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BATTERY MODULE WITH IMPROVED COOLING STRUCTURE AND BATTERY PACK INCLUDING THE SAME

Resumen de: US2025300272A1

A battery module includes a cell assembly formed by stacking a plurality of battery cells in one direction, a heat dissipation member that comes into contact with the battery cell within the cell assembly, and a module frame that houses the cell assembly. The heat dissipation member includes a plate-shaped member parallel to one surface of the battery cell, and a reinforcing member extending from at least one of the first part and the second part of the plate-shaped member.

ELECTROLYTE OF RECHARGEABLE LITHIUM BATTERY AND RECHARGEABLE LITHIUM BATTERY INCLUDING SAME

Resumen de: US2025300228A1

The present invention relates to an electrolyte of a rechargeable lithium battery and a rechargeable lithium battery including same, and the electrolyte including a non-aqueous organic solvent; a lithium salt; an ionic liquid including a cation and an anion.

Internal Built-in Tab Fuses for Secondary Battery Cells, and Secondary Battery Cells Containing Such Internal Fuses

Resumen de: US2025300332A1

Fuses, for example, for preventing thermal runaway, that are built-in electrode tabs of current collectors of secondary battery cells and that are located internal to the secondary battery cells. In some embodiments, a built-in tab fuse of this disclosure includes an integral tab portion that is integral and monolithic with the current collector and a free-standing tab component that is spaced from the integral tab portion by a gap. The fuse spans the gap. In some embodiments, the fuse includes a material different from the material that composes the current collector. In some embodiments, a built-in tab fuse of this disclosure is covered by a thermally insulating material.

MULTI-LOBED MEMBRANE AND/OR SODIUM-METAL-HALIDE AND/OR MOLTEN SALT BATTERIES INCLUDING SAID MULTI-LOBED MEMBRANE THEREIN

Resumen de: US2025300320A1

A separator for a metal conversion battery can include an alkali metal-conducting ceramic material, where at least five convex curves and at least five concave curves can define a closed transverse cross-sectional profile of the separator, where the transverse cross-sectional profile can be perpendicular to a longitudinal axis of the separator.

ELASTICALLY DEFORMABLE BATTERY MODULE CONNECTOR SYSTEM

Resumen de: US2025300323A1

A battery pack having battery modules and an elastically deformable connector system for use in connecting said battery modules to one another. The elastically deformable connector system comprising busbar assembly having a busbar with a first peripheral portion, a second peripheral portion, and an elastically deformable intermediate portion located between the first and second peripheral portions. The busbar assembly also includes a first male connector assembly coupled to the first peripheral portion of the busbar, a second male connector assembly coupled to the second peripheral portion of the busbar, and a busbar housing that encloses a substantial extent of the busbar. Wherein after the busbar assembly is electrically connected to a pair of battery modules in the battery pack, the intermediate portion is configured to elastically deform to compensate for each of compression movement and expansion movement of the pair of battery modules.

FROM EV BATTERY RECYCLING TO COMMERCIAL-SCALE PRODUCTION OF LITHIUM-ION BATTERY PRECURSOR (PCAM) USING GREEN SOLUTION

Resumen de: US2025300257A1

The present invention pertains to a sustainable and efficient method for recycling lithium-ion batteries (LIBs) and producing lithium-ion battery precursor (pCAM) cathode precursors. In the recycling aspect, the invention introduces a green solvent mixture comprising Ethylene glycol phosphite (2-hydroxyethyl dihydrogen phosphite) and water, and not limited to the mixture Ethylene glycol, H3PO4 and water (H2O) or a mixture of Ethylene glycol, H2SO4 and water H2O, for leaching valuable metal ions from spent cathodes and ore minerals. This method exhibits outstanding extraction efficiency, with 99.9% recovery rates for nickel, cobalt, manganese, and 99.5% for lithium. In the pCAM synthesis aspect, a novel method that produces pCAM in the spherical hydroxide form using ammonium metal (ii) sulfate hexahydrate (NH4)2M(SO4)2·6H2O, where M represents nickel(II), manganese(II), and cobalt(II), or combinations thereof.

