the bridge arm. A negative electrode of the first battery group and a positive electrode of the second battery group are connected to each other, and are connected to an output end of the winding. An input end of the winding is connected to a midpoint of the bridge arm. A positive electrode of the first battery group is connected to a first bus end of the bridge arm. A negative electrode of the second battery group is connected to a second bus end of the bridge arm. The controller is configured to adjust the duty ratio of the bridge arm according to a target duty ratio range.

METHOD FOR PREPARING SULFIDE-BASED SOLID ELECTROLYTE

Resumen de: US2025226440A1

A method of preparing a sulfide-based solid electrolyte according to embodiments comprises mixing a solvent and precursors in a reactor. In the reactor, an open vacuum atmosphere is formed. While maintaining the open vacuum atmosphere in the reactor, a mixture inside the reactor may undergo a reaction under conditions of stirring or applying ultrasonic waves. Accordingly, a high-purity sulfide-based solid electrolyte may be prepared with high efficiency.

Battery Heater Failsafe Circuit

Resumen de: US2025226478A1

The present document describes systems and techniques of a battery heater failsafe circuit in a video-capturing doorbell. In aspects, the battery heater failsafe circuit is configured to monitor a temperature of one or more regions proximate or adjacent to a battery. If, while under software control of a processing unit, a battery heater is activated and, due to a software malfunction, the battery approaches or is equal to an upper threshold temperature, then the battery heater failsafe circuit can override the software-control of the battery heater to disconnect the battery heater from the processing unit and/or the battery. When, as a result, the temperature of the battery equals or drops below a lower threshold temperature, the battery heater failsafe circuit is capable of reconnecting the battery heater to the processing unit and/or the battery sufficient to enable a reactivation of the battery heater and allow heat generation.

POLYACRYLAMIDE ELECTROLYTES FOR BATTERIES THAT CYCLE LITHIUM IONS AND BATTERIES INCLUDING THE SAME

Resumen de: US2025226442A1

An electrolyte for a battery that cycles lithium ions includes a polyacrylamide and a liquid electrolyte immobilized in the polyacrylamide. The polyacrylamide includes acrylamide monomers covalently bonded to one another. The liquid electrolyte includes a lithium salt in an organic solvent.

NEGATIVE ELECTRODE ACTIVE MATERIAL, NEGATIVE ELECTRODE INCLUDING SAME, SECONDARY BATTERY INCLUDING SAME, AND METHOD FOR PREPARING NEGATIVE ELECTRODE ACTIVE MATERIAL

Resumen de: US2025226415A1

A negative electrode active material, a negative electrode including the same, a secondary battery including the same and a method for preparing a negative electrode active material are provided. The negative electrode active material comprises silicon-based particles comprising SiOx (0<x<2) and a lithium (Li) compound; a carbon layer provided on at least a part of a surface of the silicon-based particles; lithium fluoride (LiF); and carbon fluoride (CFa, 0<a<4), wherein a content (atomic percentage) of F is 10 at % or more and a content of Li is less than 10 at % according to a surface analysis of the negative electrode active material by X-ray photoelectron spectroscopy.

ZNP2 MODIFIED SEPARATOR TO IMPROVE THE ABSORPTION AND CONVERSION KINETIC OF POLYSULFIDES FOR METAL-SULPHUR BATTERIES

Resumen de: US2025226529A1

A ZnP2 coated separator as a barrier to restrict the polysulfide shuttling is provided. A ZnP2 coated separator have surface anchoring group to bind and catalyze sulfide conversion is also provided. Further, a process is provided for synthesizing the ZnP2 modified separator. Furthermore, an energy device with the coated separator is described.

NEW METHOD FOR THE PREPARATION OF A LI-P-S PRODUCT AND CORRESPONDING PRODUCTS

Resumen de: US2025226441A1

The present invention concerns a new method for the preparation of a Li-P-S product, as well as the products obtainable by said methods, and uses thereof especially as solid electrolytes.

BATTERY COOLING DEVICE

Resumen de: US2025226474A1

A battery cooling device for cooling a battery module having battery cells, includes: first and second coolers and a distribution pipe for dividing and supplying cooling liquid to the first and second coolers. Further, the distribution pipe includes an upstream pipe, first and second supply pipes, and a flow rate adjusting valve for adjusting a flow rate of the cooling liquid supplied to the first cooler, and the flow rate adjusting valve opens and closes according to the flow rate of the cooling liquid flowing through the upstream pipe, and opens as the flow rate of the cooling liquid flowing through the upstream pipe increases.

SECONDARY CELLS

Resumen de: US2025226439A1

A secondary cell is provided. The secondary cell comprises a solid electrolyte to conduct oxygen ions, a positive electrode configured to be in contact with the solid electrolyte, and a negative electrode configured to be in contact with the solid electrolyte. The positive and the negative electrode comprise a mixed ionic and electronic structure for conducting oxygen ions and electrons. The mixed ionic and electronic structure comprises an ABO3 structure, wherein the A site corresponds to a first chemical element with a first covalent radius, wherein the B site corresponds to a second chemical element with a second covalent radius; and/or a CeMO2 structure, wherein the Ce is Cerium and M is a metal.

Devices and Methods for Thermal Energy Storage by Direct Evaporative Cooling

Resumen de: US2025226475A1

Provided herein are direct evaporative cooling devices and systems that are in open and closed configurations for cooling hot solid components. The devices in both configurations generally have a casing with a perforated surface where sealed within are a water/vapor separator with a reservoir volume and a thermally conductive media therein through which heat evaporates water within the media such that evaporation cools the hot solid component. The closed configuration of the device includes a condensor to receive, recondense the vapor to water and re-inject the water into the reservoir volume.

NEGATIVE ELECTRODE PLATE, SECONDARY BATTERY, AND ELECTRONIC APPARATUS

Resumen de: US2025226438A1

A negative electrode plate includes a negative electrode material. The negative electrode material includes a matrix material, and a fast ion conductor is present on a surface of the matrix material. The fast ion conductor is a lithium lanthanum zirconium oxide. Dv50 of the matrix material is D1 μm, and Dv50 of the fast ion conductor is D2 μm, where D2/D1≤0.1 and 0.05≤D2≤1.

CATHODES AND ELECTROLYTES FOR RECHARGEABLE MAGNESIUM BATTERIES AND METHODS OF MANUFACTURE

Resumen de: US2025226437A1

The invention relates to Chevrel-phase materials and methods of preparing these materials utilizing a precursor approach. The Chevrel-phase materials are useful in assembling electrodes, e.g., cathodes, for use in electrochemical cells, such as rechargeable batteries. The Chevrel-phase materials have a general formula of Mo6Z8 (Z=sulfur) or Mo6Z18-yZ2y (Z1=sulfur; Z2=selenium), and partially cuprated Cu1Mo6Z8 as well as partially de-cuprated Cu1-xMgxMo6S8 and the precursors have a general formula of MxMo6Z8 or MxMo6Z18-yZ2y, M=Cu. The cathode containing the Chevrel-phase material in accordance with the invention can be combined with a magnesium-containing anode and an electrolyte.

SURFACE TREATED SOLID ELECTROLYTE LAYERS AND BATTERY CELLS THEREOF

Resumen de: US2025226457A1

An inorganic ion-conducting membrane treated to modify its surface properties can improve battery cell performance. Membrane surfaces positioned to directly interface with liquid electrolyte(s) on one or both of its major surfaces can be modified to mitigate polarization effects arising from ionic space charges at the solid electrolyte/liquid electrolyte interface when disposed in a battery cell. This surface modification can include fluid treatments that modify the ionic space charge layer to reduce battery cell polarization. The cell polarization can be reduced by at least 10 mV, 50 mV or at least 100 mV as a result of using this surface-modified membrane compared to the same membrane that was not surface-modified.

CYLINDRICAL NONAQUEOUS ELECTROLYTE SECONDARY BATTERY

Resumen de: US2025226454A1

A cylindrical nonaqueous electrolyte secondary battery according to the present invention is provided with: a wound electrode body which is obtained by winding a positive electrode and a negative electrode with a separator being interposed therebetween; a nonaqueous electrolyte; and an outer package can in which the electrode body and the nonaqueous electrolyte are contained. The negative electrode has a bent part, which is bent toward the inner winding side, at a position that is closer to the winding start point than a facing part which faces a leading end part of the positive electrode on the inner winding side of the leading end part. This nonaqueous electrolyte secondary battery can suppress deformation of the negative electrode toward the leading end part of the positive electrode, thereby achieving good cycle characteristics.

VEHICLE BATTERY UNIT

Resumen de: US2025226476A1

There is provided a vehicle battery unit including: a battery module including a battery cell stack where chargeable-dischargeable battery cells are stacked; a housing case including upper and lower cases and having a housing space to house the battery module; a flow-path forming plate defining a plate-shaped refrigerant-flow-path with the lower-case bottom at a predetermined flow-path interval, the battery module being cooled with a liquid-refrigerant flowing through the plate-shaped refrigerant-flow-path from a bottom-rear-surface of the lower case, the plate-shaped refrigerant-flow-path having a flow region accounting for 90% or more of the bottom-rear-surface of the lower case; a refrigerant-supply-nozzle being a slit or flat nozzle, the liquid-refrigerant being supplied through the refrigerant-supply-nozzle to flow over 90% or more of a flow path width of the plate-shaped refrigerant-flow-path; a liquid-refrigerant-supply header that supplies the liquid-refrigerant to the refrigerant-supply-nozzle; and a liquid-refrigerant-discharge header that discharges the liquid-refrigerant from the plate-shaped refrigerant-flow-path.

LI-ION BATTERY BASED SOLID ELECTROLYTE FLEXIBLE MEMBRANE

Resumen de: US2025226436A1

Embodiments of the present technology may include flexible all-solid-state lithium-ion batteries. The batteries may include a plurality of jelly roll battery cells. Each jelly roll battery cell may include a cathode, an anode. and a hybrid solid electrolyte membrane. The cathode may be or include a first self-supporting lithium-based composite. The anode may be or include a second self-supporting lithium-based composite. The hybrid solid electrolyte membrane may be positioned between the cathode and the anode.

HIGH-TEMPERATURE PRESSURIZING SYSTEM FOR ALL-SOLID-STATE SECONDARY BATTERY, AND METHOD THEREOF

Resumen de: US2025226434A1

Proposed are a high-temperature pressurizing system 1 for an all-solid-state secondary battery, and a method thereof. More specifically, Proposed are a high-temperature pressurizing system 1 for an all-solid-state secondary battery, and a method thereof, in which a pressurizing part, where a high-temperature pressurizing process is performed between a solid electrolyte and an active material of an all-solid-state secondary battery to maximize a contact interface and minimize an interfacial resistance, is configured along a perpendicular direction, thereby eliminating the need for a process of discharging a fluid from an internal space of a vessel after completing the high-temperature pressurizing process, reducing a tact time. At the same time, a plurality of pressurizing parts is arranged at predetermined intervals, thereby increasing process efficiency.

BATTERY CELL AND MANUFACTURING METHOD THEREOF

Resumen de: US2025226435A1

A battery cell and a method of manufacturing a battery cell are disclosed. A battery cell includes an electrode assembly including a first electrode plate and a second electrode plate, a case in which the electrode assembly is accommodated, a cap assembly configured to cover an open area of the case, and a gasket between an upper portion of the electrode assembly and the cap assembly and arranged in close contact with the case.

Aluminum-Air Fuel Cell Using Bioplastic Electrolyte

Resumen de: US2025226456A1

A method and apparatus for generating electricity using an electrochemical cell with a thin aluminum wire as the anode, oxygen extracted from ambient air as the cathode, and a bioplastic electrolyte. The invention teaches the use of inexpensive materials and simplified fuel cell construction and assembling of cells into modules, and modules into ultra-low-cost electricity generators.

COMPLEX ELECTROLYTES AND OTHER COMPOSITIONS FOR METAL-ION BATTERIES

Resumen de: US2025226449A1

Batteries such as Li-ion batteries are provided that comprise anode and cathode electrodes, an electrolyte ionically coupling the anode and the cathode, and a separator electrically separating the anode and the cathode. In some designs, the electrolyte may comprise, for example, a mixture of (i) a Li-ion salt with (ii) at least one other metal salt having a metal with a standard reduction potential below −2.3 V vs. Standard Hydrogen Electrode (SHE). In other designs, the electrolyte may be disposed in conjunction with an electrolyte solvent that comprises, for example, about 10 to about 100 wt. % ether. In still other designs, the battery may further comprise anode and cathode interfacial layers (e.g., solid electrolyte interphase (SEI)) disposed between the respective electrode and the electrolyte and having different types of fragments of electrolyte solvent molecules as compared to each other.

ELECTRODE ASSEMBLY, BATTERY, AND BATTERY PACK AND VEHICLE INCLUDING THE SAME

Resumen de: US2025226432A1

An electrode assembly, a battery, a battery pack and a vehicle including the same are provided. In the electrode assembly, the uncoated portion of an electrode includes a segment region divided into a plurality of segments, and the segment region includes a plurality of segment groups separated by a group separation pitch along a winding direction. One end of the electrode assembly includes a plurality of segment alignments. In winding turns corresponding to the plurality of segment alignments, group separation pitches of segment groups disposed in a same winding turn are substantially identical, and separation pitches of the segment groups is greater in a winding turn of a region adjacent to the outer circumference of the electrode assembly than in a winding turn of a region adjacent to the core of the electrode assembly.

METHOD AND APPARATUS FOR RETROFITTING BATTERY-OPERATED DEVICES

Resumen de: US2025226465A1

A module for providing power to a battery-operated device having a body in which is formed a battery compartment and a cover having one or more first elements cooperable with one or more second elements provided to the body for releasably positioning the cover over the battery compartment. The module has an energy-generating surface, an energy storage device coupled to the energy-generating surface, and a storage device cover positionable over the energy-generating surface. The storage device cover has one or more third elements cooperable with the one or more second elements provided to the body for releasably positioning the module cover over the battery compartment when the energy storage device is positioned within the battery compartment in engagement with one or more electrical contacts positioned within the battery compartment.

BATTERY MODULE AND BATTERY PACK

Resumen de: US2025226469A1

A battery module as provided includes a battery, a wiring harness board, a circuit board, a compressing piece and a temperature acquisition assembly. The battery includes a top cover. The wiring harness board is arranged on an outer side of the top of the top cover. The circuit board is arranged on a side, away from the battery, of the wiring harness board. The compressing piece is mounted on the wiring harness board. The temperature acquisition assembly includes a thermistor, and the thermistor is electrically connected to the circuit board. The compressing piece compresses the thermistor of the temperature acquisition assembly, so that the thermistor compresses the top cover. The temperature acquisition assembly acquires a temperature of the top cover of the battery, with a short temperature transfer path and rapid temperature transfer response.

PRESSURE-MONITORING FOR ELECTROCHEMICAL CELLS AND RELATED DEVICES AND SYSTEMS

Resumen de: US2025226466A1

Systems and methods for measuring pressure applied to electrochemical cells are generally described. In some aspects, electrochemical devices including an electrochemical cell and an associated sensor are provided. The sensor may be configured to produce a signal indicative of the pressure experienced by the electrochemical cell. In some instances, the sensor measures the applied pressure by being responsive to displacement of load-bearing components of the electrochemical device. Such a configuration may permit the sensor to accurately measure the pressure at the cell while being positioned adjacent to an electrochemical device housing component rather than overlapping with the cell itself. For example, in some embodiments a strain gauge adjacent to a load-bearing member of an electrochemical device housing such as a housing fastener or frame component is employed to measure cell pressure.

PRESSING APPARATUS, ELECTRODE PLATE PROCESSING EQUIPMENT, BATTERY PROCESSING EQUIPMENT

Resumen de: US2025226433A1

A pressing apparatus, electrode plate processing equipment, and battery processing equipment are disclosed. The battery processing equipment includes the electrode plate processing equipment and shaping equipment. The electrode plate processing equipment includes the pressing apparatus. The pressing apparatus includes a first pressing piece with a first surface and a second pressing piece with a second surface. The first surface and the second surface are configured to coordinate to press a target piece. The first surface and/or the second surface are provided with a clearance groove. The clearance groove provides a clearance for a part of the separator, so that the separator is still sticky during shaping, thereby alleviating the problem of inferior adhesion in the electrode assembly.

Method for Generating a Recyclate from Dry Coating Material, Recyclate, Method for Solvent-Free Electrode Production and Electrode

Resumen de: US2025226471A1

A method for generating a recyclate from dry coating material includes providing an agglomerated solidified coating material, where the coating material has a binder in the form of fibrils which form aggregates. A recyclate is generated by introducing forces, especially shearing forces, into the coating material in such a way that the agglomerate is broken up and the aggregate-forming fibrils are retained.

Spectral Image-based Battery Heat Generation Inspection Method and Apparatus Supporting Same

Resumen de: US2025226463A1

Disclosed may be a spectral image-based battery heat generation inspection method and an apparatus supporting same, the method comprising the steps of: collecting a current spectral image of a battery that is being charged or discharged; performing processing on the current spectral image; a processor, on the basis of the result of the processing, determining whether the battery is of high quality or poor quality; and outputting the result of determining whether being of high quality or poor quality.

CARBON AEROGEL-BASED LITHIUM METAL ANODE MATERIALS AND METHODS OF MANUFACTURE THEREOF

Resumen de: US2025226423A1

The present disclosure discusses a system with a nanoporous carbon material with a pore structure and lithium metal disposed adjacent to the nanoporous carbon material. The present disclosure discussion includes an electrical energy storage device including at least one anode, at least one cathode, and an electrolyte comprising lithium ions, wherein the electrical energy storage device has a first cycle efficiency of at least 50% and a reversible capacity of at least 150 mAh/g.

ULTRAVIOLET-CURABLE GLUING REAGENT FOR ELECTRODE STACKING

Resumen de: US2025226431A1

Aspects of the disclosure include ultraviolet-curable gluing reagents and methods of using the same for electrode stacking. An exemplary vehicle includes an electric motor and a battery pack electrically coupled to the electric motor. The battery pack includes a plurality of battery cells, each battery cell having an electrode stack. The electrode stack of each battery cell includes a plurality of battery foils separated by an insulated member in a stacked configuration that includes alternating battery foil and insulated member layers. The electrode stack of each battery cell further includes an ultraviolet-curable gluing reagent. The ultraviolet-curable gluing reagent is applied between the alternating battery foil and insulated member layers, thereby gluing the plurality of battery foils to the insulated member. The ultraviolet-curable gluing reagent includes a multifunctional acrylate crosslinking agent and an initiator.

Verfahren zum Herstellen einer Kühlmittelführung zum Kühlen von zumindest einer Batteriezelle für einen elektrischen Energiespeicher eines zumindest teilweise elektrisch betriebenen Kraftfahrzeugs, Kühlmittelführung sowie elektrischer Energiespeicher

Resumen de: DE102024100585A1

Die Erfindung betrifft ein Verfahren zum Herstellen einer Kühlmittelführung zum Kühlen von zumindest einer Batteriezelle (12) für einen elektrischen Energiespeicher (10) eines zumindest teilweise elektrisch betriebenen Kraftfahrzeugs, mit den Schritten Bereitstellen eines ersten Kühlmittelführungsteils (20) der Kühlmittelführung (16, 18) und eines zweiten Kühlmittelführungsteils (22) der Kühlmittelführung (16, 18), Bereitstellen eines Verbindungselements (24) zum Verbinden des ersten Kühlmittelführungsteils (20) und des zweiten Kühlmittelführungsteils (22), Bereitstellen eines thermischen Überzugs (32) für das Verbindungselement (24), Verbinden der beiden Kühlmittelführungsteile (20, 22) mittels des Verbindungselements (24), und Erwärmen des thermischen Überzugs (32) nach dem Verbinden der beiden Kühlmittelführungsteile (20, 22). Ferner betrifft die Erfindung eine Kühlmittelführung (16, 18) sowie einen elektrischen Energiespeicher (10).

ULTRAVIOLETT AUSHÄRTBARES KLEBEREAGENZ FÜR DIE ELEKTRODENSTAPELUNG

Resumen de: DE102024123513A1

Aspekte der Offenbarung umfassen ultraviolett aushärtbare Klebereagenzien und Verfahren unter Verwendung derselben für die Elektrodenstapelung. Ein beispielhaftes Fahrzeug umfasst einen Elektromotor und ein Batteriepack, das elektrisch mit dem Elektromotor gekoppelt ist. Das Batteriepack umfasst eine Mehrzahl von Batteriezellen, wobei jede Batteriezelle einen Elektrodenstapel aufweist. Der Elektrodenstapel jeder Batteriezelle umfasst eine Mehrzahl von Batteriefolien, die durch ein isoliertes Element in einer gestapelten Konfiguration getrennt sind, die eine abwechselnde Batteriefolie und isolierte Elementschichten umfasst. Der Elektrodenstapel jeder Batteriezelle umfasst ferner ein ultraviolett aushärtbares Klebereagenz. Das ultraviolett aushärtbare Klebereagenz wird zwischen der abwechselnden Batteriefolie und isolierten Elementschichten aufgetragen, wodurch die Mehrzahl von Batteriefolien an das isolierte Element geklebt wird. Das ultraviolett aushärtbare Klebereagenz umfasst ein multifunktionelles Acrylatvernetzungsmittel und einen Initiator.

BATTERY TRAY AND METHOD FOR LOW PRESSURE DIE CASTING A BATTERY TRAY

Resumen de: WO2025146586A1

The invention relates to a battery tray for receiving at least one battery cell serving as a drive energy storage device for an electrically driven vehicle, wherein the battery tray (2) is connectable to a body of the vehicle, the battery tray (2) comprising: a substantially circumferential frame structure (4) comprising longitudinal sides (6) and transverse sides (8) for forming a receiving area (14) for the at least one battery cell, wherein the battery tray (2) is formed in one piece from a light metal material, in particular cast in one piece from a light metal material; wherein the receiving area (14) comprises an area of at least 0.5 m2, preferably of at least 0.75 m2, more preferably of at least 1 m2. The invention also relates to a method for low pressure die casting a battery tray.

Batterie sowie Verfahren zu deren Betrieb

Resumen de: DE102024100631A1

Batterie (10), insbesondere Hochvolt-Batterie, aufweisend eine wenigstens eine Batteriezelle (11) umschließende Hülle (12), wobei an einer von der Batteriezelle (11) wegweisenden Außenseite (13) der Hülle (12) ein Sensor (14) über eine Kontaktfläche (15) angeordnet ist und die Außenseite (13) wenigstens in dem Bereich der Kontaktfläche (15) mit einem thermoelektrischen Wandler (16) belegt ist, der eingerichtet ist, von der Batteriezelle (11) während ihres Betriebs abgegebene Wärme in elektrische Energie umzuwandeln und in den Sensor (14) einzuspeisen, um diesen für seinen bestimmungsgemäßen Betrieb mit elektrischer Energie zu versorgen; ferner ein Verfahren zum Betreiben einer Batterie (10).

Temperiervorrichtung, Batterieanordnung und Verfahren zum Betrieb einer Temperiervorrichtung

Resumen de: DE102024000055A1

Die Erfindung betrifft eine Temperiervorrichtung (4) mit einem Temperierkreislauf (4.1) zur Temperierung einer eine elektrische Batterie (2) und eine zur Steuerung eines Betriebs der Batterie (2) ausgebildete Batteriesteuereinheit (3) aufweisenden Batterieanordnung (1), wobei Temperierkreislauf (4.1) einen mit einem Temperiermedium durchströmbaren ersten Teilkreislauf (4.1.1) und einen mit dem Temperiermedium durchströmbaren zweiten Teilkreislauf (4.1.2) aufweist, wobei der erste Teilkreislauf (4.1.1) thermisch mit der Batterie (2) gekoppelt ist und der zweite Teilkreislauf (4.1.2) thermisch mit der Batteriesteuereinheit (3) gekoppelt ist, in Strömungsrichtung nach einer Fördereinheit (4.2) ein Ventil (4.6) mit einem Eingang (4.6.1), einem ersten Ausgang (4.6.2) und einem zweiten Ausgang (4.6.3) angeordnet ist, wobei der Eingang (4.6.1) zumindest mittelbar mit einem Ausgang der Fördereinheit (4.2) gekoppelt ist, der erste Ausgang (4.6.2) mit einem Eingang des ersten Teilkreislaufs (4.1.1) gekoppelt ist und der zweite Ausgang (4.6.3) mit einem Eingang des zweiten Teilkreislaufs (4.1.2) gekoppelt ist, und mit dem Ventil (4.6) die Batteriesteuereinheit (3) datentechnisch gekoppelt ist, welche ausgebildet ist, das Ventil (4.6) in Abhängigkeit eines Temperierungsbedarfs der Batterie (2) und der Batteriesteuereinheit (3) zu steuern.

POLYACRYLAT-ELEKTROLYTE FÜR BATTERIEN, DIE LITHIUM-IONEN ZYKLISIEREN, UND BATTERIEN, DIE DIESE ENTHALTEN

Resumen de: DE102024111668A1

Ein Elektrolyt für eine Batterie, die Lithium-Ionen zyklisiert, enthält ein Polyacrylat und einen flüssigen Elektrolyten, der in dem Polyacrylat immobilisiert ist. Das Polyacrylat enthält kovalent aneinander gebundene Acrylatmonomere. Der flüssige Elektrolyt enthält ein Lithiumsalz in einem organischen Lösungsmittel.

Kathodenisolationsbeschichtung

Resumen de: DE102024105212A1

Aspekte der Offenbarung umfassen Kathodenisolationsbeschichtungen und Beschichtungsüberlappungsausführungen, die eine poröse Abscheidung von Kathodenisolationsbeschichtungsmaterial nutzen. Ein beispielhaftes Fahrzeug umfasst einen Elektromotor und ein Akkupack, das elektrisch mit dem Elektromotor gekoppelt ist. Das Akkupack umfasst eine Vielzahl von Akkumulatorzellen. Jede Akkumulatorzelle umfasst einen Kathodenstromkollektor mit einer Kathodenlasche, ein Kathodenaktivmaterial, das über den Kathodenstromkollektor verteilt ist, und eine Kathodenisolationsbeschichtung. Die Kathodenisolationsbeschichtung wird direkt auf einem Teil des Kathodenaktivmaterials und direkt auf einem Teil der Kathodenlasche gebildet. Die Kathodenisolationsbeschichtung umfasst eine poröse Makrostruktur, die so gemustert ist, dass Teile des Kathodenaktivmaterials, die unter der Kathodenisolationsbeschichtung liegen, freigelegt werden, wodurch eine poröse Kathodenisolationsbeschichtung bereitgestellt wird, die vor einer Fehlausrichtung und einem Verrutschen des Separators mit einem geringeren Verlust an Ionentransportdynamik schützt.

ELEKTROCHEMISCHE DIFFERENZIALMASSENSPEKTROMETRIE FÜR DIE ONLINE-GASENTWICKLUNG VON POUCH-ZELLEN

Resumen de: DE102024108814A1

Ein Verfahren zur elektrochemischen Differenzialmassenspektrometrie für die Online-Gasentwicklung von Pouch-Zellen umfasst das Zuführen eines inerten Trägergases zu einer Pouch-Zelle und das Zuführen von Gas aus der Pouch-Zelle zur Aufnahme eines elektrochemischen Differenzialmassenspektrometers. Ein System zum kontinuierlichen Überwachen der quantitativen Gasentwicklung in einer Pouch-Zelle, das ein Differenzialmassenspektrometer, eine Zufuhr von inertem Trägergas, eine Leitung, die mit der Pouch-Zelle verbunden ist, um inertes Trägergas zur Pouch-Zelle zu leiten; und eine die Pouch-Zelle verbindende Leitung umfasst, um Gas von der Pouch-Zelle zum Differenzialmassenspektrometer zu leiten.

POLYACRYLAMID-ELEKTROLYTE FÜR BATTERIEN, DIE LITHIUMIONEN ZYKLISIEREN, UND BATTERIEN, DIE SELBIGE ENTHALTEN

Resumen de: DE102024112701A1

Ein Elektrolyt für eine Batterie, die Lithiumionen zyklisiert, umfasst ein Polyacrylamid und einen flüssigen Elektrolyten, der in dem Polyacrylamid immobilisiert ist. Das Polyacrylamid umfasst Acrylamidmonomere, die kovalent aneinander gebunden sind. Der flüssige Elektrolyt umfasst ein Lithiumsalz in einem organischen Lösungsmittel.

Batterieanordnung und Fahrzeug

Resumen de: DE102024000054A1

Die Erfindung betrifft eine Batterieanordnung (2), umfassend eine Mehrzahl von Einzelzellen (22), die in einem Batteriegehäuse (21) angeordnet sind, eine an oder in dem Batteriegehäuse (21) angeordnete erste Wärmesenke (23), die durch Kühlmittelleitungen (41) mit einem Kühlaggregat (40) zu einem Kühlmittelkreislauf (4) verbunden ist, sowie eine Hilfseinrichtung (3) mit mindestens einer Elektronikkomponente (32), die in einem Elektronikgehäuse (31) angeordnet ist, wobei an oder in dem Elektronikgehäuse (31) eine zweite Wärmesenke (33) angeordnet ist, welche ebenfalls in den Kühlmittelkreislauf (4) eingebunden ist, wobei die zweite Wärmesenke (33) mittels selbsttätig sperrender Kopplungseinrichtungen (42) mit den Kühlmittelleitungen (41) lösbar verbunden ist, und ein Fahrzeug (1) mit einer solchen Batterieanordnung (2).

System und Verfahren zum Betreiben eines Hybrid- oder Elektrofahrzeugs

Resumen de: DE102024100427A1

Die vorliegende Offenbarung betrifft ein System (100) zum Betreiben eines Hybrid- oder Elektrofahrzeugs (1), umfassend ein Konditionierungsmodul (110), das eingerichtet ist, um einen Antriebsenergiespeicher (12) des Hybrid- oder Elektrofahrzeugs (10) vor einem Ladevorgang thermisch vorzukonditionieren; und ein Steuermodul (120), das eingerichtet ist, um:- vor Fahrtbeginn basierend auf wenigstens einem Ladekriterium zu bestimmen, ob potenziell ein Schnellladevorgang des Antriebsenergiespeichers (12) bevorsteht;- über eine Benutzerschnittstelle (20) einen Nutzerhinweis (NH) an einen Nutzer des Hybrid- oder Elektrofahrzeugs (10) in Bezug auf eine Vorkonditionierung des Antriebsenergiespeichers (12) vor dem Fahrtbeginn auszugeben oder die Ausgabe des Nutzerhinweises (NH) zu veranlassen, wenn bestimmt wird, dass potenziell ein Schnellladevorgang des Antriebsenergiespeichers (12) bevorsteht; und- das Konditionierungsmodul (120) derart anzusteuern, dass die Vorkonditionierung des Antriebsenergiespeichers (12) vor dem Fahrtbeginn beginnt, wenn an der Benutzerschnittstelle (20) auf den Nutzerhinweis (NH) hin eine entsprechende Nutzereingabe (NE) empfangen wird.

