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520
resultados
Última actualización
07/05/2026 [06:55:00]
Resumen de: WO2026089400A1
The present invention relates to a positive electrode active material and a lithium secondary battery comprising same. More specifically, the present invention relates to a positive electrode active material having a polycrystalline structure and a lithium secondary battery comprising same, in which surface resistance characteristics are stabilized and high-temperature cycle life characteristics are improved through surface modification of a lithium transition metal oxide containing 80 mol% or more of nickel (Ni) among transition metals.
Resumen de: US20260121229A1
The present disclosure provides a secondary battery, in which a separator is fixed by sewing to restrict movement of the separator, thereby improving electrical stability of the secondary battery, and a method of manufacturing the secondary battery. The secondary battery may include an electrode assembly including a positive electrode plate, a negative electrode plate, and a separator, and a fixing part provided at an end of the electrode assembly, with the fixing part being configured to sew and fix the separator at a position separated from the positive electrode plate and the negative electrode plate.
Resumen de: US20260121039A1
0000 The present disclosure relates to a novel polycrystalline cathode active material, and more specifically, provides a novel polycrystalline cathode active material having an effect of improving lifetime characteristics while securing excellent output and capacity characteristics by determining an optimal size and number of primary particles and a size of secondary particles by utilizing peak intensities of an H2 phase and an H3 phase.
Resumen de: WO2026089805A1
A gas monitor includes a housing defining a first flow channel and a second flow channel, each including a flow path axis wherein the axes intersect at an angle of at least 60 degrees. Gas monitors can be stacked by engaging a support assembly of one with an engagement assembly of another such that a center of mass of two stacked gas monitors is positioned within a footprint of the support assembly of a lower one of the two stacked gas monitors. The gas monitor includes a battery assembly comprising a plurality of slots configured to each receive a battery pack, however, the gas monitor is configured to operate normally with power provided by a single battery pack. The gas monitor includes a controller configured to operate a plurality of gas monitors, along with a remote computing device, as a cooperative monitoring group.
Resumen de: DE102024131570A1
Die Erfindung betrifft ein Verfahren zur Rückverfolgung eines Batterierohstoffs (19) in einer Lieferkette (12). Das Verfahren umfasst folgende Schritte:- Abbau eines einen Batterierohstoff (19) enthaltenden Stoffgemischs (17),- Extrahieren des Batterierohstoffs (19) aus dem Stoffgemisch (17),- Markierung des Batterierohstoffs (19) mit einem Tracer (40), wobei der Tracer (40) analytisch von dem Batterierohstoff (19) unterscheidbar ist,- Weiterverarbeitung des abgebauten Batterierohstoffs (19) in mindestens einem Verarbeitungsprozess (33), wobei bei der Weiterverarbeitung der Tracer (40) mit dem Batterierohstoff (19) weiterverarbeitet wird und nicht von dem Batterierohstoff (19) getrennt wird.Die Erfindung betrifft ferner ein System (10) zur Rückverfolgung eines Batterierohstoffs (19) in einer Lieferkette (12), welche eine Sensorik (60) zur Erfassung eines Traces (40) in einem markierten Batterierohstoff (19) aufweist.
Resumen de: US20260118305A1
A hydrogen sulfide detection device includes a substrate including a pattern formed from a metal that reacts with hydrogen sulfide to be corroded. The pattern includes a detection portion that detects the hydrogen sulfide by corrosion of the metal exposed on a surface of the substrate. The detection portion is covered by a filter formed to allow passage of a hydrogen sulfide gas and to block passage of particles generated from the corroded metal.
Resumen de: US20260121143A1
A secondary battery according to exemplary embodiments of the present disclosure includes an electrode assembly, electrode leads joined to electrode tabs extending from each of a cathode and an anode of the electrode assembly, a pouch that accommodates and seals the electrode assembly, and exposes the electrode leads to the outside, and a catalyst part for gas removal disposed inside the pouch, between the electrode assembly and a pouch sealing portion, on a side where the electrode tabs of the electrode assembly extend.
