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BATTERY CELL

Resumen de: US20260341831A1

A battery cell having a cell housing and a cell terminal, preferably an external contact element. At least one heat conductor is arranged between the cell terminal, preferably the external contact element, and the cell housing. The external contact element is connected to the cell housing in a thermally conductive manner, and preferably in an electrically insulating manner, via the heat conductor.

BATTERY CELL, BATTERY, AND ELECTRIC DEVICE

Resumen de: US20260341865A1

A battery cell includes a shell, a first insulating member, and a second insulating member. The shell is provided with a first wall. The first insulating member wraps an outer side of the shell. At least a part of the second insulating member is located between the first wall and the first insulating member and covers at least a part of an outer surface of the first wall. The first insulating member wraps the shell, the first wall is a part of the shell, and the first insulating member can provide insulating protection for the first wall of the shell; and the second insulating member covers at least a part of the outer surface of the first wall, and the second insulating member can provide insulating protection for at least a part of the first wall.

Electrode Lead Welding Method

Resumen de: US20260336028A1

A method for welding electrode leads of a cell assembly including a plurality of cells, includes preparing a cell stack with a plurality of stacked cells from which electrode leads are drawn out; preparing a busbar frame provided with a lead connection part including a pair of lead slits spaced apart at a predetermined distance; coupling a cell stack and a busbar frame such that electrode leads of the cell stack are inserted through the lead slits; bending the electrode leads penetrating through the lead slits of the lead connection part so that the electrode leads overlap towards each other; welding the pair of overlapped electrode leads; and inserting a welding protection bar into an insertion groove to be spaced apart from a rear surface of the electrode lead prior to the welding step. The lead connection part includes the insertion groove between the pair of lead slits.

SECONDARY BATTERY ROLL MAP SYSTEM

Resumen de: US20260336961A1

A secondary battery roll map system according to example embodiments includes a first controller configured to collect coordinate data, and a processor configured to collect measurement data of an electrode sheet, in which the processor is configured to relate the coordinate data with the measurement data to generate coordinate-related measurement data.

BATTERY CELL ASSEMBLY

Resumen de: US20260341917A1

Provided is a battery cell assembly according to example embodiments. The battery cell assembly includes a cell stack, first and second bus bar frames coupled to the cell stack, a first integrated circuit on the first bus bar frame, a second integrated circuit on the second bus bar frame, and a lead cover assembly coupled to the first bus bar frame, in which the lead cover assembly includes a lead cover frame coupled to the first bus bar frame and a third integrated circuit on the lead cover frame.

POROUS INSULATING LAYER-APPLIED MATERIAL FOR ADHERING ELECTROCHEMICAL ELEMENT MEMBER, STACK, ELECTRODE, ELECTROCHEMICAL ELEMENT, METHOD OF PRODUCING STACK, METHOD OF PRODUCING ELECTRODE, AND METHOD OF ELECTROCHEMICAL ELEMENT

Resumen de: US20260341907A1

A porous insulating layer-applied material includes a base material; and an adhesive porous insulating layer on the base material; where the adhesive porous insulating layer is a porous structure having an co-continuous structure including a resin as a backbone; the resin is a cross-linked resin; and the adhesive porous insulating layer gives a peel strength of 2 N/m or more in a peel measuring method with use of a peel strength measuring element derived by preparing the base material as one of two base materials each having a size of 30 mm×100 mm, disposing the adhesive porous insulating layer through one entire face of each of the two base materials to provide adhesive porous insulating layers, placing the adhesive porous insulating layers to face each other, and performing thermal adhesion under conditions at a temperature of 140 °C and an air cylinder thrust of 500 N for 1 minute.

GEL-LIKE ELECTROLYTE, CURABLE COMPOSITION AND POWER-STORAGE DEVICE

Resumen de: US20260341785A1

The present invention provides a gel-like electrolyte which is excellent in shape stability and exhibits high ionic conductivity at room temperature. The present invention further provides a curable composition which is excellent in storage stability and is used for producing the gel-like electrolyte. A gel-like electrolyte including: a (meth)acrylic polymer (hereinafter, referred to as “component (A)”) having a structural unit derived from a (meth)acrylic monomer containing a compound having two or more (meth)acryloyl groups; an alkali metal salt (hereinafter, referred to as “component (B)”); and a nonaqueous organic solvent (hereinafter, referred to as “component (C)”), in which a content ratio of the components (A) to (C) with respect to 100 mass % of a total of the components (A) to (C) is 10 to 30 mass % for the component (A), 5 to 40 mass % for the component (B), and 40 to 80 mass % for the component (C).