VERFAHREN UND SYSTEM ZUM REAGIEREN AUF EIN ENERGIEVERBRAUCHSEREIGNIS

Resumen de: DE102024123505A1

Es wird ein Verfahren zum Handhaben eines Energieverbrauchsereignisses bereitgestellt. Aspekte umfassen das Detektieren eines Defekts in einer ersten Energiespeichervorrichtung und das Übertragen von Energie von der ersten Energiespeichervorrichtung zu einer zweiten Energiespeichervorrichtung, die mit der ersten Energiespeichervorrichtung elektrisch verbunden ist, basierend auf einer Bestimmung, dass ein Ladezustand der ersten Energiespeichervorrichtung über einem ersten Grenzwert liegt. Aspekte umfassen auch das Beenden der Energieübertragung von der ersten Energiespeichervorrichtung an die zweite Energiespeichervorrichtung basierend auf einer Bestimmung, dass der Ladezustand der ersten Energiespeichervorrichtung unter einen zweiten Grenzwert gefallen ist, der gleich oder niedriger als der erste Grenzwert ist.

Verfahren und Vorrichtung zum prädiktiven Betreiben einer Gerätebatterie mit einem Energieversorgungsnetz

Resumen de: DE102023213289A1

Die Erfindung betrifft ein computer-implementiertes Verfahren zum Betreiben einer Gerätebatterie (41) eines technischen Geräts (4) insbesondere an einer Ladestation (3) mit einem elektrischen Energieversorgungsnetz (2) mit variierenden Energieverfügbarkeiten, mit folgenden Schritten:- Ermitteln (S4) eines prädizierten zeitlichen Verlaufs einer Energieverfügbarkeit in dem Energieversorgungsnetz (2) mithilfe eines Energieprädiktionsmodells;- Bereitstellen (S6) von Lade- und Entladeprofilen für die Gerätebatterie (41);- Bereitstellen eines Alterungszustandsmodells, das ausgebildet ist, um basierend auf zeitlichen Verläufen von Betriebsgrößen der Gerätebatterie (41) eine Alterungszustandsänderung zu ermitteln;- Bereitstellen einer Angabe eines Ziel-Ladezustands und eines Optimierungszeitraums, nach dem der Ziel-Ladezustand erreicht sein soll;- Durchführen eines Optimierungsverfahrens basierend auf einer Kostenfunktion, die von der prädizierten Energieverfügbarkeit im Energieversorgungsnetz während der Optimierungszeitdauer, der Energieaufnahme und Energieabgabe der Gerätebatterie (41) während der Optimierungszeitdauer und einer Alterungszustandsänderung zum Ende der Optimierungszeitdauer abhängt, und der Angabe des Ziel-Ladezustands, um ein Nutzungsprofil zu erhalten, das eine zeitliche Abfolge von Zeitabschnitten der Nutzung von Ladeprofilen und/oder Entladeprofilen angibt;- Bereitstellen (S7) des Nutzungsprofils zum Betrieb der Gerätebatterie (41) als Puff

System und Verfahren zum Betreiben eines Hybrid- oder Elektrofahrzeugs

Resumen de: DE102024100426A1

Die vorliegende Offenbarung betrifft ein System (100) zum Betreiben eines Hybrid- oder Elektrofahrzeugs (1), umfassend ein Konditionierungsmodul (110), das eingerichtet ist, um einen Antriebsenergiespeicher (12) des Hybrid- oder Elektrofahrzeugs (10) vor einem Ladevorgang thermisch vorzukonditionieren; und ein Steuermodul (120), das eingerichtet ist, um:- wenigstens eine Zeit- und/oder Ortseigenschaft, die mit einer Außentemperatur in Beziehung steht, zu bestimmen;- basierend auf wenigstens einem Ladekriterium zu bestimmen, ob potenziell ein Schnellladevorgang des Antriebsenergiespeichers (12) bevorsteht;- über eine Benutzerschnittstelle (20) einen Nutzerhinweis (NH) an einen Nutzer des Hybrid- oder Elektrofahrzeugs (10) in Bezug auf eine Vorkonditionierung des Antriebsenergiespeichers (12) auszugeben oder die Ausgabe des Nutzerhinweises (NH) zu veranlassen, wenn bestimmt wird, dass potenziell ein Schnellladevorgang des Antriebsenergiespeichers (12) bevorsteht und die wenigstens eine Zeit- und/oder Ortseigenschaft einer Referenz entspricht; und- das Konditionierungsmodul (110) für die Vorkonditionierung des Antriebsenergiespeichers (12) anzusteuern.

Stromkollektordiagnose

Resumen de: DE102024105213A1

Es sind Techniken für die Stromkollektordiagnose vorgesehen. Bei einer Ausgestaltung umfassen die Techniken das Feststellen, dass ein Strom durch einen Stromkollektor der Akkumulatorzelle fließt, das Erzeugen einer mechanischen Erregung für den Stromkollektor, das Ermitteln einer Amplitude der Spannung über der Akkumulatorzelle auf der Grundlage der mechanischen Erregung und das Feststellen des Vorhandenseins eines Risses oder einer Abtrennung einer Folie des Stromkollektors auf der Grundlage der Amplitude der Spannung über der Akkumulatorzelle.

IMPROVED ANODE

Resumen de: WO2025147189A1

This invention relates to anodes comprising: a current collector; and a layer comprising active material comprising silicon on the current collector, wherein the layer comprises regions surrounded by gaps; wherein the regions comprise silicon; wherein the regions comprise sloped lateral surfaces; wherein the mean distance between the regions is greater at the top surface of the regions than near the current collector surface; and wherein the gaps comprise an area of from 5% to 35% of the top surface area of the anode. Also disclosed are lithium-ion cells and batteries comprising the anode. Also disclosed are methods of preparing the anodes and the lithium-ion cells. Also disclosed are uses of the anodes.

Schottwanddichtung

Resumen de: DE102024100211A1

Die Erfindung betrifft eine Schottwanddichtung zur Abdichtung eines ersten Energiespeichermoduls zu einem zweiten Energiespeichermodul in einem gemeinsamen Gehäuse, wobei das erste Energiespeichermodul und das zweite Energiespeichermodul durch eine Schottwand voneinander getrennt sind. Die Schottwanddichtung umfasst einen Befestigungsbereich, welcher eingerichtet ist, an der Schottwand befestigt zu werden, eine erste Dichtlippe, eine zweite Dichtlippe und eine mittlere Dichtlippe, welche zwischen der ersten Dichtlippe und der zweiten Dichtlippe angeordnet ist. Somit bildet sich zwischen der mittleren Dichtlippe und der ersten Dichtlippe ein erster Zwischenraum. Zwischen der zweiten Dichtlippe und der mittleren Dichtlippe bildet sich ein zweiter Zwischenraum. Dabei sind die erste Dichtlippe, die zweite Dichtlippe und die mittlere Dichtlippe eingerichtet, das Gehäuse zu kontaktieren. Die erste Dichtlippe ist eingerichtet, das erste Energiespeichermodul zum ersten Zwischenraum abzudichten und die zweite Dichtlippe ist eingerichtet, das zweite Energiespeichermodul zum zweiten Zwischenraum abzudichten. Dabei ist die mittlere Dichtlippe eingerichtet, den ersten Zwischenraum zum zweiten Zwischenraum abzudichten.

HIGH-NICKEL COBALT-FREE POSITIVE ELECTRODE MATERIAL CAPABLE OF DUAL RESIDUAL ALKALI REDUCTION AND PREPARATION METHOD THEREFOR

Resumen de: WO2025145689A1

A high-nickel cobalt-free positive electrode material capable of dual residual alkali reduction and a preparation method therefor. The chemical expression of the high-nickel cobalt-free positive electrode material is LixNiyMn1-yAzO2, where 0.75＜y≤0.95, 0.95≤x≤1.15, and 0.001＜z≤0.005. Primary residual alkali reduction is implemented by means of water washing. In-situ formation of perovskite on the surface of the material consumes residual alkali in the material so as to achieve secondary residual alkali reduction, and can simultaneously form a LaaLibCoO3 perovskite coating layer. Because of the formed perovskite coating layer, the positive electrode material has high lithium ionic conductivity, a good capacity retention capacity and rate capability, and high reversibility. The prepared high-nickel cobalt-free positive electrode material has low residual alkali, a high discharge capacity, a good rate capability and good battery cycle performance.

NEGATIVE CURRENT COLLECTOR AND PREPARATION METHOD THEREOF, NEGATIVE ELECTRODE PLATE, SECONDARY BATTERY, AND ELECTRICAL DEVICE

Resumen de: US2025226384A1

A negative current collector, the preparation method of the negative current collector, a positive electrode plate, a secondary battery and an electrical device are described. The negative current collector includes a substrate and a lithium alloy, where the lithium alloy is disposed on a surface of the substrate, and the lithium alloy includes lithium and a matrix material, an atomic ratio of lithium in the lithium alloy is 30% to 50%, and a plating amount of the lithium alloy is 2/m2 to 3/m2. During the charging process of the secondary battery, lithium atoms can be oxidized into lithium ions and enter an electrolyte solution to supplement lithium consumed for forming a solid electrolyte interphase (SEI) on a negative electrode of a lithium-ion battery, which helps to improve the quality of the SEI, thereby improving an first-cycle Coulombic efficiency of the secondary battery.

NEGATIVE ELECTRODE PLATE AND ELECTRODE ASSEMBLY, BATTERY CELL, BATTERY, AND ELECTRIC APPARATUS CONTAINING SAME

Resumen de: US2025226399A1

A negative electrode plate and an electrode assembly, a battery cell, a battery, and an electric apparatus containing the same are provided. The negative electrode plate (10) includes: a negative electrode current collector, having a first surface (10a) and a second surface (10b) opposite each other in a thickness direction of the negative electrode current collector; a first negative electrode film layer located on the first surface side, the first negative electrode film layer including first silicon-based negative electrode active material particles; and a second negative electrode film layer located on the second surface side, the second negative electrode film layer including second silicon-based negative electrode active material particles; where a capacity C1 per unit area of the first negative electrode film layer and a capacity C2 per unit area of the second negative electrode film layer satisfy: 0.005 mAh/mm2≤C2

ELECTRODE FOR RECHARGEABLE LITHIUM BATTERY AND RECHARGEABLE LITHIUM BATTERY INCLUDING THE SAME

Resumen de: US2025226383A1

Electrodes and rechargeable lithium batteries including the same are provided. The electrode comprises a current collector, and a multiple active material layer on the current collector. The multiple active material layer includes a first electrode mixture layer on the current collector, a second electrode mixture layer on the first electrode mixture layer, and a third electrode mixture layer on the second electrode mixture layer. Each of the first, second, and third electrode mixture layers includes an electrode active material and a binder. The first, second, and third electrode mixture layers have different binder amounts. A first thickness of the first electrode mixture layer is less than a second thickness of the second electrode mixture layer. The first thickness is less than a third thickness of the third electrode mixture layer.

ANODE-SOLID ELECTROLYTE SUBASSEMBLY FOR ALL-SOLID SECONDARY BATTERY, AND ALL-SOLID SECONDARY BATTERY INCLUDING THE SAME

Resumen de: US2025226395A1

An anode-solid electrolyte subassembly includes an anode current collector, an anode active material layer disposed on the anode current collector, and a solid electrolyte disposed on the anode active material layer. The anode active material layer includes a first anode active material layer contacting the solid electrolyte, and a second anode active material layer contacting the anode current collector. The first anode active material layer includes a first anode active material containing: a mixture/composite of a carbon and one or more first elements selected from metals and metalloids, and the second anode active material layer includes a second anode active material containing: a mixture/composite of a carbon and one or more second elements selected from metals and metalloids, wherein the amount of the first elements is more than the amount of the second elements, and the amount of the first elements is about 25 wt % to about 80 wt % with respect to the total weight of the first anode active material.

Electrode Assembly And Secondary Battery Including The Same

Resumen de: US2025226381A1

An electrode assembly includes a mono-cell group including at least one mono-cell; a single-sided electrode stacked on at least one side of the upper outermost side and the lower outermost side of the mono-cell group; and a separator interposed between the mono-cell group and the single-sided electrode. The single-sided electrode includes a current collector and an electrode layer disposed merely on one side of the current collector. The electrode layer has a porosity of 30% or less, and the single-sided electrode shows a curl of 30 mm or less. The method of preparing the single-sided electrode is also provided. Additionally, a secondary battery including the electrode assembly and an energy storage system is provided.

SEPARATOR, BATTERY AND ELECTRIC APPARATUS

Resumen de: US2025226533A1

A separator, a battery including the separator, and an electric apparatus including the battery. The separator includes a separator substrate, and the separator substrate satisfies at least one of the following conditions: the separator substrate includes a reinforced fiber layer; and at least one side surface of the separator substrate has a reinforced coating layer.

CELL BATTERY, BATTERY PACK, AND ELECTRICAL DEVICE

Resumen de: US2025226495A1

Provided are a cell battery, a battery pack, and an electrical device. The cell battery includes: a housing; a first end cover provided at an end of the housing, the first end cover including a first base cover and a first explosion-proof valve mounted at the first base cover, and a second end cover provided at the other end of the housing, the second end cover including a second base cover and a second explosion-proof valve mounted at the second base cover.

BATTERY PACK AND ELECTRIC DEVICE

Resumen de: US2025226540A1

A battery pack includes a cell assembly and a connecting member. The cell assembly includes M cells stacked along a first direction. Each cell includes a cell housing, an electrode terminal, and an electrode assembly disposed within the cell housing. The connecting member includes N conductive sheets spaced apart. The electrode terminal is connected to the conductive sheet. Electrode terminals of adjacent cells are arranged in a non-overlapping manner in the first direction, reducing the risk of short circuits between adjacent electrode terminals. The electrode terminal is connected to the electrode assembly and extends out from the cell housing. Along the first direction, a projection of a portion, located outside the cell housing, of an electrode terminal of any one of the cells is separated from a projection of a portion, located outside the cell housing, of an electrode terminal of an adjacent cell in a second direction.

BATTERY TRAY ASSEMBLY, BATTERY PACK AND VEHICLE

Resumen de: US2025226508A1

A battery tray assembly includes a tray and an electrically conductive member. The tray includes a mounting space and a detection port, the mounting space is configured to accommodate a battery module, and the tray is configured to be insulated from the battery module. The electrically conductive member is electrically connected to a potential point, at least a first part of the electrically conductive member is disposed inside the tray, and at least a second part of the electrically conductive member is exposed from the detection port and configured to detect whether an electrically conductive medium is present in the detection port.

METHOD OF MANUFACTURING ALL-SOLID-STATE BATTERY

Resumen de: US2025226453A1

A method for manufacturing an all-solid-state battery capable of suppressing a short phenomenon occurring at a lateral portion during battery operation by laminating each of the unit cells after isostatic pressurization is provided. The method of manufacturing an all-solid-state battery includes the steps of a) sequentially laminating a solid electrolyte and a positive electrode on one side or both sides of a negative electrode to form a monocell or bicell; b) isostatically pressurizing the monocell or bicell; and c) laminating two or more of the isostatically pressurized monocells or bicells with a positive electrode current collector interposed therebetween, thereby contacting both sides of the interposed positive electrode current collector with the positive electrodes.

BATTERY PACK

Resumen de: US2025226493A1

A battery pack includes a battery cell and a pouch accommodating the battery cell. The pouch includes a terrace extending in a first direction in which an electrode of the battery cell is drawn out. The pouch also includes a substrate including a protection element on a first surface configured to control charging and discharging of the battery cell. A second surface opposing the first surface is opposite to a module seating surface of the terrace. The pouch also includes a molding portion covering the protection element on the first surface, and a support between the molding portion and the substrate and configured to support the substrate.

LITHIUM SECONDARY BATTERY

Resumen de: US2025226417A1

A lithium secondary battery includes an electrode group having a positive electrode, a negative electrode, and a separator. When D represents a length in a radial direction from an inner circumferential surface to an outer circumferential surface of the electrode group in a cross section perpendicular to a winding axis of the electrode group in a discharged state, the electrode group in the discharged state includes a first region that is within a distance of (1⁄4)×D from the inner circumferential surface of the electrode group and a second region that is within a distance of (1⁄4)×D from the outer circumferential surface of the electrode group. In the electrode group in the discharged state, an inter-electrode distance X1 between the positive electrode and the negative electrode in the first region and an inter-electrode distance X2 between the positive electrode and the negative electrode in the second region have a relationship: 2≤X1/X2.

MANUFACTURING METHOD OF ELECTRODE LAYER

Resumen de: US2025226379A1

Provided is a manufacturing method of an electrode layer, including a step A of forming an electrode material film on a collector foil, where the collector foil is transported using a transport member in which a plurality of pallets are connected in one direction, along a connection direction of the pallets, a step B of spacing the connected pallets apart from each other to divide a laminate of the collector foil and the electrode material film for each one pallet, and a step C of transporting the pallet on which the divided laminate of the collector foil and the electrode material film is placed along the connection direction of the pallets, and measuring a density and a thickness of the electrode material film using an X-ray examination device.

ELECTROCHEMICAL APPARATUS AND ELECTRONIC APPARATUS

Resumen de: US2025226414A1

An electrochemical apparatus, includes a packaging bag accommodating an electrode assembly and an electrolyte. The electrode assembly includes a positive electrode plate, a negative electrode plate, and a separator. The positive electrode plate includes a positive electrode current collector having an aluminum foil and element silicon. A mass percentage of the element silicon in the positive electrode current collector is 0.03%-0.13%. The positive electrode current collector includes: a first surface and a second surface opposite to each other; and a single-sided region having a first portion. The second surface in the first portion is located on an outer surface of the electrode assembly. A positive electrode active material layer is provided on the first surface and an inactive material layer is provided on the second surface respectively, in the single-sided region. The inactive material layer includes an inactive material including an inorganic oxide and/or an elemental nonmetal.

ALLOY ELECTROLYTIC FOIL

Resumen de: US2025226416A1

ObjectTo provide a metal foil having higher corrosion resistance, thinness, and folding endurance all together.Solving MeansAn alloy electrolytic foil made of an iron-and-nickel-base alloy and containing 30 to 500 ppm by weight of manganese in terms of content proportion, and having a thickness of 1.5 to 10.0 μm.

BATTERY MODULE

Resumen de: US2025226485A1

A battery module includes n stacked battery cells; and m resin separators inserted between the stacked adjacent battery cells, in which at least one of the m resin separators has a heater function capable of generating heat. n represents an integer of 2 or more, and m is represented by the following formula: m=n−1.

FLUID COLLECTOR, THERMAL MANAGEMENT ASSEMBLY, BATTERY, AND ELECTRIC APPARATUS

Resumen de: US2025226486A1

A fluid collector applied to a thermal management assembly of a battery 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.

BATTERY PACK

Resumen de: US2025226542A1

To obtain a small-sized busbar in which a portion overlapping a terminal part of a battery is flat while stress applied to a joining surface is mitigated. A battery pack 1 according to the present invention has: a battery group in which a plurality of unit batteries 2 having positive-electrode terminals 2a and negative-electrode terminals 2b are stacked, with the positive-electrode terminal 2a of one unit battery 2A among mutually adjacent unit batteries 2 and the negative-electrode terminal 2b of the other unit battery 2B being adjacent in the stacking direction; and a busbar 10 for joining the positive-electrode terminal 2a of the one unit battery 2A and the negative-electrode terminal 2b of the other unit battery 2B. The busbar 10 has a positive-electrode plate 100 joined to the positive-electrode terminal 2a of the one unit battery 2A, and the negative-electrode plate 200 joined to the negative-electrode terminal 2b of the other unit battery 2B. At least one of the positive-electrode plate 100 and the negative-electrode plate 200 has a step-form shape bent in a stepwise manner, the joining being carried out via the step-form portion.

SECONDARY BATTERY AND BATTERY PACK

Resumen de: US2025226492A1

Provided is a secondary battery that is superior in vibration resistance but not degraded in manufacturability. The secondary battery includes an electrode wound body and a battery can. The electrode wound body includes a positive electrode and a negative electrode that are stacked on each other with a separator interposed between the positive electrode and the negative electrode and are wound around a central axis The battery can has a circular columnar outer shape in which a height direction corresponds to a direction along the central axis. The battery can contains the electrode wound body. The battery can includes a container and a cover part. The container includes a lower end part and an upper end part. The lower end part is closed by a bottom part. The upper end part is positioned on a side opposite to the lower end part in the height direction and has an opening through which the electrode wound body is passable. The cover part closes the opening of the container. Where a flattening of the electrode wound body is a ratio of a maximum diameter of the electrode wound body to a minimum diameter of the electrode wound body, the flattening of at least a portion of an upper part of the electrode wound body is greater than the flattening of at least a portion of a lower part of the electrode wound body.

Liquid Electrolyte Composition Comprising a Salt, Electrochemical Cell Comprising the Electrolyte Composition, Salt, and Use of the Salt in the Electrochemical Cell

Resumen de: US2025226450A1

Liquid electrolyte compositions comprising a salt of the formula (I) which has an anionic complex comprising three bidentate ligands are provided. The complex comprises antimony as the central ion. Electrochemical cells comprising the liquid electrolyte composition are further provided. Salts of formula (I) are further provided.

ELECTRODE PLATE, BATTERY AND ELECTRICAL DEVICE

Resumen de: US2025226390A1

An electrode plate includes a current collector and a film layer comprising an active material and an adsorptive polymer disposed on at least one side of the current collector, wherein: the adsorptive polymer satisfies: 3≤m1/n≤35, in which n represent a mass of the adsorptive polymer, and m1 represents a mass of a first substance that is obtained by: adding the adsorptive polymer to a predetermined electrolytic solution at 45° C. to form a polymer system, allowing the polymer system to stand for 60 hours at 45° C. and for ≥24 hours at 25° C., and then filtering the polymer system through a 200-mesh screen to obtain the first substance; and the adsorptive polymer further satisfies: 1.00≤m2/n≤1.05, in which m2 represents a mass of a second substance, that is obtained by drying the first substance at 60° C. for ≥24 hours.

SILICON-CARBON MIXTURE, METHOD FOR PREPARING SAME, AND ANODE ACTIVE MATERIAL AND LITHIUM SECONDARY BATTERY COMPRISING SAME

Resumen de: US2025226387A1

The present invention relates to a silicon-carbon mixture, a method for preparing same, and a negative electrode active material and a lithium secondary battery comprising same. The silicon-carbon mixture includes two or more kinds of composites, comprises silicon particles, magnesium silicate, and carbon, and has a molar ratio of oxygen (O) atoms to silicon (Si) atoms (O/Si) that satisfies 0.06 to 0.90. Accordingly, when the silicon-carbon mixture is applied to a negative electrode active material, it is possible to simultaneously enhance the discharge capacity, initial efficiency, and capacity retention rate after cycles of a lithium secondary battery.

NEGATIVE ELECTRODE MATERIAL, SECONDARY BATTERY, AND ELECTRONIC DEVICE

Resumen de: US2025226413A1

A negative electrode material is provided. The negative electrode material comprises a carbon-based material. In a nitrogen adsorption-desorption test of the negative electrode material, 0.004 cm3/g≤S≤0.030 cm3/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 −5 mV is 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 Cap B, 10 mAh/g≤Cap A−Cap B≤20 mAh/g.

NEGATIVE ELECTRODE MATERIAL, SECONDARY BATTERY, AND ELECTRONIC DEVICE

Resumen de: US2025226411A1

A negative electrode material includes 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, and Ia/Ib>1.

Sulfide Coatings For Ultra-Stable Cathodes Of Lithium Batteries

Resumen de: US2025226393A1

A lithium-ion battery including a cathode having a sulfide coating thereon; such sulfides having different chemical compounds, including Li2S, Na2S, K2S, Rb2S, Cs2S, Fr2S, BeS, MgS, SrS, BaS, RaS, Sc2S3, Y2S3, TiS2, ZrS2, HfS2, V2S5, Nb2S5, Ta2S5, CrS2, MoS2, WS2, MnS, MnS2, TcS2, ReS2, Fe2S3, Ru2S3, Os2S3, CoS, CoS2, Co3S4, Co9S8, RhS, RhS2, NiS, NiS2, PdS, PdS2, PtS, PtS2, CuS, Cu2S, Ag2S, AgS, Au2S, AuS, ZnS, CdS, HgS, B2S3, Al2S3, Ga2S3, In2S3, SiS, SiS2, GeS, GeS2, SnS, SnS2, PbS, PbS2, P2S5, As2S5, Sb2S5, Bi2S5, their compounds, and a method for making the same. The cathode can be LiNixMnyCozO2 (NMCs, x+y +z=1), LiMn2O4 (LMO), olivine LiFePO4 (LFP), LiCoO2 (LCO), LiNi0.8Co0.05Al0.05O2 (NCA), layered Li-rich Mn-based cathodes with the chemical formular of xLi2MnO3# (1−x) LiTMO2 (TM=Ni, Mn, Co, etc.), and a method for making the same.

BATTERY CONFIGURATIONS HAVING THROUGH-PACK FASTENERS

Resumen de: US2025226537A1

Energy storage devices, battery cells, and batteries of the present technology may include a first circuit board defining a plurality of apertures through the first circuit board. The batteries may include a battery stack overlying the first circuit board and electrically coupled with the first circuit board. The battery stack may include a plurality of battery cells. The battery stack may define a plurality of apertures axially aligned with a corresponding aperture through the first circuit board. The batteries may include a second circuit board that defines a plurality of apertures through the second circuit board. The batteries may include a plurality of fasteners, each fastener extending through a separate channel of the plurality of channels. The batteries may include a plurality of conductive extensions electrically coupling each battery cell of the battery stack with one or more fasteners of the plurality of fasteners.

SEPARATOR, BATTERY, AND ELECTRIC DEVICE

Resumen de: US2025226531A1

A separator has a positive electrode end and a negative electrode end in a thickness direction of the separator. The positive electrode end is provided with a plurality of first openings, the negative electrode end is provided with a plurality of second openings, and an aperture of the first opening is larger than an aperture of the second opening.

HOUSING COMPONENT, BATTERY CELL, BATTERY, AND ELECTRIC DEVICE

Resumen de: US2025226522A1

A housing component includes a first surface and a second surface, wherein the first surface and the second surface are oppositely arranged along a first direction. The housing component is provided with a first groove portion recessed from the first surface in a direction proximate to the second surface. The housing component forms a weak region at the bottom of the first groove portion, and the weak region is configured to be damaged when the battery cell releases internal pressure. Along the first direction, a protrusion protruding from the second surface is arranged on a side of the weak region away from the first groove portion.

POLYACRYLATE ELECTROLYTES FOR BATTERIES THAT CYCLE LITHIUM IONS AND BATTERIES INCLUDING THE SAME

Resumen de: US2025226447A1

An electrolyte for a battery that cycles lithium ions includes a polyacrylate and a liquid electrolyte immobilized in the polyacrylate. The polyacrylate includes acrylate monomers covalently bonded to one another. The liquid electrolyte includes a lithium salt in an organic solvent.

BATTERY

Resumen de: US2025226519A1

A battery including a safety valve (cleavage valve) having relatively high durability and capable of efficiently discharging gas inside the battery when cleaving is provided. The battery includes a charge/discharge body, an exterior body in which the charge/discharge body is housed, and the safety valve (the cleavage valve) provided at the exterior body and configured to open from inside the exterior body to outside when pressure of inside of the exterior body becomes equal to or larger than a predetermined value. An annular edge section of the cleavage valve, which is continuous to the exterior body includes a first edge section formed in an arc shape and a second edge section formed with a radius larger than a radius of the first edge section or formed in a linear shape.

ANODE MATERIAL AND BATTERY

Resumen de: US2025226389A1

Anode material and a battery are provided. The anode material includes a carbon matrix and silicon material. The silicon material is dispersed in the carbon matrix. The anode material is tested with Raman spectroscopy. The anode material has a first characteristic peak at 520±10 cm−1. The peak intensity of the first characteristic peak is IA. There is a second characteristic peak at 960±10 cm−1, the peak intensity of the second characteristic peak being IB. There is a third characteristic peak at 480±10 cm−1, the peak intensity of the third characteristic peak being IC. The following relationships exist between IA, IB and IC: 0.3≤IA/(IB+IC)≤0.6; and the anode material satisfies: α≤10%.

NEGATIVE ELECTRODE MATERIAL, SECONDARY BATTERY, AND ELECTRONIC DEVICE

Resumen de: US2025226412A1

A negative electrode material, 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.

ANODE MATERIAL AND BATTERY

Resumen de: US2025226408A1

The present disclosure provides an anode material and a battery. The anode material includes graphite, an interior and/or a surface of the graphite has pores, the anode material has an oil absorption value of O mL/100 g, a pore volume of V cm3/kg, a specific surface area of S m2/g, and a powder porosity of Φ%, where 50≤O*V*S≤391, and 40≤Φ≤58. According to the anode material and the battery provided by the present disclosure, a reaction space capable of performing an effective lithium ion de-intercalation in the anode material is relatively sufficient, improving the high-rate charging-discharging performance of the graphite anode material.

NEGATIVE ELECTRODE PLATE AND PREPARATION METHOD THEREOF, BATTERY CELL, BATTERY, AND ELECTRIC APPARATUS

Resumen de: US2025226386A1

A 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.

SURFACE-MODIFIED ELECTRODES, PREPARATION METHODS AND ELECTROCHEMICAL USES

Resumen de: US2025226392A1

This technology concerns modifying the surface of an electrode film with a succession of thin layers, for example, each being of 15 microns or less, where the first thin layer comprises an inorganic compound (such as a ceramic) in a solvating polymer, the inorganic compound being present in the first thin layer in an “inorganic compound:solvating polymer” weight ratio in the first thin layer is in the range of from about 1:20 to about 20:1. Electrochemical cells comprising the modified electrodes are also described as well accumulators comprising them.

Pouch-Shaped Battery Cell and Battery Module Including the Same

Resumen de: US2025226489A1

A pouch-shaped battery cell includes a pouch case having a receiving space, an electrode assembly received in the pouch case. The electrode assembly has a pair of electrode tabs provided at one side or opposite sides thereof, and a pair of electrode leads connected to the pair of electrode tabs. The pair of electrode leads protrude out of the pouch case. A sealed portion of the pouch-shaped battery case includes a wing portion, a terrace portion, and a reinforcement portion. The wing portion extends along the length direction of the pouch case, the terrace portion extends along the width direction of the pouch case, and the reinforcement portion extends outwardly from the terrace portion. The reinforcement portion has a predetermined shape and area for inhibiting or delaying gas venting. A method of manufacturing the same is also provided.

