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METAL MEMBER, BATTERY, METHOD FOR MANUFACTURING SAME, AND DIE SET

Resumen de: US20260264130A1

A method for manufacturing a metal member includes the steps of: preparing a workpiece; and disposing the workpiece between a punch including a punch top surface, a punch shoulder, and a punch side surface, and a die including a die flange surface, a die shoulder, and a die side surface, causing the punch and the die to approach relative to each other, and sandwiching and compressing the workpiece by the punch shoulder and the die shoulder, thereby forming a thin part on the workpiece. Portions of the punch shoulder and the die shoulder that form the thin part on the workpiece have an arc shape or a tapered shape as viewed in a cross section, and are configured to satisfy Cpd≤1.00, 0.10×Cpd≤w1, and w1

VANADIUM SOLID-STATE BATTERY

Resumen de: WO2026186188A1

A vanadium solid-state battery 10 comprises: a positive electrode 20 that contains a positive electrode active material containing vanadium ions, the oxidation number of which changes between pentavalent and tetravalent by an oxidation-reduction reaction, or cations including vanadium, the oxidation number of which changes between pentavalent and tetravalent by an oxidation-reduction reaction; a negative electrode 30 that contains a negative electrode active material containing vanadium ions, the oxidation number of which changes between divalent and trivalent by an oxidation-reduction reaction, or cations including vanadium, the oxidation number of which changes between divalent and trivalent by an oxidation-reduction reaction; and a diaphragm 12 which divides the positive electrode 20 and the negative electrode 30 from each other, and through which hydrogen ions pass. The positive electrode 20 and the negative electrode 30 are supported by a carbon material. The carbon material contained in at least one of the positive electrode 20 and the negative electrode 30 is a porous carbon which has an average pore diameter of more than 30 nm but not more than 400 nm as measured by a BJH desorption method, wherein the porosity of the carbon material of the vanadium solid-state battery is 50% to 90% inclusive.

BATTERY PACK AND ELECTRICAL APPARATUS

Resumen de: AU2025322262A1

The present application provides a battery pack and an electrical apparatus. The battery pack comprises a box body and a battery cell group. The battery cell group is mounted between two side plates of the box body in such as manner as to allow thermal conduction. At least one side plate comprises a plurality of fins, and the plurality of fins extend in the length direction of the box body and are arranged at intervals in the height direction of the box body. The battery cell group dissipates heat by means of the fins in the side plates, thereby removing the requirement for heat dissipation devices such as multi-port tubes and axial fans, reducing operating power consumption and reducing the overall size of the battery pack.

BATTERY AND ELECTRONIC DEVICE

Resumen de: US20260269386A1

Provided are a battery and an electronic device. The battery includes a cell, a protective plate and a sealant part, where the cell includes a housing, an electrode assembly, and a tab extending from the electrode assembly; the protective plate includes a protective plate main body and a connection terminal, the protective plate main body being located on a side of a first main body portion facing away from a top end face and electrically connected to the tab; the protective plate main body is parallel to a top end face of the cell; the sealant part is located at a periphery of the protective plate main body; at least one side of the protective plate in a direction of width has an exposed portion exposed outside the sealant part; and a first insulation member covers at least the exposed portion.

ELECTROLYTE, BATTERY, BATTERY PACK, AND ELECTRIC DEVICE

Resumen de: WO2026184528A1

An electrolyte, a battery, a battery pack, and an electric device. The electrolyte comprises a first additive and a second additive, wherein the first additive is a bicyclic compound, each cyclic group of the bicyclic compound comprises a sulfur-containing functional group, and the second additive comprises a silane group. In the design of the electrolyte, the first additive and the second additive are introduced, so that under the synergistic effect of the first additive and the second additive, the impedance of the battery is reduced and the cycle life of the battery is prolonged.

