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BATTERY ASSEMBLY AND BATTERY DRIVING DEVICE

Resumen de: US20260081241A1

A battery assembly includes a battery cell that accommodates an electrode assembly and includes a first electrode terminal on a first side surface of the battery cell and a second electrode terminal on a second side surface of the battery cell different from the first side surface, a protective circuit module on the first side surface of the battery cell, and a connection unit electrically connecting the first electrode terminal to the protective circuit module and the second electrode terminal to the protective circuit module.

SECONDARY BATTERY, PACK AND ELECTRONIC APPARATUS

Resumen de: US20260081236A1

A secondary battery, a pack, and an electronic apparatus are provided. The secondary battery includes an electrode assembly formed by sequentially stacking and winding a first electrode sheet, a first separator, a second electrode sheet, and a second separator and an insulating film configured to fix a tail end of the electrode assembly. A protruding end of a tail end of the first separator and a tail end of the second separator constitutes the tail end of the electrode assembly. A tail end of the second electrode sheet extends beyond a tail end of the first electrode sheet. The tail end of the electrode assembly extends beyond the tail end of the second electrode sheet. A starting end of the insulating film extends beyond the tail end of the electrode assembly.

FLUID-COOLED ELECTROCHEMICAL CELL CONFIGURATIONS AND RELATED ARTICLES, SYSTEMS, AND METHODS

Resumen de: US20260081254A1

Fluid-cooled electrochemical cell configurations and related articles, systems, and methods are generally described.

ENERGY STORAGE TEMPERATURE BALANCING DESIGN

Resumen de: US20260081258A1

A battery enclosure system and method are disclosed. The battery enclosure system may include a housing configured to enclose battery cells. The housing may include one or more baffles extending along a first direction, each baffle including a first section disposed along the first direction and a second section angled from the first section by a baffle angle. The housing may also include one or more first fans coupled to a first side wall and one or more second fans coupled to a second side wall, which is at an opposing end of the housing relative to the first side wall along the first direction. Additionally, the housing may include a set of battery cells disposed along a floor of the housing and a controller with one or more processors configured to execute a set of program instructions stored in a memory.

SECONDARY BATTERY

Resumen de: US20260081234A1

A secondary battery, including an electrode assembly including a first electrode, a second electrode, and a separator therebetween, a case including a bottom portion, a side wall portion connected to the bottom portion, and an opening portion facing the bottom portion, the case accommodating the electrode assembly, and a cap assembly coupled to one end of the side wall portion of the case to seal the opening portion, wherein the case includes a groove region formed on an inner peripheral surface of the side wall portion.

METHOD OF MANUFACTURING ELECTRODE-LAMINATED BODY MODULE

Resumen de: US20260081161A1

A method of manufacturing an electrode laminated-body module of the present disclosure includes (a) producing an electrode laminated body by laminating a positive-electrode active material layer, a separator, and a negative-electrode active material layer in the stated order, and (b) injecting an electrolytic solution into an electrode laminated-body module including the electrode laminated body and an exterior body. In (a), at least one of the positive-electrode active material layer, the separator, and the negative-electrode active material layer has an ethylene carbonate layer on at least a part of a front surface thereof.

FAST-CHARGING OF HYBRID LITHIUM-ION/LITHIUM-METAL ANODES BY NANOSTRUCTURED HARD CARBON FLOWER HOST

Resumen de: US20260081160A1

The present embodiments relate generally to stable cycling of metallic lithium under high current densities and realistic cell conditions based on a flower-like nanostructured hard carbon host (CF). In embodiments, CF is both intercalated with lithium ions and plated with lithium metal to render a hybrid lithium-ion/lithium-metal anode capacity. The hybrid cells showed >99% CE up to 12 mA/cm2 (4 mAh/cm2) and >99.5% CE up to 16 mA/cm2 (2.5 mAh/cm2) with commercial carbonate electrolyte. The stability of the hybrid anodes was attributed to uniform lithium plating morphology and fast ion diffusion pathways enabled by the open-pore nanostructures of CF. Moreover, the CF∥NMC811 hybrid cells (2 mAh/cm2) showed excellent performance ( ̃70% capacity retention after 200 cycles, 100% SOC, room temperature) at 10 mA/cm2 current densities (<20 min charging for 100% SOC), while demonstrating ̃4 times anode specific capacity and much better cyclic stability compared to graphite|NMC lithium-ion cells at such current.