BATTERY PACK AND VEHICLE INCLUDING THE SAME

Resumen de: US2025226484A1

A battery pack according to an embodiment of the present disclosure includes: a plurality of batteries; a pack tray having an internal space accommodating the plurality of batteries and an opening communicating with the internal space; a pack lid coupled to the pack tray to cover the opening; and a heat dissipation structure disposed between the plurality of batteries and the pack lid, wherein the heat dissipation structure includes a first contact portion in thermal contact with at least one of the plurality of batteries; and a second contact portion that is spaced apart from the first contact portion at a predetermined distance and is in thermal contact with the pack lid.

ELECTROLYTE COMPOSITIONS

Resumen de: US2025226448A1

The invention relates to a non-aqueous electrolyte composition comprising one or more sodium-containing salts and a solvent system which comprises a first component which comprises one or more glyme-based solvents and a second component which comprises additives. The invention further relates to an anode-free sodium cell comprising said non-aqueous electrolyte compositions.

SEPARATOR FOR NON-AQUEOUS SECONDARY BATTERY AND NON-AQUEOUS SECONDARY BATTERY

Resumen de: US2025226528A1

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 nonionic surfactant having a cloud point of from 30° C. to 85° C. and a molecular weight of from 200 to 1,500.

ELECTRIC POWER CONVERSION DEVICE AND PROGRAM

Resumen de: US2025226481A1

A power conversion apparatus includes: an upper arm switch and a lower arm switch that are connected in series; a first capacitor electrically connected in parallel to the upper arm switch and the lower arm switch; a coil of which a first end side is electrically connected to a connection point between the upper arm switch and the lower arm switch; a second capacitor; a high-potential-side electrical path electrically connected to the upper arm switch; a low-potential-side electrical path electrically connected to the lower arm switch; and a control unit that performs switching of the upper arm switch and the lower arm switch. One of the high-potential-side electrical path and the low-potential-side electrical path and a second end side of the coil are electrically connected via the second capacitor. The other thereof and the second end side of the coil are electrically connected via a power storage unit.

POSITIVE ELECTRODE ACTIVE MATERIALS, PREPARATION METHODS THEREOF, AND RECHARGEABLE LITHIUM BATTERIES

Resumen de: US2025226407A1

A method of preparing a positive electrode active material, and a rechargeable lithium battery including a positive electrode active material prepared therefrom are provided, the method including adding lithium hydroxide, nickel sulfate, cobalt sulfate, and ammonium carbonate to an aqueous solvent and mixing them to prepare a raw material mixture, wet-pulverizing the raw material mixture, spray-drying the pulverized material to obtain a positive electrode active material precursor mixture, and subjecting the positive electrode active material precursor mixture to heat treatment to obtain a positive electrode active material in a form of a single particle and including lithium nickel-cobalt-based composite oxide.

ADDITIVES FOR POSITIVE ELECTRODES, PREPARATION METHODS THEREOF, POSITIVE ELECTRODES, AND RECHARGEABLE LITHIUM BATTERIES

Resumen de: US2025226406A1

Disclosed are an additive for a positive electrode, a preparation method thereof, and a positive electrode and a rechargeable lithium battery including the additive, the additive including lithium iron oxide particle; and a coating layer located on the surface of the lithium iron oxide particles and including metal oxide particles including a metal having an oxidation number of 4 or higher.

HIGH NICKEL CATHODE MATERIALS FOR BATTERY PACKS

Resumen de: US2025226404A1

Exemplary lithium-ion batteries comprise a cathode, an anode, and a non-aqueous electrolyte. Exemplary cathodes comprise a mixed metal oxide active material of formula:LiNixM′(1−x)O2wherein M′ is at least one metal element, and 0.60x≤0.999. Exemplary anodes comprise an active material, the active material comprising carbon.

NEGATIVE ELECTRODE MATERIAL FOR LITHIUM ION SECONDARY BATTERY, NEGATIVE ELECTRODE FOR LITHIUM ION SECONDARY BATTERY, AND LITHIUM ION SECONDARY BATTERY

Resumen de: US2025226391A1

There is provided a negative electrode material for a lithium ion secondary battery according to a first aspect includes composite particles in which amorphous carbonaceous particles and amorphous silicon particles are complexed. An average primary particle diameter of the silicon particles is 1 nm or more and 50 nm or less. The composite particles include a first composite particle having a silicon content of 0.5% by weight or more and 5% by weight or less, and a second composite particle having a silicon content of 60% by weight or more and 70% by weight or less.

LITHIUM METAL INTERCALATION IN A BATTERY CELL

Resumen de: US2025226382A1

A small format lithium-ion battery cell pre-lithiation assembly includes an enclosure having a first portion corresponding to a first battery cell terminal and a second portion corresponding to a second battery cell terminal. The assembly also includes an electrical insulator contacting the first portion and the second portion, a first lithium metal foil disposed in the enclosure and abutting the first portion, and a second lithium metal foil disposed in the enclosure and abutting the second portion. The assembly also includes an electrode assembly disposed in the enclosure between the first lithium metal foil and the second lithium metal foil.

POSITIVE ELECTRODE ACTIVE MATERIAL FOR NONAQUEOUS ELECTROLYTE SECONDARY BATTERIES

Resumen de: US2025226403A1

A positive electrode active material for nonaqueous electrolyte secondary batteries according to the present invention is characterized by being a composite oxide which is represented by general formula LixTMtmNMyO2-fFf and has a crystal structure that belongs to the space group Fm-3m. In the general formula, TM represents a transition metal; M represents a non-transition metal; x, tm, y and f satisfy 1.75≤x+tm+y≤2 and 0

ELECTRODE ASSEMBLY, BATTERY CELL, BATTERY, AND ELECTRICAL DEVICE

Resumen de: US2025226458A1

Some embodiments of this application provide an electrode assembly, a battery cell, a battery, and an electrical device. The electrode assembly includes a positive electrode, a negative electrode, and a solid electrolyte. The positive electrode contains a lithium supplement material capable of releasing oxygen during first-cycle charging. The solid electrolyte contains a first additive. The first additive is a metal-organic framework compound with a porosity of 65% to 95%. The technical solutions put forward herein not only improve the cycle performance and energy density of the battery, but also improve the safety performance of the battery.

BATTERY PACK INCLUDING FIRE SUPPRESSION MEANS

Resumen de: US2025226502A1

A battery pack includes a means configured to, when an abnormal phenomenon, such as fire outbreak or heat generation, occurs in a battery cell, prevent fire or heat from propagating to another battery cell adjacent thereto. The battery pack includes a plurality of battery cells, a case configured to receive the plurality of battery cells, an energy discharging means configured to discharge energy of the battery pack when the abnormal phenomenon occurs, and a fire extinguishing means configured to discharge aerosol at an operating temperature or higher in order to extinguish flames generated in the battery pack.

CYLINDRICAL BATTERY AND ASSEMBLY PROCESS THEREOF

Resumen de: US2025226455A1

A cylindrical battery includes a case assembly, a polar pillar is provided under a case of the case assembly; a second current collector, a jelly roll, a first current collector, and a cover plate are provided sequentially in the case from bottom to top; tabs at two ends of the jelly roll are fixedly connected to the first current collector and the second current collector, respectively; the second current collector and the case are insulated by an insulating element; a protrusion is formed in a circumferential direction of the insulating element; a height of the protrusion is identical to a height of the polar pillar; the cover plate is fixedly provided on the first current collector; the cover plate and the case are sealed by a sealing ring; when a liquid injection hole is formed in the cover plate or in the polar pillar.

BATTERY, BATTERY PACK, AND ELECTRONIC DEVICE

Resumen de: US2025226488A1

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.

ELECTROCHEMICAL DEVICE AND ELECTRONIC DEVICE

Resumen de: US2025226446A1

An electrochemical device of this application includes a positive electrode, a negative electrode, and an electrolyte, where the positive electrode includes a positive electrode active material, the positive electrode active material includes element A, and element A is selected from at least one of La, Y, or Nb; based on a mass of the positive electrode active material, a mass percentage of element A is x %; the electrolyte includes a compound represented by formula (I); and based on a mass of the electrolyte, a mass percentage of the compound represented by formula (I) is a %.

NEGATIVE ELECTRODE MATERIAL, SECONDARY BATTERY, AND ELECTRONIC APPARATUS

Resumen de: US2025226409A1

A negative electrode material includes 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 cm3/g≤S1≤0.001 cm3/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 cm3/g≤S1≤0.0025 cm3/g. S represents an adsorption volume of pores with a pore size less than or equal to 30 nm in the negative electrode material.

NEGATIVE ELECTRODE MATERIAL, SECONDARY BATTERY, AND ELECTRONIC APPARATUS

Resumen de: US2025226410A1

A negative electrode material including a carbon-based material. In a thermogravimetric test of the negative electrode material, 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.

SOLID-STATE BATTERIES WITH ALUMINUM-BASED ANODES

Resumen de: US2025226402A1

Described herein are solid-state electrochemical cells incorporating a solid-state electrolyte and aluminum as an anode active material. The use of aluminum as an anode active material can drive an increase in energy density and specific energy as compared to cells using conventional lithium-ion anode materials (e.g., graphite). Pairing an aluminum anode with a solid-state electrolyte can further provide for improved safety in secondary cells as compared to cells using lithium metal anodes for less complex manufacturing compared to cells using liquid electrolytes or wet processed anode materials.

IRON POWDER, IRON ELECTRODE, IRON BATTERY, AND METHOD OF MANUFACTURE THEREOF

Resumen de: US2025226401A1

An electrode, including a first iron material and a second iron material. The first iron material is a first reduced iron and the second iron material is different from the first iron material. Also provided is an electrochemical cell comprising an electrode including a first iron material and a second iron material. Further provided is a method of making an electrode.

ANODE ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERY AND LITHIUM SECONDARY BATTERY INCLUDING THE SAME

Resumen de: US2025226398A1

An anode active material for a lithium secondary battery includes a silicon-based active material particle doped with a metal element and including pores. A porosity of the silicon-based active material particle is in a range from 0.4% to 3.5%. A lithium secondary battery includes the anode and a cathode facing the anode.

BATTERY ASSEMBLY

Resumen de: US2025226526A1

A battery assembly of the present disclosure includes: a plurality of battery cells, which each include a main body portion storing and supplying electric energy and a tab portion protruding outwardly from the main body portion and electrically connecting the main body portion and the outside and are stacked along one direction; an accommodating housing accommodating the plurality of battery cells therein; a busbar assembly positioned inside the accommodating housing and including a through-hole formed on one surface thereof, wherein the tab portion is inserted into the through-hole to electrically connect at least a part of the plurality of battery cells to each other; and a pillar-shaped flame retardant portion positioned in an insertion space formed between the main body portion and the busbar assembly by tab portions of two adjacent battery cells among the plurality of battery cells.

REAL-TIME TEMPERATURE MEASUREMENT METHOD FOR TRACTION BATTERY PACK

Resumen de: US2025226480A1

Provided in the present invention is a real-time temperature measurement method for a traction battery pack. The temperature measurement and thermal field analysis of a traction battery pack are realized. A temperature field of a traction battery pack is simulated and emulated by using current and voltage information of the traction battery pack and thermodynamic parameters of a material, and the temperature field is corrected by using discrete actually-measured temperature data and by means of a deep neural network and a Kalman filter, such that an established temperature field model can more truly reflect the actual temperature field distribution of the battery pack.

ELECTROCHEMICAL DEVICE AND ELECTRONIC DEVICE

Resumen de: US2025226445A1

An electrochemical device includes a negative electrode, a positive electrode, a separator, and an electrolyte. The positive electrode includes a positive electrode active material containing a doping element, where the doping element includes one or more selected from the group consisting of aluminum, magnesium, zirconium, titanium, and lanthanum; and based on a mass of the positive electrode active material, a mass percentage of the doping element is b %, where 0.01≤b≤3. The electrolyte includes a polynitrile additive.

APPARATUS AND METHOD FOR BATTERY COOLING CONTROL

Resumen de: US2025226479A1

The present disclosure relates to an apparatus and method for battery cooling control. An apparatus for battery cooling control according to some embodiments includes a cooling water control apparatus configured to control the supply of cooling water for cooling a battery system, and a control apparatus configured to obtain the state of charge and charge/discharge rate of the battery system, determine a heating value of the battery system according to the state of charge and the charge/discharge rate, and control the cooling water control apparatus to control the supply of the cooling water according to the heating value.

LITHIUM-ION BATTERY INCLUDING DOPED POSITIVE ELECTRODE ACTIVE MATERIAL

Resumen de: US2025226444A1

A lithium-ion battery includes a positive electrode and an electrolyte. A positive electrode active material included in the positive electrode includes a doping element. The doping element includes at least one selected from 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, and a percentage of the doping element satisfies 0.01%≤W1%≤0.5%. The electrolyte includes an oligomer according to formula (I), and a percentage of the oligomer satisfies 0.1%≤W2≤10% s.

ELECTRODE MATERIAL, ELECTRODE MATERIAL PREPARATION METHOD, ELECTRODE MATERIAL PRECURSOR, AND ELECTRODE MATERIAL PRECURSOR PREPARATION METHOD

Resumen de: US2025226400A1

Embodiments of this application provide an electrode material. The electrode material includes a secondary particle formed by aggregating a plurality of primary particles, the secondary particle includes an inner layer and an outer layer that wraps an outer side of the inner layer, and an average particle size of primary particles at the inner layer is greater than an average particle size of primary particles at the outer layer. The electrode material can homogenize stress distribution of the secondary particle in a charging and discharging process, to suppress a grain boundary cracking phenomenon to some extent, improve cycle stability of the material, and improve battery performance. Embodiments of this application further provide an electrode material preparation method, an electrode material precursor, and an electrode material precursor preparation method.

COMPOSITE CATHODE ACTIVE MATERIAL, AND CATHODE AND LITHIUM SECONDARY BATTERY CONTAINING THE COMPOSITE CATHODE ACTIVE MATERIAL

Resumen de: US2025226397A1

A composite cathode active material including a plurality of particles, the particles including a lithium transition metal oxide, and a coating layer arranged on at least a portion of the surface of the particles. The coating layer includes a linear carbon-based material and a solid electrolyte, and a length of the linear carbon-based material is 1,000 μm or more.

CATHODE FOR LITHIUM SECONDARY BATTERY AND LITHIUM SECONDARY BATTERY INCLUDING THE SAME

Resumen de: US2025226394A1

Cathodes and secondary batteries including the cathodes are disclosed. In an embodiment, a cathode includes: a cathode current collector, a first cathode active material disposed on at least one surface of the cathode current collector, and including a first cathode active material; and a second cathode active material layer disposed on the first cathode active material layer, and including a second cathode active material different from the first cathode active material, wherein a Raman peak intensity ratio of the first cathode active material layer is smaller than a Raman peak intensity ratio of the second cathode active material layer.

METACAPACITORS AND POWER-ELECTRONIC CONVERTERS FOR POWER-ELECTRONIC SYSTEMS

Resumen de: US2025226755A1

An electrical-energy storage device for storing electrical energy for use as a power source includes: a conductive or semi-conductive first metasurface layer; a conductive or semi-conductive second metasurface layer; and a dielectric layer sandwiched between the first and the second metasurface layers for electrically insulating the first metasurface layer from the second metasurface layer.

APPARATUS AND METHOD FOR MANAGING BATTERY

Resumen de: WO2025147152A1

According to an embodiment of the present invention, the battery management apparatus comprises: a profile acquisition unit configured to acquire a battery profile indicating the correspondence between the voltage and capacity of a battery; a profile determination unit configured to determine a positive electrode profile and a negative electrode profile of the battery by adjusting a preconfigured reference positive electrode profile and a preconfigured reference negative electrode profile to correspond to the battery profile; and a control unit configured to calculate a lithium loss rate of the battery on the basis of the positive electrode profile of the battery, calculate a negative electrode side reaction rate of the battery on the basis of the battery profile, and calculate a positive electrode side reaction rate of the battery on the basis of the lithium loss rate and the negative electrode side reaction rate.

SOLID ELECTROLYTE, AND SOLID ELECTROLYTE MEMBRANE AND ALL-SOLID-STATE RECHARGEABLE BATTERY WHICH COMPRISE SAME

Resumen de: WO2025146872A1

The present invention relates to a solid electrolyte, and a solid electrolyte membrane and an all-solid-state rechargeable battery which comprise same, the solid electrolyte comprising argyrodite-type sulfide-based solid electrolyte particles and a lithium salt located on the surfaces of the particles, wherein the lithium salt has F and P-O functional groups.

ANODE FOR LITHIUM METAL BATTERY, ELECTRODE ASSEMBLY FOR LITHIUM METAL BATTERY, AND LITHIUM METAL BATTERY

Resumen de: WO2025147150A1

The present application may provide an anode for a lithium metal battery and an electrode assembly for a lithium metal battery, in which, in a battery system using lithium metal as the anode, the anode includes a main body portion and an anode tab extending from one side edge of the main body portion, connected to a metal lead, and including lithium metal, wherein the anode tab is configured such that the width (W1) of the end portion thereof and the width (W2) of a connection portion connecting the end portion and the main body portion are different, thereby preventing the problem of the tab deviating from the range of the lead and spreading when the anode tab and the lead are welded, thus enabling problems occurring during sealing and adverse effects on battery performance to be minimized.

SIMULATION SYSTEM AND OPERATION METHOD OF SIMULATION SYSTEM

Resumen de: WO2025147119A1

According to some embodiments, a simulation system includes: an interface panel configured to receive a manipulation input from an operator; a main simulator configured to load training content for reproducing processes of manufacturing a cylindrical battery through electrode notching on the basis of the manipulation input and provide the training content to the operator through interaction with the operator; and a display configured to display a detailed image of the processes on the basis of the characteristics of the training content.

SECONDARY BATTERY MANUFACTURING EQUIPMENT AND METHOD FOR MANUFACTURING SECONDARY BATTERY

Resumen de: WO2025147113A1

According to exemplary embodiments, a secondary battery manufacturing equipment is provided. The equipment comprises: an unwinder configured to unwind an electrode sheet from a first electrode roll; a rewinder configured to wind the electrode sheet onto a second electrode roll; a first die coater configured to form a first coating layer of the electrode sheet; a second die coater configured to form a second coating layer of the electrode sheet; and laser beam irradiators configured to partially etch the second coating layer.

SECONDARY BATTERY AND PREPARATION METHOD THEREFOR, AND ELECTRIC DEVICE

Resumen de: WO2025145690A1

A secondary battery and a preparation method therefor, and an electric device. The secondary battery comprises a positive electrode sheet, a negative electrode sheet, a gel electrolyte, and a solid electrolyte membrane which is of a through hole-free structure; the solid electrolyte membrane is located between the positive electrode sheet and the negative electrode sheet; the positive electrode sheet comprises a positive electrode active material layer; the gel electrolyte is at least located between the positive electrode active material layer and the solid electrolyte membrane and in pores of the positive electrode active material layer; and the gel electrolyte comprises a nitrile additive. In this way, the high-temperature storage performance and the cycle performance of the secondary battery are effectively improved.

SECONDARY BATTERY AND PREPARATION METHOD THEREFOR, AND ELECTRIC DEVICE

Resumen de: WO2025145692A1

A secondary battery and a preparation method therefor, and an electric device. The secondary battery comprises a positive electrode sheet, a negative electrode sheet, an electrolyte solution, a gel electrolyte, and a separator that is arranged between the positive electrode sheet and the negative electrode sheet, wherein the negative electrode sheet comprises a negative electrode active material layer; the gel electrolyte is at least located between the negative electrode active material layer and the separator and within pores in both the negative electrode active material layer and the separator; and the electrolyte solution contains a nitrile additive. Therefore, the high-temperature storage performance and cycling performance of a secondary battery are effectively improved.

THERMAL MANAGEMENT ASSEMBLY, BATTERY BOX, BATTERY AND ELECTRIC DEVICE

Resumen de: WO2025145662A1

Provided in the embodiments of the present disclosure are a thermal management assembly, a battery box, a battery and an electric device. The thermal management assembly comprises a flow channel plate, an energy absorption member and a plurality of current collectors, wherein the flow channel plate is configured to convey fluid to perform heat exchange with battery cells; the current collectors are connected to the flow channel plate; and the energy absorption member is arranged on the sides of the current collectors away from the flow channel plate, and the energy absorption member comprises a force bearing portion and a deformation portion, the force bearing portion being located at the end of the deformation portion away from the current collectors, and the rigidity of the deformation portion being smaller than that of the force bearing portion.

BATTERY MODULE AND BATTERY PACK

Resumen de: WO2025145516A1

The present application provides a battery module, comprising a battery cell and a heat dissipation pressure relief piece. The heat dissipation pressure relief piece has a liquid cooling separation part and a smoke exhaust pressure relief part; the smoke exhaust pressure relief part is provided with a pressure relief channel and an exhaust port leading to the pressure relief channel, the liquid cooling separation part being located on a side of the pressure relief channel and vertically connected to the smoke exhaust pressure relief part; an explosion-proof valve of the battery cell is arranged corresponding to the exhaust port, and the battery cell exchanges heat with the liquid cooling separation part. In addition, further provided is a battery pack using the battery module.

Cylindrical Battery

Resumen de: US2025226490A1

The present disclosure relates to a cylindrical battery, specifically to a cylindrical battery having an electrode assembly and a battery case including an electrode assembly accommodation part, and more specifically to a cylindrical secondary battery having a jelly-roll type electrode assembly with an outer circumferential tab structure and a battery case including a protrusion part provided on at least a portion of an electrode assembly accommodation part.

EXHAUST ASSEMBLY, BATTERY PACK, AND ELECTRICAL DEVICE

Resumen de: US2025226524A1

This application provides an exhaust assembly, a battery pack, and an electrical device. The exhaust assembly includes an exhaust portion, a connecting portion, and a sealing structure. The exhaust portion is configured to receive emissions from a battery cell. The exhaust assembly is connected to a box of the battery pack by the connecting portion. The sealing structure is disposed at a junction between the connecting portion and the box. In this application, high-temperature and high-pressure gases and conductive particles expelled from a thermally runaway battery cell can enter the exhaust portion and be directionally expelled out of the battery pack through the exhaust portion. The connecting portion may be connected to the box of the battery pack by a connecting piece such as a bolt. The sealing structure can seal a gap at a junction between the connecting portion and the box.

BATTERY ASSEMBLY AND ASSEMBLING METHOD OF THE SAME

Resumen de: US2025226527A1

Embodiments of the present disclosure relate to a battery assembly including a plurality of battery cells stacked and arranged in one direction, an accommodating case accommodating the plurality of battery cells, an insertion space formed between the plurality of battery cells and the accommodating case, and an insertion member including a first region tapered toward one end and positioned in the insertion space, and an assembling method of the same.

Battery Cell, Energy Store and Method for Venting a Battery Cell

Resumen de: US2025226518A1

A battery cell having a housing, which has a cover surface, a bottom surface and at least one lateral surface, and an auxiliary device which is at least partially arranged on the lateral surface and the bottom surface, are described. The housing has a recess at the bottom surface, and the auxiliary device completely covers the recess. Also described are an energy store and a method for venting a battery cell.

ENERGY STORAGE APPARATUS

Resumen de: US2025226501A1

An energy storage apparatus, belonging to the technical field of energy storage apparatuses is described. The energy storage apparatus comprises an energy storage box body and a plurality of batteries, the energy storage box body having a battery compartment, and the battery compartment having an opening in a first direction; the plurality of batteries being provided within the battery compartment, and one battery being arranged in the battery compartment along the first direction. The energy storage apparatus according to the embodiments of the present application has high energy density.

BATTERY PACK

Resumen de: US2025226556A1

A battery pack includes a battery module including battery cells, and busbars electrically connecting respective ones of the battery cells, and a circuit board connected to the battery module, and including a first part including wires, and extending in a length direction of the battery module, second parts extending from the first part in a direction crossing the first part, and including a circuit pattern including a fuse pattern configured to be opened based on an abnormal current, and a non-fuse pattern configured to maintain electrical connection with one or more of the busbars, and third parts respectively extending from the second parts, and connected to the busbars.

ELECTRODE ACTIVE MATERIAL FOR SECONDARY BATTERY, METHOD FOR PRODUCING SAME, AND ALKALINE MANGANESE SECONDARY BATTERY

Resumen de: WO2025146801A1

The present disclosure provides: an active material for a manganese oxide-zinc secondary battery, with which it is possible to achieve a manganese oxide-zinc secondary battery that is improved in terms of both the cycle characteristics and the utilization rate of an electrode active material in comparison to conventional active materials for a zinc secondary battery; and a method for producing the active material for a manganese oxide-zinc secondary battery. An electrode active material for a secondary battery according to the present disclosure is characterized by including a manganese oxide and a conductive assistant, and is also characterized in that the conductive assistant is present in at least a part of the manganese oxide surface, and the manganese/carbon area ratio of the conductive assistant is not less than 0.30 but less than 1.0.

COMPOSITE POLYMER ELECTROLYTE, METHOD FOR MANUFACTURING SAME, AND ALL-SOLID-STATE BATTERY COMPRISING SAME

Resumen de: WO2025147124A1

According to the present invention, a composite polymer electrolyte having excellent ionic conductivity as well as mechanical strength, and a method for manufacturing same can be provided. In addition, according to the present invention, the composite polymer electrolyte is particularly applied to an all-solid-state battery using lithium metal or a lithium alloy as a negative electrode, thereby suppressing the generation of lithium dendrites and improving lifespan characteristics.

APPARATUS AND METHOD FOR MANAGING BATTERY

Resumen de: WO2025147100A1

An apparatus for managing a battery according to one embodiment of the present invention comprises: a profile acquisition unit configured to acquire a differential profile indicating a correspondence relationship between a voltage and a differential capacity of the battery; and a control unit configured to determine a first point which is, in a preset target voltage section, a starting point of the target voltage section, a second point having the highest differential capacity, and a third point having the lowest differential capacity in a voltage section equal to or greater than the voltage of the second point, and diagnose the state of the battery according to the differential capacities of the first point, the second point, and the third point.

CYLINDRICAL SECONDARY BATTERY MANUFACTURING DEVICE AND MANUFACTURING METHOD

Resumen de: WO2025147093A1

The present invention relates to a cylindrical secondary battery manufacturing device and manufacturing method, and, to a cylindrical secondary battery manufacturing device and manufacturing method, which enable line balancing to be effectively performed in a cyclic manufacturing line. According to one embodiment of the present invention, the cylindrical secondary battery manufacturing device and manufacturing method can be provided, the device comprising: a plurality of sensors provided along a buffer line in order to calculate, by step, the loading level of carriers in the buffer line provided between preceding equipment and subsequent equipment; and a controller, which adjusts the process speed of the preceding equipment and the subsequent equipment on the basis of the stepwise loading level calculated through a combination of outputs of the plurality of sensors, so as to control to follow the entire target process speed by balancing the process speed of the preceding equipment and the subsequent equipment.

CELL FORMATION METHOD

Resumen de: WO2025145614A1

Provided in the present application is a cell formation method, comprising the following steps: dividing cells into a control sample cell and a cell to be tested; subjecting the control sample cell to electrolyte filling and standing, then performing formation with an injection port being in an open state, and on the basis of the amount of gas generated during the formation process of the control sample cell and the charging SOC of the control sample cell, constructing a gas production curve of formation; dividing the obtained curve into three consecutive segments, wherein the cumulative amount of gas generated during the formation process corresponding to a first segment of the curve accounts for 1% of the total gas amount of the formation process, the cumulative amount of gas generated during the formation process corresponding to a third segment of said curve accounts for 1% of the total gas amount of the formation process, the charging SOC of the cell corresponding to a connection point between the first segment of said curve and a second segment of said curve is taken as a gas production initial SOC, and the charging SOC of the cell corresponding to a connection point between the second segment of said curve and the third segment of said curve is taken as a gas production cutoff SOC; and on the basis of the gas production charging SOC and the gas production cutoff SOC, performing formation on the cell to be tested that has been subjected to electrolyte filling and standi

WELDING TESTING SYSTEM AND DEFECT DETECTION METHOD

Resumen de: WO2025145608A1

A welding testing system and a defect detection method. The welding testing system comprises a welding mechanism and a first testing mechanism (1); the welding mechanism is used for welding a casing and a top cover of a battery cell (01) together; the first testing mechanism (1) is arranged downstream of the welding mechanism; the first testing mechanism (1) comprises a support assembly (11), a planar imaging assembly (12), and a processing assembly; the planar imaging assembly (12) is mounted to the support assembly (11); the planar imaging assembly (12) is used for capturing a planar image at a welding pass; and the processing assembly is used for acquiring the planar image and determining, on the basis of the planar image, whether the welding pass is standard-compliant. The planar imaging assembly (12) comprises imaging units (121); each imaging unit (121) comprises a camera (1211) and a reflective mirror (123); the camera (1211) and the testing position of the first testing mechanism (1) are located on the same side of the reflective mirror (123); a lens of the camera (1211) faces the reflective mirror (123); and when the battery cell (01) is located at the testing position, the camera (1211) captures an image of the welding pass reflected by the reflective mirror (123).

STACKING DEVICE, STACKING SYSTEM, AND STACKING METHOD

Resumen de: WO2025145578A1

The present application provides a stacking device, a stacking system, and a stacking method. The stacking device comprises a separator unwinding mechanism and a stacking apparatus, and the separator unwinding mechanism is provided with an output part for outputting a separator. The stacking apparatus comprises a stacking platform for receiving the separator, the stacking platform has a first stacking position and a second stacking position in a first direction, the stacking platform is used for receiving a first electrode sheet at the first stacking position, and the stacking platform is used for receiving a second electrode sheet at the second stacking position. The polarities of the first electrode sheet and the second electrode sheet are opposite. The output part has a first output position and a second output position in the first direction, and the output part and the stacking platform can move in opposite directions. The output part is configured to switch between the second output position and the first output position when the stacking platform switches between the first stacking position and the second stacking position. The stacking device can adjust the relative position of the output part and the stacking platform more quickly, thereby reducing the movement time and stroke of the stacking platform, and improving the stacking efficiency.

RECHARGEABLE BATTERY MODULE

Resumen de: US2025226539A1

A rechargeable battery module includes a bus bar holder covering battery cells; a bus bar on the bus bar holder to electrically connect the battery cells; and a flexible printed circuit on the bus bar holder to transmit a signal that detects a voltage of the battery cell connected to the bus bar. The bus bar includes an extension portion protruding in one direction, and the flexible printed circuit includes a main body portion, a branch portion extending from the main body portion, and an expansion portion having an expanded area on the branch portion that is soldered to the extension portion.