SECONDARY BATTERY AND ELECTRICAL DEVICE

Resumen de: WO2026184233A1

Disclosed in the present application are a secondary battery and an electrical device. The secondary battery comprises a housing and an electrode assembly, the electrode assembly being accommodated in the housing, the housing comprising a housing body and a housing cover, and the housing cover comprising a first edge and a second edge adjacent to the first edge. The housing cover is provided with a groove at least comprising a first groove section and a second groove section, and when observed in the thickness direction of the housing cover, the first groove section and the second groove section are curved. The first groove section comprises a first end connected to the second groove section and a second end which serves as the tail end of the groove. The first groove section extends in the direction facing away from the second edge. In the extension direction from the first end to the second end, the first groove section is parallel to the first edge or gradually extends away from the first edge. When the internal pressure of the secondary battery is excessively high, the groove can rupture to release pressure and discharge gas, which helps to reduce the risk of fire and explosion of the secondary battery. The first groove section can guide the crack of the groove, which helps to reduce the likelihood of the housing cover bursting open along with the groove, thereby improving the safety of the secondary battery.

ELECTRODES FOR ENERGY STORAGE DEVICES

Resumen de: US20260269264A1

0000 Disclosed herein is an apparatus comprising an electrode active layer comprising a network of high aspect ratio carbon elements defining void spaces within the network; a plurality of electrode active material particles disposed in the void spaces within the network and enmeshed in the network; and a surface treatment on the surface of the high aspect ratio carbon elements which promotes adhesion between the high aspect ratio carbon elements and the active material particles.

MANUFACTURING DEVICE AND METHOD FOR ELECTRODE ASSEMBLY

Resumen de: US20260269302A1

A manufacturing device and method for an electrode assembly. The manufacturing device for an electrode assembly includes a winding mandrel and a heating component. The winding mandrel is configured to wind an electrode plate and a separator to form a wound structure, and the heating component is configured to be inserted into a winding center of the wound structure and heat the wound structure.

CHARGING OVERCURRENT PROTECTION METHOD AND SYSTEM BASED ON AIR CONDITIONING POWER EMERGENCY UNLOADING

Resumen de: WO2026184076A1

The present application relates to a charging overcurrent protection method and system based on air conditioning power emergency unloading. The method comprises: acquiring a battery charging power request update signal and an air conditioning power unloading occurrence time demand (S1); determining the sequence of an air conditioning unloading occurrence time and a battery charging power request update time (S2); and when the air conditioning unloading occurrence time is before the battery charging power request update time, increasing a current protection threshold and maintaining the present charging power, and when the air conditioning unloading occurrence time is after the battery charging power request update time, reducing the charging power and maintaining the present current protection threshold (S3).

Secondary Battery Electrode Tab Machining Apparatus and Electrode Tab Machining Method Using the Same

Resumen de: US20260269299A1

A secondary battery electrode tab machining apparatus and an electrode tab machining method using the same is provided. The electrode tab machining apparatus includes a lower jig and an upper jig for locating on lower and upper surfaces of an electrode tab, respectively. The lower jig includes a pair of lower flat portions on an upper surface of the lower jib and a lower ridge between the pair of lower flat portions. The upper jig includes a pair of upper float portions on a lower surface of the upper jig and an upper depression configured to engage with the lower ridge is between the pair of upper flat portions. When an electrode tab is pressed between the lower jig and the upper jig a connection portion formed in the electrode tab by a pair of incision lines.

BATTERY MODULE

Resumen de: US20260269435A1

A battery module includes: a plurality of battery cells; a pair of electrode tabs provided on each of the battery cells; and a plurality of bus bars that form a current path that connects the plurality of battery cells, wherein the plurality of battery cells are disposed so as to be aligned, when a first direction is an arrangement direction of the plurality of battery cells, the pair of electrode tabs protrude in a second direction that intersects the first direction, and the plurality of bus bars extend in a third direction that intersects the second direction in a plane constituting the second direction, and each include a coupling part on at least one of opposite sides in the third direction.

POWER STORAGE MODULE

Resumen de: US20260269399A1

Power storage module (10) includes: a plurality of power storages (20); holder (50) including a plurality of containers (51), in which each of the plurality of power storages (20) is accommodated in a corresponding one of the plurality of containers (51), holder (50) includes skeleton (54) made of a first material and deformation portion (55) made of a second material having a lower strength than a strength of the first material, and deformation portion (55) is disposed along a first direction orthogonal to an axial direction of the power storage (20).

