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Method Of Preparing Electrode For Secondary Battery

Resumen de: US20260066259A1

A method of preparing an electrode for a secondary battery, which effectively reduces a residual amount of moisture in the electrode and may significantly improve electrode adhesion at the same time, is disclosed. The method of preparing an electrode for a secondary battery includes steps of: preparing an electrode in which an electrode active material layer is formed; rolling the electrode; and drying the rolled electrode. The drying is performed such that a temperature that is from 170° C. to 210° C. is reached during the drying of the rolled electrode. For example, a temperature that is above a melting point (170° C.) of a polyvinylidene fluoride (PVDF)-based binder resin may be reached the during drying of the rolled electrode.

SYSTEM AND METHODS FOR MANUFACTURING A DRY ELECTRODE

Resumen de: US20260066263A1

A system and methods for manufacturing a dry electrode for an energy storage device are disclosed. The system includes a first dry electrode material delivery system configured to deliver a dry electrode material, a first calendering roll, a second calendering roll, and a controller. The second calendering roll is configured to form a first nip between the first calendering roll and the second calendering roll. The first nip is configured to receive the dry electrode material from the first dry electrode material delivery system, and form a dry electrode film from the dry electrode material. The controller is configured to control a rotational velocity of the second calendering roll to be greater than a rotational velocity of the first calendering roll. 62385256

SOLID ELECTROLYTE-ELECTRODE ASSEMBLY, METHODS FOR MAKING, AND AN ALL-SOLID-STATE BATTERY THEREOF

Resumen de: US20260066262A1

A solid electrolyte-electrode assembly, as well as an all-solid-state battery including the assembly are described. For instance, a solid electrolyte-cathode assembly can be formed by co-rolling a plurality of cathode particles and a plurality of solid electrolyte particles, which results in the simultaneous production of the assembly and makes it possible to achieve improved interface resistance between the electrolyte membrane and electrode to improve battery performance. Also, the resulting electrolyte can be thin, which improves the energy density, while also maintaining excellent strength by using an electrode as a support.

NEGATIVE ELECTRODE FOR ALL-SOLID-STATE BATTERY, ALL-SOLID-STATE BATTERY, AND METHOD OF FABRICATING THE SAME

Resumen de: US20260066294A1

Disclosed are negative electrodes, all-solid-state batteries, and fabrication methods thereof. The all-solid-state battery includes a positive electrode layer, a negative electrode layer including a negative electrode current collector, and a negative electrode coating layer on the negative electrode current collector, and a solid electrolyte layer between the positive electrode layer and the negative electrode layer. The negative electrode layer includes lithiophilic metal, carbon, an additive, and a porous polymer composite. The porous polymer composite has a particulate shape. The additive includes a binder. An amount of the porous polymer composite in the negative electrode coating layer is greater than the amount of the additive in the negative electrode coating layer.

NEGATIVE ELECTRODE ACTIVE MATERIAL FOR RECHARGEABLE LITHIUM BATTERY AND RECHARGEABLE LITHIUM BATTERY INCLUDING THE SAME

Resumen de: US20260066295A1

The present invention relates to a negative electrode active material for a rechargeable lithium battery and a rechargeable lithium battery including the same, and the negative electrode active material for a rechargeable lithium battery includes graphite including secondary particles in which primary particles are assembled; and amorphous carbon present inside the secondary particles, wherein a ratio of the average particle diameter D50 of the amorphous carbon to the average particle diameter D50 of the primary particles is 0.1 to 0.5.

DEVICE AND METHOD FOR TRANSFERRING BLANKS

Resumen de: US20260062230A1

The invention relates to a device and a method for transferring blanks to a transfer line, in particular for transferring blanks (10) to a material track, a transport track (14), a rotating roller and/or to products (12) transported along a conveyor belt, the device (1) comprising a positioning system (2) with at least two, in particular three or more, carriages (20) movable along a circumferential track and with a drive system (24), wherein the carriages (20) each have a product holder (22) and are designed to pick up one blank (10) at a time on the product holder (22), transport the blank (10) in a fixed position on the product holder, and transfer the blank (10) to the transfer line, and wherein the drive system (24) is designed to move the carriages (20) along the circumferential track at least in sections independently of one another.