SEPARATORS FOR THREE-DIMENSIONAL BATTERIES

Resumen de: US2025226532A1

An electrode structure for use in an energy storage device, the electrode structure comprising a population of electrodes, a population of counter-electrodes, and an electrically insulating material.

BATTERY PACK AND VEHICLE

Resumen de: US2025226499A1

A battery pack vehicle includes a tray, a battery core module, and a liquid cooling plate. The tray includes a tray bottom plate connected with tray side beams to form an accommodating space. The battery core module is disposed in the accommodating space and includes battery cores. Each battery core has a first explosion-proof valve. The liquid cooling plate is disposed on the tray bottom plate and between the battery core module and the tray bottom plate, and includes through holes extending through the liquid cooling plate. The battery core module is in contact with a first surface of the liquid cooling plate, and the first explosion-proof valves respectively corresponds to the through holes. The first channel disposed between a second surface of the liquid cooling plate and the tray bottom plate, and each tray side beam includes a second channel being in communication with the first channel.

TRIPOD SYSTEM

Resumen de: US2025226497A1

A tripod system includes a tripod having a center column, a plurality of legs coupled to the center column, a battery receptacle supported by the center column, and a head supported by the center column. The battery receptacle is configured to receive a battery pack such that the battery pack provides power to the tripod. The tripod system also includes a luminaire removably coupled to the head such that the luminaire is configured to be electrically powered by the battery pack through the tripod. The luminaire is removable from the head and configured to be coupled directly to the battery pack such that the battery pack is secured to the luminaire and provides power to the luminaire. The head is pivotally coupled to an end of the center column.

FIXING STRUCTURE OF ELECTRODE TERMINAL, AND BATTERY, BATTERY PACK AND VEHICLE INCLUDING THE SAME

Resumen de: US2025226552A1

A fixing structure of an electrode includes a battery housing having a bottom with a perforation hole; an electrode terminal fixed to the bottom; and a terminal gasket interposed between the electrode terminal and the bottom. The electrode terminal includes a neck portion inserted into the perforation hole; a head portion connected to one end of the neck portion and having a cross section larger than the cross section of the perforation hole and extending along one surface of the bottom; a protrusion connected to the other end of the neck portion and extending along an axial direction of the battery housing from the other surface of the bottom; a diameter-enlarged portion configured to extend in a centrifugal direction from the protrusion; and a front end surface at an axial end of the protrusion. The diameter-enlarged portion may be a fastening member at an outer circumference of the protrusion.

CYLINDRICAL SECONDARY BATTERY MANUFACTURING APPARATUS AND MANUFACTURING METHOD

Resumen de: WO2025147095A1

The present invention relates to a cylindrical secondary battery manufacturing apparatus and manufacturing method, and to a cylindrical secondary battery manufacturing apparatus in which line balancing may be effectively performed in a circulation manufacturing line. According to an embodiment of the present invention, a cylindrical secondary battery manufacturing apparatus and manufacturing method may be provided which enable automatic determination of the appropriate number of carriers circulating in the circulation manufacturing line through a master carrier, which is distinguished from a general carrier, and a sensor that senses the master carrier.

BATTERY MODULE WITH IMPROVED STABILITY

Resumen de: WO2025147055A1

The present invention relates to a structure of a battery module and a method for manufacturing same, the structure comprising: a cell stack in which a plurality of batteries each having a pair of electrode leads protruding upward are stacked in the width direction; a frame that is open on top and accommodates the cell stack; and an insulating resin filling at least a portion of an empty space between the cell stack and the frame.

RECHARGEABLE BATTERY AND METHOD FOR MANUFACTURING RECHARGEABLE BATTERY

Resumen de: WO2025147019A1

The present invention relates to a rechargeable battery that can be charged and discharged and a method for manufacturing the rechargeable battery that can be charged and discharged. A rechargeable battery according to one embodiment of the present invention may comprise: a plurality of electrode assemblies each having an electrode tab bundle; an intermediate electrode interposed between the plurality of electrode assemblies; and a case for accommodating the plurality of electrode assemblies and the intermediate electrode.

BATTERY ASSEMBLY AND BATTERY PACK COMPRISING SAME

Resumen de: WO2025147017A1

The technical concept of the present invention is to provide a battery pack comprising: a pack housing including a first support structure; and a battery assembly accommodated in the pack housing, wherein the battery assembly includes: a cell block including a plurality of battery cells stacked in a first direction; a frame including a first side cover and a second side cover spaced apart from each other in the first direction with the cell block therebetween; and a top cover that includes a central part, which is coupled to the frame so as to cover the cell block, and a first outer part, which protrudes from the first side cover to the outside, the first outer part being fastened to the first support structure. A first buffer space extending in the first direction is provided between the first side cover and the first outer part of the top cover.

BATTERY FIRE EXTINGUISHING DEVICE USING BATTERY TEMPERATURE SENSING

Resumen de: WO2025146972A1

The present invention relates to a battery fire extinguishing device using battery temperature sensing, the battery fire extinguishing device using battery temperature sensing comprising a battery control unit (10), a vacuum pump device (20), battery cells (51, 52, 53...61, 62, 63....71, 72, 73...), and a gas supply device (30), wherein: the battery control unit (10) is operated by receiving power from the outside or from a battery power supply unit and comprises a vacuum pump device control unit, a gas supply device control unit, a battery cell temperature sensing unit, and a battery cell pressure sensing unit; the battery cells (51, 52, 53,...61, 62, 63,...71, 72, 73...) each have a solenoid valve (51-1, 52-1, 53-1, 61-1, 62-1, 63-1, 71-1, 72-1, 73-1) connected to one side thereof; the solenoid valves are electrically connected to the vacuum pump device (20); the battery cells (51, 52, 53,...61, 62, 63,...71, 72, 73...) each have a check valve (51-2, 52-2, 53-2, 61-2, 62-2, 63-2, 71-2, 72-2, 73-2) connected to the other side thereof; and the check valves are electrically connected to the gas supply device (20).

BATTERY CELL, BATTERY, AND ELECTRICAL APPARATUS

Resumen de: WO2025145577A1

A battery cell (10), a battery (100), and an electrical apparatus. The electrical apparatus comprises the battery cell (10) or the battery (100); the battery (100) comprises the battery cell (10); the battery cell (10) comprises an electrode assembly (11), a casing assembly (12), a first pressure relief mechanism (16), an electrode terminal (13), an adapter piece (14), and a limiting structure (15); the casing assembly (12) is provided with a first component (121) and a second component (122) that are arranged opposite to each other; the electrode assembly (11) is arranged between the first component (121) and the second component (122), and the first component (121) and the electrode assembly (11) are spaced apart to form a first exhaust space (101); the first pressure relief mechanism (16) is arranged on the first component (121) and is communicated with the first exhaust space (101); the electrode terminal (13) is arranged on the second component (122); the adapter piece (14) is conductively connected to the electrode assembly (11) and the electrode terminal (13); the limiting structure (15) is connected to the second component (122) and is used for limiting the adapter piece (14) in a direction away from the first component (121). The adapter piece (14) is limited by the limiting structure (15) in the direction away from the first component (121), so that the problem that the electrode assembly (11) collapses towards the first component (121) can be mitigated, thereby imp

ELECTROLYTE OF LITHIUM METAL BATTERY, LITHIUM METAL BATTERY, BATTERY, AND ELECTRICAL APPARATUS

Resumen de: WO2025145565A1

An electrolyte of a lithium metal battery, a lithium metal battery, a battery, and an electrical apparatus. The electrolyte of the lithium metal battery comprises a main solvent, a diluent, and a lithium salt; the molar concentration of the lithium salt is 1 mol/L to 4 mol/L, and the viscosity of the electrolyte is less than or equal to 5.5 mPa⋅s. The cycle performance of the lithium metal battery can be improved.

SECONDARY BATTERY AND MANUFACTURING METHOD THEREFOR, AND ELECTRIC DEVICE

Resumen de: WO2025145370A1

The present invention relates to a secondary battery and a manufacturing method therefor, and an electric device. The secondary battery comprises a negative electrode sheet and a gel electrolyte; the negative electrode sheet contains a negative electrode active material; the negative electrode active material comprises a carbon-containing material; the gel electrolyte comprises a polymer, an organic solvent, and an electrolyte salt; the organic solvent comprises one or more of an ether-based organic solvent, a sulfone-based organic solvent, a phosphate-based organic solvent, and a carbonate-based organic solvent; the polymer comprises one or more of a carbon-oxygen double bond and a carbon-oxygen single bond; and the mass ratio of the polymer in the gel electrolyte is 0.5%-38%.

COOLING MODULE AND BATTERY DISCONNECT DEVICE COMPRISING SAME

Resumen de: US2025226487A1

A cooling module is disclosed. A cooling module according to an aspect of the present disclosure comprises a heat dissipation part which is coupled to an external busbar and receives heat from the busbar, and a pipe part which is coupled to the heat dissipation part and inside which a heat transfer medium that receives the heat flows, wherein the heat dissipation part may comprise: a heat dissipation body formed to extend in one direction; a pipe coupling part which extends along the one direction inside the heat dissipation body and of which each end in the one direction is formed to be open so that the pipe part is coupled by penetrating therethrough; and a busbar coupling part which is positioned adjacent to the pipe coupling part and to which the busbar is coupled.

POWER SUPPLY INCLUDING A MANUAL SERVICE DISCONNECT (MSD) HAVING PYRO FUSE

Resumen de: US2025226554A1

A power supply includes a housing having a plurality of walls, a power component arranged in the housing, a first electrical connector connected to the power component, a second electrical connector connected to the power component, an electric circuit defined between the first electrical connector, the second electrical connector, and the power component, and a manual disconnect device (MSD) including a pyro fuse connected in the electric circuit, the MSD being provided on the housing and being configured to create an open in the electric circuit.

BATTERY MODULE AND BATTERY PACK

Resumen de: US2025226523A1

A battery module and a battery pack employing the battery module are provided. The battery module includes a cell and a heat-dissipation and pressure-relief component. The heat-dissipation and pressure-relief component is provided with a liquid-cooling partition and a smoke-exhaust and pressure-relief portion. The smoke-exhaust and pressure-relief portion is provided with a pressure-relief channel and an exhaust port communicating with the pressure-relief channel. The liquid-cooling partition is arranged at one side of the pressure-relief channel and is vertically connected to the smoke-exhaust and pressure-relief portion. An explosion-proof valve of the cell is arranged corresponding to the exhaust port, and the cell exchanges heat with the liquid-cooling partition.

PIPE CONNECTION STRUCTURE, THERMAL MANAGEMENT ASSEMBLY AND BATTERY PACK

Resumen de: US2025226483A1

A pipe connection structure includes a first pipe joint, a second pipe joint and a limiting structure; the second pipe joint and the first pipe joint are connected through insertion, an outer surface of the second pipe joint is provided with a first fitting structure, an end of the limiting structure is connected to the first pipe joint, and another end is provided with a second fitting structure; in a direction of the insertion, the second fitting structure and the first fitting structure are fitted to block each other, and the second fitting structure and the first fitting structure are fitted with a clearance.

ELECTROCHEMICAL APPARATUS AND ELECTRIC DEVICE

Resumen de: US2025226551A1

An 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.

BATTERY MODULE WITH IMPROVED STABILITY

Resumen de: WO2025147008A1

The present invention provides a battery module structure and a manufacturing method therefor, the structure comprising: a plurality of battery cells, each having a pair of electrode leads that protrude upward and being arranged in the width direction; a frame having an open upper side thereof and accommodating the plurality of battery cells; and an insulating resin filling at least a portion of the empty space between the plurality of battery cells and the frame.

JIG FOR PRESSURIZING POUCH-TYPE SECONDARY BATTERY AND METHOD FOR INSPECTING POUCH-TYPE SECONDARY BATTERY USING SAME

Resumen de: WO2025146987A1

The present invention relates to a jig for pressurizing a pouch-type secondary battery, and a method for inspecting a pouch-type secondary battery using same, wherein the jig for pressurizing a pouch-type secondary battery comprises: a first pressurizing unit including a first pressurizing plate provided such that a second side of a pouch-type secondary battery is settled; a second pressurizing unit provided so as to pressurize a first side of the pouch-type secondary battery, the second pressurizing unit including a second pressurizing plate provided with air holes formed such that a fifth side and a sixth side are in communication with each other; and an air injection unit provided so as to inject air onto the first side of the pouch-type secondary battery through the air holes.

FIRE-DETECTING SMOKE CONTROL APPARATUS FOR CHARGER/DISCHARGER, AND SMOKE CONTROL METHOD USING SAME

Resumen de: WO2025146988A1

The present invention relates to a fire-detecting smoke control apparatus for a charger/discharger, the apparatus comprising: a battery pack receiving space in which a battery pack is charged/discharged; a fire detector which is provided on one side of the battery pack receiving space; and a plurality of fans which draw or expel air into or from the battery pack receiving space, wherein when the fire detector detects a fire, some or all of the fans are switched to expelling air.

BATTERY PACK AND VEHICLE INCLUDING SAME

Resumen de: WO2025146977A1

The present invention relates to a battery pack comprising: a plurality of battery cells; and a pack case including a body frame, which is configured to accommodate the plurality of battery cells and has an open end formed on at least one side thereof, and a cover frame, which is provided at the open end of the body frame so as to be located on the side from which venting gas is discharged from the plurality of battery cells and has a cooling flow path formed in an inner space and configured so that a cooling medium flows.

BATTERY PACK AND VEHICLE INCLUDING SAME

Resumen de: WO2025146975A1

The present invention relates to a battery pack including: a plurality of battery cells; and a pack case configured to accommodate the plurality of battery cells and having, in an inner space thereof, a venting flow path configured to allow a venting gas discharged from the battery cells to flow therethrough, and a cooling flow path provided on at least one side of the venting flow path and configured to allow a cooling medium to flow therethrough.

LITHIUM IRON PHOSPHATE POSITIVE ELECTRODE MATERIAL, AND PREPARATION METHOD THEREFOR AND USE THEREOF

Resumen de: WO2025145397A1

The present invention belongs to the technical field of lithium iron phosphate positive electrode materials. Disclosed are a lithium iron phosphate positive electrode material, and a preparation method therefor and the use thereof. The lithium iron phosphate positive electrode material comprises small lithium iron phosphate particles and large lithium iron phosphate particles, wherein gaps among the large lithium iron phosphate particles are filled with at least a portion of the small lithium iron phosphate particles, and crystal lattices of the lithium iron phosphate small particles are doped with Ti. The lithium iron phosphate positive electrode material has a relatively high compaction density, which is beneficial for improving the discharge capacity and coulombic efficiency of the material. The preparation method therefor comprises: mixing a first slurry for forming large lithium iron phosphate particles with a second slurry for forming small lithium iron phosphate particles, and drying and sintering the resulting mixture. The lithium iron phosphate positive electrode material can be further used for preparing a battery.

BATTERY AND ELECTRIC DEVICE

Resumen de: WO2025145342A1

The present application discloses a battery and an electric device. The battery comprises a case, a heat exchange assembly, and at least one battery cell; the case comprises a plurality of first side beams, and the plurality of first side beams are connected to define a first accommodating cavity; the at least one battery cell is located in the first accommodating cavity; the heat exchange assembly is located in the first accommodating cavity, and comprises at least one heat exchange piece used for exchanging heat with the battery cell; and an accommodating slot is formed in at least one first side beam, and the at least one heat exchange piece is at least partially accommodated in the accommodating slot. In this way, the internal space of the case is saved, the space utilization rate of the battery is improved, and the structural compactness of the battery is improved, thereby improving the volumetric energy density of the battery.

MONITORING METHOD FOR ENERGY STORAGE APPARATUS, AND ELECTRIC APPARATUS AND ENERGY STORAGE APPARATUS

Resumen de: WO2025145611A1

Disclosed in the present application are a monitoring method for an energy storage apparatus, and an electric apparatus and an energy storage apparatus. The energy storage apparatus comprises a housing, an energy storage unit group, and a temperature and humidity sensor, wherein the energy storage unit group and the temperature and humidity sensor are arranged inside the housing. The monitoring method comprises: measuring a real-time temperature and a real-time humidity inside a housing by means of a temperature and humidity sensor; determining a dew point temperature matching the real-time humidity, and comparing the real-time temperature with the dew point temperature, so as to obtain a comparison result; and executing a processing policy matching the comparison result. By means of the method, the present application can monitor the environment inside an energy storage apparatus in real time, and can perform corresponding processing on the environment inside the energy storage apparatus, thereby more effectively maintaining the operation and usage of the energy storage apparatus during the process of using the energy storage apparatus.

MESH FOR AN ELECTRODE OF A LEAD-ACID BATTERY

Resumen de: US2025226422A1

The disclosure relates to a mesh for an electrode of a lead-acid battery, having a plurality of longitudinal ribs arranged spaced apart from one another in the transverse direction and having a plurality of transverse ribs arranged between two respective adjacent longitudinal ribs and connected thereto, which longitudinal and transverse ribs form a mesh pattern with open areas for receiving an active substance, wherein the longitudinal ribs have a first maximum width in the transverse direction at least in one section running in the longitudinal direction, which is formed in an optimised manner with respect to the total receiving volume provided by the open areas for receiving the active substance, wherein at least one further longitudinal rib is provided, which has a second, maximum width over its entire longitudinal extent in the transverse direction, said width exceeding the first, maximum width of the other longitudinal ribs.

Non-Aqueous Electrolyte and Lithium Secondary Battery Including the Same

Resumen de: US2025226452A1

Provided are a non-aqueous electrolyte, which includes an organic solvent containing ethylene carbonate, a non-solvent, and a lithium salt, wherein a degree of freedom A of the ethylene carbonate, which is represented by Equation (1), is 30% or less, and a lithium secondary battery including the same-:A={Pfree-EC/(Pfree-EC+PCoordination-EC)}×100  Equation (1):wherein in Equation (1), A is the degree of freedom of the ethylene carbonate, Pfree-EC is an integrated area of a graph which is obtained by deconvolution of a Raman spectrum of the electrolyte with a Gaussian function based on a peak at 893 cm−1, and PCoordination-EC is an integrated area of a graph which is obtained by deconvolution of the Raman spectrum of the electrolyte with a Gaussian function based on a peak at 903 cm−1.

BATTERY PACK

Resumen de: US2025226462A1

A battery pack may include a housing with an interface couplable to an external device configured to perform a group of applications. A battery pack may further include a plurality of battery cells disposed within the housing and electrically connected to the interface, the battery cells including a cathode, an anode, and a separator. The plurality of battery cells is configured to provide power to the external device for a runtime. The plurality of battery cells is additionally configured to fully recharge within a charge time, and wherein the charge time is less than a sum of the runtime plus a rest time corresponding to the time taken to prepare a new application group.

METHOD OF MANUFACTURING ALL-SOLID-STATE BATTERY INCLUDING SILICON-BASED ANODE ACTIVE MATERIAL, METHOD OF OPERATING SAME, AND METHOD OF TESTING SAME

Resumen de: US2025226464A1

Disclosed are a method of manufacturing an all-solid-state battery including a silicon-based anode active material, and methods of operating and testing an all-solid-state battery manufactured by the manufacturing method.

LITHIUM-ION BATTERY

Resumen de: US2025226451A1

A lithium-ion battery including a novel electrolyte and the like is provided. The lithium-ion battery includes a positive electrode active material containing nickel, cobalt, and manganese, and an electrolyte containing a fluorinated cyclic carbonate and a fluorinated chain carbonate. A discharge capacity value obtained by placing a half cell including the positive electrode active material and the electrolyte at an ambient temperature of 25° C., performing constant current charging at a rate of 0.1 C until a voltage of 4.5 V, performing constant voltage charging at 4.5 V until a current value of 0.05 C, placing the half cell at an ambient temperature of −40° C., and performing constant current discharging at the rate of 0.1 C until a voltage of 2.5 V satisfies greater than or equal to 50% of a discharge capacity value obtained by placing the half cell at the ambient temperature of 25° C.

ELECTRODE BODY AND POWER STORAGE ELEMENT

Resumen de: US2025226420A1

An electrode body includes an active material layer including an electrode active material and an electrolytic solution, an electrode conductor including (i) a first region where the active material layer is located and (ii) a second region being a region different from the first region and being a region to which a connection terminal can be electrically connected, and a resistance portion of the electrode conductor, the resistance portion being located closer to a side of the second region than the first region, the resistance portion exhibiting a higher resistance than the first region with respect to movement of the electrolytic solution along a surface of the electrode conductor.

SYSTEMS AND METHODS FOR DISASSEMBLING A BATTERY MODULE

Resumen de: US2025226472A1

Systems and methods are provided herein for disassembling a battery system. Further, systems and methods are provided herein for a battery apparatus configured for disassembly of a battery system. In addition, systems and methods are provided herein for preparing a battery system including a first plurality of members bonded with a first adhesive and a second plurality of members bonded with a second adhesive for disassembly of the battery system.

METHOD AND APPARTATUS FOR ASSESSING INTERNAL TEMPERATURE DISTRIBUTION OF BATTERY CELL, AND DEVICE AND STORAGE MEDIUM

Resumen de: US2025226468A1

The internal temperature distribution of a battery cell is assessed by acquiring lithium content at different positions on a negative electrode plate of a target battery cell and a corresponding test environment temperature and determining lithium intercalation reaction rate ratios at different positions based on the lithium content at different positions on the negative electrode plate. Temperature values at different positions on the negative electrode plate are calculated based on the lithium intercalation reaction rate ratios at different positions on the negative electrode plate and the test environment temperature. An internal temperature distribution assessment result of the target battery cell is determined based on the temperature values at different positions on the negative electrode plate. Temperature gradients at different positions can be calculated by measuring the lithium content on a lithium-intercalated negative electrode plate, so that the internal temperature distribution assessment result of the battery cell can be obtained.

ENERGY STORAGE SYSTEM

Resumen de: US2025226461A1

A control container configured to be connected to an external electrical system and at least one of power conversion system (PCS) including a DC unit having a DC line and configured to receive DC power from the PCS through the DC line, an AC unit having an AC line and configured to receive AC power from the external electrical system through the AC line, and a main controller connected to the AC unit and configured to receive a power from the external electrical system through the AC line.

Rechargeable Cell Architecture

Resumen de: US2025226470A1

A rechargeable battery cell a casing and first and second electrode materials separately positioned in the casing. A mechanical impulse element is positioned to mechanically move and dislodge gas bubbles from at least one of the first and second electrode materials in response to activation. In some embodiments the mechanical impulse element can include a vibratory piezoelectric element. In other embodiments, a gas vent in the battery cell can be used to release dislodged gas bubbles.

BATTERY MANAGEMENT APPARATUS AND OPERATING METHOD THEREOF

Resumen de: US2025226460A1

Discussed is a management apparatus that can include a heating unit including a heater configured to heat a plurality of battery units, an obtaining unit configured to obtain temperature information of a plurality of battery management systems (BMSs) respectively included in the plurality of battery units, and a controller configured to match a plurality of first identification information of the plurality of battery units to a plurality of second identification information of the plurality of BMSs, based on the temperature information of the plurality of BMSs and heating information of the heater.

ELECTRODE PLATE, ELECTRODE ASSEMBLY, AND RECHARGEABLE BATTERY INCLUDING THE SAME

Resumen de: US2025226418A1

An electrode plate includes: a base layer; a current collecting layer including: a first conductive layer; and a second conductive layer respectively on upper and lower surfaces of the base layer; and an electrode plate layer on at least one surface of the current collecting layer, wherein the current collecting layer includes: a current collecting portion where the electrode plate layer is on at least one surface; an extending portion extending outward from the current collecting portion; and a curved portion connected to the extending portion and having a portion that is bent.

BATTERY PACK

Resumen de: US2025226467A1

A battery pack may be provided. The battery pack may include battery modules arranged along rows and columns, slave battery management systems (BMSs) respectively between adjacent ones of the battery modules in the rows of the battery modules, configured to detect status information of the adjacent ones of the battery modules, and at different respective heights, and a master BMS configured to receive status information of the battery modules through wireless optical communication with the slave BMSs.

POSITIVE ELECTRODE ACTIVE MATERIALS, POSITIVE ELECTRODES, AND RECHARGEABLE LITHIUM BATTERIES

Resumen de: US2025226388A1

A rechargeable lithium battery including a positive electrode including a positive electrode active material, the positive electrode active material including a first positive electrode active material that includes a layered lithium nickel-manganese-based composite oxide and is in a form of secondary particles formed, the secondary particles including a plurality of primary particles, and an average particle diameter (D50) of the secondary particles is about 10 μm to about 25 μm, and a second positive electrode active material that includes a layered lithium nickel-cobalt-based composite oxide and is in a form of single particles, and an average particle diameter (D50) of the single particles is about 0.5 μm to about 8 μm.

ELECTRODE PLATE, ELECTRODE ASSEMBLY AND RECHARGEABLE BATTERY INCLUDING THE SAME

Resumen de: US2025226419A1

Provided is an electrode plate including an electrode plate layer, a current collector layer including a base layer, a first conductive layer and a second conductive layer respectively on an upper surface of the base layer and a lower surface of the base layer, a current collector part having at least one surface on which the electrode plate layer is located, an extension part extending outwardly from the current collector part, and a bent part connected to the extension part, and bent twice or more for the first conductive layer to contact the second conductive layer.

BATTERY MODULE, BATTERY WITH SAME, AND ELECTRIC DEVICE

Resumen de: WO2025145855A1

A battery module, a battery with same, and an electric device. The battery module (100) comprises: a plurality of battery cells (10), wherein the plurality of battery cells (10) are at least partially arranged in sequence in a first direction, in two adjacent battery cells (10) in the first direction, side walls of the two battery cells (10) that are arranged facing each other are both first casing walls (11), and a first recess (111) is formed in at least one of the two first casing walls (11); and thermal insulation pads (20), one of which is at least partially arranged in the first recess (111).

HEAT EXCHANGE ASSEMBLY, CASE BODY, BATTERY AND ELECTRICAL APPARATUS

Resumen de: WO2025145777A1

The present application provides a heat exchange assembly, a case body, a battery and an electrical apparatus. The heat exchange assembly comprises a heat exchange piece, a current collecting piece and a sleeve; the heat exchange piece is provided with a flow channel extending in a first direction, the current collecting piece being arranged at the two ends of the heat exchange piece in the first direction; the current collecting piece is provided with fluid inlets/outlets, the fluid inlets/outlets leading to the flow channel; the sleeve is mutually sleeved on at least one of the heat exchange piece and the current collecting piece, and is connected to the heat exchange piece and the current collecting piece. The heat exchange assembly provided by the present application helps to improve the connection strength of the current collecting piece and the heat exchange piece and the overall structural strength of the heat exchange assembly, thereby helping to improve the reliability of batteries.

POSITIVE ELECTRODE ACTIVE MATERIAL WITH CONTROLLED SPECIFIC SURFACE AREA, METHOD OF PREPARING SAME, AND POSITIVE ELECTRODE CONTAINING SAME

Resumen de: US2025223189A1

A positive electrode active material with a controlled specific surface area, a method of preparing the same, and a positive electrode containing the same, can have a density of the positive electrode active material being optimized by controlling the sintering conditions and composition of the positive electrode active material, thus maximizing the output characteristics of an all-solid-state battery containing the same. The positive electrode active material can include a lithium composite oxide enabling intercalation or deintercalation of lithium, wherein in the lithium composite oxide, a ratio (Sm/Sc) of a measured specific surface area (Sm) based on a Brunauer-Emmett-Teller (BET) method to a calculated specific surface area (Sc) based on a particle size distribution (PSD) analysis result is in a first range of 2.0 to 3.3.

CARBON NANOTUBE DISPERSION COMPOSITION, CARBON NANOTUBE RESIN COMPOSITION, MIXTURE SLURRY, ELECTRODE FILM, AND NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY

Resumen de: US2025223168A1

Provided is a carbon nanotube dispersion composition including carbon nanotubes, a dispersant, and a solvent and satisfying (1) and (2) as follows:(1) an average outer diameter of the carbon nanotubes calculated from an SEM image obtained by observing the carbon nanotubes included in the carbon nanotube dispersion composition is 15 nm or more and 50 nm or less; and(2) when a target pixel group in the SEM image obtained by observing the carbon nanotubes included in the carbon nanotube dispersion composition is set as the carbon nanotubes, and a value obtained by dividing an absolute maximum length by a length of a free curve, that is, a skeleton length, is set as linearity, a proportion of carbon nanotubes with a linearity of 0.9 or more among carbon nanotubes with a skeleton length of 1 μm or more is 40% or more and 90% or less.

COMPOSITION COMPRISING LITHIUM-CONTAINING COMPOUND, AND BATTERY DISPOSAL METHOD

Resumen de: US2025223183A1

The present disclosure relates to a lithium compound for recovering valuable metals and a method of recovering the same, and a method of recovering a lithium compound for recovering valuable metals includes: preparing a battery; freezing and forcibly discharging the battery; shredding the battery into a battery shredded material; and heating the battery shredded material, wherein the heating of the battery is performed in a temperature range of 1,100 to 1,400° C., a degree of vacuum (Log P atm) in the heating of the battery is in a range of −4 to 0, a lithium compound recovered through the heating of the battery contains impurities, and the impurities include, by wt %, 1.8 wt % or less (excluding 0 wt %) of Na, 0.06 wt % or less (excluding 0 wt %) of K, 0.62 wt % or less (excluding 0 wt %) of Ca, and 0.47 wt % or less (excluding 0 wt %) of Mg.

LOW-DEFECT CARBON NANOTUBE SLUDGE AND PREPARATION METHOD THEREFOR, CONDUCTIVE COMPOSITE MATERIAL BASED ON THE LOW-DEFECT CARBON NANOTUBE, NEGATIVE ELECTRODE SLURRY USING SAME, NEGATIVE ELECTRODE, AND LITHIUM SECONDARY BATTERY

Resumen de: US2025223167A1

The present invention relates to a low-defect carbon nanotube sludge and a preparation method therefor, a conductive composite material based on the low-defect carbon nanotube, a negative electrode slurry using same, a negative electrode, and a lithium secondary battery, and has the technical gist of comprising carbon nanotubes that have crystallinity while satisfying relational expression 1 below. relational expression 1 5≤IG/ID≤50 (wherein IG/ID is a value calculated as a ratio of a maximum peak intensity (IG) measured at 1,580±50 cm−1 to a maximum peak intensity (ID) measured at 1,360±50 cm−1 in a wavenumber region of a Raman spectrum.)

