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POWER BATTERY TEMPERATURE CONTROL SYSTEM

Resumen de: WO2026051459A1

A power battery temperature control system, comprising: a first temperature sensor, a second temperature sensor, a thermal management mechanism, and a controller. The first temperature sensor is disposed on a power battery; the second temperature sensor is disposed on a first water inlet passage; the thermal management mechanism is connected to an engine cooling circuit by means of a second water inlet passage and the first water inlet passage; and the controller is used for controlling, on the basis of temperatures fed back by the first temperature sensor and the second temperature sensor, the thermal management mechanism to connect or disconnect from the engine cooling circuit, or controlling a cooling module to start or stop. When the temperature of the power battery is lower than a threshold, cooling water of an engine is used to heat the power battery. However, the temperature of the cooling water is too high during the operation of the engine, such that the temperature of the cooling water of the engine needs to be lowered by means of the cooling module, and then the cooling water is supplied to the first water inlet passage to heat the power battery to a normal working temperature.

BATTERY CELL, BATTERY, AND ELECTRIC DEVICE

Resumen de: WO2026051454A1

The present application is applicable to the technical field of batteries (100), and provides a battery cell (10), a battery (100), and an electric device. The electric device comprises the battery (100), the battery (100) comprises the battery cell (10), and the battery cell (10) comprises a casing (2), an electrode assembly (1), and electrode terminals (3). The casing (2) is provided with lead-out holes (201); the electrode assembly (1) is provided in the casing (2); each electrode terminal (3) comprises a terminal body (31) and a first boss (32), and the terminal body (31) covers the corresponding lead-out hole (201); in the axial direction (Z) of the lead-out holes (201), each first boss (32) is provided at the end of the terminal body (31) close to the electrode assembly (1); and the first bosses (32) pass through the lead-out holes (201) and are connected to the electrode assembly (1). The electrode terminals (3) each comprise the first boss (32) provided in the corresponding lead-out hole (201), so that when the size of the casing (2) is fixed, the electrode terminals (3) can extend into the casing (2). In this way, the height of the portions of the electrode terminals (3) located outside the casing (2) can be reduced, thereby reducing the size of the battery cell (10), thus reducing the space occupied by the battery cell (10) in a case (20), improving the space utilization rate of the case (20), and improving the energy density of the battery (100).

POROUS SILICON-CARBON NEGATIVE ELECTRODE MATERIAL COATED WITH FAST ION CONDUCTOR AND PREPARATION METHOD THEREFOR

Resumen de: WO2026051223A1

The present invention belongs to the technical field of negative electrode materials for lithium-ion batteries, and provides a porous silicon-carbon negative electrode material coated with a fast ion conductor and a preparation method therefor. The preparation method in the present invention comprises: pre-carbonizing a resin in a nitrogen atmosphere to obtain a carbon precursor; crushing the carbon precursor, then subjecting same and an alkali to solid-phase mixing, and sequentially performing an activating treatment and acid pickling on the mixture, so as to obtain a porous carbon material; preparing nano-silicon on the surface of the porous carbon material by subjecting a silane compound to a deposition reaction, so as to obtain a nano-silicon-deposited porous carbon substrate; introducing a carbon source gas under a protective gas atmosphere to perform chemical vapor deposition on the nano-silicon-deposited porous carbon substrate, so as to obtain a silane-deposited porous carbon composite material; and mixing the silane-deposited porous carbon composite material, a metal salt, a phosphate solution and an alkaline precipitant, and then sequentially performing a reflux reaction and a calcination treatment, thereby obtaining a porous silicon-carbon negative electrode material coated with a fast ion conductor. The silane-deposited porous carbon negative electrode material coated with a fast ion conductor prepared in the present invention has a stable structure, a high capaci

BATTERY THERMAL RUNAWAY EARLY-WARNING METHOD AND APPARATUS, ELECTRONIC DEVICE, AND STORAGE MEDIUM

Resumen de: WO2026051209A1

Provided in the present application are a battery thermal runaway early-warning method and apparatus, an electronic device, and a storage medium. The method comprises: acquiring an electrical performance data sequence of a battery to be tested; performing filtering detection processing on the electrical performance data sequence to obtain filtered electrical performance data; and on the basis of the filtered electrical performance data, determining whether the battery meets a preset warning condition, and when the battery meets the preset warning condition, outputting an early-warning signal. The method improves the accuracy and effectiveness of thermal runaway early-warning for the battery.

