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BATTERY MODULE, BATTERY PACK AND ENERGY STORAGE SYSTEM

Resumen de: US20260031418A1

A battery module according to an embodiment of the present disclosure may include a cell assembly having a plurality of stacked battery cells, a thermistor configured to sense the temperature of the battery cell, a substrate having one side to which the thermistor is coupled and configured to transmit temperature information of the battery cell sensed by the thermistor to the outside, and a thermistor plate on which the substrate is disposed and a guide groove in which the thermistor is accommodated is formed, the thermistor plate being disposed between the plurality of battery cells.

METHOD AND APPARATUS FOR DISASSEMBLING LAMINATED BATTERY

Resumen de: US20260031423A1

A method for disassembling a laminated battery includes: preparing a laminated battery including a laminate, an electrode body enclosed in the laminate, and an electrolyte enclosed in the laminate; and heating the laminated battery until at least the laminate is unsealed.

SYSTEM FOR CHARGING A HOUSE BATTERY BANK FROM AN ALTERNATOR

Resumen de: US20260031416A1

In some embodiments, a system for charging a house battery bank in a vehicle is provided. The system comprises a disconnect solenoid electrically coupled to a starter battery and an alternator of the vehicle; and a controller monitor. The controller monitor is configured to adjust a disconnect signal to cause the disconnect solenoid to disconnect the starter battery from the alternator in response to detecting an ignition on signal and detecting a merge signal indicating an electrical connection between the house battery bank and at least one of the starter battery or the alternator. In some embodiments, a method of charging a house battery bank is provided that comprises charging at least one house battery bank with an alternator powered by an engine, and contemporaneously charging a starter battery with a direct current (DC) to DC charger powered by the alternator.

ANODE-FREE LITHIUM BATTERY

Resumen de: US20260031413A1

Battery cells, vehicles with battery cells, and methods for forming battery cells are provided. A battery cell includes a cathode electrode comprising a cathode active material, wherein the cathode active material comprises lithium sulfide (Li2S); an anode current collector serving as an anode electrode; a solvate ionic liquid (SIL) electrolyte; and a fluorinated ether diluent.

ELECTRODE FOR SECONDARY BATTERY AND LITHIUM SECONDARY BATTERY INCLUDING THE SAME

Resumen de: US20260031337A1

An electrode for a secondary battery according to exemplary embodiments includes an electrode current collector; an electrode active material layer formed on the electrode current collector; and a coating layer formed on the electrode active material layer and including rod-shaped inorganic particles and spherical organic particles, wherein a ratio of a length of major axis of the rod-shaped inorganic particle to a length of diameter of the spherical organic particle may be 3 to 5.

BATTERY CELL, BATTERY, AND ELECTRICAL DEVICE

Resumen de: US20260031332A1

A battery cell, a battery, and an electrical device. A positive electrode active material of the battery cell comprises a first lithium-nickel-cobalt-manganese oxide and a second lithium-nickel-cobalt-manganese oxide. A negative electrode active material comprises a silicon-based material and a carbon-based material. A molar content of nickel element in the second lithium-nickel-cobalt-manganese oxide is greater than that of nickel element in the first lithium-nickel-cobalt-manganese oxide among all transition metal elements, wherein the molar content of the nickel element in the second lithium-nickel-cobalt-manganese oxide among all transition metal elements is greater than or equal to 0.8.

BURN-SPREAD PREVENTION MATERIAL, BATTERY PACK, AND AUTOMOBILE

Resumen de: WO2026023563A1

The present invention addresses the problem of providing a burn-spread prevention material having excellent burn-spread prevention property and high flexibility, a battery pack using the burn-spread prevention material, and an automobile equipped with the battery pack.　According to one embodiment of the present invention, there is provided a burn-spread prevention material comprising: an inorganic fiber base material containing inorganic fibers; and sodium silicate supported on the inorganic fiber base material. The sodium silicate has a water content of 30 mass% or more at 30°C.