NEGATIVE POLE PIECE AND PREPARATION METHOD THEREFOR, BATTERY, AND ELECTRICAL APPARATUS

Resumen de: WO2025145878A1

The application discloses a negative pole piece and a preparation method therefor, a battery, and an electrical apparatus. The negative pole piece comprises: a negative electrode current collector and a negative electrode active material layer. The negative electrode active material layer is arranged on at least one side of the negative electrode current collector. The negative electrode active material layer comprises dielectric material particles, and the volume average particle size Dv50 of the dielectric material particles is D 1 , wherein D 1 is 400 nm -2000 nm. On the basis of the total mass of the negative electrode active material layer, the proportion of the dielectric material particles is 0.1% -10%. Therefore, the negative pole piece in the present application uses the dielectric material particles having the described particle size and content, such that the quick charging performance of the battery can be improved.

WINDING DEVICE AND WINDING METHOD

Resumen de: WO2025145748A1

The present application relates to the technical field of batteries, and provides a winding device and a winding method. The winding device comprises a feeding mechanism and a winding needle. The feeding mechanism is used for conveying an electrode sheet and a separator, and the winding needle is used for winding the electrode sheet and the separator which are conveyed by the feeding mechanism to form an electrode assembly, wherein the relationship between the diameter r of the winding needle and the diameter R of the electrode assembly formed by winding satisfies: (R/r)>10.

ENERGY EQUALIZATION SYSTEM AND ENERGY STORAGE SYSTEM

Resumen de: WO2025145866A1

The present application provides an energy equalization system and an energy storage system. The energy equalization system is arranged outside an energy storage device, and the energy balance system comprises at least two equalization circuits. In the same time period, a first equalization circuit is used for discharging a first energy storage unit, and a second equalization circuit is used for charging a second energy storage unit, thereby achieving energy equalization of the energy storage units in the energy storage device. Switching circuits arranged in the energy equalization system can realize the sharing of the equalization circuits between the energy storage units, thereby improving the utilization rate of the equalization circuits, and reducing energy equalization costs. Moreover, in the energy equalization system, equalization modules arranged in the energy storage units are replaced with the equalization circuits having large power, so that the energy equalization costs are reduced, the equalization power is increased, and the equalization time is shortened.

BATTERY WELDING APPARATUS AND BATTERY WELDING METHOD

Resumen de: WO2025145618A1

Provided in the present application are a battery welding apparatus and a battery welding method. The battery welding apparatus comprises a conveying line, a battery cell feeding device, a connecting piece feeding device and a welding device. The conveying line comprises a plurality of carriers arranged in a conveying direction thereof. The battery cell feeding device comprises at least two battery cell feeding mechanisms, the at least two battery cell feeding mechanisms being respectively used for feeding at least two battery cell groups into at least two target carriers of the conveying line, and each battery cell group comprising at least two battery cells. The connecting piece feeding device is used for feeding connecting pieces into the at least two target carriers. The welding device is arranged beside the conveying line. The conveying line is movably arranged to successively convey the at least two target carriers to the welding device for welding. The welding device is used for welding the connecting piece and the at least two battery cells in each target carrier. The battery welding apparatus of the present application improves the welding efficiency.

CONVEYER APPARATUS AND MEANDERING CORRECTION METHOD

Resumen de: US2025223129A1

A floatation roll supports a work to be conveyed contactlessly using a force applied to the work contactlessly. The floatation roll has a cylindrical shape extending in a direction of width of the work, and at least a surface of the floatation roll facing the work being formed by a circumferential surface. A driving unit rotates the floatation roll in a yaw direction. Of a wrap angle of the work supported by the floatation roll contactlessly, a wrap angle on an entry side with respect to an apex point and a wrap angle on an exit side with respect to the apex point are set to be different.

MANDREL MEMBER OF WINDER FOR SECONDARY BATTERY

Resumen de: US2025223126A1

A mandrel member of a winder for a secondary battery, which is mounted in a winder configured to manufacture a jelly roll-type electrode assembly by winding a stack of a first electrode plate, a separator, and a second electrode plate, the mandrel member comprising a cylindrical body having a hollow portion, wherein the cylindrical body includes a plurality of slits having a planar shape to cross the cylindrical body in a hollow axis direction so that the hollow portion inside the cylindrical body is in fluid communication with the outside of the cylindrical body.

ELECTRICALLY POWERED VEHICLES WITH REDUNDANT POWER DISTRIBUTION CIRCUITS

Resumen de: US2025222826A1

Electrically powered vehicles with redundant power distribution circuits employ inverters and a multi-phase alternating current (AC) motor. An electrically powered vehicle includes batteries, inverters, interphase transformers, and a three-phase AC motor. Each of the inverters generates a three-phase AC input from power supplied by an associated one of the batteries. The interphase transformers generate drive phases for the AC motor from the three-phase AC inputs generated by the inverters.

DUAL PUMP IMMERSION COOLING SYSTEM FOR ELECTRIC VEHICLES

Resumen de: US2025222827A1

An immersion cooling system having a dual pump system architecture and operation for immersion cooling of batteries for electric vehicles. The system can include a first pump and a second pump arranged in parallel, the first pump being, relative to the second pump, a high-pressure, low-flow pump. The differences in pressure and flow rate capacities of the pumps can be beneficial with respect to the pumping of a dielectric cooling fluid at different viscosities. In instances in which the dielectric cooling fluid has a relatively high viscosity, the immersion cooling system can selectively operate in a pressure mode wherein the relatively higher-pressure capabilities of the first pump are utilized. Conversely, in instances in which the dielectric cooling fluid has a relatively low viscosity, the immersion cooling system can selectively operate in a flow mode wherein the relatively higher flow capabilities of the second pump are utilized.

Supercapacitor Pack for a Vehicle Having a Battery Power Source

Resumen de: US2025222788A1

A supercapacitor pack is provided for a vehicle having a power source comprising a battery pack accommodated in a battery pack housing of the vehicle. The supercapacitor pack comprises a housing having means for attaching the supercapacitor pack to the battery pack housing such that a surface of the supercapacitor pack housing contacts a surface of at least one battery of the battery pack to secure or at least stabilize the position of the at least one battery relative to the battery pack housing. The supercapacitor pack housing has an interior space accommodating one or more supercapacitor devices. The one or more supercapacitor devices are electrically connected to an electrical port provided on the supercapacitor pack housing. This enables the supercapacitor pack to be electrically easily connected to the battery pack of the vehicle.

COMPOSITE NEGATIVE ELECTRODE SHEET, PREPARATION METHOD THEREFOR AND LITHIUM ION BATTERY

Resumen de: WO2025145851A1

A composite negative electrode sheet, a preparation method therefor and a lithium ion battery. The composite negative electrode sheet uses a double-layer coating design. A first active substance layer and a second active substance layer are successively provided on the surface of a negative electrode current collector, the active substance of the first active substance layer being first graphite, and the active substance of the second active substance layer being second graphite. The height-width ratio and OI value of the first graphite and the height-width ratio and OI value of the second graphite satisfy the following relationship: 2≤(B×OIa)/(A×OIb)≤30, where A is the height-width ratio of the first graphite and is 0.1 to 0.65, OIa is the OI value of the first graphite and is 8 to 20, B is the height-width ratio of the second graphite and is 0.8 to 0.99, and OIb is the OI value of the second graphite and is 2 to 10.

HIGH-VOLTAGE BOX, BATTERY AND ELECTRICAL DEVICE

Resumen de: WO2025145651A1

Provided in the present application are a high-voltage box (400), a battery (100) and an electrical device. The high-voltage box (400) comprises a box body (410) connected to a case body (10), an accommodation cavity (4101) being formed in the box body (410), and the box body (410) being provided with a through hole (411) communicated with the accommodation cavity (4101). The high-voltage box (400) provided in the embodiments of the present application enables an electrical connection structure (30) of the battery (100) to be inserted into the through hole (411) and to extend into the accommodation cavity (4101), such that the electrical connection structure (30) and an electrical component (420) in the box body (410) can be directly and electrically connected, which, compared with the manner of mating connection of a male terminal and a female terminal of a connector, can effectively reduce the probability of connection failure.

INSULATING FILM FOR BATTERY, AND BATTERY

Resumen de: WO2025145801A1

An insulating film (100) for a battery, and the battery. The insulating film comprises a first sub-insulating film (10) and a second sub-insulating film (20) which are integrated and arranged in a first direction (X direction), wherein the first sub-insulating film (10) is provided with a first positioning hole (11), and the second sub-insulating film (20) is provided with a second positioning hole (21); and the first positioning hole (11) is a circular hole, the connecting line between the center point of the first positioning hole (11) and the center point of the second positioning hole (21) is a first extending straight line, and the extension direction of the second positioning hole (21) is the same as the extension direction of the first extending straight line.

A POWER SYSTEM FOR DRIVING AN ELECTRIC MOTOR

Resumen de: US2025222775A1

A power system for driving a direct current electric motor that is controlled by a driving voltage. The power system includes a plurality of cell modules, each cell module having one or more cells and a plurality of connectors for connecting the cell modules to form a configurable battery to generate the driving voltage. The connectors connect the cell modules into configurable clusters. A voltage level controller controls the configuration of the configurable clusters to provide the driving voltage at one of a set of selectable voltage levels, wherein for each voltage level of said set a share of a current drawn from each of the cell modules with respect to a total current drawn from the configurable battery is lower than for each higher voltage level of said set.

METHOD OF MANUFACTURING CURRENT COLLECTOR FOIL WITH RESIN FILM

Resumen de: US2025222660A1

A method of manufacturing a current collector foil with a resin film includes a step A of cutting a metal foil for a current collector foil into sheets, a step B of allowing a movable stage to hold the cut metal foil for each sheet by suction and allowing the movable stage to move the metal foil held by suction onto a resin film, and a step C of bringing the resin film into contact with the metal foil to heat fusion-weld the resin film to the metal foil, in which the movable stage includes a plate-like body including a heating-suction region, and an area of the heating-suction region is smaller than an area of the cut metal foil.

METAL FOIL LASER CUTTING METHOD

Resumen de: US2025222543A1

A metal foil laser cutting method includes: intermittently irradiating a metal foil that forms an electrode of a battery and that serves as a workpiece with a pulse of a laser light of which energy per pulse is 2 mJ or more and 100 mJ or less and of which rise time is 2 μs or shorter to laser cut the workpiece.

ROLL PRESS APPARATUS AND PRESSURE-BONDING METHOD

Resumen de: US2025222501A1

In a roll press apparatus, a main conveyer line conveys a metal foil to be used as a substrate. A pressurizing roll is provided on the main conveyer line. A lithium conveyer line is a conveyer line that conveys a lithium foil to be bonded to the metal foil and merges with the main conveyer line on an upstream side of the pressurizing roll. The pressurizing roll rolls the lithium foil on a surface of the metal foil and bonds the lithium foil to the surface of the metal foil by pressure-bonding.

BATTERY MANAGEMENT APPARATUS AND METHOD

Resumen de: US2025224701A1

A battery management apparatus according to an embodiment of the present disclosure includes a data obtaining unit for obtaining battery information including at least one of voltage and current of a battery and a controller for estimating a state of health (SOH) of the battery based on the battery information, calculating an SOH score for the battery based on a reference value corresponding to the SOH and the SOH in a plurality of reference profiles, predicting a plurality of SOH of the battery during a target period, calculating a remaining useful life (RUL) score for the battery based on the plurality of SOH, and determining a safety score of the battery according to a safety class of the battery based on the battery information.

CURRENT COLLECTOR DIAGNOSIS

Resumen de: US2025224452A1

Techniques are provided for current collector diagnosis. In one embodiment, the techniques involve determining that a current is flowing through a current collector of the battery cell, generating a mechanical excitation to the current collector, determining an amplitude of the voltage across the battery cell based on the mechanical excitation, and determining a presence of a tear or a separation of a foil of the current collector based on the amplitude of the voltage across the battery cell.

BATTERY CELL ASSEMBLY, BATTERY AND VEHICLE

Resumen de: WO2025145800A1

A battery cell assembly (100), a battery and a vehicle. The battery cell assembly (100) comprises: a battery cell body (10); and an insulating film (20), wherein the insulating film (20) comprises a substrate layer (21) and a bonding layer (22) which are stacked, the substrate layer (21) comprising a first sub-substrate layer (211) and second sub-substrate layers (212) which are integrated and arranged in a first direction (Y direction) of the battery cell assembly (100), the bonding layer (22) being arranged on the surface of the first sub-substrate layer (211), and the first sub-substrate layer (211) being adhered to the surface of the battery cell body (10) by means of the bonding layer (22).

BUS-BAR ASSEMBLY, BATTERY, AND ELECTRICAL DEVICE

Resumen de: WO2025145592A1

A bus-bar assembly (10) inside a battery (100), used for achieving electrical connection of a plurality of battery cells (20), wherein the plurality of battery cells (20) and the bus-bar assembly (10) are accommodated in a case (30). The bus-bar assembly further comprises a heat absorption component (2); heat generated by the plurality of battery cells (20) can be transferred by means of a bus-bar component (1); the heat absorption component (2) is connected to the bus-bar component (1) to absorb the heat on the bus-bar component (1), so as to reduce the heat transferred from one battery cell (20) to another battery cell (20), thereby improving the reliability of the battery (100).

BATTERY CELL COVER PLATE ASSEMBLY, BATTERY CELL, BATTERY PACK, AND VEHICLE

Resumen de: WO2025145854A1

A battery cell cover plate assembly, a battery cell, a battery pack, and a vehicle. The battery cell cover plate assembly comprises a cover plate body (1), a fixing member (2), a first insulating member (3), and a first heat insulation member (4), wherein the first insulating member (3) is arranged between the cover plate body (1) and the fixing member (2), and the first heat insulation member (4) is arranged between the fixing member (2) and the first insulating member (3).

DIFFERENTIAL ELECTROCHEMICAL MASS SPECTROMETRY FOR ONLINE GAS EVOLUTION OF POUCH CELLS

Resumen de: US2025224368A1

A method for differential electrochemical mass spectrometry for online gas evolution of pouch cells includes supplying an inert carrier gas to a pouch cell, and supplying gas from the pouch cell to the intake of a differential electrochemical mass spectrometer. A system for continuous quantitative gas evolution monitoring in a pouch cell comprising a differential mass spectrometer, a supply of inert carrier gas, a conduit connected to the pouch cell for conducting inert carrier gas to the pouch cell; and a conduit connecting the pouch cell for conducting gas from the pouch cell to the differential mass spectrometer.

Method and Apparatus for Identifying a Malfunction of Contactors of a DC Voltage Charging Connection for an Electric Vehicle

Resumen de: US2025224298A1

Various embodiments of the teachings herein include methods for determining the functional operability of a pressure sensor of a battery arrangement with a battery housing in a vehicle, wherein the pressure sensor generates a pressure signal corresponding to the pressure within the battery housing. An example includes: introducing a gas mixture into the battery housing from outside the battery housing for the purpose of increasing the pressure within the battery housing; and determining that the pressure sensor is functional if, after the process of introducing the gas mixture into the battery housing, the pressure signal of the pressure sensor indicates a pressure which exceeds a predetermined pressure threshold value; else determining that the pressure sensor is malfunctioning.

BATTERY PACK INCLUDING GAS SENSING APPARATUS USING MIE SCATTERING AND GAS DETECTION METHOD USING THE SAME

Resumen de: US2025224322A1

A battery pack is capable of sensing the generation of a gas using Mie scattering, whereby it is possible to rapidly detect abnormality of the battery pack. In addition, whether a battery is abnormal is determined in consideration of a gas generation time as well as the generation of the gas, whereby it is possible to rapidly detect whether the battery is abnormal.

METHOD AND APPARATUS FOR RETROFITTING BATTERY-OPERATED DEVICES

Resumen de: US2025227859A1

A module for providing power to a battery-operated device having a body in which is formed a battery compartment and a cover having one or more first elements cooperable with one or more second elements provided to the body for releasably positioning the cover over the battery compartment. The module has an energy-generating surface, an energy storage device coupled to the energy-generating surface, and a storage device cover positionable over the energy-generating surface. The storage device cover has one or more third elements cooperable with the one or more second elements provided to the body for releasably positioning the module cover over the battery compartment when the energy storage device is positioned within the battery compartment in engagement with one or more electrical contacts positioned within the battery compartment.

Printed Circuit Board For Battery Pack Capable Of Measuring Temperature And Method For Manufacturing Same

Resumen de: US2025227847A1

The present invention relates to a printed circuit board for a battery pack capable of measuring temperature and a method for manufacturing same. The printed circuit board for a battery pack according to the present invention, capable of measuring temperature and provided in a battery pack including a plurality of secondary batteries, includes: a film; a conductive pattern provided on a first portion of the film; and a temperature sensor provided on a second portion of the film and configured to measure the temperature inside the battery pack.

COMPOSITE ELECTROLYTE OF LITHIUM-ION BATTERY, LITHIUM-ION BATTERY, AND PREPARATION METHODS THEREFOR

Resumen de: WO2025145852A1

Provided are a composite electrolyte of a lithium-ion battery, a lithium-ion battery, and preparation methods therefor. The preparation method for the composite electrolyte of a lithium-ion battery comprises: subjecting a PSBNR-co-PTNI polymer to a heat treatment in an inert gas, so as to obtain a primary host matrix; compounding the primary host matrix with a solid electrolyte, so as to obtain a complex, wherein the solid electrolyte comprises LixLa3Zr1.4Ta0.6O12 and LiyAl0.5Ge1.5P3O12, where x=0.6 to 8, and y=0.6 to 4; dispersing the complex in a solvent, so as to obtain a dispersion; preparing the dispersion into a solid electrolyte film by using an electrostatic spinning method or a tape casting film-forming method; and subjecting the solid electrolyte film to a heat treatment in an inert gas, so as to obtain a composite electrolyte of a lithium-ion battery.

SEPARATOR AND PREPARATION METHOD THEREFOR, BATTERY AND ELECTRICAL APPARATUS

Resumen de: WO2025145671A1

A separator and a preparation method therefor, a battery and an electrical apparatus. The separator comprises a base film and a first coating, the first coating being arranged on one side of the base film, the first coating comprising dielectric material particles, and the relative dielectric constant of the dielectric material particles being 1000-10000. The separator comprises the first coating comprising the dielectric material particles having the described relative dielectric constant, thus improving the cycle performance of batteries containing same during quick charging.

HEAT TREATMENT DEVICE AND BATTERY PROCESSING APPARATUS

Resumen de: WO2025145842A1

A heat treatment device (100) and a battery processing apparatus. The heat treatment device (100) comprises: an oven (10), which is internally provided with a conveying channel (11); a first heating assembly (20), which is provided with an air supply port (21) in communication with the conveying channel (11); and a second heating assembly (30), which is used for projecting laser onto a surface of an electrode sheet (200) in the conveying channel (11), wherein in a preset direction, the first heating assembly (20) and the second heating assembly (30) are respectively located on two sides of the conveying channel (11), and the opening direction of the air supply port (21) is arranged opposite the projection direction of the second heating assembly (30). The first heating assembly (20) performs heat treatment on the electrode sheet (200) in an air supply manner, and the second heating assembly (30) performs heat treatment on the electrode sheet (200) in a laser manner, such that heating effects of two different manners can be combined, thereby improving the quality of heat treatment of the electrode sheet (200); moreover, the opening direction of the air supply port (21) is arranged opposite the projection direction of the second heating assembly (30), such that the first heating assembly (20) and the second heating assembly (30) can work together, thereby making the electrode sheet (200) heated more uniformly.

BATTERY-POWERED STAND-ALONE MOTOR UNIT

Resumen de: US2025226774A1

A stand-alone motor unit for use with a piece of power equipment includes a housing and a flange coupled to the housing on a first side thereof. A plurality of apertures through the flange defines a first bolt pattern that matches an identical, second bolt pattern defined in the piece of power equipment. An electric motor has a power output of at least about 2760 W. The motor includes a stator having a nominal outer diameter of up to about 80 mm and a rotor supported for rotation within the stator. A power take-off shaft receives torque from the rotor and protrudes from one of the flange or a second side of the housing. A controller is positioned within the housing and electrically connected to the motor. A battery pack for powering the motor has battery cells having a nominal voltage of up to about 80 V.

FOLDABLE SOLAR PANEL

Resumen de: US2025226793A1

A foldable solar panel including at least two solar modules mounted to a substrate. The foldable solar panel includes hook and loop tape to secure the foldable solar panel in the folded configuration. The foldable solar panel includes at least two straps and at least two horizontal rows of webbing operable to attach the foldable solar panel to a load-bearing platform. The foldable solar panel does not include a controller. The foldable solar panel is operable to charge a battery faster than previously known in the art.

Method for Putting into Operation, Forming and Aging a Modular Battery Storage System

Resumen de: US2025226681A1

The invention relates to a method for putting at least one energy-storage module into operation, which energy-storage module is preferably intended for a vehicle and comprises a multilevel converter system, in which method multiple energy-storage modules and transistors are provided, wherein each energy-storage module can be connected in parallel with or connected in series with the adjacent energy-storage module and/or can bypass the adjacent energy-storage module and comprises at least one energy-storage cell, and the energy-storage modules, preferably the transistors, are connected in such a way that formation and/or aging is carried out during storage, transport to the vehicle and/or after installation in the vehicle.

ELECTRICITY STORAGE SYSTEM, CHARGING CONTROL METHOD, PROGRAM

Resumen de: US2025226682A1

An electricity storage system according to the present disclosure includes a detector, a determiner, and a charging controller. The charging controller sets, when the determiner determines, based on a result of detection by the detector, the degree of deterioration of the electrical storage unit to be a first level, a charge voltage, with which a charge circuit charges the electrical storage unit, at a first voltage. The charging controller sets, when the determiner determines the degree of deterioration to be a second level indicating more significant deterioration than the first level, the charge voltage at a second voltage higher than the first voltage. The charging controller sets, when the determiner determines the degree of deterioration to be a third level indicating more significant deterioration than the second level, the charge voltage at a third voltage higher than the second voltage.

BATTERY PACKAGE AND SYSTEM

Resumen de: US2025226673A1

A battery package is provided. The battery package includes a battery, at least one terminal coupled to an antenna, a single wire interface configured to communicate with a processor and coupled to the at least one terminal, a battery authentication circuit arranged on the battery, a choke inductor coupled to the single wire interface, and a clamping transistor circuit including a clamping transistor and coupled to the choke inductor and configured to clamp a voltage applied to the single wire interface to an operating voltage of the battery authentication circuit.

ENERGY-EFFICIENT ANALYTE DETECTION SYSTEM

Resumen de: US2025221638A1

An energy-saving analyte detection system includes an analyte detection device and an auxiliary installer for installing the analyte detection device on the skin surface of a user. The analyte detection device includes a transmitter and a sensor, wherein the transmitter comprises a battery, a wake-up module and a working module. The wake-up module includes a processor, a state switching component and a field effect transistor. Before installation, the state switching component is in an open circuit, the processor is powered on, but is in a deep dormant state, and the field effect transistor is enabled to be in an open circuit; the transmitter does not transmit a signal to the outside. After the analyte detection device is installed, the state switching component is in a closed circuit, the processor is converted into a working state, and the transmitter starts to transmit a signal to the outside.

SYSTEM AND METHOD FOR AN ENHANCED HAIR DRYER

Resumen de: US2025221508A1

A system and method for an intelligent hair drying/styling apparatus with user information transmission and storage capabilities is herein provided. The hair drying/styling apparatus houses a control circuit board and an infrared or temperature sensor (or camera) in order detect an individual's hair condition moisture level to determine a user specific, customizable dryer setting. The information detected by the sensor is stored locally, on a proximal Internet-enabled device, or on a remote or cloud-based server and accessed by the hair drying/styling apparatus through a wireless local area network connectivity function. This innovation will enable any number of hair professionals and or end consumers to improve styling and dry time. According to the present invention, energy usage is reduced to enable a more efficient design.

PH DECOUPLED REDOX FLOW BATTERIES

Resumen de: WO2025147702A1

The present invention provides a single-membrane pH-decoupling redox flow batteries (e.g., aqueous redox flow batteries) that employ electrolytes of differing pH to develop a cell with high round-trip energy efficiency at an open-circuit voltage greater than the voltage for water splitting. Further, the invention provides an acid-base regeneration system to restore the negolyte and posolyte pHs to their initial values to compensate for any long-term acid/base crossover.

NONAQUEOUS ELECTROLYTE FOR LITHIUM ION ENERGY STORAGE DEVICE

Resumen de: WO2025147652A1

In an aspect of the present disclosure is a nonaqueous electrolyte formulation including one or more nonaqueous solvents, one or more lithium salts, a cathode additive; and one or more anode additives, where the formulation forms a solid electrolyte interface on a surface of a cathode, and mitigates a reaction between electrolyte and an active material, preventing active material degradation.

BATTERY PACK BOX BODY, BATTERY PACK, ELECTRICAL APPARATUS AND METHOD FOR MANUFACTURING BATTERY PACK BOX BODY

Resumen de: WO2025145783A1

A battery pack box body (100), a battery pack (1000), an electrical apparatus, and a method for manufacturing the battery pack box body (100), belonging to the technical field of batteries. The battery pack box body (100) comprises: a bottom plate (110); a side wall assembly (130), which surrounds and extends in the circumferential direction of the bottom plate (110) and is connected to the bottom plate (110); a moldable material assembly (120), at least part of the moldable material assembly (120) extending in the circumferential direction of the side wall assembly (130) so as to provide support on the inner side and the outer side of the side wall assembly (130); and a composite material member (140), the composite material member (140) extending in the circumferential direction of the side wall assembly (130) and forming on the inner side of the side wall assembly (130) a cavity (190) capable of accommodating battery cells (180) of the battery pack (1000).

CURRENT COLLECTING ASSEMBLY AND PREPARATION PROCESS THEREFOR, HEAT EXCHANGE APPARATUS, BATTERY AND ELECTRIC DEVICE

Resumen de: WO2025145779A1

The present application applies to the technical field of batteries. Provided are a current collecting assembly and a preparation process therefor, a heat exchange apparatus, a battery and an electric device. The current collecting assembly comprises a current collector and a connector, wherein the current collector is a non-metal part, and the connector is a metal part; the current collector and the connector constitute an integrally formed component; and the current collector is connected to a heat exchanger by means of the connector. The present application aims to reduce the processing difficulty of a heat exchange device, and can appropriately reduce the cost.

LITHIUM-ION BATTERY AND ELECTRIC DEVICE

Resumen de: WO2025145683A1

The present invention provides a lithium-ion battery, comprising a case, and a battery cell and an electrolyte which are provided in the case. The electrolyte comprises a carbon-carbon unsaturated bond containing nitrile additive with a mass percentage of 0.02%-2.5%; the battery cell comprises a positive electrode sheet and a negative electrode sheet; the positive electrode sheet comprises a positive electrode active material layer; the positive electrode active material layer comprises a positive electrode active particle containing a nitrile group on the surface; the mass ratio of nitrogen atoms in the nitrile group is X% within an area between an outer surface and a first selected surface of the positive electrode active particle, wherein 0.1≤X; the negative electrode sheet comprises a negative electrode active material layer; the negative electrode active material layer comprises a negative electrode active particle; and the mass ratio of nitrogen atoms is Y% within an area between an outer surface and a second selected surface of the negative electrode active particle, wherein 0

METHOD AND APPARATUS FOR SETTING BATTERY PACK IDENTIFIER

Resumen de: US2025226672A1

An apparatus for setting a battery pack identifier of a battery pack, the apparatus comprising: a first supply configured to supply a power source voltage through a first pin; a second supply configured to supply a ground voltage through a second pin; a plurality of analog-to-digital converters having an input pin and an output pin, and configured to transmit a voltage corresponding to a voltage input through the input pin to the output pin; a plurality of jumper wiring configured to connect input pins of the plurality of analog-to-digital converters with the first pin or the second pin, respectively; and a controller configured to set the battery pack identifier of the battery pack based on the voltages received through the output pin of each of the plurality of analog-to-digital converters.

CHARGER AND CHARGING METHOD FOR BATTERY PACK

Resumen de: US2025226676A1

A charger and charging method for a battery pack are provided. The charger comprises a switch provided on a charging loop of a power supply, and a control circuit for controlling on/off of the switch; wherein a first terminal of the control circuit is connected to the switch, and a second terminal of the control circuit is configured to be connected to a discharge terminal of the battery pack; the battery pack supplies power to the control circuit when the discharge terminal of the battery pack is connected to the second terminal of the control circuit; and the control circuit, when being energized, controls to close the switch to complete the charging loop.

POWER CONTROL CIRCUIT AND ELECTRONIC DEVICE WHICH REDUCE STANDBY POWER, AND METHOD THEREFOR

Resumen de: US2025226686A1

A power control circuit may include: a switch; a communication interface; a signal detector configured to output a wake-up signal based on a first signal; a controller configured to control the switch to transmit power from a power source to a first power circuit of an electronic device, based on a second signal obtained through the communication interface; and a second power circuit configured to transmit power to the controller and the communication interface, based on the wake-up signal output from the signal detector.

WEARABLE AND LIGHTWEIGHT PORTABLE POWER CASE

Resumen de: US2025226677A1

Systems, methods, and articles for a wearable and lightweight portable power case are disclosed. The portable power case is comprised of a cylindrical housing, at least two battery elements connected to a printed circuit board (PCB), and at least one separating barrier between the at least two batteries and the PCB. The portable power case is operable to supply power to an amplifier, a radio, a wearable battery, a mobile phone, a tablet, a portable satellite dish and/or any other power consuming device. The portable power case is operable to be charged using solar panels, vehicle batteries, AC adapters, non-rechargeable batteries, and/or generators.

ELECTRONIC DEVICE AND METHOD FOR MANAGING PLURAL BATTERIES

Resumen de: US2025226679A1

An electronic device and method are disclosed, including a first and second battery, a first and second fuel gauge, and a processor. The processor implements the method, including: determining capacity ratios of the first and second batteries based at least on absolute capacities of the first and second batteries, as identified via the first and second fuel gauges, respectively, calculating a residual capacity of the first battery and a residual capacity of the second battery based on at least one of the determined capacity ratios and the obtained states of the first and second battery, respectively, and outputting the calculated residual capacity of the first battery and the calculated residual capacity of the second battery.

SYSTEM FOR MULTI-LAYER BATTERY ELECTRODE FABRICATION

Resumen de: WO2025147385A1

A system for multi-layer battery electrode fabrication is provided. The system includes a first spreader coating system including a chamber for dispensing first powder particles onto a substrate, a first spreading coating assembly to create a first uniform coating of the first powder particles, and a first calendering assembly to create a first compressed powder coating on the substrate. The system includes a second spreader coating system including a chamber for dispensing second powder particles onto the first compressed powder coating, a second spreading coating assembly to create a second uniform coating of the second powder particles, and a second calendering assembly to create a second compressed powder coating on the first compressed powder coating. The first and second compressed powder coatings define a multi-layer coating on the electrode.