SYSTEM FOR SUPPLYING POWER TO A PORTABLE BATTERY USING AT LEAST ONE SOLAR PANEL

Resumen de: US2025300252A1

A system for supplying power to a portable battery pack including a battery enclosed by a wearable and replaceable pouch or skin using at least one solar panel is disclosed, wherein the pouch or skin can be provided in different colors and/or patterns. Further, the pouch or skin can be MOLLE-compatible. The battery comprises a battery element housed between a battery cover and a back plate, wherein the battery element, battery cover, and back plate have a slight curvature or contour. Further, the battery comprises flexible leads.

SECONDARY BATTERY AND ELECTRONIC APPARATUS

Resumen de: WO2025194495A1

A secondary battery and an electronic apparatus. Specifically, the secondary battery comprises a positive electrode, a negative electrode, and an electrolyte. The positive electrode comprises: lithium cobalt oxide, a binder, and an inorganic additive. The electrolyte comprises: lithium difluorophosphate, a sulfur-oxygen double bond-containing compound and 1,2,3-tris(2-cyanoethoxy)propane. The present invention can not only improve penetration resistance and warping suppression of a positive electrode, but can also improve the service life and low-temperature direct-current resistance characteristics of a high-potential area of a secondary battery.

SECONDARY BATTERY AND ELECTRONIC DEVICE

Resumen de: WO2025194501A1

The present application discloses a secondary battery and an electronic device. The secondary battery comprises an electrode assembly, the electrode assembly comprises a first electrode sheet, a separator, and a second electrode sheet which are stacked and wound, and the first electrode sheet comprises a first current collector and a first active material layer. A first groove exposing the first current collector is formed in the first active material layer, and a first tab is welded in the first groove and extends out of the electrode assembly in a first direction. The electrode assembly further comprises a first insulating layer and a second insulating layer; the first insulating layer is bonded to the first active material layer and covers the first tab; the separator comprises a first separator layer arranged adjacent to the first insulating layer in a second direction perpendicular to the first direction; the second electrode sheet comprises a first electrode sheet layer arranged adjacent to the first separator layer in the second direction; the second insulating layer is arranged between the first separator layer and the first electrode sheet layer, and is bonded to the first separator layer and the first electrode sheet layer; and the second insulating layer overlaps the first insulating layer in the second direction.

ELECTROLYTES FOR LITHIUM-SULFUR CELLS

Resumen de: WO2025194211A1

Provided are cells, such as lithium-sulfur cells, comprising a quasi-solid state liquid electrolyte, wherein the electrolyte comprises a room temperature ionic liquid and an Li salt, and certain concentration subsets of FSI- anions, wherein the electrolyte has ultralow or negligible solvating power for one or more intermediate polysulfide species (Li2Sn, 4 ≤ n ≤ 8).

ELECTROLYTES FOR LITHIUM-SULFUR CELLS

Resumen de: WO2025194212A1

Provided are cells, such as lithium-sulfur cells, comprising a quasi-solid state liquid electrolyte, wherein the electrolyte comprises a room temperature ionic liquid and an Li salt, and certain concentration subsets of FSI- anions, wherein the electrolyte has ultralow or negligible solvating power for one or more intermediate polysulfide species (Li2Sn, 4 ≤ n ≤ 8).

Swappable battery pack for refrigerated container

Resumen de: US2025300292A1

A swappable battery pack configured to power a refrigeration unit of a refrigerated vehicle or cargo container which offers a flexible and efficient solution for electrical power of refrigeration units of cooling containers or vehicles transporting temperature-sensitive cargo. By equipping such a container with a swappable battery pack, preferably further having a temperature control software component, remote management capabilities, and predictive algorithms, a refrigeration system can ensure optimal cooling performance, operational flexibility, and cargo preservation during transportation.

COMPOSITION FOR GEL POLYMER ELECTROLYTE, GEL POLYMER ELECTROLYTE AND ELECTROCHEMICAL DEVICE COMPRISING THE SAME

Resumen de: US2025300223A1

The present specification relates to a composition for a gel polymer electrolyte, a gel polymer electrolyte, and an electrochemical device including the same, and the gel polymer electrolyte according to one aspect of the present specification may simultaneously form a stable SEI layer while exhibiting high ionic conductivity, low charge transfer resistance, and elastic properties, and an electrochemical device to which such a gel polymer electrolyte is applied may exhibit high stability and excellent electrochemical performance. The gel polymer electrolyte according to one aspect of the present specification may be applied to various electrochemical devices such as lithium ion batteries and thermoelectric devices.