POSITIVE ELECTRODE FOR ALL-SOLID-STATE SECONDARY BATTERY, POWER GENERATION ELEMENT, AND ALL-SOLID-STATE SECONDARY BATTERY

Resumen de: WO2026023617A1

The present invention provides: an all-solid-state secondary battery which has excellent charge and discharge cycle characteristics under high temperature conditions; and a positive electrode and a power generation element for constituting the all-solid-state secondary battery.　A positive electrode for an all-solid-state secondary battery according to the present invention has an overall void fraction of a molded body of a positive electrode mixture and a sheet-like porous metal base material of 14-21%. A power generation element according to the present invention is used for an all-solid-state secondary battery, and is provided with: a positive electrode that has a sheet-like porous metal base material and a molded body of a positive electrode mixture that contains a positive electrode active material and a solid electrolyte; a negative electrode that has a sheet-like porous metal base material and a molded body of a negative electrode mixture that contains a negative electrode active material; and a solid electrolyte layer. The overall void fraction of the molded body of the positive electrode mixture, the sheet-like porous metal base material of the positive electrode, the solid electrolyte layer, the molded body of the negative electrode mixture, and the sheet-like porous metal base material of the negative electrode is 14-22%. An all-solid-state secondary battery according to the present invention comprises a positive electrode according to the present invention or a p

ALL-SOLID-STATE BATTERY

Resumen de: WO2026022975A1

This all-solid-state battery comprises: a container; an electrode laminate that is housed in the container; and a tracer substance-containing member that is housed in the container and contains a tracer substance.

METHODS FOR MANUFACTURING SOLID ELECTROLYTE-CONTAINING SHEET AND ELECTRODE LAMINATE FOR SECONDARY BATTERY, AND SOLID ELECTROLYTE-CONTAINING SHEET

Resumen de: WO2026023342A1

This method for manufacturing a solid electrolyte-containing sheet comprises: a precursor preparation step for preparing a precursor 1, wherein the precursor is a composite material including a solid electrolyte, a curable organic material cured by a crosslinking reaction, and a porous sheet; a pressurization step for pressurizing the precursor 1 so that the porous sheet is elastically deformed; and a crosslinking step for performing a crosslinking reaction of the curable organic material in a state in which the porous sheet is elastically deformed.

BOTTOM PROTECTION PLATE FOR BATTERY PACK, BATTERY PACK COMPRISING SAME, AND VEHICLE

Resumen de: WO2026020607A1

Provided in the present application are a bottom protection plate for a battery pack, a battery pack comprising same, and a vehicle. The bottom protection plate for a battery pack comprises a metal plate and a powder coating arranged on a surface of the metal plate, wherein the thickness of the powder coating is 50-400 μm, the surface roughness of the powder coating is 15-60 μm, and the coefficient of dynamic friction between the powder coating and nitrile rubber is greater than or equal to 0.5. The solution can solve the problem of slipping caused by sliding friction during the circulation of the battery pack equipped with the powder-coating-containing bottom protection plate in a battery swap station, and can further improve the wear resistance of the battery pack and prolong the service life of the battery pack.

IRON PHOSPHATE MATERIAL, PREPARATION METHOD THEREFOR, AND USE THEREOF

Resumen de: WO2026020602A1

An iron phosphate material, a preparation method therefor, and a use thereof. The iron phosphate material is secondary particles formed by the agglomeration of primary particles, wherein the equivalent particle size of the primary particles is 20 nm-600 nm, and the D50 of the secondary particles is 5 μm-20 μm. The value of the hardness index of the iron phosphate material is less than or equal to 5; and in hardness index = (I), (II) is the average major-to-minor axis ratio of the primary particles. The average major-to-minor axis ratio refers to the ratio of the average length of the longest axis to the average length of the shortest axis of the primary particles. Vp is the specific pore volume of the iron phosphate material, with a unit of cm3/g. The iron phosphate material satisfying these characteristics has a loose structure and relatively low overall hardness, can improve the efficiency of grinding with a lithium source when used for preparing a positive electrode material, and has less wear on machinery. The prepared positive electrode material has good electrochemical performance.

CHARGE AND DISCHARGE CONTROL METHOD, COMPUTER DEVICE, AND STORAGE MEDIUM

Resumen de: WO2026020605A1

The present application provides a charge and discharge control method, a computer device, and a storage medium. The method comprises: acquiring the current state of health of a battery to be controlled during charging and discharging; determining a target charge and discharge parameter of the battery on the basis of the current state of health; and charging and discharging the battery on the basis of the target charge and discharge parameter.

CONNECTOR AND BATTERY PACK

Resumen de: WO2026020554A1

A connector (3) and a battery pack. The connector (3) is configured to connect two battery modules (2) arranged side by side, wherein a positive electrode of one battery module (2) and a negative electrode of the other battery module (2) are arranged opposite each other. The connector (3) is bent to form two ends parallel to each other and spaced apart; the two ends of the connector (3) are respectively connected to the positive electrode and negative electrode of the two battery modules (2) opposite each other, thus connecting the two battery modules (2) in series.