FLAME RETARDING ELECTROLYTE FOR LITHIUM ION ENERGY STORAGE DEVICE

Resumen de: WO2025147674A1

In an aspect of the present disclosure is a non-flammable electrolyte formulation comprising one or more non-aqueous organic solvents, a cathode additive, one or more anode additives, and one or more lithium salts, a non-flammable material comprising phosphazene, where the formulation is self-extinguishing or does not combust when exposed to flame, and does not exhibit reduced electrochemical performance due to the non-flammable properties of the electrolyte.

IRON POWDER, IRON ELECTRODE, IRON BATTERY, AND METHOD OF MANUFACTURE THEREOF

Resumen de: WO2025147423A1

An electrode, including a first iron material and a second iron material. The first iron material is a first reduced iron and the second iron material is different from the first iron material. Also provided is an electrochemical cell comprising an electrode including a first iron material and a second iron material. Further provided is a method of making an electrode.

STATE OF CHARGE (SOC) OPTIMIZATION OF RECONFIGURABLE BATTERY NETWORK

Resumen de: WO2025147216A1

The present invention relates to state of charge (SOC) optimization of reconfigurable battery network which comprises the reconfigurable battery structure represented by the reconfigurable energy enhanced architecture "REEA", the optimization algorithm and the battery management system "BMS" which comprises the battery balancing system, the battery charging system and the battery discharging system which includes the replacement process.

POUCH-TYPE SECONDARY BATTERY, POUCH SEALING DEVICE, AND SEALING METHOD USING SAME

Resumen de: WO2025147184A1

The present invention relates to a pouch-type secondary battery, a pouch sealing device, and a sealing method using same and, more particularly, to: a pouch-type secondary battery in which a drawing process of a pouch can be excluded and durability can be improved; a pouch sealing device; and a sealing method using same. According to an embodiment of the present invention, provided is a pouch-type secondary battery comprising: an electrode assembly provided with an electrode lead on at least any one of one side surface and the other side surface; and a pouch in which a middle part of a pouch film is folded to cover the upper surface, the lower surface, and the rear surface of the electrode assembly so as to surround the electrode assembly, and including a sealing part formed by thermally fusing edge parts positioned at the front surface and both side surfaces of the electrode assembly, wherein the sealing part comprises a folding sealing part that is positioned on each of one side surface and the other side surface of the electrode assembly and thermally fused by folding a portion of the pouch film, and the folding sealing part comprises: a front folding sealing part formed close to the front surface of the electrode assembly; and a rear folding sealing part formed close to the other side surface of the electrode assembly.

BATTERY CELL, BATTERY, ELECTRIC DEVICE, AND BATTERY STATE MONITORING METHOD

Resumen de: WO2025145631A1

The present application provides a battery cell, a battery, an electric device, and a battery state monitoring method. The battery cell comprises a battery body, a carrier communication unit, and a sensor assembly; the battery body is provided with a pole that extends from the interior of the battery body to the exterior of the battery body; the sensor assembly is electrically connected to the carrier communication unit, and the carrier communication unit is electrically connected to the pole; and the carrier communication unit is used for receiving monitoring parameters, generating a parameter packet by means of a link layer on the basis of the monitoring parameters, and converting the parameter packet into a first carrier signal by means of a physical layer, so as to load the first carrier signal on the pole and transmit the first carrier signal to a power supply bus. The present application can use the carrier communication unit to quickly and timely send a carrier signal with the monitoring parameters, thereby reducing the possibility of an accident caused by battery issues and improving the monitoring efficiency of the battery cell.

BATTERY CELL, BATTERY, AND ELECTRICAL APPARATUS

Resumen de: WO2025145657A1

A battery cell (102), a battery (100), and an electrical apparatus, belonging to the technical field of batteries. The battery cell (102) comprises: a first housing wall (11), electrode columns (2), and sealing insulation assemblies (3). The first housing wall (11) is provided with mounting holes (12). The electrode columns (2) comprise penetrating portions (21) arranged in the mounting holes (12) in a penetrating manner, and first abutting portions (22) and second abutting portions (23) connected to the penetrating portions (21) and abutting against two sides of the first housing wall (11). The first abutting portions (22) abut against the first housing wall (11) by means of riveting. The sealing insulation assemblies (3) are insulated and fitted between the electrode columns (2) and the first housing wall (11), and comprise first insulating pieces (31) at least partially arranged between the first abutting portions (22) and the first housing wall (11), and second insulating pieces (32) at least partially arranged between the second abutting portions (23) and the first housing wall (11). The elastic modulus of the first insulating pieces (31) is less than or equal to the elastic modulus of the second insulating pieces (32).

STRIP MATERIAL DETECTION DEVICE, WINDING APPARATUS, AND METHOD FOR MANUFACTURING ELECTRODE ASSEMBLY

Resumen de: WO2025145632A1

Provided in the present application are a strip material detection device, a winding apparatus, and a method for manufacturing an electrode assembly. The strip material detection device comprises a mounting frame, a first roller, a second roller, and a detection component, wherein the first roller is connected to the mounting frame and is rotatable about a first axis. The second roller is connected to the mounting frame and is rotatable about a second axis; the first axis is parallel to the second axis; a passage for a strip material to pass through is formed between the first roller and the second roller; and the second roller is movable close to or away from the first roller in a first direction. The detection component is configured to detect the displacement of the second roller in the first direction.

ENERGY STORAGE SYSTEM AND PROTECTION UNIT

Resumen de: US2025226675A1

An energy storage system includes a housing, a bank including a plurality of energy storage devices connected in series, and a protection unit to open and close a power line of the bank. A plurality of the banks are housed in the housing, and a plurality of the protection units respectively provided for the plurality of banks are housed in the housing.

METACAPACITORS AND POWER-ELECTRONIC CONVERTERS FOR POWER-ELECTRONIC SYSTEMS

Resumen de: US2025226756A1

A method of fabricating an electrical-energy storage device includes: depositing a first conductive layer onto a substrate; spin-coating a photoresist layer onto the conductive layer; applying a mask to the photoresist layer and exposing the masked photoresist layer under a light, the mask having a predefined pattern; removing the un-exposed part of the photoresist layer with development; depositing a first conductive material to the photoresist layer for allowing the conductive material to fill the removed part of the photoresist layer; dissolving the photoresist layer for forming a first set of conductive structures; depositing a layer of a dielectric material to the deposited first conductive material for forming a dielectric layer thereon; depositing a second conductive material to the dielectric layer forming a second set of structures, and electroplating a third conductive material to the second set of structures.

APPARATUS AND METHOD FOR DISCHARGING BATTERY

Resumen de: US2025226674A1

The present disclosure relates to an apparatus and a method for discharging a battery. An apparatus for discharging a battery according to embodiments includes a discharger, a first switch connected between the discharger and the battery, and a charge pump that includes a first capacitor, that is configured to charge the first capacitor with an electric energy charged in the battery when a first control signal indicating a normal state is input, and that is configured to connect the discharger and the battery by operating the first switch with an electric energy charged in the first capacitor when a second control signal indicating an occurrence of a fire event is input.

BATTERY CELL ASSEMBLY AND ELECTRIC DEVICE

Resumen de: US2025226541A1

A battery cell assembly includes a cell assembly, a holder, and N conducting sheets. The cell assembly includes M cells stacked along a first direction. Each cell includes a cell housing, an electrode terminal, and an electrode assembly disposed within the cell housing. The electrode terminal is connected to the electrode assembly and extends out of the cell housing. A welding part is provided on a portion of the electrode terminal located outside the cell housing. Along the first direction, a projection of the welding part of the each cell is spaced apart from a projection of the welding part of an adjacent cell. The N conducting sheets are spaced apart within the holder. At least a portion of each conducting sheet is exposed through the holder. The electrode terminals pass through the holder. The welding part is connected to the portion of the conducting sheet exposed through the holder.

BATTERY AND ELECTRIC DEVICE

Resumen de: WO2025145605A1

Provided in the embodiments of the present application are a battery and an electric device. The battery comprises a battery cell group, a plurality of thermal management components, a first connecting pipe, and a first protective mechanism, wherein the battery cell group comprises a plurality of battery cells. The plurality of thermal management components are arranged spaced apart from each other in a first direction, and each thermal management component has a first end and a second end in a second direction. At least one battery cell is arranged between two adjacent thermal management components, and the first direction is perpendicular to the second direction. The first connecting pipe is located on a side of the battery cell group in the second direction, and connects the first ends of two adjacent thermal management components. The first protective mechanism is configured to shield the first connecting pipe, so as to limit the contact between emissions from the battery cell and the first connecting pipe. The probability of the emissions melting the first connecting pipe is reduced, and the probability of fluid leakage from the first connecting pipe caused by the emissions discharged from the battery cell is also reduced, thereby improving the reliability of the battery when in use.

BATTERY AND ELECTRICAL APPARATUS

Resumen de: WO2025145336A1

A battery (1001) and an electrical apparatus. The battery (1001) comprises: a case (200), comprising first borders (2021) located at both ends in the width direction, each first border (2021) extending in the length direction of the case (200); and a plurality of cells (100), mounted inside the case (200), the length direction of each cell (100) being parallel to the length direction of the case (200), the cells (100) adjacent to each first border (2021) abutting against the first border (2021), and each first border (2021) being provided with a mounting beam (23). The length direction of the cells (100) is parallel to the length direction of the case (200), each first border (2021) abuts against the adjacent cells (100), and the first borders (2021) are located at the ends of the case (200) in the width direction, such that each first border (2021) abuts against large surfaces of the adjacent cells (100). Moreover, the first borders (2021) being provided with the mounting beams (23) facilitates mounting and use of the battery (1001), and the mounting beams (23) can provide constraining forces, so as to resist the expansion deformation of the cells (100).

HOUSING ASSEMBLY, BATTERY CELL, BATTERY, AND ELECTRICAL DEVICE

Resumen de: WO2025145594A1

Disclosed are a housing assembly (21), a battery cell (20), a battery (100), and an electrical device. The housing assembly (21) comprises a housing (211) and a terminal (212), wherein a hole (211a) is provided in the housing (211); and the terminal (212) comprises a main body portion (201), a connecting portion (202), and a bent portion (203), the main body portion (201) being located inside the housing (211), the connecting portion (202) passing through the hole (211a) and connecting the main body portion (201) and the bent portion (203), the bent portion (203) being located outside the housing (211), the bent portion (203) having an end portion close to the connecting portion (202), and a recess (212a) being provided on the side of the end portion close to the housing (211).

BATTERY AND ELECTRIC DEVICE

Resumen de: WO2025145296A1

Disclosed in the present application are a battery and an electric device. The battery comprises a battery cell and at least one cooling component. The battery cell comprises a casing, at least one electrode assembly and at least one buffer member, wherein the electrode assembly and the buffer member are arranged in the casing; the buffer member is arranged on at least part of the surface of the electrode assembly and/or inside the electrode assembly; and the at least one electrode assembly and the at least one buffer member are stacked in a first direction. The cooling component is arranged on at least one side of the battery cell in the first direction.

BATTERY CELL, BATTERY AND ELECTRICAL DEVICE

Resumen de: US2025226521A1

The present application provides a battery cell, a battery and an electrical device, wherein the battery cell comprises: a case having an accommodating space and an opening communicated with the accommodating space; an electrode assembly accommodated in the storage space; an end cover closing the opening; an electrode terminal provided in the case, the electrode terminal being electrically connected to the electrode assembly; and a pressure relief portion provided in the end cover, the pressure relief portion being used to release an internal pressure of the case. In the technical solution of the present application, the electrode terminal and the pressure relief portion of the battery cell are disposed on different surfaces, which can reduce the risk of the conductive discharge discharged through the pressure relief portion being connected to the electrode terminal and causing a short-circuit of the electrode terminal when the battery cell is in thermal runaway.

ELECTROCHEMICAL APPARATUS AND ELECTRIC DEVICE

Resumen de: US2025226550A1

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%.

SECONDARY BATTERY MODULE AND SECONDARY BATTERY PACK INCLUDING THE SAME

Resumen de: US2025226517A1

The present invention relates to a secondary battery module, a secondary battery pack including the same, and a secondary battery module inspection device for inspecting the secondary battery module, and more particularly, to a secondary battery module including a plurality of secondary batteries, a secondary battery pack including the same, and a secondary battery module inspection device for inspecting the secondary battery module. The present invention provides a secondary battery module including: a plurality of secondary batteries arranged in parallel to each other; and a plurality of buffer pads inserted to be adjacent to the secondary batteries along an arrangement direction of the plurality of secondary batteries, wherein the plurality of buffer pads are provided to have thicknesses different from each other and are selectively inserted according to thicknesses of the adjacent secondary batteries.

Battery Assembly

Resumen de: US2025226516A1

A battery assembly includes a base plate; a resin layer disposed on an upper surface of the base plate; a battery cell located above the resin layer; and an insulating sheet located between the battery cell and the resin layer, the insulating sheet having a score line.

BATTERY AND ELECTRICAL DEVICE

Resumen de: US2025226525A1

Provided are a battery and an electrical device. The battery includes a battery cell and a functional component. A side of the battery cell along a first direction is provided with a pressure relief mechanism. The functional component is located on one side of the battery cell where the pressure relief mechanism is provided, and the functional component includes a thermal management component and a protective component. The thermal management component is attached to the battery cell, and the thermal management component is configured to regulate a temperature of the battery cell. A protective component is connected to the thermal management component and covers at least a portion of the pressure relief mechanism.

SYSTEM AND METHOD FOR BATTERY POUCH CELL DISASSEMBLY

Resumen de: WO2025146588A2

A system, method, and apparatus for disassembling a pouch cell of a battery is provided that allows for the pouch cell to be loaded onto a disassembly apparatus, the pouch cell to be cut, the cell to be torn down, the plates to be imaged and observed for defects, and the disassembled materials separated for recycling. Because the disassembly can be carried out within the apparatus and performed automatically, the efficiency of the disassembly is increased and the health and safety risks for operators are reduced. For example, hazardous gases or other toxic materials are isolated from the operators, who can remain outside the apparatus. In addition, images of disassembled plates are taken, recorded, and stored, which reduces inconsistencies and operator error. The information recorded for each disassembled cell may also be sent to or made accessible to other areas of an organization or other entities.

A BATTERY CELL DISMANTLING SYSTEM

Resumen de: WO2025146566A1

There is provided a battery cell dismantling system comprising: a battery carrier, configured to house a battery; a transportation means configured to carry the battery carrier through the system in a first direction; a first cutting station comprising first and second cutting tools, the first cutting tool being located on a first side of the transportation means and the second cutting tool being located on a second side of the transportation means, each of the first and second cutting tools being configured to apply a cutting force in a second direction that opposes the first direction; and an extraction station comprising: a pressing means that is moveable in a third direction on the first side of the transportation means and configured to apply a pressing force to a first side of the battery cell, wherein the third direction is perpendicular to the first direction; and an extraction means located on a second side of the transportation means and being configured to extract material from a second side of the battery cell.

BATTERY CELL, BATTERY AND ELECTRIC DEVICE

Resumen de: WO2025146095A1

The present application relates to the technical field of batteries, and discloses a battery cell, a battery and an electric device. The battery cell comprises an electrode assembly and a heat shrink film. The electrode assembly comprises a main body and tabs. The main body has two end surfaces arranged opposite to each other in a first direction and a circumferential surface connecting the two end surfaces, and the tabs are arranged on one of the end surfaces. The heat shrink film covers the circumferential surface in a circumferential direction of the main body, the heat shrink film has a head end and a tail end in the circumferential direction, and the head end and the tail end are connected. By providing the heat shrink film, the manufacturing efficiency of the battery cell can be improved to a certain extent, so that the manufacturing efficiency of the battery is improved.

NEGATIVE ELECTRODE SHEET AND PREPARATION METHOD THEREFOR, BATTERY, AND ELECTRIC DEVICE

Resumen de: WO2025146168A1

A negative electrode sheet (10) and a preparation method therefor, a battery, and an electric device. The negative electrode sheet (10) comprises a negative electrode current collector (100) and a negative electrode active material layer (200); the negative electrode active material layer (200) is provided on at least one side of the negative electrode current collector (100), the negative electrode active material layer (200) comprises a thinned region (21), and the thinned region (21) comprises first dielectric material particles; the average particle size by volume Dv50 of the first dielectric material particles is D1, D1 being 400 nm-2000 nm; and with respect to the total mass of the thinned region (21), the proportion of the first dielectric material particles is W1, W1 being 0.5%-10%.

BATTERY CELL, BATTERY AND ELECTRICAL APPARATUS

Resumen de: WO2025145297A1

A battery cell (100), a battery (1000), and an electrical apparatus (2000). The battery cell (100) comprises: a casing (10); an electrode assembly (20) provided in the casing (10), the electrode assembly (20) comprising electrode sheets (21) and separators (22), and the electrode sheets (21) and the separators (22) being stacked and/or wound to form the electrode assembly (20); and a buffer member (30) provided in the casing (10), the buffer member (30) being provided on at least part of the surface of the electrode assembly (20) and/or in the electrode assembly (20), and the compression ratio of the buffer member (30) being greater than the compression ratio of the separators (22) under the same pressure.

COMPOSITE LITHIUM IRON PHOSPHATE POSITIVE ELECTRODE MATERIAL, PREPARATION METHOD THEREFOR, AND USE THEREOF

Resumen de: WO2025145414A1

A composite lithium iron phosphate positive electrode material, a preparation method therefor, and the use thereof. The preparation method comprises the following steps: (1) mixing an iron source and a phosphorus source with a solvent to obtain a mixed solution, adjusting the pH value of the mixed solution to a first pH value and carrying out a first reaction, and then adjusting the pH value to a second pH value and carrying out a second reaction, so as to obtain composite iron phosphate containing ferric hydroxide; (2) sintering the composite iron phosphate, mixing same with a lithium source, and calcining same to obtain modified lithium iron phosphate; and (3) mixing the modified lithium iron phosphate with a silver salt solution, and carrying out a replacement reaction, so as to obtain the composite lithium iron phosphate positive electrode material. The method fully uses ferric hydroxide generated during the precipitation process of iron phosphate, so that no impurity removal step is required, and silver can be uniformly distributed in the ferric phosphate product, so as to form a uniformly dispersed conductive network, thus solving the problems of agglomeration and non-uniform dispersion.

BATTERY CELL, BATTERY AND ELECTRIC DEVICE

Resumen de: WO2025145294A1

A battery cell (100), a battery (1000) and an electric device (2000). The battery cell (100) comprises: a casing (10); an electrode assembly (20), which is arranged in the casing (10), wherein the electrode assembly (20) comprises an electrode sheet (21) and a separator (22), the electrode sheet (21) and the separator (22) being stacked and then wound to form the electrode assembly (20), and in the direction of winding of the electrode assembly (20), the electrode assembly (20) is provided with a winding tail end (20a); and a buffer member (30), which is arranged in the casing (10), wherein in the direction of stacking of the electrode sheet (21) and the separator (22), the buffer member (30) covers at least part of the winding tail end (20a).

METHODS FOR PURIFYING AND RECYCLING LEAD FROM SPENT LEAD-ACID BATTERIES

Resumen de: US2025226473A1

The present disclosure relates to methods by which lead from spent lead-acid batteries may be extracted, purified, and used in the construction of new lead-acid batteries. A method includes: (A) forming a mixture including a carboxylate source and a lead-bearing material; (B) generating a first lead salt precipitate in the mixture as the carboxylate source reacts with the lead-bearing material; (C) increasing the pH of the mixture to dissolve the first lead salt precipitate; (D) isolating a liquid component of the mixture from one or more insoluble components of the mixture; (E) decreasing the pH of the liquid component of the mixture to generate a second lead salt precipitate; and (F) isolating the second lead salt precipitate from the liquid component of the mixture. Thereafter, the isolated lead salt precipitate may be converted to leady oxide for use in the manufacture of new lead-acid batteries.

Insulating Layer Composition for Lithium Secondary Battery and Lithium Secondary Battery Comprising Same

Resumen de: US2025226536A1

An insulation-layer forming composition for a lithium secondary battery, the composition not including carboxymethylcellulose, and comprising a conjugated diene copolymer as a binder polymer; a non-aqueous organic solvent; and an emulsifier. A gel content of the conjugated diene copolymer is 70 wt % or more with respect to a total weight of the conjugated diene copolymer, and a content of the emulsifier is 0.3 wt % or more with respect to the total weight of the conjugated diene copolymer. A cathode comprising the insulation-layer forming composition, a lithium secondary battery including the cathode, and a method of manufacturing the cathode are also provided.

ELECTROCHEMICAL APPARATUS AND ELECTRICAL DEVICE

Resumen de: US2025226548A1

An 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.

Battery Pack

Resumen de: US2025226498A1

Disclosed herein relates to a battery pack for accommodating battery modules. More specifically, the battery pack of the present invention includes a pack case including a module area where the battery module is seated, wherein the pack case includes: a base plate; a side wall coupled along the perimeter of the base plate; and a support wall coupled to an inner surface of the side wall, wherein the support wall includes a coupling part protruding in a ribbed shape on one side opposite the side wall, and the side wall includes an insertion groove recessed for insertion of a coupling part of the support wall on the inside.

BATTERY PACK

Resumen de: US2025226515A1

A housing is divided into a first case and a second case. The first case and the second case are joined at a position where the first case and the second case overlap each other, and include at the position: a first engagement mechanism in which the first case includes a first protrusion protruding in first direction DA, and the second case includes a second recess formed at a position corresponding to the first protrusion; and a second engagement mechanism in which the first case includes a first recess provided at a position separated from the first protrusion and the second case includes a second protrusion formed at a position separated from the second recess, the position corresponding to the first recess when the second case is joined to the first case, and the second protrusion protruding in second direction DB opposite to first direction DA.

Unit Cells Accommodating Expansion of Electrode Active Material

Resumen de: US2025226534A1

Unit cells for use in electrical current conductance, the electrode structure comprising an electrode separated from a counter electrode by a separator, the unit cell being configured to accommodate expansion of electrode active material during a second use of the device e.g., at least in part by using spacer structures.

BATTERY THERMAL MANAGEMENT SYSTEM, BATTERY PACK AND VEHICLE

Resumen de: US2025226482A1

A battery thermal management system includes a battery and a pulse charging and discharging apparatus, wherein the battery includes a pole and an electrically conductive housing, which is arranged at the periphery of the pole; the pulse charging and discharging apparatus is electrically connected to the battery, and is used for performing pulse charging and discharging on the battery to generate a varying magnetic field; and the electrically conductive housing is located within the varying magnetic field, and is used for generating an induced current and heating the pole.

COMPOSITE MATERIAL AND PREPARATION METHOD THEREFOR, POSITIVE ELECTRODE SHEET, SECONDARY BATTERY AND ELECTRIC DEVICE

Resumen de: WO2025145960A1

The present invention belongs to the technical field of batteries. Disclosed are a composite material and a preparation method therefor, a positive electrode sheet, a secondary battery and an electric device. The composite material comprises a lithium-containing compound, a catalyst and a conductive agent, wherein the lithium-containing compound comprises lithium, carbon and oxygen; and the catalyst comprises one or more of an oxide of a transition metal, a carbide of a transition metal, a nitride of a transition metal or a phosphide of a transition metal. The total pore volume V of the composite material satisfies: 0.02 cm3/g≤V≤1 cm3/g; and the average pore diameter D of the composite material satisfies: 2 nm≤D≤50 nm. The composite material can improve the capacity of a battery.

ELECTROCHEMICAL APPARATUS AND ELECTRONIC APPARATUS

Resumen de: WO2025145926A1

The present application provides an electrochemical apparatus and an electronic apparatus. The electrochemical apparatus comprises an electrolyte, a separator, a positive electrode sheet and a negative electrode sheet; the electrolyte comprises a compound represented by formula (I); based on the mass of the electrolyte, the mass percentage content of the compound represented by formula (I) is A%, where 30≤A≤80; the separator comprises a porous substrate and a porous coating arranged on at least one side of the porous substrate, the porosity of the separator being 25%-35%. The present application regulates and controls the structure of the separator and components of the electrolyte and combines same, such that the OCPD cycle performance of the electrochemical apparatus is improved by means of the synergy of the separator and the electrolyte.

FORMATION METHOD FOR METAL BATTERY, METAL BATTERY AND ELECTRICAL APPARATUS

Resumen de: WO2025145761A1

The present application relates to a formation method for a metal battery, a metal battery and an electrical apparatus. The formation method comprises: successively charging a battery cell n times, n≥2, the charging being in a negative pressure environment, and as the number of charging times increases, used charging rates increasing progressively and the temperatures of temperature conditions for the charging decreasing progressively. Using the formation method can remarkably reduce gas produced by metal batteries in storage and usage processes so as to ameliorate the bulging problem of battery cell pouches, and moreover have certain improvement effects on the cycle performance of the batteries.

ACCUMULATOR CELL HOUSING AND BATTERY OR BATTERY MODULE FORMED FROM MULTIPLE SECONDARY CELLS ON THE BASIS OF A UNIFORM ACCUMULATOR CELL HOUSING DESIGN

Resumen de: US2025226491A1

The invention relates to an accumulator cell housing and a battery or a battery cell module formed from multiple secondary cells on the basis of a uniform accumulator cell housing design. Here, the starting point is a beaker-like structure with a beaker base, a beaker wall (1) and a beaker closure (3) opposite the beaker base. The chemical-physical means necessary for storing electrical energy can be introduced in the beaker cavity. Electrical connections are furthermore provided at least in the region of the beaker closure. Both in or on the beaker base and in or on the beaker closure there is provided a crenellation or crown structure which in each case has multiple spaced-apart protrusions (5, 6). A sandwich structure formation for creating a battery module is produced via a connection of base and cover plates (9, 10) with use of the previously mentioned protrusions of the respective crenellation or crown structures, and, in this regard, besides the improved mechanical stability, an optimised, symmetrical or uniform heat dissipation is possible.

CALIBRATION FREE ANALYTE DETECTION DEVICE

Resumen de: US2025221644A1

A calibration free analyte detection device (102, 202, 302) is disclosed. At least one predetermined pair-data set composed of the first parameter value and the second parameter value and the predetermined calibration function based on the time parameter are pre stored in the memory. After a sensor (1022, 2022, 3022) penetrates into the user's skin to obtain the first parameter value, the processor calls the predetermined pair-data set and the predetermined calibration function from the memory and obtains the second parameter value based on the first parameter value by index, the predetermined pair-data set is adjusted through the predetermined calibration function for the next detection and retrieval. The predetermined pair-data set is adjusted with the use time, which reduces the error of the second parameter value and improves the reliability of the analyte detection device (102, 202, 302).

COMMUNICATION SYSTEM OF ANALYTE DETECTION DEVICE

Resumen de: US2025221640A1

The invention discloses the communication system of analyte detection device, which comprises the analyte detection device and the remote equipment. The analyte detection device transmits signals, and the remote equipment is used to search and identify nearby signals, establish the communication connection with the analyte detection device and perform data interaction. The data interaction mode can be adjusted according to the actual use situation, and the battery energy consumption is reduced while transmitting the analyte parameter information, it is conducive to the long-time work of the system and improves the user experience.

FLAME-RETARDANT RUBBER COMPOSITION AND GASKET

Resumen de: US2025223422A1

Provided is a flame-retardant rubber composition including an ethylene-α-olefin-non-conjugated diene copolymer, aluminum hydroxide, an alkyl-modified silane coupling agent, and a hydrocarbon-based plasticizer. An amount of the aluminum hydroxide is 60 mass % or more of the flame-retardant rubber composition, a total amount of the alkyl-modified silane coupling agent and the hydrocarbon-based plasticizer is 8 mass % or less of the flame-retardant rubber composition, and an amount of the alkyl-modified silane coupling agent is 5 mass % or more of the aluminum hydroxide. The flame-retardant rubber composition has excellent flame retardancy, physical properties suitable as a sealing material, and low environmental impact.

ELECTROCHEMICAL APPARATUS AND ELECTRIC DEVICE

Resumen de: US2025226559A1

An electrochemical apparatus includes a housing, a conductive member, an electrode assembly, and an insulating member. The housing has a first wall, and the first wall is provided with a first through hole. The conductive member covers the first through hole. The electrode assembly is accommodated in the housing and is electrically connected to the conductive member. The insulating member is arranged between the conductive member and the first wall, the insulating member has a second through hole, and along a first direction, at least a part of a projection of the conductive member is located within both the first through hole and a second through hole. A convex portion is disposed between a surface of the first wall facing the conductive member and a surface of the conductive member facing the first wall

INSULATOR FOR TABLESS JELLYROLL BATTERY CELLS

Resumen de: US2025226557A1

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.

BATTERY CELL, BATTERY, AND ELECTRICAL DEVICE

Resumen de: US2025226546A1

A battery cell, a battery, and an electrical device are disclosed. The battery cell includes an electrode assembly, a shell, an electrode terminal, and a current collecting member. The electrode assembly has a tab. The shell accommodates the electrode assembly. The electrode terminal is disposed at one end of the shell in a first direction. The current collecting member is provided with a hollow region, and the hollow region divides the current collecting member into a first connection region and a second connection region located on two sides of the hollow region. The first connection region is connected to the tab, and the second connection region is connected to the electrode terminal. When the electrode terminal is subjected to stress, the hollow region enables the second connection region to deform relative to the first connection region, so the stress is not easily transmitted to the first connection region.

CELL SORTING AND BATTERY MODULE ASSEMBLY BASED ON CELL INTERNAL RESISTANCE

Resumen de: US2025226513A1

A method for assembling a plurality of cells into a battery module employs a controller having a processor and tangible, non-transitory memory. The method includes positioning the plurality of cells in a testing apparatus for pre-assembly testing. The testing apparatus is adapted to house a selected group of the plurality of cells at a time. The method includes performing a pulse power test on the selected group, via the testing apparatus. The method includes receiving respective voltage trace data based in part on the pulse power test. A respective internal resistance parameter of the plurality of cells is tracked based in part on the respective voltage trace data, via the controller. The method includes arranging the plurality of cells into sorted groups based in part on the respective internal resistance parameter and assembling the sorted groups in a predefined pattern into the battery module.

LAMINATED BATTERY CELL, AND PREPARATION METHOD AND PREPARATION SYSTEM FOR LAMINATED BATTERY CELL

Resumen de: WO2025145796A1

The present invention provides a laminated battery cell, and a preparation method and preparation system for the laminated battery cell. The laminated battery cell comprises: a composite unit; and at least two single negative electrode sheets, the at least two single negative electrode sheets being spaced apart from each other in the thickness direction of the laminated battery cell, and one composite unit is provided between every two single negative electrode sheets, thereby forming a laminated cell structure. The composite unit comprises a negative electrode sheet, a first positive electrode sheet, a second positive electrode sheet, and a plurality of separator sections; in the thickness direction, the first positive electrode sheet and the second positive electrode sheet are respectively provided on two opposite sides of the negative electrode sheet; the plurality of separator sections are sequentially provided at intervals in the thickness direction; and the first positive electrode sheet or the second positive electrode sheet or the negative electrode sheet is provided between two adjacent separator sections. The technical solution of the present invention solves the problem in the prior art of low preparation efficiency or material utilization rate of a laminated battery cell.