NAIL PENETRATION TEST DEVICE

Resumen de: US20260269340A1

Disclosed is a nail penetration test device, which can improve the performance of nail penetration tests. The device includes: a voltage acquisition module, including a first connection port and a second connection port, where the first connection port is connected to a nail, and the second connection port is connected to a first electrode terminal of a battery cell; and a nail mechanism, configured to control the nail to move toward the battery cell, where the voltage acquisition module is configured to detect a voltage between the nail and the first electrode terminal during the movement of the nail toward the battery cell, and the voltage is used to determine an initial penetration position of the nail on the battery cell.

ELECTRODES FOR ENERGY STORAGE DEVICE

Resumen de: US20260269332A1

Disclosed herein is an anode comprising a current collector; an anode active layer disposed on the current collector, wherein the anode active layer comprises anode active particles, an anode electrically conducting material and an anode binder; wherein the anode binder comprises a copolymer that comprises a first repeat unit and a second repeat unit; where the first repeat unit is derived from the polymerization of a first monomer that comprises an ether linkage or comprises multiple hydroxyl groups and wherein the second repeat unit is derived from the polymerization of an ethylenically unsaturated monomer that comprises a hydrophilic pendant group.

COMPOSITE, POSITIVE ELECTRODE MIXTURE, POSITIVE ELECTRODE FOR LITHIUM ION BATTERY, LITHIUM ION BATTERY, METHOD FOR PRODUCING COMPOSITE, USE OF ACTIVATED CARBON, AND METHOD FOR PRODUCING ACTIVATED CARBON

Resumen de: US20260269263A1

This composite includes: activated carbon that has a specific surface area of 1400 m2/g or greater and satisfies one or both of the following conditions (A) and (B); and at least one of elemental sulfur and a discharge product of elemental sulfur. (A) The peak width of the D band in the Raman spectrum of the activated carbon is 100 cm−1 or less. (B) The peak width of the G band in the Raman spectrum of the activated carbon is 70 cm−1 or less.

BATTERY HOUSING, BATTERY, AND ELECTRONIC DEVICE

Resumen de: US20260269391A1

A battery housing includes a bottom plate, a peripheral side plate, and a positive electrode assembly; the bottom plate is provided with a first plate body, a second plate body, and a connecting plate body connected between the first plate body and the second plate body; the peripheral side plate is annularly arranged on an outer periphery of the bottom plate, and is connected to the bottom plate to form an accommodating cavity having an opening in one end; the positive electrode assembly is arranged on the second plate body. The bottom plate is divided into three portions, i.e., the first plate body, the second plate body, and the connecting plate body connected between the first plate body and the second plate body, and the positive electrode assembly is arranged on the second plate body.

STIRRING SYSTEM FOR LITHIUM IRON PHOSPHATE SLURRY

Resumen de: US20260265059A1

The present application provides a stirring system for lithium iron phosphate slurry, including a first dispersion system formed by a first feeding mechanism, a second feeding mechanism, a first stirring tank, a homogenization pump, and a first demagnetizing machine, and a second dispersion system formed by a second stirring tank, a driving pump, a second demagnetizing machine, a heat exchanger and a grinding device. The first stirring tank is further in communication with a remote controller, where the remote controller is configured to send a first control command to the first stirring tank at a first time, and send a second control command to the first stirring tank at a second time, the first time being earlier than the second time.

Secondary Battery

Resumen de: US20260269249A1

A secondary battery includes a positive electrode containing an N,N′-mono-8-quinolyl-o-phenylene-Ni complex and 2,5-dimethoxy-1,4-benzoquinone, a negative electrode containing magnesium, sodium, or calcium, and an electrolyte disposed between the positive electrode and the negative electrode.

METHOD FOR DETERMINING BATTERY DETERIORATION AMOUNT, BATTERY MANAGEMENT UNIT, AND BATTERY PACK

Resumen de: US20260266917A1

There is provided, at least, a method including: acquiring battery data including temperature data indicating a temperature of a battery, SOC data indicating an SOC of the battery, and integrated current amount data indicating an integrated current amount due to charging and discharging of the battery; calculating a first deterioration amount which is a deterioration amount of the battery according to a first deterioration characteristic based on the battery data by using a first deterioration characteristic model; calculating a second deterioration amount which is a deterioration amount of the battery according to a second deterioration characteristic based on the battery data by using a second deterioration characteristic model; and calculating a deterioration amount of the battery based on the first deterioration amount and the second deterioration amount.