SYSTEM AND METHOD FOR MANAGING BATTERY MATRIX CONFIGURATIONS

Resumen de: WO2025196492A1

This disclosure relates to system (200) and method (500) for managing battery matrix configurations. The method (500) includes receiving (501), by a Battery Management System (BMS) (201), one of a first level battery charge signal, a second level battery charge signal, or a battery discharge signal. A second battery module (102) is connected with a first battery module (101) in first voltage configuration (100A) or second voltage configuration (100B). A plurality of switches includes a first set of switches, a second set of switches, and a set of relay switches. The set of relay switches includes first relay switch, second relay switch, and supply control switch. The supply control switch is in one of a first closed state, a second closed state, or an open state. The method (500) further includes managing (502), by the BMS (201), the state of the supply control switch based on the received signal.

NEGATIVE ELECTRODE PLATE AND ZINC SECONDARY BATTERY

Resumen de: WO2025197192A1

The present invention provides a negative electrode plate including a negative electrode active material and a nonionic water-absorbing polymer, and comprising a nonionic water-absorbing polymer layer formed from the nonionic water-absorbing polymer on a surface of at least one of a pair of main surfaces. The present invention also provides a zinc secondary battery including a positive electrode, a negative electrode including the negative electrode plate, a separator that isolates the positive electrode and the negative electrode in a manner allowing for hydroxide ion conduction, and an electrolytic solution.

METHOD FOR PRODUCING SULFIDE SOLID ELECTROLYTE, METHOD FOR PRODUCING LITHIUM ION SECONDARY BATTERY, AND SULFIDE SOLID ELECTROLYTE

Resumen de: WO2025197831A1

The present invention relates to a method for producing a sulfide solid electrolyte, the method comprising, in order: heating starting materials, which respectively contain Li, P, and S, and a nitride that is represented by formula MαNβ so as to obtain a melt; and cooling the melt so as to precipitate a solid. The element represented by M is at least one element that is selected from the group consisting of group 2 to group 14 metal elements or metalloid elements in the periodic table, and α and β in the formula MαNβ respectively match the stoichiometric ratios of M and N in the nitride that is represented by the formula MαNβ.

FIRE SPREAD PREVENTION MATERIAL, ASSEMBLED BATTERY, AND AUTOMOBILE

Resumen de: WO2025197842A1

Problem To provide: a fire spread prevention material having sufficient fire spread prevention properties; an assembled battery using said fire spread prevention material; and an automobile comprising said assembled battery. Solution One aspect of the present invention provides a fire spread prevention material. The fire spread prevention material comprises: an inorganic fiber substrate containing inorganic fibers; and an inorganic substance supported on the inorganic fiber substrate and containing an inorganic acid salt. The moisture content of the inorganic substance at 30ºC is at most 60 mass%, and the activation energy of the moisture when 30% of the contained moisture is desorbed from the inorganic substance is at least 80 kJ/mol.

RESIN, RESIN SOLUTION, SOLID ELECTROLYTE SLURRY, SOLID ELECTROLYTE LAYER, POSITIVE ELECTRODE LAYER, NEGATIVE ELECTRODE LAYER, AND ALL-SOLID-STATE BATTERY

Resumen de: WO2025197827A1

Provided is a resin which is characterized by: having a structure represented by formula (1); and having at least one terminal structure that is selected from the group consisting of formula (2) and formula (3). (In formula (1), m represents an integer of 3 or more, and each R1 independently represents an alkylene group having 3 to 6 carbon atoms. Each R2 independently represents a divalent organic group. n represents an integer of 5 or more.) (In formula (2), R3 represents an alkyl group having 3 or more carbon atoms, or a phenyl group.) (In formula (3), R4 represents an alkyl group having 3 or more carbon atoms, or a phenyl group.)

BATTERY PACK

Resumen de: WO2025197748A1

One of a first case half and a second case half has at least one of a portion of a peripheral edge plate or a portion of a bottom plate configured so as to be recessed toward a housing space with respect to at least one of the outer surface of the other portion of the peripheral edge plate or the outer surface of the other portion of the bottom plate, whereby the recessed space that is recessed with respect to at least one of the outer surface of the other portion of the peripheral edge plate or the outer surface of the other portion of the bottom plate is provided on the outside of the case, and the entirety of a connection piping is provided inside the recessed space.