NEGATIVE ELECTRODE FOR ALKALINE SECONDARY BATTERIES, ALKALINE SECONDARY BATTERY, AND METHOD FOR PRODUCING NEGATIVE ELECTRODE FOR ALKALINE SECONDARY BATTERIES

Resumen de: US20260341676A1

This negative electrode for alkaline secondary batteries comprises a negative electrode current collector and a negative electrode mixture that is supported by the negative electrode current collector. The negative electrode mixture contains a hydrogen storage alloy that has an Fe content of 200 to 900 ppm by mass, and a carbon black that has an Fe content of 1,000 to 2,800 ppm by mass.

A METHOD FOR RECYCLING OF LITHIUM-ION BATTERIES AND CELLS

Resumen de: US20260341823A1

The invention relates to a method for recycling of lithium-ion cells and batteries, comprising the following steps: a) grinding lithium-ion cells and/or batteries in a grinding device sprayed with an organic solvent and in an inert gas protective atmosphere to form a heterogeneous mixture comprising ground lithium-ion cells and/or batteries and the organic solvent;b) mechanically stirring the heterogeneous mixture obtained in step a) to form a suspension comprising a coarse fraction, black mass and the organic solvent in which the electrolyte from the lithium-ion cells and/or batteries and binders are dissolved;c) separating the suspension obtained in step b) into the coarse fraction and a suspension of the black mass in the organic solvent in which the electrolyte from the lithium-ion cells and/or batteries and the binders are dissolved; andd) separating the suspension obtained in step c) into the black mass and the organic solvent in which the electrolyte from the lithium-ion cells and/or batteries and the binders are dissolved.

BATTERY CELL AND MANUFACTURING METHOD THEREOF, BATTERY, AND ELECTRIC APPARATUS

Resumen de: US20260341853A1

A battery cell includes an electrode assembly and an outer package. The electrode assembly includes a positive electrode plate, the positive electrode plate is provided with a positive electrode active material layer, and the positive electrode active material layer includes a transition metal oxide. The outer package is configured to package the electrode assembly, the outer package is provided with a venting means, and the venting means includes a gas-permeable film. With the venting means installed on the outer package of the battery cell, excess gas generated during use of the battery cell due to the instability of the transition metal is promptly discharged to the outside of the battery cell through the gas-permeable film of the venting means so that the an explosion-proof valve of the battery cell is less likely not prone to experience abnormal valve opening caused by excessive internal pressure.

DRY ION EXCHANGE MEMBRANE PRODUCTION METHOD

Resumen de: US20260341786A1

To provide a method for producing a dry ion exchange membrane with which a water electrolyzer with suppressed leakage can be produced. The dry ion exchange membrane production method of the present invention comprises drying a wet ion exchange membrane that contains a fluorinated polymer having ion exchange groups wetted with a liquid medium to remove the liquid medium thereby to obtain a dry ion exchange membrane; wherein the drying of the wet ion exchange membrane is initiated from a state where the amount of the liquid medium attached to the surface of the wet ion exchange membrane is 40 g/m2 or more and 600 g/m2 or less.

BATTERY CELL, BATTERY, AND ELECTRIC DEVICE

Resumen de: US20260341888A1

A battery cell, a battery, and an electric device. The battery cell includes a housing and a one-way valve. The housing has a wall portion. The one-way valve includes a valve body and a valve core. The valve body is arranged on an outer surface of the wall portion, and at least part of the valve body protrudes from the outer surface of the wall portion. The valve body has a valve cavity inside. The valve core is arranged in the valve cavity; the valve core is used to seal an air inlet of the valve cavity, and the valve core is configured to open the air inlet under the action of gas inside the housing and release gas inside the battery cell.

BATTERY CELL, BATTERY, AND ELECTRICAL DEVICE

Resumen de: US20260341889A1

A battery cell, a battery, and an electrical device. The battery cell includes a housing and an exhaust assembly. The housing has a wall portion, and the exhaust assembly is arranged on the wall portion. The exhaust assembly includes a one-way valve and a gas-permeable film assembly, and the exhaust assembly is configured to discharge gas from inside the housing.