BATTERY MODULE

Resumen de: WO2026051189A1

The present application provides a battery module, comprising a plurality of batteries and a venting structure, wherein extension portions of the venting structure are configured to be fixed to a plurality of busbars, the venting structure is fixed to the tops of the batteries by means of the provided extension portions connected to the busbars, the venting structure is integrally mounted on the tops of the batteries so that the overall structure of the battery module is stable, and clearance is formed between the busbars and the venting structure, so as to facilitate subsequent connection of the busbars to negative and positive electrodes and also facilitate subsequent sealing fit between the venting structure and an explosion-proof valve.

NEGATIVE ELECTRODE SLURRY, NEGATIVE ELECTRODE, AND ALL-SOLID-STATE BATTERY

Resumen de: US20260074189A1

A negative electrode slurry, negative electrodes, and all-solid-state batteries are provided. The negative electrode slurry comprises a metal-carbon composite in which a metal and a carbon-based material are chemically bonded by sulfur, a binder, and a solvent. An average particle diameter (D50) of the metal-carbon composite is about 150 nm to about 1,000 nm.

SUPRAMOLECULE AND RECHARGEABLE LITHIUM BATTERIES INCLUDING THE SAME

Resumen de: US20260074224A1

A supramolecule and a rechargeable lithium battery including the supramolecule are provided. The supramolecule includes: a polymer having a functional group capable of hydrogen bonding; and an aromatic compound having two or more amine groups, wherein the functional group capable of hydrogen bonding of the polymer and the amine group of the aromatic compound form a hydrogen bond.

POSITIVE ELECTRODE ACTIVE MATERIAL, SECONDARY BATTERY, AND ELECTRIC DEVICE

Resumen de: US20260074220A1

A positive electrode active material, a secondary battery, and an electric device are disclosed. The positive electrode active material satisfies the following relationship: 300≤P*D/Δθ≤800; where P represents the porosity of the positive electrode active material, with a unit of %; D represents the crystal plane dimension of the (110) crystal plane of the positive electrode active material, with a unit of Å; and Δθ represents a splitting degree between a diffraction angle of the (110) crystal plane and that of (108) crystal plane of the positive electrode active material, with a unit of °.

NEGATIVE ELECTRODE MATERIAL AND BATTERY EMPLOYING SAME

Resumen de: US20260074208A1

A negative electrode material 1000 of the present disclosure includes a negative electrode active material 111, a sulfide solid electrolyte 100, and a conductive additive 110. The negative electrode active material 111 includes a lithium vanadium oxide, a proportion of a volume of the negative electrode active material 111 to a sum of the volume of the negative electrode active material 111 and a volume of the sulfide solid electrolyte 100 is 40% or more and 80% or less, and a proportion of a volume of the conductive additive 110 to a sum of the volume of the negative electrode active material 111, the volume of the sulfide solid electrolyte 100, and the volume of the conductive additive 110 is more than 4.4% and 15% or less.

VANADIUM OXIDE COMPOSITE AND BATTERY USING SAME

Resumen de: US20260074207A1

A vanadium oxide composite of the present disclosure includes: a particle including a vanadium oxide represented by a composition formula (1) Li3+x+aV1−xMxO4+a/2, and an electrically conductive material at least partially coating a surface of the particle. In the composition formula (1), 0

SYNTHESIS OF A METASTABLE VANADIUM PENTOXIDE AS A CATHODE MATERIAL FOR ION BATTERIES

Resumen de: US20260074206A1

A highly scalable process has been developed for stabilizing large quantities of the zeta-polymorph of V2O5, a metastable kinetically trapped phase, with high compositional and phase purity. The process utilizes a beta-CuxV2O5 precursor which is synthetized from solution using all-soluble precursors. The copper can be leached from this structure by a room temperature post-synthetic route to stabilize an empty tunnel framework entirely devoid of intercalating cations. The metastable ζ-V2O5 thus stabilized can be used as a monovalent—(Li, Na) or multivalent—(Mg, Ca, Al) ion battery cathode material.