BATTERY MANAGEMENT ASSEMBLY, BATTERY PACK, AND VEHICLE

Resumen de: WO2025145956A1

The present application relates to a battery management assembly, a battery pack, and a vehicle. The battery management assembly comprises a plurality of second circuit modules and a plurality of first circuit modules. The battery management assembly comprises: a first substrate, wherein the first substrate is provided with a plurality of first mounting positions for mounting the first circuit modules, at least two of the plurality of first mounting positions are connected to each other, and the plurality of first circuit modules are mounted on the plurality of first mounting positions; and a second substrate, wherein the second substrate is provided with a plurality of second mounting positions for mounting the second circuit modules, the plurality of second circuit modules are mounted on the plurality of second mounting positions, and the first substrate and the second substrate are electrically connected. By means of the technical solution of the present application, the electrical connection reliability is greatly improved, automatic production can be implemented, and production costs are greatly reduced.

BATTERY AND CONTROL APPARATUS

Resumen de: WO2025145789A1

Provided in the embodiments of the present application are a battery and a control apparatus that allow an electrical device to be used normally when any battery module in the battery has an anomaly or is about to have an anomaly. The battery comprises a plurality of battery modules; and an on-off assembly which comprises a first on-off assembly, the first on-off assembly being connected to a first battery module among the plurality of battery modules. When a battery state parameter of the first battery module reaches a threshold value, the first on-off assembly is configured to cut off the connection to the first battery module and make a connection to the other battery modules among the plurality of battery modules.

WIND POWER GENERATION APPARATUS AND METHOD

Resumen de: US2025223943A1

The wind power generation apparatus has an acquisition unit, a wind turbine, a generator, an electric power storage unit and a controller. The acquisition unit is used acquires a wind power value. The controller selects, according to the wind power value, the wind turbine to perform the following tasks: when the wind power value is between a first threshold value and a second threshold value, the wind turbine only drives the generator to generate power; when the wind power value is greater than the second threshold value, the wind turbine simultaneously drives the generator and the electric power storage unit to charge; when the wind power value is less than the first threshold value, the wind turbine only drives the electric power storage unit to charge or drives the electric power storage unit to output induced electric energy to the outside.

HIGH VOLTAGE DISTRIBUTION BOX

Resumen de: US2025222885A1

A pack-agnostic high voltage distribution apparatus can include an electrical component. The electrical component can be configured to control a first battery pack and a second battery pack different than the first battery pack.

NON-FLAMMABLE, COOLING COMPOSITION

Resumen de: US2025223481A1

The present invention concerns the use of a composition including at least one hydrocarbon fluid having an initial boiling point of at least 30° C., or at least one base oil; perfluorooctyl bromide, for cooling in a mobile or stationary system and/or for preventing or delaying the spread of thermal runaway in a mobile or stationary system.

CARBON NANOTUBE DISPERSION LIQUID, ELECTRODE COATING MATERIAL USING SAME, ELECTRODE, AND NONAQUEOUS ELECTROLYTE SECONDARY BATTERY

Resumen de: US2025223169A1

Provided is a carbon nanotube dispersion liquid that exhibits good dispersion stability of single-walled carbon nanotubes.A carbon nanotube dispersion liquid according to an embodiment includes single-walled carbon nanotubes, carboxymethyl cellulose and/or a salt thereof, and water, in which a content of the single-walled carbon nanotubes is 0.47% to 1.00% by mass. The carboxymethyl cellulose and/or the salt thereof includes at least one having a degree of etherification of 0.65 to 0.85 and a weight-average molecular weight of 120,000 to 250,000. A content of the carboxymethyl cellulose and/or the salt thereof is 120 to 220 parts by mass relative to 100 parts by mass of the single-walled carbon nanotubes.

NEGATIVE ELECTRODE MATERIAL AND ELECTROCHEMICAL APPARATUS

Resumen de: US2025223166A1

A negative electrode material including 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%

SECONDARY BATTERY

Resumen de: US2025226547A1

A secondary battery is provided and includes a battery device, an external terminal, and a lead. The battery device includes a first electrode and a second electrode that are stacked with a separator interposed between the first electrode and the second electrode, and are wound around a winding axis extending in a first direction. The lead includes two opposed edges, and couples the first electrode and the external coupling terminal to each other. The first electrode includes a first electrode current collector and a first electrode active material layer. The first electrode current collector includes a first edge. The first electrode active material layer covers a portion of the first electrode current collector. The lead is joined to the first electrode current collector in a state where the two opposed edges are inclined relative to the first edge.

SOLID-STATE BATTERY

Resumen de: US2025226459A1

A solid-state battery having an exterior portion. The exterior portion includes an oxide ceramic containing: Li (lithium); Mg (magnesium); and one or more elements (M) selected from Group 4 and Group 5 elements.

ENERGY- STORAGE DEVICE AND ELECTRICITY-CONSUMPTION APPARATUS

Resumen de: US2025226545A1

An energy-storage device and an electricity-consumption apparatus are provided. The energy-storage device includes an electrode assembly, a tab, a connector, and a lower plastic assembly. One end of the tab is connected to the electrode assembly, and the tab extends in a bent manner. The connector is connected to another end of the tab. The lower plastic assembly has a first surface and a second surface opposite the first surface. The first surface faces towards the tab. The connector is located between the lower plastic assembly and the electrode assembly. An avoidance recess is defined in the first surface. The avoidance recess is located at an edge of the lower plastic assembly in a width direction of the lower plastic assembly and extends in a length direction of the lower plastic assembly.

BATTERY PACK AND POWER TOOL

Resumen de: US2025226511A1

A battery pack includes a battery housing; a battery module disposed in the battery housing, where the battery module includes multiple battery cells, and at least one of the battery cells is a solid-state battery; and a control circuit disposed in the battery housing and configured to use the battery module to supply the electric power to the power tool. The energy W of the battery pack and the volume V1 of the battery pack satisfy the following: when the energy W is greater than or equal to 200 Wh, the volume V1 is less than or equal to 400 cm3; or when the energy W is greater than or equal to 300 Wh, the volume V1 is less than or equal to 800 cm3; or when the energy W is greater than or equal to 700 Wh, the volume V1 is less than or equal to 2500 cm3.

BATTERY PACK

Resumen de: US2025226543A1

A battery pack includes a plurality of battery modules including a first battery module and a second battery module; and a busbar electrically connecting the first battery module and the second battery module, wherein the first battery module or the second battery module includes a vent hole in a portion corresponding to a portion of the busbar.

RECHARGEABLE BATTERY MODULE

Resumen de: US2025226553A1

A rechargeable battery module includes: a busbar holder configured to cover a plurality of battery cells; a flexible printed circuit (FPC) configured to transmit a signal corresponding to a detected temperature of at least one of the battery cells from a temperature sensor mounted on the busbar holder; a temperature sensing tab including a sensor connection portion at a first side that is connected to the temperature sensor and a cell contact portion at a second side that is coupled to the busbar holder and in contact with the one of the battery cells; and an elastic member coupled to the cell contact portion and configured to elastically pressurize the cell contact portion onto the one of the battery cells.

THERMAL MANAGEMENT COMPONENT, BATTERY, AND ELECTRIC DEVICE

Resumen de: WO2025145776A1

The present application discloses a thermal management component, a battery, and an electric device. The thermal management component comprises a heat exchange tube and a first current collector; the heat exchange tube has a first end; a first flow channel used for accommodating a heat exchange medium is formed in the first current collector; the first flow channel has a first inner surface and a second inner surface which are oppositely arranged in a first direction; the first end is inserted into the first flow channel, and the first end is attached to at least one of the first inner surface and the second inner surface. Therefore, the size of the thermal management component in the first direction can be optimized, thereby reducing the space occupied by the thermal management component in the first direction, improving the energy density of a battery using the thermal management component.

BATTERY COVER PLATE ASSEMBLY AND POWER BATTERY

Resumen de: WO2025145775A1

A battery cover plate assembly and a power battery. The battery cover plate assembly comprises a cover plate piece (1), a conductive piece (2) and a terminal (3). The cover plate piece (1) is provided with a first connecting hole (11); the conductive piece (2) is provided with a second connecting hole (21); the conductive piece (2) is mounted on the outer side of the cover plate piece (1), and the conductive piece (2) is configured such that a busbar (7) is welded thereto; a first end of the terminal (3) is folded outwards to form a first flange (31); a connecting wall (32) having a preset wall thickness is provided at a second end of the terminal (3), the inner side of the connecting wall (32) being configured to be welded to a current collector disc (8); a second flange (33) is provided on the outer edge of the connecting wall (32); after the second end of the terminal (3) successively passes through the first connecting hole (11) and the second connecting hole (21) from the inner side of the cover plate piece (1), the first flange (31) abuts against the inner wall of the cover plate piece (1); and the second flange (33) is folded outwards so as to be riveted to the side of the conductive piece (2) away from the cover plate piece (1).

BATTERY MODULE FOR SELF-BALANCING VEHICLE

Resumen de: WO2025145948A1

The present utility model relates to a battery module for a self-balancing vehicle. The battery module comprises a casing and a battery cell group mounted in the casing, wherein one end of the battery cell group is mounted on a first battery cell holder, and the other end thereof is mounted on a second battery cell holder, and an acquisition board is connected to the first battery cell holder, a charge and discharge connector cable is connected to the acquisition board, and the charge and discharge connector cable extends outwards through the casing; several integrally-formed positioning posts and snap-fit fasteners are provided on the side of the first battery cell holder that is close to the acquisition board, and downwardly-extending snap-fit posts and first mounting recesses for mounting the upper ends of the battery cell group are provided on the other side of the first battery cell holder; and insertion slots matching the snap-fit posts and second mounting recesses for mounting the lower ends of the battery cell groove are provided on the side of the second battery cell holder that is close to the battery cell group. By means of a rational configuration, the present utility model can effectively improve the space utilization rate and save the production cost, and has good structural stability, facilitates mounting and dismounting, and can meet the production and processing requirements.

Positive Electrode Active Material, and Positive Electrode and Lithium Secondary Battery Including the Same

Resumen de: US2025223192A1

A positive electrode active material includes a lithium composite metal oxide including nickel, cobalt, manganese, and aluminum. The positive electrode active material includes 85 mol % to 97 mol % of nickel, and 2 mol % to 5 mol % of cobalt, with respect to the total number of moles of metals other than lithium, and satisfies Expression (1): 0.25≤I550/I700≤0.4. In Expression (1), I700 and I550 are respectively a maximum value of a peak intensity appearing in a range of 600 ppm to 800 ppm and a maximum value of a peak intensity appearing in a range of 450 ppm to 650 ppm when a spectral analysis (peak deconvolution) is performed on a 1D NMR center band spectrum extracted from a 2D 7Li Magic Angle Turning Phase Adjusted Spinning Sideband (MATPASS) NMR spectrum. A positive electrode and a lithium secondary battery are also included

TERNARY PRECURSOR WITH HIGH TAP DENSITY AND METHOD FOR PREPARING SAME

Resumen de: US2025223194A1

Disclosed herein are a ternary precursor with a high tap density and a method for preparing same. The method comprises the following steps: (1) adding a silicon dioxide emulsion into an alkaline substrate solution to give a mixed solution; (2) adding a mixed nickel-cobalt-manganese salt solution, a precipitant, a complexing agent, and a surfactant; (3) conducting solid-liquid separation to give a solid material, and drying and crushing to give a crushed material; (4) mixing the crushed material with the alkaline substrate solution and the surfactant; (5) repeating step (2); and (6) conducting solid-liquid separation to give a solid material, and washing and drying the solid material to give the ternary precursor with a high tap density. The precursor particle prepared according to the method has a higher tap density, and can provide excellent cycle performance for the positive electrode material.

POSITIVE ELECTRODE ACTIVE MATERIALS, PREPARATION METHODS THEREOF, AND RECHARGEABLE LITHIUM BATTERIES

Resumen de: US2025223193A1

A method of preparing a positive electrode active material, and a rechargeable lithium battery including a positive electrode active material prepared therefrom are provided. The method includes adding lithium carbonate, nickel carbonate, and cobalt carbonate to an aqueous solvent and mixing the lithium carbonate, the nickel carbonate, the cobalt carbonate, and the aqueous solvent to prepare a raw material mixture, wet-pulverizing the raw material mixture, spray-drying the pulverized raw material mixture to obtain a positive electrode active material precursor mixture, and subjecting the positive electrode active material precursor mixture to heat treatment to obtain a positive electrode active material in a form of single particles and including lithium nickel-cobalt-based composite oxide.

POSITIVE ELECTRODE ACTIVE MATERIALS, PREPARATION METHODS THEREOF, POSITIVE ELECTRODES, AND RECHARGEABLE LITHIUM BATTERIES

Resumen de: US2025223191A1

A positive electrode active material for rechargeable lithium batteries includes: a first positive electrode active material including a first lithium nickel-based composite oxide and being in a form of secondary particles having an average particle diameter (D50) of about 10 μm to about 25 μm; a second positive electrode active material including a second lithium nickel-based composite oxide and being in a form of secondary particles having an average particle diameter (D50) of about 0.5 μm to about 8 μm; and a third positive electrode active material including a third lithium nickel-based composite oxide and being in a form of secondary particles including a plurality of primary particles, wherein an average particle diameter (D50) of the secondary particles is about 0.5 μm to about 8 μm, and the primary particles constituting the secondary particles of the third positive electrode active material are needle-shaped.

COMPOSITE POSITIVE ELECTRODE MATERIAL, PREPARATION METHOD THEREFOR, POSITIVE ELECTRODE SHEET, SECONDARY BATTERY, AND ELECTRIC DEVICE<u />

Resumen de: WO2025145722A1

A composite positive electrode material, a preparation method therefor, a positive electrode sheet, a secondary battery, and an electric device are provided. The preparation method comprises: according to a preset proportion, mixing a lithium source, a phosphorus source, an iron source, a carbon source and a carbon graphitization catalyst with a solvent to form a mixed slurry; grinding and drying the mixed slurry to obtain a mixed dry substance; and sintering the mixed dry substance to obtain a composite positive electrode material, wherein the sintering temperature is 750 ̊C-840 ̊C.

SOLID-STATE ELECTROLYTE PARTICLE AND PREPARATION METHOD THEREFOR, SOLID-STATE ELECTROLYTE, SEMI-SOLID-STATE ELECTROLYTE, POSITIVE ELECTRODE, BATTERY, AND ELECTRIC DEVICE

Resumen de: WO2025145714A1

Provided is a solid-state electrolyte particle, comprising a compound represented by the following general formula: Lia(Mb)XcX'd, wherein M is a metal element, X is selected as Cl, X' comprises one or more of F ion, I ion, Br ion, N ion, P ion, S ion, CN-, oxygen-containing anion, and pseudohalide anion, 0.5

BATTERY CELL AND BATTERY PACK

Resumen de: WO2025145762A1

Disclosed in the present application are a battery cell and a battery pack. The battery cell comprises a jelly roll, wherein the jelly roll comprises a wound body and a tab bundle, the tab bundle comprising a converging portion and a dispersing portion arranged between the converging portion and the wound body; and the minimum distance between the end of the converging portion that is close to the dispersing portion and a side of the jelly roll in a first direction is d mm, and the average dimension of the wound body in the first direction is D, meeting 0

PROCESS FOR MAKING A DOPED CATHODE ACTIVE MATERIAL

Resumen de: US2025223188A1

Process for the manufacture of a fluoride doped cathode active material wherein said process comprises the steps of (a) providing a particulate oxide or (oxy)hydroxide or carbonate of TM wherein TM comprises nickel and manganese and wherein at least 50 mol-% of TM is manganese, wherein said particulate oxide or (oxy)hydroxide has an average particle diameter (D50) in the range of from 1 to 16 pm, (b) providing a source of lithium that contains 0.01 to 2.5 up by weight of fluoride, uniformly dispersed within said source of lithium, (c) mixing said oxide or (oxy)hydroxide or carbonate of TM with said fluoride-containing source of lithium and, optionally, with additional source of lithium containing less fluoride, and, optionally, with one or more dopants based on at least one metal other than lithium, (d) treating the mixture obtained from step (c) thermally.

KITCHEN APPLIANCE

Resumen de: US2025222418A1

The present disclosure relates to a kitchen appliance, including: a body, a mounting cavity being providing in the body, and the mounting cavity having a mounting opening located on a surface of the body; and a battery pack detachably connected to the body. The battery pack has a mounted state and a dismounted state. In the dismounted state, the battery pack is capable of moving into or out of the mounting cavity through the mounting opening, and after the battery pack is separated from the body, the mounting cavity is exposed to the surface of the body. In the mounted state, the battery pack is mounted in the mounting cavity, and an end of the battery pack is exposed through the mounting opening.

CARBON MATERIAL AND APPLICATION THEREOF

Resumen de: US2025223174A1

A carbon material is disclosed. The carbon material includes a plurality of stacked carbon atom layers. A proportion of interlayer turbostratic stacking of the plurality of stacked carbon atom layers in the carbon material is greater than or equal to 20%. In-plane thermal diffusivity of the carbon material is greater than or equal to 750 mm2/s. The proportion of interlayer turbostratic stacking of the carbon atom layers in the carbon material is controlled to be greater than or equal to 20% by a specific process. In this way, the carbon material has high in-plane thermal diffusivity, and can meet a heat dissipation requirement of a device with a high heat flux. The carbon material may be used in an electronic device, a heat dissipation module, a battery system, and a semiconductor structure.

SULFUR/CHALCOGENS CONFINED INTO 2D MXENES AS BATTERY CATHODES

Resumen de: US2025223186A1

A composite that includes a layered MXene comprising at least two layers, and an amount of a chalcogen confined between the at least two layers. An electrode that includes a composite that includes a layered MXene comprising at least two layers, and an amount of a chalcogen confined between the at least two layers. Power cells that include the composite. A method, comprising: with an intercalant spacer, effecting an increase in an interlayer spacing in a multilayered MXene composition; and effecting intercalation of a chalcogen into the interlayer spacing so as to confine the chalcogen between layers of the multilayered MXene composition, and optionally effecting removal of the intercalant spacer.

COOLING MODULE

Resumen de: US2025222760A1

A cooling module includes a manifold made of resin and including a plurality of housings each having a joint portion joined to each other, in which the manifold includes a plurality of channels formed across at least two of the plurality of housings, a joining surface of each joint portion of the two joined housings among the plurality of housings is an end surface of a partition wall partitioning inside of the housing into the plurality of channels and a plurality of spare chambers, and the partition wall is erected from a bottom surface of each of the two housings.

POSITIVE ELECTRODE ACTIVE MATERIAL AND PREPARATION METHOD THEREFOR, AND POSITIVE ELECTRODE SHEET, BATTERY CELL, BATTERY, AND ELECTRIC DEVICE COMPRISING SAME

Resumen de: WO2025145712A1

Disclosed in the present application are a positive electrode active material and a preparation method therefor, and a positive electrode sheet, a battery cell, a battery and an electric device comprising same. The preparation method for the positive electrode active material comprises the following steps: providing a lithium-containing phosphate active material or a precursor of a lithium-containing phosphate active material; providing an oxygen-free organic carbon source, wherein the oxygen-free organic carbon source comprises one or more of an oxygen-free polymer and an oxygen-free organic small molecule compound; and uniformly mixing the lithium-containing phosphate active material or the precursor of a lithium-containing phosphate active material with the oxygen-free organic carbon source to obtain a mixture, and then performing a sintering treatment in a protective gas atmosphere, so as to obtain a positive electrode active material. The present application makes the battery have good cycling performance and storage performance.

METHOD FOR RECOVERING VALUABLE METAL

Resumen de: EP4582573A1

To provide a method whereby a valuable metal can be efficiently recovered from a waste lithium-ion battery,the present invention is a method for recovering a valuable metal from a waste lithium-ion battery, and comprises an oxidation roasting step S3 for performing oxidation roasting treatment of a raw material that includes a waste lithium-ion battery, and a reduction step S4 for reducing a resultant oxidation roasted product in the presence of carbon. The present invention is characterized in that dust in an exhaust gas that is generated in the oxidation roasting step S3 is subjected to heat treatment at no less than 600°C but less than 1000°C to perform recovery, and at least a portion of the recovered heat-treated dust is added to material to be treated in the reduction step S4. The temperature of heat treatment of the dust is preferably no less than 900°C but less than 1000°C.

METHOD FOR RECOVERING VALUABLE METALS

Resumen de: EP4582572A1

Provided is a method for cost-effectively recovering valuable metals from waste lithium-ion batteries through a pyrometallurgical process.The present invention pertains to a method for recovering valuable metals from waste lithium-ion batteries, the method comprising: an oxidation roasting step S3 in which raw materials including waste lithium-ion batteries are subjected to an oxidation roasting treatment; and a reduction step S4 in which the obtained oxidation roasted product is reduced in the presence of carbon. In the oxidation roasting step S3, calcium carbonate is charged into a furnace together with the raw materials including waste lithium-ion batteries to control the treatment temperature of the oxidation roasting treatment.

METHOD FOR OPERATING A BATTERY PACK FOR ADJUSTING AN OPERATIONAL LIMIT FOR THE BATTERY PACK

Resumen de: EP4582304A1

The present disclosure refers to a method for operating a battery pack, is provided. Thereby a current intermediate characteristic value characterizing an aging state degree of the battery pack is determined based on 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. The invention further relates to a battery system including a battery pack, the battery system being configured for performing the disclosed method.

BATTERY TRAY AND METHOD FOR LOW PRESSURE DIE CASTING A BATTERY TRAY

Resumen de: EP4583253A1

The invention relates to a battery tray for receiving at least one battery cell serving as a drive energy storage device for an electrically driven vehicle, wherein the battery tray (2) is connectable to a body of the vehicle, the battery tray (2) comprising: a substantially circumferential frame structure (4) comprising longitudinal sides (6) and transverse sides (8) for forming a receiving area (14) for the at least one battery cell, wherein the battery tray (2) is formed in one piece from a light metal material, in particular cast in one piece from a light metal material; wherein the receiving area (14) comprises an area of at least 0.5 m², preferably of at least 0.75 m², more preferably of at least 1 m². The invention also relates to a method for low pressure die casting a battery tray.

GUIDING MOTION OF A RELATIVE MOVEMENT BETWEEN A TABLE OF A BATTERY CELL STACKING SYSTEM AND A FEEDER WITH TRACK COMPONENTS FOR A SEPARATOR FILM WEB OF THE BATTERY CELL STACKING SYSTEM

Resumen de: EP4583217A1

Die Erfindung betrifft ein Verfahren zur Bewegungsführung einer Relativbewegung zwischen einem Tisch (T) eines Batteriezellen-Stacking-Systems und einer Zuführvorrichtung (W) mit Bahnführungskomponenten für eine Separatorfolienbahn (S) des Batteriezellen-Stacking-Systems sowie eine zugehörige Steuerungsvorrichtung. Durch eine vorgeschlagene Relativbewegung mit Bewegungsanteilen in vertikaler Richtung überlagert zur Bewegung in horizontaler Richtung wird das Beschleunigungsprofil der Separatorfolienbahn derart geändert, dass Maximalwerte betragsmäßig reduziert werden.

TWO-PHASE DECOUPLING EUTECTIC GEL ELECTROLYTE, AND PREPARATION METHOD THEREFOR AND USE THEREOF

Resumen de: EP4583229A1

A biphasic eutectogel decoupling electrolyte and a preparation method and application thereof are provided. The biphasic eutectogel decoupling electrolyte includes an acidic eutectogel electrolyte and an alkaline eutectogel electrolyte arranged in order; the acidic eutectogel electrolyte includes a dispersion medium at least including an acidic deep eutectic solvent and a first metal salt, and the alkaline eutectogel electrolyte includes a dispersion medium at least including an alkaline deep eutectic solvent and a second metal salt.

METHOD FOR RECOVERING VALUABLE METALS

Resumen de: EP4582571A1

To provide a method of recovering, at low cost, valuable metals from waste lithium-ion batteries by a dry smelting process.The present invention is a method of recovering valuable metals from waste lithium-ion batteries, the method comprising: an oxidation roasting step S3 in which oxidation roasting is implemented on a raw material containing waste lithium-ion batteries; and a reduction step S4 in which the obtained oxidation-roasted matter is reduced in the presence of carbon. In the oxidation roasting step S3, an oxidant of 1.5 times or more the chemical equivalent of carbon within the raw material to be treated is introduced, and the oxidation roasting is carried out at a processing temperature selected in a range of 600°C to 900°C, so that the carbon grade of the obtained oxidation-roasted matter will be less than 1.0 mass%

POWER STORAGE DEVICE

Resumen de: EP4583300A1

A power storage device including: an electrode body including a positive electrode and a negative electrode being wound with a separator interposed therebetween; and a negative electrode current collector plate joined to the negative electrode disposed at one end in an axial direction of the electrode body. The current collector plate includes a core material joint part extending in a radiation direction of the electrode body, and including a surface facing the negative electrode joined to the negative electrode in the axial direction, and eaves parts formed on both end parts in a circumferential direction of the core material joint part, and extending toward the negative electrode in the axial direction.

ELECTRODE PLATE AND BATTERY

Resumen de: EP4583175A1

A cylindrical battery (10) which is one example of an embodiment of the present invention comprises, as an electrode plate, an electrode (14) that includes a positive electrode plate (11) and a negative electrode plate (12). The electrode plate includes: a core; a mix layer which is formed on the core; a lead which is connected to an exposed section of the core at which the surface thereof is exposed; and an identification display. In the exposed section, at least a part of the identification display is formed within a projection range in which the contour of the lead is projected.

NEGATIVE ELECTRODE FOR SECONDARY BATTERIES, SECONDARY BATTERY, AND METHOD FOR PRODUCING NEGATIVE ELECTRODE FOR SECONDARY BATTERIES

Resumen de: EP4583191A1

A negative electrode for secondary batteries according to one embodiment of the present disclosure is characterized by comprising a negative electrode current collector and a negative electrode mixture layer that is arranged on the negative electrode current collector, and is also characterized in that: the negative electrode mixture layer contains a binder and a negative electrode active material that contains a carbon material and an Si-based material; the pore size distribution of the negative electrode mixture layer as determined by a mercury intrusion method has two peak values R1 and R2; the peak value R1 is within the range of 0.5 µm to 1.5 µm; the peak value R2 is within the range of 2 µm to 10 µm; and the content of the binder contained in the negative electrode mixture layer is 4% by mass or more with respect to the total mass of the negative electrode active material.

BATTERY PACK

Resumen de: EP4583289A1

A battery pack is provided which is capable of exhausting high-pressure gas from a desired position of a case. Battery pack 100 includes: one or more secondary battery cells 1 each of which includes an outer covering can with a safety valve; outer covering case 10 that houses one or more secondary battery cells 1 and includes a portion in which exhaust hole 13 is provided for exhausting the high-pressure gas to outside when the safety valve of one of the one or more secondary battery cells 1 is opened to exhaust the high-pressure gas; and label 20 that is adhered to a peripheral edge of exhaust hole 13 of outer covering case 10 to close exhaust hole 13. Label 20 includes an adhesive surface that is adhered to outer covering case 10, and the adhesive surface includes a portion in which rupture origin part 22 is provided.

MULTIPLE PRIMARY NODES FOR WIRELESS BATTERY MANAGEMENT SYSTEM ROBUSTNESS

Resumen de: CN119698849A

A system (500) includes a first plurality of secondary devices (550), each secondary device (550) of the first plurality of secondary devices including a first wireless transmitter and a battery monitor integrated circuit (IC). The battery monitor IC is configured to obtain battery data from at least one battery cell, and the first wireless transmitter is configured to wirelessly transmit the battery data. A first primary device (502) has a second wireless transmitter wirelessly coupled to the first wireless transmitter of the first plurality of secondary devices via a first wireless network. The second master device (506) has a second wireless transmitter. The second primary device (506) is configured to detect a failure of the first primary device and, in response to detecting the failure, establish a second wireless network with the first plurality of secondary devices.

THIN GAUGE ALUMINUM-BASED CATHODES FOR LITHIUM-ION BATTERIES

Resumen de: WO2024049957A1

Described are batteries and battery components including a cathode current collector comprising a 1xxx series aluminum alloy or an 8xxx series aluminum alloy. The cathode current collector can have a thickness of from 5 μm to 12 μm. In some examples, a cathode active material layer may be disposed over at least a portion of the cathode current collector. The cathode current collector may have both surfaces that are in contact with the active material layer being matte surfaces. Battery cells including the cathode current collector may retain a specific capacity above 90% of an initial specific capacity for up to 3000 cycles or more. Additionally, the battery cells including the cathode current collector may retain an energy density above 90% of an initial energy density for up to 3000 cycles or more.

TUNGSTEN-SUBSTITUTED TITANIUM-NIOBIUM MIXED OXIDE ACTIVE MATERIAL

Resumen de: WO2024047396A1

An active material intended for the manufacture of an electrode, the active material comprising a substituted monoclinic titanium-niobium mixed oxide capable of allowing the insertion and extraction of Li+ ions, the active material having the following empirical formula (I): Ti(1+x)Nb(2-2x)WxO7 (I) wherein x is selected from the range of from 0.1 to 0.2.

LEAD OXIDES, COMPOSITIONS COMPRISING LEAD OXIDES AND METHODS OF MAKING LEAD OXIDES

Resumen de: TW202511192A

A composition is provided comprising one or more of alpha lead oxide, beta lead oxide, metallic lead, Pb2O3 and Pb3O4, the composition comprising particles comprising sub-particles, the sub-particles having a mean greatest dimension of from 10 to 300nm. Methods of making such a composition are also described.

CYLINDRICAL BATTERY

Resumen de: EP4583299A1

An anode lead (20) is bonded between a winding start side end (42a) of an anode mixture layer (42) and a winding finish side end (42b) of the anode mixture layer (42) in an α direction of an electrode (11). When a position opposite to an anode start end is defined as a first position (A) and the center position of a portion opposite to the anode lead (20) is defined as a second position (B) in a cathode mixture layer (52) in a γ direction of a cathode (12), a cathode lead (21) is bonded between the first position (A) and the second position (B) with respect to the γ direction of the cathode (12). A cathode core (51) is made to contact the inner peripheral surface of the outer casing.