METHOD AND APPARATUS FOR PRODUCING SILICON-CONTAINING MATERIALS

Resumen de: US20260062294A1

A process of producing silicon-containing materials includes converting a gas to a super-heated state in which it is at least partly in plasma form, and contacting the superheated gas with a silicon-containing first starting material to form a mixture including the gas and silicon, where-in the silicon-containing materials are produced by adding to the gas or the mixture a second starting material that can enter into a chemical reaction directly with the silicon in the mixture, or breaks down thermally on contact with the superheated gas and/or the mixture, and steps a. and b. are effected spatially separately from one another.

BATTERY

Resumen de: US20260066507A1

A battery, including a cell, a protection board and an injection-molded plastic structure. The injection-molded plastic structure encloses at least a tab, a top sealing edge, a main board and a portion of a flexible printed circuit board, an output end of the flexible printed circuit board is located outside the injection-molded plastic structure, and a groove is formed on the injection-molded plastic structure at a position corresponding to where the output end extends, with at least a portion of the output end being located within the groove. The groove has a minimum groove width of not less than 2 mm in a first direction, and has a groove depth of not less than 0.5 mm in a second direction. In this way, the injection-molded plastic structure provides effective protection for elements such as the protection board, and ensures a sufficient space for movement of the flexible printed circuit board.

FLEXIBLE PRINTED CIRCUIT AND BATTERY PACK

Resumen de: US20260068049A1

Disclosed are a flexible printed circuit and a battery pack. The flexible printed circuit comprises a flexible cable, wherein a window portion is formed in the middle of the flexible cable, and a flexible die-cutting circuit is electrically connected to the window portion. The flexible cable is a flexible flat cable. The flexible die-cutting circuit or a small flexible printed circuit is electrically connected to the window portion. The window portion is rectangular. The invention has the beneficial effect that an FCC manufactured by a new process is bendable while original FFCs and FDCs are non-bendable.

SEPARATOR FOR SODIUM BATTERY, SECONDARY BATTERY, AND ELECTRIC APPARATUS

Resumen de: US20260066337A1

A separator for a sodium battery, and a sodium battery, a secondary battery, and an electric apparatus comprising the separator. The separator for the sodium battery has a first surface and a second surface along its thickness direction, and a porosity of the separator decreases gradually from the first surface to the second surface.

SOLID ELECTROLYTE-ELECTRODE ASSEMBLY, METHODS FOR MAKING, AND AN ALL-SOLID-STATE BATTERY THEREOF

Resumen de: US20260066287A1

A solid electrolyte-electrode assembly, as well as an all-solid-state battery including the assembly are described. For instance, a solid electrolyte-cathode assembly can be formed by co-rolling a plurality of cathode particles and a plurality of solid electrolyte particles, which results in the simultaneous production of the assembly and makes it possible to achieve improved interface resistance between the electrolyte membrane and electrode to improve battery performance. Also, the resulting electrolyte can be thin, which improves the energy density, while also maintaining excellent strength by using an electrode as a support.

SECONDARY BATTERY

Resumen de: US20260066269A1

The present invention provides a secondary battery including a negative electrode having a negative electrode active material layer containing a negative electrode active material, a positive electrode facing the negative electrode and having a positive electrode active material layer containing a positive electrode active material, a separator interposed between the negative electrode and the positive electrode, and an electrolyte, wherein the negative electrode active material includes a silicon-based active material and an N/P ratio calculated by a specific equation is 1.92 to 2.60.

NEGATIVE ELECTRODE ACTIVE MATERIAL PARTICLE, NEGATIVE ELECTRODE COMPRISING NEGATIVE ELECTRODE ACTIVE MATERIAL PARTICLE, AND SECONDARY BATTERY COMPRISING THE NEGATIVE ELECTRODE

Resumen de: US20260066281A1

A negative electrode active material particle, a negative electrode comprising the same, and a secondary battery comprising the negative electrode are provided. The negative electrode active material particle comprises a core and a coating layer on the core, the core comprising a silicon-based particle, and the coating layer comprising a polymer comprising an aromatic cyclic monomer unit including a heteroatom and having an alkyl group at a side chain, and thereby prevents side reactions such as the production of hydrogen gas during aqueous mixing of a slurry without increase of resistance.