BATTERY PACK AND VEHICLE INCLUDING THE SAME

Resumen de: US20260074355A1

A battery pack according to the present disclosure includes: a battery assembly including a plurality of battery cells; a pack case in which an accommodation space is defined to accommodate the battery assembly; at least one first vent hole provided on a first side of the battery assembly; a vent space provided on the first side of the first vent hole and formed in the pack case; and a backflow preventing member having at least one opening/closing portion disposed to correspond to the first vent hole. The opening/closing portion is opened to allow communication between the first vent hole and the vent space when an internal pressure of the battery assembly reaches or exceeds a predetermined reference value.

HONEYCOMB-LIKE THERMAL INSULATION FOR BATTERY ARRAYS

Resumen de: US20260074351A1

A battery array insulating and separating structure for implementation with multiple lithium-ion cells is disclosed. Such an article is configured in a manner to permit the disposition of individual batteries in close proximity to one another while simultaneously being separated from any contact with an insulating material therebetween. The configuration is a honeycomb-like structure preventing any contact between batteries placed therein as well as protection from heat transfer from one battery to another therein. Such a separating/insulating article thus allows for safer utilization of multiple battery cells within a close-quarter array thereof, ostensibly preventing or at least significantly reducing the propensity of a single (or multiple) battery subject to a short or other damaging phenomenon from deleteriously affecting any other batteries within the array through such heat transfer possibilities. A method of utilizing such a unique honeycomb-like array with multiple separate battery cells simultaneously is also encompassed within this disclosure.

BATTERY MOUNTING STRUCTURE FOR ELECTRIC VEHICLE

Resumen de: US20260074343A1

A battery module capable of improving NVH performance mounted on a vehicle body of an electric vehicle includes a battery casing; a plurality of cells disposed in series in a vehicle front-rear direction; and an elastic member covering at least one of an upper surface and a lower surface of each of the plural cells and coupling the cells. when an elastic modulus of the elastic member is E N/m2, cross-sectional second moment of collection of the plurality of cells and the elastic member is I m4, a total length of the plural cells in the vehicle front-rear direction is L m, and a value of tan δ as a loss factor of the elastic member is x, E, I, L, and x are set such that EI/L3 satisfies A≤EI/L3≤B, where A=4320x−0.44, B=41812x0.0931.

SECONDARY BATTERY AND METHOD OF MANUFACTURING THE SAME

Resumen de: US20260074383A1

A secondary battery, including a case, an electrode assembly in the case, a cap plate that seals the case, a tab member connected to the electrode assembly, the tab member extending toward the cap plate, a terminal body coupled to the cap plate, the terminal body facing the tab member, a guide plate extending from the terminal body, the guide plate being in the tab member, and a connection member in the terminal body, the connection member being connected to the tab member.

BOTTOM PROTECTION PLATE, BATTERY PACK AND POWER-CONSUMING DEVICE

Resumen de: US20260074344A1

PROBLEM TO BE SOLVED: To provide a structure for an automobile enhanced in the adhesiveness of a metal layer and a fiber reinforced resin layer in a case that the structure for the automobile is constituted of a metal/fiber reinforced resin composite material and capable of keeping excellent characteristics as a whole. SOLUTION: In the structure for the automobile constituted of the metal/fiber reinforced resin composite material obtained by integrally bonding the metal layer and the fiber reinforced resin layer through an intermediate resin layer, the intermediate resin layer contains particles with an average particle size of 3-10 μm comprising a thermoplastic resin and an imidazolesilane compound.