METHOD OF MANUFACTURING POSITIVE ELECTRODE SLURRY FOR ALL-SOLID-STATE BATTERY AND POSTIVE ELECTRODE MANUFACTURED BY THE SAME FOR ALL-SOLID-STATE BATTERY

Resumen de: US20260081147A1

Disclosed are methods of manufacturing positive electrode slurries for all-solid-state batteries, and positive electrodes manufactured using the methods. The method includes preparing a first mixture including a positive electrode active material and a solid electrolyte, adding a binder solution to the first mixture to perform a first kneading process on a second mixture having a solid content adjusted to a range of about 94 wt % to about 95 wt %, adding the binder solution to the second mixture to perform a second kneading process on a third mixture having a solid content adjusted to a range of about 90 wt % to about 93.9 wt %, and adding a conductive material solution to the third mixture to perform a mixing process on a fourth mixture having a solid content adjusted to a range of about 70 wt % to about 89.9 wt %.

NONAQUEOUS ELECTROLYTE SECONDARY BATTERY

Resumen de: US20260081145A1

One embodiment of the present invention provides a nonaqueous electrolyte secondary battery (10) which comprises a positive electrode (11) that contains a lithium-containing transition metal composite oxide and a sulfonic acid compound that is present on the surfaces of particles of the composite oxide. The sulfonic acid compound is represented by formula (I). With respect to this nonaqueous electrolyte secondary battery, a negative electrode (12) comprises a negative electrode core body and a negative electrode mixture layer that is formed on the surface of the negative electrode core body; and the 1% proof stress of the negative electrode core body is 300 MPa or less.(In the formula, A represents a group 1 element or a group 2 element; R represents a hydrocarbon group; and n is 1 or 2.)

METHYL ACETATE SOLVENT FOR ENERGY STORAGE DEVICE

Resumen de: US20260081232A1

An electrolyte solution may include a solvent comprising: methyl acetate, ethylene carbonate. A device may include a lithium salt component.

SECONDARY BATTERY, BATTERY PACK, AND VEHICLE

Resumen de: US20260081231A1

In general, according to an embodiment, a secondary battery includes a positive electrode, a negative electrode, and an electrolyte. The negative electrode contains a niobium-containing oxide. In hard X-ray photoelectron spectroscopy on a surface of the negative electrode, a ratio B/A of an area B in a range of 680 eV or more and 695 eV or less to an area A in a range of 200 eV or more and 215 eV or less is 1.1 or more and 4.3 or less. The electrolyte contains a lithium salt and a first carboxylate ester. A content of the first carboxylate ester is 70 mass % or more and 95 mass % or less with respect to 100 mass % of the electrolyte excluding the lithium salt.

BATTERY ENCLOSURE AND ENERGY STORAGE SYSTEM INCLUDING THE SAME

Resumen de: US20260081285A1

A battery enclosure can include an enclosure including a base fixed to an installation surface, and a battery rack being fixed to the base and configured to accommodate at least one battery. The battery rack includes at least one column extending a vertical direction. The base includes at least one horizontal beam and at least one vertical beam. The horizontal beam includes a fixture configured to fix the battery enclosure to the installation surface, and the fixture is provided at a position corresponding to a position of the column included in the battery rack. The fixture includes a middle fixture provided on the horizontal beam and a corner fixture positioned adjacent to an end of the horizontal beam or an end of the vertical beam.

SYSTEMS AND METHODS FOR IN-LINE LEAK DETECTION OF BATTERY CELLS

Resumen de: US20260081237A1

A system configured to test battery cells. The system includes: a movable platform; a plurality of test stations movable by the movable platform, each one of the plurality of test stations configured to cooperate with a pallet on which the battery cells are seated, each one of the plurality of test stations including probes that are movable into cooperation with the battery cells and configured to inject gas into each one of the battery cells; and a camera adjacent to the movable platform and configured to detect leakage of the gas out from within any of the battery cells.

SECONDARY BATTERY AND ELECTRICAL APPARATUS

Resumen de: US20260081221A1

A secondary battery and an electrical apparatus are disclosed. The secondary battery includes a negative electrode plate and a non-aqueous electrolyte solution. The negative electrode plate includes a negative electrode active material. The volume average particle size Dv50 of the negative electrode active material is 6-20 μm. The non-aqueous electrolyte solution includes an additive and a non-aqueous solvent. The additive includes a cyclic sulfate compound represented by Formula (I). The non-aqueous solvent includes ethylene carbonate.