SECONDARY BATTERY

Resumen de: US20260269405A1

The present invention relates to a secondary battery in which metal ions dissolved in an electrolyte are oxidized/reduced, thereby charging/discharging the battery. A secondary battery module according to an embodiment of the present invention comprises a plurality of vertically-stacked layers in which oxidation-reduction reactions occur, and a pair of bus bars that electrically connect the plurality of layers, wherein each of the plurality of layers comprises an anode in which a first half-reaction occurs and a cathode in which a second half-reaction occurs, the anode and the cathode of the layers being arranged vertically.

BATTERY ELECTRICAL IMPEDANCE MEASUREMENT SYSTEMS, APPARATUSES, AND METHODS

Resumen de: US20260266915A1

Technologies are provided for impedance measurements. In one aspect, a method for measuring impedance of an individual cell in a series of cells may include combining output voltages measured from the individual cell and output voltages measured from one or more neighboring cells before correlation with a stimulus current. The method may further include controlling switches associated with the individual cell and neighboring cell(s) in a certain sequence to generate the stimulus current and the output voltages for measurements. In another aspect, a local battery management system may measure voltage waveforms associated with a battery pack including a series of cells in response to a stimulus current and wirelessly transmit the measured response waveforms to a remote battery management system. The remote battery management system may calculate the impedance of the cells based on the measured voltage waveforms and stimulus current.

BATTERY

Resumen de: US20260269389A1

A sealing body comprises: a ring-shaped current collection plate that is connected to an electrode body by means of a positive electrode lead; a disc-shaped cap that is stacked on the current collection plate and is bonded, at a radially central portion thereof, to the current collection plate; and a gasket that encloses a peripheral portion of the stack of the current collection plate and the cap vertically and laterally. An exterior can, in an upper-end part thereof, sandwiches and fixes in place a peripheral portion of the gasket so as to cover the peripheral portion vertically and laterally. The gasket includes an inwardly protruding portion that is inserted from the outside between the current collection plate and the cap. The gap between the current collection plate and the end of the cap is filled by the protruding portion.

POSITIVE ELECTRODE COMPOSITION, POSITIVE ELECTRODE AND PRODUCTION METHOD FOR SAME, AND BATTERY

Resumen de: US20260269261A1

A positive electrode composition containing carbon black, carbon nanotubes, an active material, a binding material, and a liquid medium, wherein the solid content concentration is 60 to 85 mass %, and wherein the ratio (V2/V1) of the viscosity V2 at a shear rate of 1 (1/sec) at 25° C. to the viscosity V1 at a shear rate of 0.01 (1/sec) at 25° C. is 0.02 or more and 0.2 or less.

REMAINING-BATTERY-CAPACITY ESTIMATION METHOD

Resumen de: US20260266905A1

A remaining-battery-capacity estimation method provides measurement of battery discharge exploited to allow the true value to be estimated in a short time. The estimation method estimates the remaining capacity of a battery that is rechargeable and, an explained variable for estimating remaining capacity of a battery is defined. A plurality of explanatory variables that are of high importance as elements and are used for the estimation of remaining capacity and that have linearity are extracted. A relational formula represents the relationship between the explained variable and the explanatory variables and is derived as a regression formula; the regression formula is utilized to carry out a timewise lapse estimate for at least one of the battery discharge voltage and the battery discharge current, to estimate the remaining battery capacity.

BATTERY FRAME AND CARRIER

Nº publicación: US20260269403A1 10/09/2026

Solicitante:

UNIV OF SANYA [CN]
ZHEJIANG GEELY HOLDING GROUP CO LTD [CN]
University of Sanya
ZHEJIANG GEELY HOLDING GROUP CO., LTD.

Resumen de: US20260269403A1

A battery frame and a carrier. The battery frame includes a bottom plate (10) and two side plates (20), where the bottom plate (10) and the two side plates (20) are of a profile type integrally formed structure. The two side plates (20) are symmetrically connected to two sides of the bottom plate (10). The bottom plate (10) and the two side plates (20) enclose to form a channel body (11) with an upward opening. Two ends of the channel body (11) in the length direction each has an opening. Inner side walls of the two side plates each protrudes to form a plurality of boss portions (21). The boss portions (21) and the two side plates (20) enclose to form accommodating cavities (23) for mounting power batteries (90).