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METHOD OF MAKING A PRECURSOR FOR A CATHODE ACTIVE MATERIAL

Resumen de: WO2025078192A1

The present invention is directed towards a process for making a particulate (oxy)hydroxide or oxide of TM wherein TM comprises nickel and one transition metal selected from Co and Mn and, optionally, at least one further metal selected from Ti, Zr, Mo, W, Al, Mg, Nb, and Ta, and wherein said process comprises the steps of: (a) Providing an aqueous solution (a) containing water-soluble salts of Ni and lithium and of at least one transition metal selected from Co and Mn, and, optionally, at least one further metal selected from Ti, Zr, Mo, W, Al, Mg, Nb, and Ta, and an aqueous solution (P) containing sodium or potassium hydroxide and, optionally, an aqueous solution (y) containing ammonia, wherein the amount of lithium is in the range of from 0.01 to 2.5 mol-% with respect to TM, (a) combining a solution (a) and a solution (|3) and, if applicable, a solution (y) at a pH value in the range of from 10.0 to 12.7 in one or more sub-steps, thereby creating solid particles of a hydroxide containing nickel, said solid particles being slurried, (b) removing the particulate (oxy)hydroxide of TM by a solid/liquid separation method, followed by drying.

BATTERY CELL COVER PLATE, BATTERY CELL, AND BATTERY PACK

Resumen de: EP4794088A1

A cell cover plate, a cell, and a battery pack are provided by the present disclosure. The cell cover plate includes a cover plate body. The cover plate body includes a top surface and a bottom surface opposite to each other. The cover plate body is provided with a liquid injection hole. The liquid injection hole penetrates through from the top surface to the bottom surface. The bottom surface is configured to face a cell pack, at least a partial region on the bottom surface is configured as a flow guiding surface. The flow guiding surface is adjacent to the liquid injection hole. The flow guiding surface is inclined from the liquid injection hole in a direction away from the top surface.

CONTAINER, ENERGY STORAGE APPARATUS, ENERGY STORAGE SYSTEM AND CHARGING NETWORK

Resumen de: EP4793196A1

Disclosed in the present application are a container, an energy storage apparatus, an energy storage system and a charging network. The energy storage apparatus comprises containers. There are m containers, where m>2, and the m containers are arranged in the direction of height of the containers. The size of each container in the direction of length thereof is consistent with the size of a standard container in the direction of length thereof, the size of each container in the direction of width thereof is consistent with the size of a standard container in the direction of width thereof, the size of each container in the direction of height thereof is smaller than the size of a standard container in the direction of height thereof, and the sum of the sizes of ml adjacent containers among the m containers in the direction of height thereof is equal to the sum of the sizes of n standard containers in the direction of height thereof. The size of ml containers in the direction of height thereof is equal to the size of n standard containers in the direction of height thereof, such that the space occupied by ml stacked containers is the same as the space occupied by n standard containers, thereby improving the space utilization rate of container placement, and reducing the container transportation cost, thus reducing the use cost of energy storage apparatuses.

NONAQUEOUS ELECTROLYTE SECONDARY BATTERY AND ELECTRODE USING SAME

Resumen de: EP4794028A1

A nonaqueous electrolyte secondary battery includes a first electrode, a second electrode, a nonaqueous electrolyte, and a separator provided between the first electrode and the second electrode. The first electrode includes a first current collector and a first active material layer supported on the first current collector. The first active material layer contains a first active material, a binder, and an additive. The additive is a polymer material having a melting point or thermal decomposition temperature of 200°C or higher and 500°C or lower. In a cross section of the first active material layer, the polymer material forms a plurality of island-shaped regions and is dispersed therein. When the first active material layer is increased in temperature from 25°C to 400°C or higher, the area of the island-shaped regions increases to four times or more in the cross section of the first active material layer.

THERMALLY CONDUCTIVE INTERFACE DESIGN

Resumen de: US2025121536A1

0000 A thermally conductive interface device produced from a thermally conductive interface material is disclosed. The device may be employed in a battery system of an electric or hybrid vehicle. The thermally conductive interface material comprises a composition of at least one silicone base, at least one inorganic filler, at least one silicone oil, a least one peroxide cross-linking agent, and/or at least one of a flame retardant and a colorant. The inorganic fillers and/or the silicone oils may be functionalized or non-functionalized. The silicone base may be a high consistency rubber (HCR) silicone.

NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY AND ELECTRODE USED THEREFOR

Resumen de: EP4794030A1

A nonaqueous electrolyte secondary battery includes a first electrode, a second electrode, a nonaqueous electrolyte, and a separator provided between the first electrode and the second electrode. The first electrode includes a first current collector and a first active material layer supported on the first current collector. The first active material layer contains a first active material, a binder, and an additive. The additive is a polymer material having a melting point or thermal decomposition temperature of 200°C or higher and 500°C or lower. The polymer material has a linear structure.

BATTERY PACK

Resumen de: EP4794089A1

0001 A battery pack (100) includes an elastic body (20) on a portion of each of the inner surfaces (12a) of a pair of lid parts (12). The pair of lid parts (12) are secured to the respective end surfaces of a battery block (2) housed in the housing space of a casing body (11). A gap (GP) is formed between each of the pair of lid parts (12) and an edge (11a) of a corresponding open end of the casing body (11). The lid part (12) includes: a lid body (13) that is a flat board; and a wall part (14) projecting from the inner surface of the lid body (13). The elastic body (20) is disposed to abut a surface of the wall part (14) that faces the inner surface of the casing body (44). The elastic body (20) includes an inclined surface (21) flaring out toward the inner surface of the lid part (12). A portion of the inclined surface (21) enters the gap (GP). A corner portion (19) of the casing body (11) that is located between an edge (11a) of the open end of the casing body (11) and the inner surface (11b) of the casing body (44) abuts the inclined surface (21).

BATTERY, ENERGY STORAGE DEVICE, AND ENERGY STORAGE SYSTEM

Resumen de: EP4794100A1

0001 The present disclosure provides a battery, an energy storage device, and an energy storage system. The battery of the present disclosure includes a positive electrode sheet, a separator, and a negative electrode sheet. The separator is disposed between the positive electrode sheet and the negative electrode sheet. The separator includes a substrate film, a first adhesive layer, and a second adhesive layer. The first adhesive layer is disposed between the substrate film and the positive electrode sheet for bonding the substrate film to the positive electrode sheet, and the second adhesive layer is disposed between the substrate film and the negative electrode sheet for bonding the substrate film to the negative electrode sheet. The battery satisfies the relationship: 0.85≤(Fc·Wc)/(Fa·Wa)≤6.36; where Fc is the peel strength between the first adhesive layer and the positive electrode sheet, Wc is the coating amount per unit area of the first adhesive layer on the substrate film, Fa is the peel strength between the second adhesive layer and the negative electrode sheet, and Wa is the coating amount per unit area of the second adhesive layer on the substrate film.

ANHYDROUS IRON PHOSPHATE AND PREPARATION METHOD THEREFOR, POSITIVE ELECTRODE MATERIAL AND PREPARATION METHOD THEREFOR, POSITIVE ELECTRODE SHEET, AND SECONDARY BATTERY

Resumen de: EP4793231A1

0001 Provided is an anhydrous ferric phosphate and a preparation method thereof, a cathode electrode material and a preparation method thereof, a cathode electrode sheet, and a secondary battery, belonging to the field of a secondary battery. In terms of weight percentage, a quantity proportion of particles with a particle size greater than or equal to 0.01 µm and less than 0.1 µm in primary particles of the anhydrous ferric phosphate is 10%-30%, a quantity proportion of particles with a particle size of 0.1 µm-0.2 µm is 50%-60%, a quantity proportion of particles with a particle size greater than 0.2 µm and less than 0.4 µm is 15%-30%, and a quantity proportion of particles with a particle size of 0.4 µm-0.6 µm is 0.2%-10%. The present disclosure is beneficial for obtaining a well-dispersed anhydrous ferric phosphate by controlling particle gradation, which serves as a basis for preparing a highly compacted cathode electrode material and is advantageous for obtaining a cathode electrode material with high compact density, good rate performance, and high charging and discharging efficiency.