Resumen de: WO2026086129A1
Provided are a lithium metal battery cell, an electrolyte, a battery apparatus and an electrical apparatus. The lithium metal battery cell comprises an electrode assembly and an electrolyte; the electrode assembly comprises a lithium metal negative electrode sheet; the electrolyte comprises a lithium salt and an ether solvent; the ether solvent comprises one or more of the structures shown as formula (1) and formula (2), wherein R1 and R6 each independently comprise any one of unsubstituted or halogen atom-substituted C1-C7 alkyl and C1-C7 alkenyl, R2, R4 and R5 each comprise any one of unsubstituted or halogen atom-substituted C1-C4 alkylene, R3 comprises any one of unsubstituted or halogen atom-substituted C3-C7 alkyl, and R1 and R3 are not simultaneously unsubstituted or halogen atom-substituted C3-C7 alkyl or C3-C7 alkenyl.
Resumen de: WO2026086128A1
A secondary battery cell, a secondary battery and an electric device, which belong to the technical field of secondary batteries. The capacity of the secondary battery cell is C300 Ah, and the width W and height H thereof satisfy 1≤W/H≤2. The secondary battery cell comprises an electrolyte, a negative electrode sheet and a positive electrode sheet, wherein the weight content of dimethyl carbonate in the electrolyte is greater than or equal to 0 and less than or equal to 10%, and the electrolyte contains a first additive; and the relationship between the width w of the negative electrode sheet and the height H of the secondary battery cell satisfies 90％≤w/H≤96％, and the relationship between the length l of the positive electrode sheet and the width W of the secondary battery cell satisfies 93％≤l/W≤98％. Approaches such as controlling the ratio of the width W to the height H of the secondary battery cell, controlling the weight content of dimethyl carbonate in the electrolyte, adding the first additive to the electrolyte, and controlling the volume occupation of the negative electrode sheet and the positive electrode sheet in a battery housing are used in combination, such that a large-capacity battery having a capacity not less than 300 Ah can have relatively good safety.
Resumen de: WO2026086235A1
The present application provides a secondary battery and a positive electrode paste for the secondary battery. The secondary battery comprises a positive electrode sheet, the positive electrode sheet comprising a positive electrode current collector and a positive electrode film layer provided on the positive electrode current collector, wherein the positive electrode film layer comprises at least one of a compound represented by formula A, a compound represented by formula B, and a compound represented by formula C. Formula A, formula B, formula C, where R1, R2 and R3 are each independently selected from a C2-4 alkylene group or alkenyl group, which is optionally substituted by a halogen, a C1-6 alkyl group or a C1-6 alkoxy group.
Resumen de: WO2026086279A1
The present application discloses a secondary battery and a related apparatus. The secondary battery provided by the present application comprises a negative electrode sheet. The negative electrode sheet comprises a negative electrode current collector and a negative electrode film layer provided on at least one side of the negative electrode current collector. The negative electrode film layer comprises a negative electrode active substance and a polymer. The chemical general formula of a polymerizable monomer of the polymer is formula (I). According to the secondary battery provided by the present application, because a polymer formed by a polymerizable monomer having a specific structure is added, the problems of breakage of the negative electrode active substance and damage to the internal structure of the negative electrode sheet due to volume expansion of the negative electrode sheet are significantly reduced, thereby effectively prolonging the cycle life of a battery.
Resumen de: WO2026086734A1
A sodium secondary battery, an electrolyte and an electric device. The sodium secondary battery comprises: a positive electrode sheet, wherein the positive electrode sheet comprises a positive electrode current collector, at least one side of the positive electrode current collector is provided with a positive electrode active material layer, and the positive electrode active material layer comprises a positive electrode active material; a negative electrode sheet, wherein the negative electrode sheet comprises a negative electrode current collector, and when the sodium secondary battery is charged, metal sodium is deposited in situ on the negative electrode current collector; and an electrolyte, wherein the electrolyte comprises an inorganic salt and/or an organic salt, with the inorganic salt comprising one or more of sodium nitrate, sodium trifluoroacetate and sodium tetrafluoroborate, and the organic salt comprising sodium tetraphenoxyborate.