DEFECT DETECTION METHOD AND SYSTEM

Resumen de: US20260340806A1

The present application involves: obtaining battery cell images acquired from multiple angles, the battery cell images including a tab portion of a battery cell; performing, by a target detection model, tab defect detection on the battery cell images acquired from multiple angles to obtain a tab detection result, the target detection model being configured to perform tab positioning and tab defect identification; and completing defect detection based on the tab detection result. By using a target detection model to perform tab defect detection on battery cell images acquired from multiple angles, a defect in a tab portion is accurately detected.

FUEL CELL SYSTEM

Resumen de: US20260341848A1

This fuel cell system includes: an FC; a motor; a first power line that connects the FC and the motor; a battery; a second power line that connects the battery and the first power line; a variable resistor that is provided to the first power line and is configured so as to be able to change the resistance value; and an ECU that controls the resistance value of the variable resistor so that the current value of the FC is in an allowable current use range.

A process for producing carbon impurity reduced/carbon impurity free lithium sulfide, said carbon impurity reduced/carbon impurity free lithium sulfide, and its use for producing solid-state electrolytes and solid-state batteries

Resumen de: US20260337024A1

The invention relates to a process for the production of lithium sulfide reduced in carbon impurity or free from carbon impurity, in which lithium sulfate and optionally lithium sulfit, lithium disulfate and/or other lithium sulfur oxides, and carbon impurity containing lithium sulfide are treated with hydrogen gas at temperautres in range from 300 to 600 °C. The invention further relates to a lithium sulfide producible in this manner, the carbon impurity content of which is less than 2.0% by weight, based on the weight of the lithium sulfide. This lithium sulfide is used for the production of battery components, preferably solid electrolytes, and solid-state batteries.

ELECTRODE ACTIVE MATERIAL, ELECTRODE, AND BATTERY

Resumen de: US20260341680A1

An electrode active material (10) of the present disclosure includes an oxide particle (1) containing titanium and not containing lithium, and a carbon material (2). The oxide particle (1) has a plurality of pores (11) having an average pore diameter(S) of 50 nm or more and 200 nm or less. The carbon material (2) exists inside the pores (11). An electrode (100) of the present disclosure includes the electrode active material (10) and a solid electrolyte (20) in contact with the electrode active material (10). A battery (1000) of the present disclosure includes a positive electrode (200), a negative electrode (300), and an electrolyte layer (400) placed between the positive electrode (200) and the negative electrode (300). The positive electrode (200) or the negative electrode (300) includes the electrode (100).

A METHOD FOR RECOVERING METALS FROM BLACK MASS FROM RECYCLING OF SPENT LITHIUM-ION BATTERIES

Resumen de: US20260341824A1

A method for recovering metals from black mass from recycling of spent lithium-ion batteries, characterized in that it comprises the following steps: a) leaching the black mass with sulfuric acid (VI) with the addition of H2O2 in order to obtain an extract comprising metals;b) adding iron dust to the extract in order to cement copper and then separating the precipitated copper from the extract;c) adding a manganese oxidizing agent to the extract and then separating the resulting MnO2 from the extract;d) alkalizing the extract in order to precipitate iron (III) hydroxide or iron (III) oxyhydroxide or a mixture thereof and then separating the resulting precipitate from the extract;e) alkalizing the extract in order to precipitate nickel (II) hydroxide and cobalt (II) hydroxide, or nickel (II) carbonate and cobalt (II) carbonate, separating the resulting precipitate from the extract to obtain a lithium-containing solution, solubilizing the separated precipitate in hydrochloric acid and then selectively separating nickel ions and cobalt ions from the obtained solution in a column filled with ion exchange resin, wherein the elution of nickel ions is carried out with a hydrochloric acid solution, and the elution of cobalt ions is carried out with water, to obtain a nickel ions solution and a cobalt ions solution, followed by adding oxalate solution to the obtained nickel ion solution and cobalt ion solution in order to precipitate nickel oxalate and cobalt oxalate, and then separat

POSITIVE ELECTRODE FOR LITHIUM BATTERY AND LITHIUM BATTERY

Resumen de: US20260341721A1

This positive electrode for a lithium battery includes a positive electrode active material containing manganese dioxide and a conductive auxiliary agent. The conductive auxiliary agent includes carbon black. The carbon black has an average primary particle size of 30 nm or more and a specific surface area of 1000 m2/g or more, and contains Al.