SUPPORTING SYSTEM FOR SUPPORTING A BATTERY ELONGATED STRUCTURE

Resumen de: SE2351182A1

SUMMARYA supportive system (140) is described, for supporting an elongated structure (130). The system comprises a first holding element (201) and a second holding element (202). The first element (201) features a receiving section (211) and a locking section (212) with a locking member (220), mating depression (221), and a groove (240) spanning both sections. This groove (240) has distinct profiles in the two sections. The second element (202) has a rim (250) and a beam (230) with a cantilevered hook (231). The rim (250) fits into the groove (240) and the hook (231) into the depression (221) of the first element (201). Together, they embrace the structure (130). The second element (202) slides from the receiving to the locking section, with the rim (250) and hook (231) aligning with the corresponding features of the first element (201).

METHOD FOR ASSEMBLING AN ELECTRIC BATTERY PACK

Resumen de: WO2025078700A1

The invention relates to a method for assembling an electric battery pack (1), comprising the following steps: - providing a rack (3) that defines a plurality of open recesses (5); - providing at least one set of cells (13) comprising a plurality of electrochemical cells (15) and a plurality of spacers (17) separating the electrochemical cells (15) from one another; and - inserting the at least one set of cells (13) into one of the recesses (5); characterised in that compressible spacers (17) are provided, and in that the at least one set of cells (13) is compressed in order to be able to insert the at least one compressed assembly (13) into one of the recesses (5), so that the at least one compressed assembly (13) remains compressed.

APPARATUS FOR FIRING CATHODE MATERIAL OF SECONDARY BATTERY

Resumen de: EP4793582A1

An apparatus for calcining a positive electrode material of a secondary battery comprises a temperature rising section extending in a first direction of a horizontal direction, a temperature maintaining section connected to the temperature rising section and extending in the first direction, and a cooling section connected to the temperature maintaining section and extending in a second direction different from the first direction in the horizontal direction.

BATTERY PACK, STRUCTURE, AND METHOD FOR MANUFACTURING MICA PLATE

Resumen de: EP4794086A1

0001 Provided is a battery pack including a mica plate that is resistant to damage and is lightweight. The battery pack of the present invention includes a module with a plurality of battery cells; a case containing the module; and a mica plate disposed between the module and the case and having a first main face and a second main face opposite to the first main face, the battery pack further including a fixing member to fix the mica plate, the mica plate having a first fixing member hole penetrating from the first main face to the second main face, at least one of the module or the case having a second fixing member hole, the fixing member including a head and a body extending from the head, the body of the fixing member passing through the first fixing member hole into the second fixing member hole, thereby fixing the mica plate, the head, in a planar perspective view of the mica plate, covering at least a part of an outline of the first fixing member hole and overlapping the mica plate, an overlapping area, denoted as area S1, between the head and the mica plate being not less than 5.8 × 10<-6> times an area S2 of the mica plate.

PASSIVELY COOLED MODULAR BATTERY POWER STATION

Resumen de: WO2025096234A1

A battery power station including a top panel, a base, and side panels which define a structure, and a first removable end panel and a second removable end panel. The battery power station includes an electronics compartment within the structure including at least one printed circuit board, and a battery compartment within the structure configured to receive a battery pack module. The base includes lateral protrusions having a hook structure configured to interdigitate with corresponding hook structure of the side panels forming a seal between the base and the side panels. The first and second removable end panels include a shell having protrusions extending from an inner surface of the shell and around a periphery of the shell, the protrusions configured to create a seal with the structure forming a seal between the structure and the first and second removable end panels.

LOW-IMPEDANCE STORAGE BATTERY

Resumen de: EP4794085A1

Provided in the present invention is a low-impedance storage battery, which comprises: an accommodation case, which is internally provided with an accommodation space; a first energy storage module, which is used for accumulating or supplying electric energy and is provided in the accommodation case; and a second energy storage module, which is used for storing or supplying a short-time large current and is provided in the accommodation case, the first energy storage module and the second energy storage module being electrically connected to each other. The second energy storage module at least comprises a circuit board, the circuit board having a second positive electrode and a second negative electrode. One side of the accommodation case is provided with a first electrical connector and a second electrical connector. One end of the first electrical connector and one end of the second electrical connector pass out of the accommodation case, and the other end of the first electrical connector and the other end of the second electrical connector are located in the accommodation case. The second positive electrode and the second negative electrode on the circuit board of the second energy storage module are respectively fixed at one end of the first electrical connector and one end of the second electrical connector in the accommodation case.