BATTERY APPARATUS, VEHICLE AND ELECTRICAL APPARATUS

Resumen de: WO2026051453A1

A battery apparatus (100), a vehicle (1000) and an electrical apparatus. The battery apparatus (100) comprises a box body (10), a first cavity (101) being provided in the box body (10); and battery cells (20) accommodated in the first cavity (101), one end of each battery cell (20) in a first direction being connected to the box body (10), and the other end of each battery cell (20) in the first direction being used for supporting the box body (10). Each battery cell (20) comprises a casing (23), an electrode assembly (24), electrode terminals (21) and a first pressure relief structure (22). The electrode terminals (21) and the first pressure relief structure (22) are respectively arranged at two ends of the casing (23) in the first direction. The electrode assembly (24) is arranged in the casing (23), and is connected to the electrode terminals (21). The ends of the battery cells (20) provided with the electrode terminals (21) are used for supporting the box body. The ends of the battery cells (20) having the electrode terminals (21) provide support for the box body (10), so as to improve the bearing capacity of a box cover.

BATTERY CELL, BATTERY, AND ELECTRIC DEVICE

Resumen de: WO2026051455A1

The present application is applicable to the technical field of batteries (100), and provides a battery cell (10), a battery (100) and an electric device. The electric device comprises the battery (100). The battery (100) comprises the battery cell (10). The battery cell (10) comprises a casing (2), an electrode assembly (1), an electrode terminal (3) and a first insulating member (4). The casing (2) is provided with a lead-out hole (201); the electrode assembly (1) is arranged in the casing (2); the electrode terminal (3) passes through the lead-out hole (201) or is arranged opposite to the lead-out hole (201); the electrode terminal (3) is connected to the casing (2) and the electrode assembly (1), and is provided with a limiting groove (301); the first insulating member (4) comprises an insulating body (41) and a limiting member (42) connected to the insulating body (41); the insulating body (41) is arranged between the casing (2) and the electrode assembly (1); the limiting member (42) is inserted into the limiting groove (301), and forms positional limitation with the limiting groove (301) in the axial direction (Z) of the lead-out hole. By inserting the limiting member (42) of the first insulating member (4) into the limiting groove (301) of the electrode terminal (3), positional limitation in the axial direction (Z) between the first insulating member (4) and the electrode terminal (3) is achieved, thereby improving the bonding strength between the electrode terminal (

LITHIUM-ION BATTERY ELECTROLYTE AND LITHIUM ION BATTERY

Resumen de: WO2026051457A1

A lithium-ion battery electrolyte and a lithium-ion battery. In order to solve the problem of poor high-temperature performance and normal-temperature cycle performance of a high-voltage NCM system lithium-ion battery, the electrolyte comprises: an organic solvent, a lithium salt, and an additive, wherein the organic solvent comprises a fluorinated carboxylic ester and a carbonate excluding ethylene carbonate, and wherein the additive comprises one or more of an alkynyl carbonate derivative, a dioxane compound, and a cyclic anhydride, and one or more of vinylene carbonate, fluoroethylene carbonate, ethylene sulfate, lithium difluorophosphate, lithium difluoro bis(oxalato) phosphate, and tris(trimethylsilyl) phosphate. The stability of the high-voltage NCM system lithium-ion battery at a high voltage is greatly improved by means of optimizing the combination of a solvent system and an additive, wherein the solvent system has a mixture of a fluorinated carboxylic ester and a carbonate excluding EC, such that the normal-temperature cycle performance, high-temperature cycle performance, high-temperature storage, and other such capabilities of said high-voltage NCM system lithium-ion battery are all improved.

FIXTURE, ISOSTATIC PRESSING APPARATUS, AND BATTERY PRODUCTION DEVICE

Resumen de: WO2026051170A1

The present application relates to the field of batteries, and provides a fixture, an isostatic pressing apparatus, and a battery production device. The fixture comprises at least two clamping plates and a pressure assembly. The clamping plates are stacked in a first direction, and a packaged electrode assembly is located between any two adjacent clamping plates. The pressure assembly is configured to apply pressure to the clamping plates in the first direction, so that any two adjacent clamping plates move close to each other. Each clamping plate comprises a support layer and a flexible layer stacked in the first direction, the flexible layer is located on at least one side of the support layer close to the packaged electrode assembly, and the hardness of the flexible layer is less than the hardness of the support layer. During isostatic pressing, a pressurizing medium pushes the clamping plates to apply pressure to the packaged electrode assembly to achieve densification processing. The support layer has relatively high hardness, enabling the clamping plate to possess certain hardness to apply pressure to the packaged electrode assembly; the packaged electrode assembly is in contact with the flexible layer, and the flexible layer has relatively low hardness, thereby reducing the possibility of damage to the packaged electrode assembly.