LEAD-ACID BATTERY

Resumen de: US20260341802A1

Disclosed is a lead-acid battery including: a positive electrode plate; a negative electrode plate; a separator interposed between the positive electrode plate and the negative electrode plate; and an electrolyte solution. The negative electrode plate includes a negative electrode material, the negative electrode material includes a Bi element, a content of the Bi element in the negative electrode material is 100 ppm or more and 300 ppm or less on a mass basis, the separator includes a crystalline region and an amorphous region, a ratio R represented by A1/(A1+A2) is 0.50 or more in an X-ray diffraction spectrum of the separator, A1 is an area of a first diffraction peak having a maximum peak height among diffraction peaks corresponding to the crystalline region, and A2 is an area of a second diffraction peak having a second highest peak height among the diffraction peaks corresponding to the crystalline region.

POWER STORAGE DEVICE BINDER AQUEOUS SOLUTION, POWER STORAGE DEVICE SLURRY, POWER STORAGE DEVICE ELECTRODE, POWER STORAGE DEVICE SEPARATOR, POWER STORAGE DEVICE SEPARATOR/ELECTRODE LAMINATE, AND POWER STORAGE DEVICE

Resumen de: US20260337322A1

A power storage device binder aqueous solution includes a water-soluble polymer, (meth)acrylamide, and (meth)acrylonitrile. The water-soluble polymer includes 0.01 mass % to 1 mass % of a polymerization initiator unit, and a content of the (meth)acrylamide with respect to the water-soluble polymer is 0.01 mass ppm or more and less than 1000 mass ppm.

POUCH TYPE BATTERY CELL

Resumen de: US20260341868A1

A battery cell may include an electrode assembly, a pouch configured to accommodate the electrode assembly and having a folded side and three sealed sides, an electrode lead configured to extend from the electrode assembly and protrude outward from the pouch, and an insulating, heat-resistant and fire-resistant barrier member having a box shape provided with a slit-type lead hole and one open end. In addition, a length, width and height of the barrier member may be X, Y and Z, respectively. Further, the electrode lead may be configured to protrude from the barrier member through the lead hole, and five sides of the battery cell excluding a folded side may be configured to be covered by the barrier member.

ELECTRODE PLATE SLITTING SYSTEM AND METHOD

Resumen de: US20260336145A1

An electrode plate slitting system includes an electrode plate cutting apparatus configured to slit a first electrode plate into a plurality of second electrode plates, wherein a width of the first electrode plate is greater than a width of the second electrode plate; an information collection module configured to collect information about the second electrode plates; and a processor configured to acquire the information and determine, according to the information, whether the second electrode plates have a deviation, and if the deviation has occurred, the processor being configured to perform deviation rectification on the first electrode plate. Also provided is an electrode plate slitting method. The electrode plate slitting system and method reduces the batch scrapping of electrode plates and the inflow of defective electrode plates into subsequent production processes.

BATTERY CELL FORMING APPARATUS AND METHOD

Resumen de: WO2026223433A1

Provided are a battery cell forming apparatus and method. The battery cell forming apparatus comprises a battery cell pressing mechanism. The battery cell pressing mechanism comprises: a first pressing part (10), comprising a plurality of first pressing segments (11) that are respectively independently movable, and configured to make the plurality of first pressing segments (11) move toward or away from a battery cell in a synchronous or asynchronous manner; and a second pressing part (20), located on the opposite side of the first pressing part (10) in a first direction (z), comprising a plurality of second pressing segments (21) that are respectively independently movable, and configured to make the plurality of second pressing segments (21) move toward or away from the battery cell in a synchronous or asynchronous manner, wherein the first direction (z) is parallel to a pressing direction of the battery cell pressing mechanism. The plurality of first pressing segments (11) may be divided into at least two groups of first pressing segments (11) that move relatively independently, and/or the plurality of second pressing segments (21) may be divided into at least two groups of second pressing segments (21) that move relatively independently.

METAL PHOSPHATES AS THE SEPARATOR COATING MATERIALS

Nº publicación: US20260341905A1 29/10/2026

Solicitante:

PACIFIC IND DEVELOPMENT CORPORATION [US]
PACIFIC INDUSTRIAL DEVELOPMENT CORPORATION

Resumen de: US20260341905A1

A separator for use in an electrochemical cell, such as a cell used in a secondary Li-ion battery and a method of manufacturing such a separator. The separator includes a polymeric or aramidic membrane with an inorganic material in the form of one or more metal phosphates applied in the form of a coating to at least a portion of the polymeric or aramidic membrane. The separator is positioned between the cathode and the anode, such that the separator separates the anode and a portion of the electrolyte from the cathode and the remaining portion of the electrolyte; wherein the separator is permeable to the reversible flow of ions there through.