Resumen de: WO2026086661A1
A sodium-ion secondary battery and an electric device. The secondary battery comprises a positive electrode sheet. The positive electrode sheet comprises a current collector and a positive electrode film layer located on at least one side surface of the current collector. The positive electrode film layer comprises a binder, the binder comprises a first polymer, and the first polymer comprises a butadiene-M1 copolymer, wherein the M1 monomer comprises at least one of styrene or acrylonitrile, and based on the total mass of the first polymer, the mass content of structural units derived from the M1 monomer is 20％-30％. The positive electrode sheet in the sodium-ion secondary battery has excellent bonding performance, and the secondary battery has good cycle performance.
Resumen de: US20260121013A1
Calendering methods that accurately and/or precisely calender dry electrode films, and systems thereof, are described. The methods and systems are able to control the calendering nip and/or calendering distance between the calendering rollers with and/or without the presence of an electrode film and/or electrode powder mixture such that the variation of the calendering distance is reduced.
Resumen de: WO2026086125A1
The present application relates to the technical field of secondary batteries, and provides a secondary battery cell, a secondary battery, and an electric device, wherein a capacity C of the secondary battery cell satisfies C ≥ 300 Ah, and a width W and a height H of the secondary battery cell satisfy 1 ≤ W/H ≤ 2. The secondary battery cell comprises an electrode sheet, the electrode sheet comprises a main body and an electrode tab, and a distance M between a center line of the electrode tab and an edge of the main body distal to the electrode tab, and a length D of the main body, satisfies the following relationship: 0.6 ≤ M/D ≤ 0.85; the electrode sheet further comprises a positive electrode sheet, a positive electrode active material of the positive electrode sheet comprises a V-doped lithium-containing phosphate material, and a weight percentage of the V element in the positive electrode active material is 0.01%-0.25%. Coordinately controlling the width-to-height W/H ratio of a secondary battery cell, the arrangement position of an electrode tab, and the selection of an active material enables large-capacity batteries with a capacity of at least 300 Ah to achieve low DCR, thereby improving battery energy efficiency.
Resumen de: US20260121056A1
0000 One embodiment of the present specification provides a binder for a secondary battery anode, comprising an aromatic vinyl-conjugated diene-based rubber crosslinked by polyalkylene glycol.
Resumen de: US20260121212A1
0000 A traction battery for a motor vehicle includes a battery housing. The battery housing includes a top plate having a weakened point. A method for manufacturing such a traction battery and a motor vehicle including such a battery are described herein.
Resumen de: WO2026086126A1
A lithium metal battery cell, an electrolyte, a battery apparatus, and an electric apparatus. The lithium metal battery cell comprises an electrode assembly and an electrolyte; the electrode assembly comprises a lithium metal negative electrode sheet; the electrolyte comprises a lithium salt, an ether-based solvent, and a fluorine-free ether-based diluent, a solubility of the fluorine-free ether-based diluent with respect to the lithium salt is less than a solubility of the ether-based solvent with respect to the lithium salt, and the fluorine-free ether-based diluent has a structure as represented by formula (1) or formula (2), wherein R1 and R2 are each independently C1-C8 alkyl; R3 represents any C1-C4 alkylene, R4 and R5 are each independently C3-C8 alkyl, and at least one of R1 and R2 is C3-C8 alkyl.
Resumen de: US20260116759A1
0000 Powder comprising multiple porous graphene balls as a cathode active material for an alkali metal-sulfur battery, wherein a graphene balls has a diameter from 100 nm to 20 μm and comprises (i) pores and pore walls therein and (ii) sulfur or metal polysulfide residing in the pores or supported by the pore walls, and wherein (a) the pore walls comprise a plurality of graphene sheets or planes, each having a wall thickness from 0.34 nm to 100 nm, wherein preferably a plurality of graphene sheets or planes are bonded by or integral with a disordered carbon phase; and (b) the sulfur or metal polysulfide is in a form of particles or coating having a diameter or thickness from 0.5 nm to 10 μm, in physical contact with the graphene sheets or planes, and in an amount of 0.1% to 95% of the total particulate weight.
Resumen de: WO2026090271A1
An approach to generating electrical energy includes providing a composite material having liquid metal droplets dispersed in at least one of an ionically-conductive liquid or an ionically conductive polymer. The composite material is enclosed within a flexible, stretchable enclosure. At least two electrodes are embedded within the composite material. The enclosure is mechanically deformed to cause relative movement between at least one of the electrodes and the composite material, thereby rupturing oxide layers present on surfaces of the liquid metal droplets and inducing an electrochemical reaction that generates electrical energy.