SODIUM-ION SOLID-STATE ELECTROLYTE AND PREPARATION METHOD THEREFOR, AND ALL-SOLID-STATE SODIUM-ION BATTERY

Resumen de: WO2026051162A1

A sodium-ion solid-state electrolyte and a preparation method therefor, and an all-solid-state sodium-ion battery. The electrolyte comprises a substrate and an interface protection layer, wherein the interface protection layer covers a surface of the substrate; the substrate is a polymer electrolyte; the interface protection layer is a metal; and the metal comprises at least one of Sn, Zn, In, Sb, Bi and Ge. By covering the surface of the substrate with the metal source serving as the interface protection layer, a stable metal thin layer interface is formed by means of the alloying of sodium and the metal source, which metal thin layer interface can effectively prevent the growth of sodium dendrites, reduce damage to the sodium-ion solid-state electrolyte in the cycling process of a battery, improve the interfacial wettability and reduce the interfacial charge transfer resistance, thereby improving the interface stability of a sodium metal negative electrode and the solid-state electrolyte, and therefore a stable long-cycle all-solid-state sodium-ion battery is obtained.

BATTERY CELL, BATTERY, AND ELECTRIC DEVICE

Resumen de: WO2026050953A1

Embodiments of the present application provide a battery cell, a battery, and an electric device. The battery cell comprises a casing, an electrode assembly, an electrode terminal, and a connecting member; the casing comprises a first wall; the electrode assembly is arranged in the casing, and the electrode assembly comprises a tab; the electrode terminal is arranged on the first wall, and the electrode terminal is electrically connected to the tab; the connecting member is at least partially arranged on the periphery of the electrode terminal, and the connecting member is configured to fix the electrode terminal to the first wall. The connecting member is connected to the first wall, and the connecting member comprises a first sub-component and a second sub-component connected to each other. The first sub-component is connected to the first wall, and the hardness of the second sub-component is greater than that of the first sub-component. The technical solution of the present application can improve the reliability of the battery cell.

MULTI-MODULE FUEL CELL SYSTEM AND METHOD OF CONTROLLING THE SAME

Resumen de: US20260074249A1

A multi-module fuel cell system includes a plurality of fuel cell stacks, at least one battery connected to the plurality of fuel cell stacks, and a controller configured to determine whether the plurality of fuel cell stacks and the at least one battery are allowed to provide outputs in response to input of a required output, and controls either the plurality of fuel cell stacks or the at least one battery, selectively, to provide an output to satisfy the required output based on a result of determination as to whether outputs are allowed to be provided, and a method of controlling the same.

SECONDARY CARBON BATTERY

Resumen de: US20260074297A1

Carbon batteries are attractive from an environmental perspective, as they have carbon-only electrodes and are therefore metal-free. The current invention refers to secondary carbon batteries with water-based brine electrolytes. These electrolytes have low toxicity, are not flammable, and allow for easy on-site battery recycling. The operating voltage of the inventive secondary carbon batteries can reach up to 1.8 V. These carbon batteries are best suited for electric storage utilities in renewable energy installations.

ELECTRODE AND SECONDARY BATTERY

Nº publicación: US20260074235A1 12/03/2026

Solicitante:

SAMSUNG SDI CO LTD [KR]
SAMSUNG SDI CO., LTD

Resumen de: US20260074235A1

An electrode and a secondary battery are disclosed. An electrode includes a substrate, and a coating layer including a first coating layer coated on a side of the substrate in a first direction, and a second coating layer coated on another side of the substrate in a second direction, and the coating layer includes a first layer and a second layer located on the first layer and defining a step with the first layer.