ELECTROLYTIC SOLUTION, AND POWER STORAGE ELEMENT USING SAME

Resumen de: US20260081230A1

Electrolytic solution contains non-aqueous solvent and electrolyte salt dissolved in the non-aqueous solvent. The non-aqueous solvent contains a first compound, and the first compound is at least one type selected from a group including 1,3-diethyl-4-methyl-1-cyclobutene and a fluoro-substituted compound of the 1,3-diethyl-4-methyl-1-cyclobutene. An electricity storage element is configured using this electrolytic solution.

NEGATIVE ELECTRODE FOR A LITHIUM BATTERY

Resumen de: US20260081144A1

A battery includes a housing, a positive electrode in the housing, and a negative electrode in the housing. The negative electrode comprises an alloy. The alloy comprises lithium, magnesium, and silver at a period during charging or discharging of the battery. The battery includes an electrolyte in the housing. The electrolyte configured to conduct ionic current between the positive electrode and the negative electrode.

BATTERY MODULE AND ELECTRIC POWER-ASSISTED BICYCLE

Resumen de: WO2026056683A1

The present application provides a battery module and an electric power-assisted bicycle, the battery module being configured to be mounted in a battery accommodating cavity of the electric power-assisted bicycle, and the battery module comprising multiple battery cells, a tab plate, and a battery management circuit board; each battery cell is columnar, and the multiple battery cells are linearly arranged in a column in sequence along the length direction of the battery accommodating cavity, to form a linear battery pack; the tab plate is strip-shaped, the tab plate is arranged approximately parallel to the arrangement direction of the multiple battery cells, the tab plate is located on a side of the battery pack, and the tab plate is provided with multiple positive electrode connecting portions and multiple negative electrode connecting portions; there is one battery cell in the cross-section of the battery module, the positive electrode and the negative electrode of each battery cell are electrically connected to a positive electrode connecting portion and a negative electrode connecting portion of the tab plate, respectively, and the battery management circuit board collects parameters of the multiple battery cells by means of the tab plate. The described battery module and electric assisted bicycle can enable the battery module to adapt to an internal space of the frame of the electric assisted bicycle.

BATTERY PROTECTION PLATE INTEGRATED WITH COMBUSTIBLE GAS REGULATION AND CONTROL, PREPARATION METHOD THEREFOR, AND BATTERY MODULE

Resumen de: WO2026056666A1

A battery protection plate integrated with combustible gas regulation and control, a preparation method therefor, and a battery module. The battery protection plate integrated with combustible gas regulation and control comprises: a porous heat-insulation base material; a phase change hydrogel, which is adsorbed in the pore structure of the porous heat-insulation base material; an aerogenesis flame retardant layer, which is arranged on the surface of at least one side of the porous heat-insulation base material; and a packaging film, which is arranged on the outer side of the aerogenesis flame retardant layer and the porous heat-insulation base material, and is used for packaging the porous heat-insulation base material and and the aerogenesis flame retardant layer.

NOVEL HOUSING AND SECONDARY BATTERY

Resumen de: WO2026056742A1

The present application discloses a novel housing, comprising a side wall (131) and a housing bottom cover (13). The central region of the housing bottom cover (13) is an explosion-proof region (1321). The area of the explosion-proof region (1321) is not greater than 1/2 of the area of the housing bottom cover (13), and the thickness of the explosion-proof region (1321) is not greater than the thickness of the housing bottom cover (13). An explosion-proof notch (13211) is provided in the explosion-proof region (1321). After the explosion-proof region is provided in the central region of the bottom of the housing of the present application, when thermal runaway occurs in a battery, the explosion-proof region bursts by means of the explosion-proof notch, and blockage is not prone to occur, thereby improving the safety of the battery on the whole, and also reducing the processing and manufacturing costs of the housing.

SOLID ELECTROLYTE MATERIAL, POSITIVE ELECTRODE MATERIAL, AND BATTERY

Resumen de: WO2026058687A1

A solid electrolyte material according to the present disclosure contains: a halide solid electrolyte that contains Li, M, and X; an amorphous substance; and a binder that contains a liquid component and an inorganic substance. Here, M is at least one element that is selected from the group consisting of a trivalent metal element, a trivalent metalloid element, a tetravalent metal element, and a tetravalent metalloid element, and X is at least one element that is selected from the group consisting of F, Cl, Br, and I. The inorganic substance includes at least one substance that is selected from the group consisting of an oxide, a halide, and a halogenated oxide. A battery 1000 according to the present disclosure comprises a positive electrode 201, a negative electrode 203, and an electrolyte layer 202 that is disposed between the positive electrode 201 and the negative electrode 203, and at least one member that is selected from the group consisting of the positive electrode 201, the negative electrode 203, and the electrolyte layer 202 contains a solid electrolyte material 200 according to the present disclosure.