SECONDARY BATTERY AND MANUFACTURING METHOD THEREFOR

Resumen de: WO2025198455A1

Provided is a secondary battery comprising: first group unit cells and second group unit cells stacked in a first direction; first cell tabs extending from one end of the first group unit cells and bonded to each other; second cell tabs extending from one end of the second group unit cells and bonded to each other; and an electrode lead electrically connected to the first cell tabs and the second cell tabs, wherein the first cell tabs comprise a first horizontal portion, a second horizontal portion parallel to the first horizontal portion, and a first connecting portion connecting the first horizontal portion and the second horizontal portion, and the first horizontal portion, the second horizontal portion, and the first connecting portion are connected to form a Z-shaped cross-section.

SYSTEMS AND METHODS FOR PROTECTING A DEVICE AGAINST FAULTY SWITCHES

Resumen de: WO2025196630A1

Embodiments herein disclose a system and a method for safeguarding devices against deep discharge events caused by faulty boot-up switches. The system includes an energy storage unit connected to a battery management system (BMS), wherein the BMS comprises a boot-up switch, an inhibit circuit, and a fault detection unit. The inhibit circuit enables power from the energy storage unit to reach one or more electronic components for a first time period on the boot-up switch being engaged. The fault detection unit continuously monitors the status of the boot-up switch. If the boot-up switch is activated beyond the first time period (thereby indicating a fault), a protection mode can be activated or an alert can be triggered to an operator.

SELECTIVE LITHIUM EXTRACTION METHOD FOR LITHIUM BATTERY RECOVERY AND USE THEREOF

Resumen de: WO2025195300A1

The present application relates to the technical field of recovery of waste lithium-ion batteries, and particularly relates to a selective lithium extraction method for lithium battery recovery and the use thereof. The selective lithium extraction method for lithium battery recovery comprises the following steps: S1, disassembling and screening; S2, acidification of mixed waste; S3, aging of the mixed waste under a constant temperature; S4, sintering and lithium leaching; S5, impurity removal and filtration of a filtrate; and S6, pH adjustment of the resulting lithium extraction liquid. The selective lithium extraction method for lithium battery recovery of the present application is different from conventional lithium extraction recovery methods, has relatively high selectivity during the impurity removal process, greatly reduces the time required by the impurity removal process and the operation difficulty, also simplifies the preparation process of lithium sulfate, ultimately greatly improves the lithium extraction efficiency and quality, and reduces the cost of a high-purity lithium extraction process; and the method has great market prospects.

SECONDARY BATTERY AND ELECTRIC DEVICE

Resumen de: WO2025195043A1

The present application belongs to the technical field of batteries, and particularly relates to a secondary battery and an electric device. The secondary battery comprises a negative electrode sheet and an electrolyte. The negative electrode sheet comprises a negative electrode active material. The negative electrode active material comprises a graphitized carbon material, and the negative electrode active material satisfies the following conditions: (1.1) the specific surface area of the negative electrode active material is 0.5 m2/g-3.0 m2/g; and (1.2) the volume distribution particle size Dv1 of the negative electrode active material is greater than or equal to 1.5 μm. The electrolyte includes a carboxylic ester solvent and a film-forming stabilizer. The design mode of the present application is beneficial for improving the battery performance.

LIQUID COOLING PLATE, BATTERY PACK AND ELECTRICAL DEVICE

Resumen de: WO2025195046A1

A liquid cooling plate, a battery pack and an electrical device. The liquid cooling plate comprises a flat plate, a flow channel plate and a flow channel tension plate, wherein the flow channel plate is arranged between the flat plate and the flow channel tension plate, the flow channel tension plate is fixed on an upper side of the flow channel plate in a fitting manner, or the flow channel tension plate is connected to the upper side of the flow channel plate, and an upper flow channel is enclosed by means of the flow channel tension plate and the flow channel plate; and the flat plate is connected to a lower side of the flow channel plate, and a lower flow channel is enclosed by means of the flat plate and the flow channel plate.

SILICON COMPOSITE FOR ANODE MATERIAL, PREPARING METHOD THEREFOR, ANODE COMPRISING SAME FOR SECONDARY BATTERY, AND SECONDARY BATTERY COMPRISING SAME

Nº publicación: WO2025198457A1 25/09/2025

Solicitante:

G I TECH CO LTD [KR]
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