SECONDARY BATTERY

Resumen de: US20260031405A1

Secondary batteries are described, the batteries comprising a positive electrode layer, a negative electrode layer and an insulating layer. The insulating layer is located between the positive electrode layer and the negative electrode layer; the thickness of the positive electrode layer is about 10-200 mm; the thickness of the negative electrode layer is 5-150 mm; and the secondary battery meets the following condition: 20%≤a−(b/20)×5%≤35%; where the porosity of the insulating layer is a; and the thickness of the positive electrode layer is b mm. According to the secondary battery, the impedance of the secondary battery can be obviously reduced, and the capacity retention rate of the battery is increased in the long-term cycle process.

METHOD AND APPARATUS FOR LEAK TESTING A BATTERY CELL

Resumen de: US20260031410A1

A leak testing system includes a first test station, a second test station, a conveyor, and a controller. The first test station includes a first infrared camera equipped with a first optical CO2 lens filter, a first backdrop including a first heated surface and a first mirror, a first vacuum source, and a first CO2 gas delivery system. The second test station includes a second infrared camera equipped with a second optical CO2 lens filter, a second backdrop including a second heated surface and a second mirror, a second vacuum source, and a second CO2 gas delivery system. The first infrared camera is disposed to monitor a first field of view that includes the first backdrop. The second infrared camera is disposed to monitor a second field of view that includes the second backdrop. The controller includes a cell test procedure that is captured in algorithmic code.

NEGATIVE ELECTRODE ACTIVE MATERIAL, RECHARGEABLE LITHIUM BATTERY CONTAINING THE SAME, AND PREPARATION METHOD OF THE SAME

Resumen de: US20260031331A1

A negative electrode active material, a rechargeable lithium battery including the same, and a preparation method of the same are provided. The negative electrode active material includes an aggregated body in which two or more composites are aggregated, the composites each including silicon (Si) and carbon (C), and a coating layer around (e.g., surrounding) the aggregated body, wherein the composites each include a core containing crystalline silicon, a first shell containing a first amorphous carbon on the core, and a second shell containing amorphous silicon on the first shell, and wherein the coating layer contains a second amorphous carbon.

MANUFACTURING METHOD OF RECYCLED POSITIVE ELECTRODE ACTIVE MATERIAL

Resumen de: US20260031335A1

Provided is a technique to recover a capacity of a degraded positive electrode active material and to reduce a response resistance increased by the degradation without using a means for baking. A manufacturing method disclosed herein includes polishing the positive electrode active material. The positive electrode active material includes a core particle having a layered crystal structure and includes a coating part having a rock salt crystal structure on a surface of the core particle. A ratio (IB/IA) of a peak strength IA at 8341 eV on a nickel (Ni)—K absorption edge measured by a XAFS analysis on the positive electrode active material before the polishing and a peak strength IB at the 8341 eV on the nickel (Ni)—K absorption edge measured by the XAFS analysis on the positive electrode active material after the polishing becomes equal to or less than 0.7.

Method for Producing Cathode Material from Spent Batteries

Resumen de: US20260031420A1

The present invention relates to a method for producing cathode material from spent batteries, and to cathode material obtained according to the method of the invention.

METHOD FOR MANUFACTURING SOLID ELECTROLYTE-CONTAINING SHEET

Resumen de: WO2026023343A1

This method for manufacturing a solid electrolyte-containing sheet comprises: a first step of applying a slurry containing a solid electrolyte and a dispersion medium onto a substrate to form an initial coating film; a second step of disposing a porous sheet on the initial coating film; a third step of applying an additional slurry onto the porous sheet to form a precursor sheet; and a fourth step of drying the precursor sheet to obtain the solid electrolyte-containing sheet. In the second step, the porous sheet is disposed on the initial coating film in a state of containing the dispersion medium.

LITHIUM ION SECONDARY BATTERY

Resumen de: WO2026022539A1

Provided is a novel lithium ion secondary battery. This lithium ion secondary battery has a positive electrode and a negative electrode. The positive electrode has positive electrode active material particles. The positive electrode active material particles include lithium, cobalt, oxygen, magnesium, fluorine, nickel, and aluminum. The positive electrode active material particles have a surface layer section having an edge region, and an interior section. The interior section has an R-3m space group layered rock salt-type crystal structure. When a side-by-side arrangement of bright spots on the surface of the positive electrode active material particles as observed in a cross-sectional STEM image of a surface where lithium is inserted/extracted is treated as a first row, at least a portion of a fourth row through a ninth row that are located in the interior direction of the positive electrode active material particles have characteristics of a spinel-type crystal structure. In a STEM-EELS analysis of the fourth row through the ninth row, magnesium and nickel are detected at positions where only the Wyckoff position 16c of an Fd-3m space group overlaps, and nickel is detected at a position where only the Wyckoff position 16d overlaps.