BATTERY

Resumen de: WO2026058836A1

The present invention provides a battery which is capable of achieving sufficiently high density of energy by increasing the battery voltage (or the output voltage).　Provided is a battery which comprises a positive electrode 1, a negative electrode 2, an electrolyte solution 3, and a separator 4. The separator 4 is a microporous film. The electrolyte solution 3 is a nonaqueous electrolyte solution which is composed of a positive electrode electrolyte solution 31 that is in contact with the positive electrode 1 and a negative electrode electrolyte solution 32 that is in contact with the negative electrode 2, the positive electrode electrolyte solution 31 and the negative electrode electrolyte solution 32 being arranged so that the separator 4 is sandwiched therebetween. The positive electrode electrolyte solution 31 and the negative electrode electrolyte solution 32 each contain a metal salt of a metal that is selected from the group consisting of alkali metals and alkaline earth metals, and a solvent that dissolves the metal salt. The activity of ions involved in a charge/discharge reaction in the positive electrode electrolyte solution 31 is higher than the activity of ions involved in a charge/discharge reaction in the negative electrode electrolyte solution 32.

SLURRY

Resumen de: WO2026058533A1

Provided is a slurry (10) in which clumping of a powder (11) can be reduced. The slurry contains a powder of an oxide-based solid electrolyte and a dispersion medium (12). The powder has a lithium ion conductivity of 1×10-6 S/cm or higher, and the lithium ion concentration of the liquid excluding the powder is between 1 ppm and 420 ppm, inclusive. The slurry is used, for example, as an additive for an electrode of an energy storage device in which lithium ions move between electrodes via an electrolytic solution, as an additive for a protective layer that protects an electrode of an energy storage device, as an additive for an electrolyte of a quasi-solid-state battery in which a solid electrolyte and an electrolytic solution are combined, and as a coating agent for a separator of an energy storage device.

LITHIUM SECONDARY BATTERY

Resumen de: WO2026058445A1

The present invention provides a lithium secondary battery that has excellent stability and charge/discharge properties. The present invention relates to a lithium secondary battery including an electrode sheet comprising a current collector that has a resin layer and metal layers formed on both surfaces of the resin layer, and an active material layer that is formed on at least one surface of the current collector, wherein the current collector has creases, and the active material layer has a level difference at the surface of portions corresponding to the creases.

SECONDARY BATTERY

Resumen de: WO2026056663A1

The present disclosure relates to the technical field of batteries, and provides a secondary battery. An adapter piece of the secondary battery comprises: a pole connecting portion, a tab connecting portion, and an auxiliary connecting portion; the pole connecting portion is configured to be connected to a pole; the tab connecting portion is configured to be connected to a tab; in a first direction, the pole connecting portion is connected to the tab connecting portion; in a second direction, the width of the tab connecting portion is greater than the width of the pole connecting portion; the first direction is not parallel to the second direction; in the second direction, the auxiliary connecting portion is arranged on one side of the pole connecting portion; the auxiliary connecting portion has one end connected to the pole connecting portion and the other end connected to the tab connecting portion; and the auxiliary connecting portion is configured to reduce the temperature rise of the adapter piece. The secondary battery uses the auxiliary connecting portion to reduce the temperature rise at the connection boundary between the pole connecting portion and the tab connecting portion of the adapter piece, thereby reducing the overall temperature of the adapter piece. In addition, the arrangement of the auxiliary connecting portion can also reduce the amount of material punched out from a sheet during manufacturing, thereby improving the material utilization rate.

PRESSURE REGULATION SYSTEM AND METHOD, THERMAL RUNAWAY MANAGEMENT SYSTEM, AND BATTERY PACK

Nº publicación: WO2026056604A1 19/03/2026

Solicitante:

EVE ENERGY STORAGE CO LTD [CN]
\u6B66\u6C49\u4EBF\u7EAC\u50A8\u80FD\u6709\u9650\u516C\u53F8

Resumen de: WO2026056604A1

A pressure regulation system (100) and method, a thermal runaway management system (10), and a battery pack. The pressure regulation system (100) comprises a gas collection line (101), a vent valve (102) and a balance valve (103), wherein the gas collection line (101) is arranged outside the battery pack, two ends of the vent valve (102) respectively communicate with one end of the gas collection line (101) and the interior of the battery pack, and two ends of the balance valve (103) respectively communicate with the interior of the battery pack and the external environment of the battery pack.