CYLINDRICAL BATTERY

Resumen de: EP4583298A1

According to the present invention, a positive electrode (11) includes, between the winding start side end (42a) of a positive electrode mixture layer (42) and the winding end side end (42b) of the positive electrode mixture layer (42) in an α-direction, a first positive electrode core exposed portion (45) which is positioned at one edge in a β-direction and to which a positive electrode lead (20) is connected, and a second positive electrode core exposed portion (46) which is positioned at the other edge in the β-direction and at least part of which is opposite the first positive electrode core exposed portion (45) in the β-direction with a part (42c) of the positive electrode mixture layer (42) therebetween. The part (42c) of the positive electrode mixture layer (42) is disposed between the first positive electrode core exposed portion (45) and the second positive electrode core exposed portion (46) in the β-direction. The width-direction length a between the first positive electrode core exposed portion (45) and the second positive electrode core exposed portion (46) is not less than 10% of the β-direction length b of the positive electrode (11).

CARBON MATERIAL, AND POSITIVE ELECTRODE FOR ELECTRICAL STORAGE DEVICE, NEGATIVE ELECTRODE FOR SAME, AND ELECTRICAL STORAGE DEVICE, IN WHICH SAID CARBON MATERIAL IS USED

Resumen de: EP4582373A1

An object is to provide a carbon material that can achieve high electrical conductivity or durability together with flexibility against compression and to provide a power storage device containing the carbon material inside an electrode. The present invention provides a carbon material having a bulk modulus K that is less than or equal to 2 GPa and an average graphene domain size L that is greater than or equal to 50 nm, a cathode (212) for a power storage device and an anode (214) for a power storage device in which the carbon material is used as a conductive agent, and a power storage device (200) including a cathode and/or an anode including the carbon material as a conductive agent.

LITHIUM SECONDARY BATTERY AND COMPOSITE MEMBER

Resumen de: EP4583224A1

A disclosed lithium secondary battery includes a positive electrode, a negative electrode, a separator disposed between the positive electrode and the negative electrode, a spacer, and a non-aqueous electrolyte having lithium-ion conductivity. The negative electrode is an electrode onto which lithium metal is deposited during charging and from which lithium metal dissolves during discharging. The spacer (53) is formed on one main surface of one of the positive electrode, the negative electrode, and the separator. The spacer (53) includes linear first protrusions (53a) forming a periodically repeated pattern, and a plurality of second protrusions (53b) that are not in contact with the first protrusions (53a). The first protrusions (53a) include a plurality of annular portions that are connected to each other. The second protrusions (53b) are arranged inside the annular portions.

NICKEL-HYDROGEN BATTERY CONFIGURATIONS FOR GRID-SCALE ENERGY STORAGE

Resumen de: CN119816984A

According to some embodiments of the present disclosure, a metal hydrogen battery according to an embodiment of the present disclosure comprises: a container; a plurality of electrode stacks arranged in the container, in which each of the plurality of electrode stacks includes a plurality of electrode layers, the electrode layers including alternating cathode and anode electrodes, the anode electrodes being formed of transition metal anodes with a catalyst; one or more isolators separating the electrode layers; and an electrolyte immersing each of the plurality of electrode stacks.

ELECTRODE PRECURSOR COMPOSITION

Resumen de: CN119631187A

An electrode precursor composition for an alkali metal ion secondary battery cell is described. The composition includes a polymer-solvent gel matrix phase and a dispersed phase comprising an electrochemically active material. The electrochemically active material has a multi-modal particle size distribution with D150/D250 in the range of from 2 to 15. The electrode precursor composition may be processed into an electrode for an alkali metal ion secondary battery cell, such as a lithium ion secondary battery cell.

SYSTEM AND METHOD FOR TEMPERATURE MANAGEMENT SYSTEM FOR A FUEL CELL UNIT

Resumen de: WO2024047171A2

A temperature management system for a fuel cell unit includes a pump, a valve fluidly connected to the pump, and defining an inlet, and first, second and third outlets, a heater, a heat exchanger, a radiator. The valve is selectively adjustable between at least first, second and third configurations. In the first configuration, the valve is configured to direct fluid along a first path defined at least by the first outlet, the heater, the fuel cell unit, the pump, and the inlet. In the second configuration, the valve is configured to direct fluid along the first path and along a second path defined at least by the second outlet, the heat exchanger, the pump, and the inlet. In the third configuration, the valve is configured to direct fluid along a third path defined at least by the third outlet, the radiator, the fuel cell unit, the pump, and the inlet.

LITHIUM SECONDARY BATTERY AND COMPOSITE MEMBER

Resumen de: EP4583223A1

A disclosed lithium secondary battery includes a positive electrode, a negative electrode, a separator (50) disposed between the positive electrode and the negative electrode, a spacer (53) disposed on the separator (50), and a non-aqueous electrolyte having lithium-ion conductivity. The negative electrode is an electrode onto which lithium metal is deposited during charging and from which lithium metal dissolves during discharging. The separator (50) includes a base layer (51) and a composite material layer (52). In a plan view, the shortest distance from any point on the spacer (53) to the outer edge of the spacer (53) is less than 1.5 mm, and the spacer (53) has a width of 0.01 mm or more. The composite material layer (52) contains a polymer and inorganic particles.

ELECTRODE, BATTERY USING SAME, AND METHOD FOR PRODUCING ELECTRODE

Resumen de: EP4583180A1

An electrode 10 of the present disclosure includes an electrode active material and a solid electrolyte in contact with the electrode active material, the electrode active material includes an oxide containing titanium and containing no lithium, and the oxide exists in a state of particles having a median diameter of more than 2 µm and less than 7 µm. A battery 100 of the present disclosure includes a positive electrode 20, a negative electrode 30, and an electrolyte layer 40 placed between the positive electrode 20 and the negative electrode 30, and the positive electrode 20 or the negative electrode 30 includes the electrode 10 of the present disclosure.

NEGATIVE ELECTRODE ACTIVE MATERIAL FOR SECONDARY BATTERIES, AND SECONDARY BATTERY

Resumen de: EP4583205A1

A negative electrode active material for a secondary battery includes silicate composite particles each including a silicate phase and silicon phases. The silicon phases are dispersed in the silicate phase. The silicon phases contain phosphorus element in addition to silicon.

CAPACITY DETERIORATION ESTIMATION DEVICE

Resumen de: EP4582823A1

An object is to appropriately estimate capacity deterioration of a storage battery. To this end, a capacity deterioration estimation device (110) includes a data receiver (112) configured to receive measurement results of a current value (I) and a voltage value (V) of a storage battery (101) from a measuring part (102) configured to measure the current value (I) and the voltage value (V); and a first capacity deterioration estimator (114), and the first capacity deterioration estimator (114) has a function of reading first to fourth tables (MP1 to MP4) from a table storage (116) and a function of calculating a first estimated capacity deterioration rate (SOHQ_A) based on first to fourth relational expressions at start of charging.

ELECTRODE PLATE, ELECTRODE BODY, AND BATTERY

Resumen de: EP4583174A1

A disclosed electrode plate 21 includes: a band-shaped core body 22 having a first principal surface 23 and a second principal surface 24; and an active material layer 27 formed on each of the first principal surface 23 and the second principal surface 24. The core body 22 includes a double-side coated part 25 on which the active material layer 27 is formed on each of the first principal surface 23 and the second principal surface 24, and an exposed part 26 provided continuously with the double-side coated part 25 and on which the active material layer 27 is not formed at least on the first principal surface 23. The first principal surface 23 on the exposed part 26 has an identification indication part 28 formed thereon in a region within 90% of an area located toward a center in a width direction of the core body 22. Thus, it is possible to accurately form an identification indication part.

HNBR CATHODE BINDERS FOR BATTERY CELLS USING y-VALEROLACTONE AS PROCESSING SOLVENT

Resumen de: CN119698697A

The invention relates to a polymer comprising or consisting essentially of monomeric units derived from 1, 3-butadiene, acrylonitrile and optionally methacrylic acid, the weight content of monomeric units derived from 1, 3-butadiene being at most 65 wt.-% relative to the total weight of the polymer. The polymer can be used to make cathodes for battery cells. The invention further relates to a cathode of a battery cell comprising the polymer and to a composition comprising the polymer and gamma-valerolactone.

A METHOD FOR RECOVERING LITHIUM FROM A STREAM CONTAINING LITHIUM

Resumen de: AU2023332289A1

The present invention relates to a method for recovering lithium from a stream containing lithium, the method comprising contacting the stream, or a pre-treated solution obtained from said stream, with an aluminium-containing material to form a precipitate comprising lithium aluminate, at an alkaline pH; and recovering a slurry of said lithium aluminate.

HEAT AND COLD STORAGE UNIT HAVING A COUNTERCURRENT HEAT EXCHANGER

Resumen de: WO2024047036A1

A heat storage unit and heat exchanger has a first fluid line, a second fluid line, a heat exchanger and a storage container. The heat exchanger is designed to transfer heat between the first fluid line and the second fluid line. The storage container is designed to receive a thermal storage medium. At least a portion of the heat exchanger is arranged in the storage container in order to allow heat transfer between the heat exchanger and the thermal storage medium.

METHOD FOR RECONDITIONING LITHIUM-CONTAINING ENERGY ACCUMULATORS

Resumen de: WO2024046889A1

The present invention relates to a method for reconditioning lithium-containing energy accumulators, the method comprising at least the following method steps: i) possibly pretreating the lithium-containing energy accumulator, with the pretreatment comprising at least one of the following: thermal, mechanical and electrical pretreatment; ii) pyrolyzing the possibly pretreated lithium-containing energy accumulator, with the release of carbon dioxide, and with at least partial carbonation, under a carbon-dioxide atmosphere, of the lithium contained; iii) separating lithium in a separating step; and iv) hydrometallurgically reconditioning the mixture obtained in method step iii), with further carbonation of the lithium contained and with separation of lithium in a further separating step, with v) carbon dioxide released in method step ii) being returned in at least one of method steps ii) and iii).

MONOCELL STACK FOR A BATTERY CELL

Resumen de: WO2024046830A1

The invention relates to a monocell stack for a battery cell, having a number of monocells (M) stacked one above the other in the stacking direction, each of which monocells (MS) is assembled from, in alternation in the stacking direction, an electrode sheet (K), a separator sheet (S1), a mating electrode sheet (A) and a further separator sheet (S2). According to the invention, the two separator sheets (S1, S2) are components of a double sheet layer (D), which are folded around the electrode sheet (K) in a U-fold along a folding edge (11). The mating electrode sheet (A) is arranged on the outer side of one of the separator sheets (S1, S2).

LITHIUM ION SECONDARY BATTERY POSITIVE ELECTRODE AND LITHIUM ION SECONDARY BATTERY

Resumen de: EP4583185A1

An object of the present invention is to provide a positive electrode capable of achieving both a high energy density and a long life of a lithium ion secondary battery. The positive electrode for the lithium ion secondary battery of the present invention includes a positive electrode current collector; and a positive electrode active material layer laminated on the positive electrode current collector, in which the positive electrode active material layer includes a positive electrode first active material layer laminated on the positive electrode current collector, and a positive electrode second active material layer laminated on the positive electrode first active material layer, the positive electrode first active material layer includes a positive electrode first active material containing a lithium-containing composite oxide containing Li and Ni as a main component, the positive electrode second active material layer includes a positive electrode second active material containing a lithium-containing composite oxide containing Li and Ni as a main component, and a molar fraction of Ni in the positive electrode second active material of the positive electrode second active material layer is smaller than the molar fraction of Ni in the positive electrode first active material of the positive electrode first active material layer.

NEGATIVE ELECTRODE FOR LITHIUM ION SECONDARY BATTERIES, AND LITHIUM ION SECONDARY BATTERY

Resumen de: EP4583179A1

An object of the present invention is to provide a negative electrode for a lithium ion secondary battery capable of achieving an improvement in a charging performance and long life of the battery. The negative electrode for a lithium ion secondary battery of the present invention includes a negative electrode current collector, a negative electrode active material layer laminated on the negative electrode current collector, in which the negative electrode active material layer includes a negative electrode first active material layer laminated on the negative electrode current collector and a negative electrode second active material layer laminated on the negative electrode first active material layer, in which the negative electrode first active material layer includes a negative electrode first active material, and the negative electrode second active material layer includes a negative electrode second active material, and in which a BET specific surface area of the negative electrode second active material is larger than the BET specific surface area of the negative electrode first active material.

PROCESSING SYSTEM AND METHOD WITH A SINGLE VARIABLE RPM MILL FOR MANUFACTURING SPHEROIDIZED GRAPHITE POWDER

Resumen de: WO2024047598A1

The present disclosure relates to a system (100) for manufacturing spheroidized graphite powder, the system includes a feeder (104) adapted to convey primarily crushed particles to a grinding section (106). A first classifier (108) is located at the top portion of the chamber and is configured to receive the milled particles and adapted to separate the milled particles into a first particle and a second particle. A controller (112) operatively coupled to the one or more motors (110), the controller configured to operate the one or more motors at progressively varying RPM, at higher RPM it cuts the rough edges of the particle to form the first fine graphite particle and second shaped graphite particle and when the it RPM decreased to lower level, the surface smoothening of shaped particle process occurs, which results smooth surfaced spherical graphite.

LEAD-ACID BATTERY AND MANUFACTURE METHOD

Resumen de: AU2025200934A1

- 78 Lead-acid batteries or cells, electrodes and bipolar plates for the same, and methods of 5 manufacturing the same are provided. The lead-acid batteries comprise a positive and/or negative electrode having a specific pore size diameter distribution. The pore size diameter distribution may comprise: a ratio of a volume of pores having a pore size diameter greater than 20 m to a total pore volume of at least 15%; or a volume of pores having a pore size diameter greater than 20 m of at least 0.020 ml/g.

BATTERY MODULE FOR MODULAR HIGH-VOLTAGE BATTERY SYSTEM

Resumen de: US2024072382A1

A battery module for a modular high-voltage battery system comprises: electrochemical cells; a housing of an electrically insulating material, the housing enclosing the electrochemical cells; and a first connector at an outside surface of the housing, the first connector electrically connected to the electrochemical cells, the first connector comprising an insulating cover and a terminal accessible only through an opening in the insulating cover, the first connector configured for mating with a first electrical interconnect having a busbar to extend into the opening and contact the terminal.

BATTERY HEATING DEVICE AND VEHICLE

Resumen de: EP4583251A1

A battery heating device comprises a controller, a power battery, a target winding and a target bridge arm. The power battery comprises a first battery module and a second battery module. A first end of the target winding is connected to a negative electrode of the first battery module and a positive electrode of the second battery module, and a second end of the target winding is connected to the midpoint of the target bridge arm. A first end of the target bridge arm is connected to a positive electrode of the first battery module, and a second end of the target bridge arm is connected to a negative electrode of the second battery module. The controller is connected to the target bridge arm, and is configured to: control, in a parking heating mode, the target bridge arm to cause the first battery module and the second battery module to charge and discharge alternately, thereby heating the power battery.

BATTERY FOR A MOTOR VEHICLE, AND MOTOR VEHICLE

Resumen de: CN119452512A

The invention relates to a battery (10) for a motor vehicle, comprising a plurality of battery cells (12) and a battery housing (14), which encloses a housing interior (16), in which the battery cells (12) are accommodated, and which has an orifice plate (20) on which the battery cells (12) rest, according to the invention, the orifice plate (20) has, for each battery cell (12), an associated vent opening (28) on which the associated battery cell (12) rests and via which the gas discharged from the respective associated battery cell (12) can be discharged from the housing interior (16).

LOW-COST ALKALINE SECONDARY BATTERY POSITIVE ELECTRODE MATERIAL AND PREPARATION METHOD THEREFOR AND USE THEREOF

Resumen de: EP4583195A1

Embodiments of the present disclosure disclose a low-cost alkaline secondary battery positive electrode material and a preparation method and application thereof, which belongs to the technical field of alkaline secondary battery. The key points of the technical solution of the present disclosure is one of positive electrode active material of a low-cost alkaline secondary battery and s a composite positive electrode material including manganese dioxide and partially oxidized layered hydroxide, a composite positive electrode material including manganese dioxide and layered hydroxide, or a composite positive electrode material including manganese dioxide, conductive material, and one of layered hydroxide, partially oxidized layered hydroxide, or layered hydroxide. A method for preparing a zinc negative electrode material for the low-cost alkaline secondary battery and a zinc nickel secondary battery using the negative electrode material are provided. The composite positive electrode material prepared by the present disclosure has the advantage of a high discharge platform, high capacity, and good cycling stability, or the like, with respect to a conventional manganese electrode, which significantly improves the cycling stability and reversibility of the zinc-manganese alkaline secondary battery and improves the cycling life.

BATTERY SHELL, BATTERY CELL AND LARGE-CAPACITY BATTERY

Resumen de: EP4583260A1

A battery shell, a battery cell and a large-capacity battery, which mainly solve the problem of poor performance of existing large-capacity batteries. The battery shell is provided with a first through hole and is also provided with a pipeline covering the first through hole and extending along a thickness direction of the battery shell, the pipeline is provided with a second through hole on a pipe body, and the first through hole communicates with the second through hole. An electrolyte sharing channel of a large-capacity battery is formed through the pipeline, and battery cells in the large-capacity battery may be in a unified electrolyte environment, thereby improving the performance of the large-capacity battery.

THERMAL RUNAWAY FLUE GAS TREATMENT SYSTEM OF BATTERY PACK AND BATTERY PACK

Resumen de: EP4583291A1

Provided are a battery pack thermal runaway flue gas treatment system and a battery pack, which mainly solve the problem of the high cost of an existing battery thermal runaway flue gas treatment method. The battery pack thermal runaway flue gas treatment system comprises a thermal runaway flue gas treatment assembly, wherein the thermal runaway flue gas treatment assembly comprises a pressure relief pipe and an exhaust pipe; one end of the pressure relief pipe communicates with an explosion vent of a battery, and the other end of the pressure relief pipe is connected with the exhaust pipe; one end of the exhaust pipe that is disposed within a box body is connected with the pressure relief pipe, and the other end of the exhaust pipe is disposed at a top end of the box body by passing through the box body; and a height of the exhaust pipe disposed outside the box body is H. Each component of the system has a simple structure, and the cost of the system is very low. Furthermore, the exhaust pipe is disposed at the top end of the box body by passing through the box body, such that a safe distance is formed between battery thermal runaway flue gas and the battery, causing the discharged thermal runaway flue gas to not affect the battery.

COVER ASSEMBLY, ENERGY STORAGE CELL, BATTERY MODULE AND METHOD FOR PRODUCING A COVER ASSEMBLY

Resumen de: CN119790529A

The invention relates to a cover assembly for a cell housing of an energy storage cell wherein the cover assembly is arranged in an installed state to be able to fill the cell housing with an electrolyte wherein the cover assembly comprises: (i) an end plate having a fixing assembly comprising an opening, (ii) wherein the end plate further comprises a circumferential groove; (iii) a first closing element, which is arranged to close the opening before filling the cell housing and is penetrated by a filling element, by means of which an electrolyte can be filled into the cell housing, in order to fill the cell housing; (iv) a second closure element arranged to close the opening after filling the cell housing; (v) wherein the circumferential recess is arranged such that, when a specific overvoltage is reached or exceeded in the cell housing, the end plate can be split in the region of the recess such that the electrolyte can be discharged at least partially through the split region.

HOLDING DEVICE FOR RECHARGEABLE BATTERY CELLS

Resumen de: CN119547259A

A rechargeable battery as an energy supply for a power tool has at least a first energy storage element and a second energy storage element. Comprising at least a first retention device for receiving and retaining at least a first energy storage element and at least a second retention device for receiving and retaining at least a second energy storage element, at least a sub-region of the outer surface of at least the first retention device and/or the second retention device is configured such that at least one gap for a cooling fluid is provided between adjacent retention devices. A power tool having at least one rechargeable battery.

GAS-TIGHT TRACK-ETCHED MEMBRANES FOR EMERGENCY VENTING

Resumen de: CN119630472A

The present invention provides a gas-tight film for use as a rupture film, in particular for emergency venting in connection with batteries, such as for automobiles, electric bicycles, handheld devices, electronic cigarettes, energy storage devices or heavy tools. The film comprises a base film having an indentation obtained by an incomplete track etch treatment applied to the base film. In addition, the present invention provides a method of preparing a hermetic film by applying an incomplete track etching treatment to both sides of a base film.

BATTERY SELF-HEATING SYSTEM AND VEHICLE

Resumen de: EP4582306A1

A battery self-heating system, the system comprising: a power battery pack (21), a first heating module (22), a second heating module (23) and a controller (24), wherein the power battery pack (21) comprises a first battery group (E1) and a second battery group (E2), which are connected in series; the first heating module (22) comprises a first heating sub-module (221) and a second heating sub-module (222); the second heating module (23) comprises a third heating sub-module (231) and a fourth heating sub-module (232); and the controller (24) is configured to: control the first heating module (22) and the first battery group (E1) to alternately charge and discharge, control the second heating module (23) and the second battery group (E2) to alternately charge and discharge, and control, when one of the first battery group (E1) and the second battery group (E2) is in a discharged state, the other of the first battery group (E1) and the second battery group (E2) to be in a charged state.

FIRE-FIGHTING FOAM FOAMING APPARATUS, SYSTEM AND METHOD

Resumen de: EP4582149A1

A fire-fighting foam foaming apparatus, system and method, relating to the technical field of compressed air foam fire suppression, and used for improving the foaming effect. The fire-fighting foam foaming apparatus comprises: an air nozzle assembly, comprising a liquid inlet hole, an air inlet hole, a first air outlet hole, and a flow guiding portion; the liquid inlet hole being in fluid communication with a first flow path, and the liquid inlet hole being located downstream of the first flow path; the air inlet hole being in fluid communication with a second flow path; and a foam mixing chamber, located downstream of the first flow path and the second flow path and in fluid communication with both the first flow path and the second flow path; both the first air outlet hole and the flow guiding portion extending into the foam mixing chamber. The foaming effect is improved.

CASE, BATTERY, AND ELECTRIC DEVICE

Resumen de: EP4583211A1

The present application relates to the technical field of batteries, and provides a case, a battery, and an electric device. The case comprises a frame, a partition beam, and reinforcing parts. The partition beam is provided in the frame, and is configured to divide an accommodating space into a first accommodating space and a second accommodating space, the first accommodating space being used for accommodating battery cells. The reinforcing parts are provided in the second accommodating space. The reinforcing parts are arranged between the partition beam and the frame, and are used for transmitting force between the partition beam and the frame. By arranging the reinforcing parts between the frame and the partition beam, the reinforcing parts can provide a support for the partition beam, so that when the battery cells accommodated in the first accommodating space displace or expand, the force applied to the partition beam by the battery cells can be transmitted to the frame by means of the reinforcing parts, so as to effectively improve the deformation resistance of the partition beam under the pressing of the battery cells, thereby improving the service life and the use safety of the battery.

DRYING APPARATUS AND ELECTRODE SHEET MANUFACTURING DEVICE

Resumen de: EP4582190A1

A drying apparatus, comprising an oven (100) and control units (200), wherein the oven is formed by assembling a plurality of oven modules (10), each oven module comprises an oven body (11) and an air blowing apparatus (12), the air blowing apparatus is at least partially arranged in the oven body, and the air blowing apparatus is used for blowing air onto a material strip in the oven body. The plurality of control units correspond to the plurality of oven modules on a one-to-one basis, and each control unit is used for controlling an air output parameter of an air blowing apparatus of a corresponding oven module. Further disclosed is an electrode sheet manufacturing device. By means of the apparatus, the quality of a battery can be improved while reducing the cost.

BATTERY PACK

Resumen de: EP4583302A1

A battery pack (10) includes a plurality of battery modules (100), an accommodation body (200) that defines an accommodation space (250) accommodating the plurality of battery modules (100), a lower bracket (310) and an upper bracket (320) overlapping in a plurality of stages with at least a portion of the accommodation space (250), and a disconnect switch (410) for disconnecting a circuit electrically connecting the battery modules (100) to each other and provided to the lower bracket (310) and the upper bracket (320).

COMPOSITION FOR ELECTROCHEMICAL ELEMENT FUNCTIONAL LAYER, FUNCTIONAL LAYER FOR ELECTROCHEMICAL ELEMENT, LAMINATE FOR ELECTROCHEMICAL ELEMENT, AND ELECTROCHEMICAL ELEMENT

Resumen de: EP4583293A1

Provided is a composition for an electrochemical device functional layer with which it is possible to form a functional layer that has excellent wet adhesiveness and that is capable of good inhibition of metal deposition on an electrode during charging and discharging. The composition for an electrochemical device functional layer contains a particulate polymer. The particulate polymer includes a cycloalkyl group-containing monomer unit and at least one monomer unit (A) selected from the group consisting of a glycidyl group-containing monomer unit, an acetyl group-containing monomer unit, and an amide group-containing monomer unit. The particulate polymer has a volume-average particle diameter of not less than 1.0 µm and not more than 10.0 µm.

Stack for electrochemical cell

Resumen de: GB2637042A

A stack for an electrochemical cell has a laminate structure comprising a first electrode layer 2 between a first gel separator layer 3 and a second gel separator layer 4. The first and second gel separator layers each extend beyond a peripheral edge of the first electrode layer and are adhered to one another by a heat-seal 6 adjacent to opposing edges of the first electrode layer. The two gel separator layers may be adhered to each other via a heat-sealed border region 7 extending around the entire periphery of the first electrode layer. The heat-sealed border may be discontinuous and include at least one unsealed portion. The first electrode may be a gel cathode layer or a gel anode layer. The gel layers may include a copolymer of polyvinylidene fluoride (PVdF) and hexafluoropropylene (HFP) and may further include a linear or cyclic carbonate liquid electrolyte and a lithium salt. A secondary electrochemical cell may include a second electrode layer 13 in contact with the first gel separator layer of the stack. Methods of forming the stack may include edge lamination of the gel separator layers using an impulse sealer to apply a temperature of 70 to 90 °C.

Stack for an electrochemical cell

Resumen de: GB2637043A

A stack for an electrochemical cell has a laminate structure including a solid solvent-cast electrode layer 14, 15 between a first gel separator layer 17 and a second gel separator layer 18; and a gel electrode layer 12 in contact with the first gel separator layer. The gel layers may for example comprise polyvinylidene difluoride (PVdF) or a copolymer of PVdF and hexafluoropropylene (PVdF-HFP) as the gelling polymer. The solid solvent cast electrode layer may be an anode layer and the gel electrode layer may be a cathode layer. The gel electrode layer may further comprise a linear or cyclic carbonate liquid electrolyte, one or more lithium salts and an electrochemically active material. The first and second gel separator layers may be adhered to one another by a heat-sealed border region which extends around the periphery of the solid solvent cast electrode layer. The solid solvent cast electrode layer may be impregnated with a free liquid electrolyte, for example comprising a linear or cyclic carbonate liquid electrolyte and one or more lithium salts. The electrochemical cell may comprise a second gel electrode layer in contact with the second gel separator layer.

Battery plate handling apparatus and method

Resumen de: GB2637005A

An apparatus 10 comprising a horizontal elongate rack 12 and gripper modules movable along the rack. Each module comprises a gripper unit carrier (fig. 2, 18) mounted on the rack. Additionally, each gripper module comprises at least two adjacent configurable modules 14 each comprising a sub-mounting pivotally mounted on a respective carrier so as to pivot around a vertical axis. This sub-mounting comprises a horizontal sub-rack 28 on which a pair of gripper units (fig. 2 30a, 30b) are mounted such that the horizontal separation between the gripper units can be varied and the horizontal sub rack of one of the sub-mountings is higher than the horizontal sub-rack of the other sub-mounting.

COMPOSITE POSITIVE ELECTRODE MATERIAL AND PREPARATION METHOD THEREFOR, POSITIVE ELECTRODE SHEET, SECONDARY BATTERY, AND ELECTRICAL DEVICE

Resumen de: EP4583198A1

This application discloses a composite positive electrode material and a preparation method thereof, a positive electrode plate, a secondary battery, and an electric apparatus. The composite positive electrode material is LiLixNiaCobMncMdO2, where x + a + b + c + d = 1, 0 < a, b, and c < 1, 0 ≤ d ≤ 0.05, 0 ≤ x, and the element M includes one or more of Al, B, Zr, Sr, Y, Sb, Ta, Na, K, W, Ti, Mg, Nb, Hf, Mo, and Ce. A span (SPAN) of the composite positive electrode material is 1.2-2.0. The composite positive electrode material includes a first lithium-rich manganese-based positive electrode material and a second lithium-rich manganese-based positive electrode material. Primary particles of the first lithium-rich manganese-based positive electrode material are rod-like particles, a length of the rod-like particle is 0.1-1.5 µm, and Dv50 of secondary particles is 3-8 µm. Primary particles of the second lithium-rich manganese-based positive electrode material are spheroidal particles, a diameter of the spheroidal particle is 0.1-400 nm, and Dv50 of secondary particles is 8-20 µm.Dv50 of the secondary particles, the span of the composite positive electrode material, and shapes and sizes of the primary particles are controlled, so that the composite positive electrode material has high compacted density and the secondary battery has good cycling performance.

NONAQUEOUS ELECTROLYTE POWER STORAGE ELEMENT

Resumen de: EP4583230A1

A nonaqueous electrolyte energy storage device according to one aspect of the present invention includes: a negative electrode including a negative active material layer; and a nonaqueous electrolyte containing an unsaturated cyclic carbonate and a P-O bond-containing fluorophosphate, in which the negative active material layer has a BET specific surface area of 0.80 m²/g or more and 1.5 m²/g or less, and the ratio of the content of the unsaturated cyclic carbonate to the total content of the unsaturated cyclic carbonate and the P-O bond-containing fluorophosphate is 0.60 or more and less than 1.0 on a mole basis.

CATHODE FOR LITHIUM SECONDARY BATTERY AND LITHIUM SECONDARY BATTERY INCLUDING THE SAME

Resumen de: EP4583188A2

Cathodes and secondary batteries including the cathodes are disclosed. In an embodiment, a cathode includes: a cathode current collector; a first cathode active material disposed on at least one surface of the cathode current collector, and including a first cathode active material; and a second cathode active material layer disposed on the first cathode active material layer, and including a second cathode active material different from the first cathode active material, wherein a Raman peak intensity ratio of the first cathode active material layer is smaller than a Raman peak intensity ratio of the second cathode active material layer.

BATTERY PACK

Resumen de: EP4583239A1

A battery pack includes a battery module including battery cells, and busbars electrically connecting respective ones of the battery cells, and a circuit board connected to the battery module, and including a first part including wires, and extending in a length direction of the battery module, second parts extending from the first part in a direction crossing the first part, and including a circuit pattern including a fuse pattern configured to be opened based on an abnormal current, and a non-fuse pattern configured to maintain electrical connection with one or more of the busbars, and third parts respectively extending from the second parts, and connected to the busbars.

BATTERY CRUSHING METHOD AND BATTERY CRUSHING SYSTEM