BATTERY CELL, BATTERY, ELECTRICAL APPARATUS, AND ENERGY STORAGE CABINET

Resumen de: US20260066490A1

A battery cell, a battery, an electrical apparatus, and an energy storage cabinet are disclosed. The battery cell includes a shell, multiple pole groups, and multiple electrode terminals. The shell has a wall portion, and the pole groups are received in the shell and arranged along a first direction. Each pole group includes a main body group and two tab groups, the two tab groups being spaced apart along the first direction on one side of the main body group in a second direction and having opposite polarities. The electrode terminals are disposed on the wall portion and spaced apart along the first direction. Two tab groups adjacent in the first direction from two neighboring pole groups share one electrode terminal, while the two farthest tab groups are connected to two respective electrode terminals. This configuration reduces the number of electrode terminals, optimizes production rhythm, and improves manufacturing efficiency.

Molten Lithium Metal Battery Based on Ceramic Electrolyte Sheet

Resumen de: US20260066333A1

A molten lithium metal battery based on a ceramic electrolyte sheet, comprising: a casing in the shape of the Chinese character “” and a ceramic electrolyte sheet, wherein the ceramic electrolyte sheet divides said casing into an upper part and a lower part, the upper part is a negative electrode chamber, the lower part is a positive electrode chamber, a positive electrode material is contained in the positive electrode chamber, and a lithium recess is formed in the negative electrode chamber; gas guide metal tubes, wherein the gas guide metal tubes are connected to and communicated with said casing, and openings of the air guide metal tubes are higher than the bottom surface of the ceramic electrolyte sheet; an upper cover and a negative electrode current collector, wherein the negative electrode current collector passes through the upper cover and is led out from the upper cover, the negative electrode current collector and the upper cover are sealed together by means of an insulating sealing material, the upper cover is arranged at the top of said casing and seals said casing, a negative electrode material is contained in the lithium recess, and a seal is formed between the lithium recess and said casing; and a bottom cover, wherein the bottom cover is connected to the bottom end of said casing.

NEGATIVE ELECTRODE AND PREPARATION METHOD THEREFOR, BATTERY CELL CONTAINING SAME, BATTERY, AND ELECTRIC APPARATUS

Resumen de: US20260066306A1

This application provides a negative electrode and a preparation method therefor, a battery cell containing the same, a battery, and an electric apparatus, where the negative electrode includes a negative electrode current collector and a coating disposed on at least one surface of the negative electrode current collector, the coating includes a flexible carbon material, the flexible carbon material includes micropores with a pore diameter less than or equal to 0.8 nm, a pore volume of the micropores with a pore diameter less than or equal to 0.8 nm is denoted as Vmic, a pore volume of the flexible carbon material is denoted as Vtotal, both in units of cm3/g, and Vmic:Vtotal≥65:100.

SECONDARY BATTERY, BATTERY PACK AND ELECTRONIC DEVICE

Resumen de: US20260066359A1

A secondary battery is provided, including an electrode assembly which includes a negative pole sheet, a first separator, a positive pole sheet, and a second separator stacked and wound in sequence. The negative pole sheet includes a negative coated area and a negative tab protruding from the negative coated area. The positive pole sheet includes a positive coated area and a positive tab protruding from the positive coated area. The negative tab and the positive tab are respectively located on two opposite sides of the electrode assembly, and a direction from the negative tab to the positive tab is a height direction. Along the height direction, an upper end of the negative coated area overhangs an upper end of the positive coated area. Along a direction away from the height direction, a lower end of the negative coated area overhangs a lower end of the positive coated area.

Polyolefin-Based Microporous Membrane, Method for Manufacturing the Same, and Secondary Battery Including the Same

Resumen de: US20260066458A1

Provided are a polyolefin-based microporous membrane and methods for manufacturing the same, a separator comprising the polyolefin-based microporous membrane, and a secondary battery comprising the separator. The polyolefin-based microporous membrane or the separator comprising the same comprises a polyolefin, and has a gas permeability of about 2.5×10−5 Darcy or more, a shrinkage rate in the transverse direction (TD) at 120° C. of about 10% or less, and a BDV index of about 15 or more as represented by the following Equation 1:BDV⁢index⁢=((P2+M4)D×d×ε)×1⁢0⁢0Equation⁢1wherein the variables are defined as follows: P: puncture strength (N/μm) of the polyolefin-based microporous membrane; M: viscosity average molecular weight (×105 g/mol) of polyolefin; D: gas permeability (×10−5 Darcy) of the polyolefin-based microporous membrane; d: average pore size (nm) of the polyolefin-based microporous membrane; and ε: porosity of the polyolefin-based microporous membrane.)