Resumen de: WO2026088373A1
This solid state battery module comprises: a battery cell laminate (10) that is obtained by laminating one or more battery cells having a positive electrode layer, a negative electrode layer, and a solid electrolyte layer disposed between the positive electrode layer and the negative electrode layer; and an external member (20) that seals the battery cell laminate (10). The external member (20) has: pressure-receiving surface parts (21A, 21B) that are disposed on the top and bottom of the battery cell laminate (10) and that have a planar shape; and a side wall part (22) that is a side wall connecting the pressure-receiving surface parts (21A, 21B) and that expands and contracts in the thickness direction (D1) of the battery cell laminate (10).
Resumen de: US20260121243A1
0000 Provided is a method for manufacturing a battery module including a weld bead. An embodiment of the present disclosure is directed to providing a method for manufacturing a battery module including a weld bead, in which a laser having a relatively higher irradiation intensity or a higher laser irradiation path density is applied to a region where a relatively smaller heat input is formed under laser irradiation of the same intensity, that is, a region irradiated while a laser focus is not matched, thereby ultimately forming a equivalent left-right heat input during laser irradiation to resolve a left-right imbalance occurring in a welded portion caused by an inclined laser irradiation direction during laser welding.
Resumen de: DE102026110535A1
Verfahren zum automatischen Vorkonditionieren einer Traktionsbatterie eines batterieelektrischen Fahrzeugs für einen Ladevorgang, gekennzeichnet durch folgende Merkmale:- Erfassen eines Anzeigeereignisses, bei dem eine aktuelle Schnellladefähigkeit der Traktionsbatterie über eine Anzeigeeinheit des Fahrzeugs dargestellt wird,- Protokollieren einer Aufrufhäufigkeit der Darstellung der aktuellen Schnellladefähigkeit innerhalb eines vorgegebenen Zeitfensters,- Bestimmen einer Anzeigedauer, während der die aktuelle Schnellladefähigkeit dargestellt wird,- Ermitteln eines Interessewerts aus mindestens der Aufrufhäufigkeit und der Anzeigedauer,- Vergleichen des Interessewerts mit einem Schwellwert, und- bei Überschreiten des Schwellwerts automatisches Ansteuern eines Thermomanagementsystems der Traktionsbatterie zum Heizen oder Kühlen der Traktionsbatterie in einen für das Laden vorgesehenen Temperaturbereich.
Resumen de: WO2026089587A1
The present disclosure relates to a secondary battery. Specifically, the disclosure provides a secondary battery, comprising: an electrode assembly in which a first electrode plate, a second electrode plate and a separator interposed between the first electrode plate and the second electrode plate are stacked and wound, and which has a space portion formed at the center of winding; a core member inserted into the space portion; a case including an opening, and accommodating the electrode assembly and an electrolyte; and a cap assembly coupled to the opening so as to seal the case, wherein the core member moves the electrolyte accommodated in the case from the bottom to the top thereof.
Nº publicación: WO2026090358A1 30/04/2026
Solicitante:
POWER PROBE GROUP INC [US]
BARDEN DAVID DOUGLAS
SWERKES DANNY J
POWER PROBE GROUP, INC.
BARDEN, David Douglas
SWERKES, Danny J.
Resumen de: WO2026090358A1
Apparatuses, systems and methods for preserving memory settings and deriving parasitic draw of an electrical system of a vehicle include a power source configured to energize the electrical system and sensor(s) electrically coupled to the power source, where the sensor(s) are configured to detect current flow from the power source to the electrical system. An analyzer electrically coupled to the power source and sensor(s) is configured to derive a parasitic draw of the electrical system based on the detected current flow. The apparatus is electrically coupled to the power source via an interface configured to electrically connect to the electrical system. Based on the apparatus being electrically coupled, via the interface, to the electrical system while cable(s) of the electrical system are disconnected from a vehicle battery, the power source preserves memory settings of the electrical system and the analyzer derives the parasitic draw of the electrical system.
BOPI
Sede Electrónica