FAST-CHARGING LITHIUM-ION BATTERY, AND PREPARATION METHOD THEREFOR AND APPLICATION THEREOF

Resumen de: WO2026021540A1

The present disclosure relates to the technical field of lithium-ion batteries, and provides a fast-charging lithium-ion battery, and a preparation method therefor and an application thereof. Specifically, a positive electrode of the lithium-ion battery comprises lithium iron phosphate and a positive electrode additive; the positive electrode additive comprises at least one of lithium ferrite, lithium oxalate, and lithium squarate; an electrolyte of the lithium-ion battery comprises a solvent, a lithium salt, and electrolyte additives; the solvent includes a low-viscosity solvent with a viscosity of ≤0.5 cps; and the electrolyte additives include a carbonate-based additive, a sulfur-containing additive, and a lithium salt additive. The lithium-ion battery of the present disclosure can effectively improve the fast-charging performance and low-temperature performance of lithium iron phosphate batteries, without causing degradation in the cycle performance and high-temperature performance of batteries. That is, the lithium-ion battery takes into account various electrical properties and has a good application prospect.

BATTERY CELL, BATTERY DEVICE AND ELECTRIC DEVICE

Resumen de: WO2026020548A1

The present disclosure provides a battery cell and an electric device. The battery cell comprises: an electrode assembly, wherein in the width direction of a positive electrode body portion, the total width of a positive electrode tab portion accounts for 50%-100% of the total width of the positive electrode body portion, and in the width direction of a negative electrode body portion, the total width of a negative electrode tab portion accounts for 50%-100% of the total width of the negative electrode body portion, wherein the coating weight of a single-layer negative electrode active material layer is 0.1 g/1540.25 mm2-0.145 g/1540.25 mm2; and an electrolyte comprising an organic solvent, wherein the organic solvent includes a first solvent, and the first solvent comprises at least one of dimethyl carbonate and a linear carboxylic ester; the structural formula of the linear carboxylic ester satisfies R1-COO-R2, wherein R1 and R2 are each independently selected from C1-C5 alkyl or haloalkyl; and on the basis of the total mass of the organic solvent, the mass fraction of the first solvent is 4%-72%.

BATTERY CELL, BATTERY DEVICE, AND ELECTRICAL DEVICE

Resumen de: WO2026020550A1

A battery cell (100), a battery device (1100), and an electrical device. The battery cell (100) comprises a housing (200) and an electrode assembly (101). The housing (200) is provided with an electrode lead-out portion (2011). At least part of the electrode assembly (101) is accommodated in the housing (200). The electrode assembly (101) comprises a first electrode plate (1) and a first insulating member (41). The first electrode plate (1) comprises a conductive member (30), a current collector (10), and an active material layer (20). The current collector (10) comprises an insulating substrate (11) and a metal layer (12). The insulating substrate (11), the metal layer (12), and the active material layer (20) are stacked in a thickness direction of the current collector (10). At least part of the metal layer (12) is located between the insulating substrate (11) and the active material layer (20). The metal layer (12) comprises a main body portion (121). The main body portion (121) comprises a transition portion (1212) and a conductive portion (1211) arranged in a first direction and connected to each other, the first direction being perpendicular to the thickness direction of the current collector (10). At least part of the conductive portion (1211) is covered with the active material layer (20), while the transition portion (1212) is not covered with the active material layer (20). The conductive member (30) comprises a first connection portion (31) and at least one second

CASE ASSEMBLY AND BATTERY PACK

Nº publicación: WO2026020598A1 29/01/2026

Solicitante:

EVE ENERGY CO LTD [CN]
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Resumen de: WO2026020598A1

The present application provides a case assembly and a battery pack. The case assembly comprises a case and liquid cooling connector groups; each liquid cooling connector group comprises a first liquid cooling connector and a second liquid cooling connector; the second liquid cooling connector comprises a first adapter section, a second adapter section, and a third adapter section; the distance between the orthographic projections of the first liquid cooling connector and the first adapter section on a plane where a second cooling plate is located is D1, the distance from the first adapter section to a side edge is D2, and D2 is greater than D1, so as to save space and costs of a front plate.