BATTERY PACK AND VEHICLE INCLUDING SAME

Resumen de: US20260066452A1

A battery pack according to an embodiment of the present disclosure may include: a plurality of battery cells; a pack case configured to accommodate the plurality of battery cells and having a venting portion configured to discharge gas generated from the battery cells to the outside; and a protective cover configured to cover at least a portion of the venting portion.

SECONDARY BATTERY

Resumen de: US20260066465A1

A secondary battery includes an electrode stack having a separator, the separator having a first, second and third separator regions, a first negative electrode plate between the first separator region and the second separator region, a first positive electrode plate between the second separator region and the third separator region, an insulating tape on a periphery of the electrode stack, a case receiving the electrode stack and the insulating tape, and a first separator piece between the first negative electrode plate and the second separator region.

BATTERY ARRAY BUSBAR FRAME DESIGNS

Resumen de: US20260066476A1

Battery array busbar frame designs are disclosed for use within traction battery packs. An exemplary battery array may include a busbar frame that includes features that facilitate the use of mechanical fastenerless connections inside the battery array. These features may include legs that can be mounted to a top cover and/or bottom cover of an array housing via an adhesive, and holders that provide an interface for connecting cell spacers to the busbar frame in order to mitigate busbar frame and/or cell spacer motion and increase the structural integrity of the battery array. Gaps between adjacent legs of the busbar frame may further establish coolant flow passages for directing a coolant around battery cells in order to thermally manage the battery array.

RECHARGEABLE LITHIUM-ION MICRO-BATTERY AND METHODS OF MAKING AND USING THE SAME

Resumen de: US20260066328A1

A cylindrical battery having a wound jelly roll configuration that includes an anode current collector having a first surface and an opposing second surface; at least one anode disposed on the first surface of the anode current collector; at least one Li metal film disposed on the first surface anode current collector, wherein the at least one Li metal film is spaced apart from the anode; a cathode current collector having a first surface and an opposing second surface; at least one cathode disposed on the first surface of the cathode current collector; and a first membrane separator positioned between the anode and the cathode.

ELECTRICITY STORAGE APPARATUS

Resumen de: US20260066435A1

An electricity storage apparatus according to the present disclosure includes a plurality of battery modules and a rack that accommodates the battery modules. The rack has a plurality of support plates that supports the battery modules. A bottom surface of each of the battery modules and a main surface of each of the support plates are fastened to each other. Each of the support plates is joined, via a bracket fastened on the main surface of the support plate, to another of the support plates. With such configuration, the electricity storage apparatus according to the present disclosure enables the accommodated battery modules to be sufficiently fixed even when a storage battery vibrates due to earthquake, transportation, and the like. As a result, the electricity storage apparatus according to the present disclosure enables the quake resistance to be improved.

BATTERY ASSEMBLY AND BATTERY PACK

Resumen de: US20260066479A1

A battery assembly includes: a stack including a plurality of battery cells arranged side by side in a first direction; a bus bar module provided on the stack; and a fitting member fitted to an end portion of a housing of at least one of the plurality of battery cells in a second direction orthogonal to the first direction. The fitting member has an engagement portion, and the engagement portion is engaged with the bus bar module so as to position the bus bar module with respect to the stack at least in the first direction.

CONDUCTIVE MODULE

Nº publicación: US20260066482A1 05/03/2026

Solicitante:

YAZAKI CORP [JP]
Yazaki Corporation

Resumen de: US20260066482A1

A conductive module includes a bus bar that is physically and electrically connected to an electrode terminal of a battery cell, a flexible printed circuit that is molded in a rectangular shape extending in an arrangement direction of the plurality of battery cells, and electrically connects between a battery monitoring unit and the bus bar, and an electric wire for each of the bus bars that has flexibility and electrically connects the bus bar to the flexible printed circuit. The flexible printed circuit includes a circuit conductor for each of the bus bars that electrically connects the bus bar to the battery monitoring unit, and a pad portion for each of the bus bars that is provided adjacent to the bus bar and is electrically connected to the circuit conductor for the bus bar.