MULTIFUNCTIONAL POLYNORBORNENE BINDER SYSTEM

Resumen de: US2025118756A1

A cathode electrode assembly is disclosed, the cathode electrode assembly comprising an active material, a current collector, a conductive additive substance, and a polynorbornene-based (PNB) polymer binder configured to bind the active material and the conductive additive substance and maintain electrical contact between the active material and the conductive additive substance with the current collector. An alternative cathode electrode assembly comprising active material, a current collector, a conductive additive substance, a PNB polymer binder, and at least one polyacrylic acid (PAA) side chain configured to interface with the PNB polymer binder is also disclosed. A functional group is further disclosed, the functional group being configured to interface with a binder in a cathode electrode assembly of an electric battery system, the functional group comprising at least one PAA side chain.

APPARATUS FOR FORMING INCISIONS IN ELECTRODE PRECURSORS

Resumen de: WO2025078957A1

An apparatus (10) for forming incisions in electrode precursors comprises a laser head (11) configured to emit a laser beam (LB) having a predetermined wavelength along an optical path (OP), an incision formation zone (NZ) placed along the optical path (OP) of the laser beam (LB), a support device (12) for an electrode precursor (100) comprising a support structure (13) configured to receive and support the electrode precursor (100). The incision formation zone (NZ) is placed along a first portion (16) of the support structure (13) and in the incision formation zone (NZ) the first portion (16) of the support structure (13) is traversed by the optical path (OP) of the laser beam (LB). At least the first portion (16) of the support structure (13) is made of a material that is transparent to a laser beam having said predetermined wavelength.

ENERGY STORAGE ELEMENT

Resumen de: WO2025078530A1

The invention relates to an energy storage element (100) comprising an electrode-separator assembly (104) of strip-shaped electrodes and at least one band-shaped separator, having the sequence anode (105)/separator (156)/cathode (108), which is in the form of a cylindrical winding in which the anode (105), the separator (156) and the cathode (108) are wound around a winding axis A. The anode (105) and the cathode (106) each comprise a current collector (106, 109) with a strip-shaped main region (107, 110) covered with electrode material and a free edge strip (106b, 109b) along a longitudinal edge (106a, 109b) which is not covered with the electrode material. They are arranged inside the electrode-separator assembly (104) such that the free edge strip (106b) of the anode current collector (106) emerges from a first terminal end face (104a) and the free edge strip (109b) of the cathode current collector (109) emerges from a second terminal end face (104b) of the winding. A sheet-metal contact part (112) sits on one of the edge strips (106b, 109b), covers the end face (104a, 104b) from which this edge strip emerges, and is integrally connected to this edge strip. The current collector, on the edge strips (106b, 109b) of which the sheet-metal contact part (112) sits, is arranged in a spiral shape in the cylindrical winding and has an outer turn (181) with a maximum radius R1. The sheet-metal contact part (112) has a maximum radial extension Emax on the end face (104a, 104b) cover

PRODUCTION OF BATTERY CELLS BY MEANS OF ARRESTER EXTENSIONS

Resumen de: WO2025078684A1

The invention relates to a method for producing a battery cell, having at least two battery poles arranged on opposite sides, wherein at least one electrode stack having a multiplicity of anode foils and cathode foils, which are separated from one another by separator foils, is provided, wherein the anode foils have anode arresters at their ends and the cathode foils have cathode arresters at their ends, wherein the anode arresters of the anode foils are bundled at a first side and the cathode arresters of the cathode foils are bundled at a second side of the electrode stack, the bundled anode arresters and/or cathode arresters are connected in an electrically conductive manner at least regionally by means of at least one arrester extension, the at least one electrode stack provided with at least one arrester extension is inserted into a cell housing, the anode arresters are connected directly or indirectly to a collector of a first battery pole in an electrically conductive manner via the at least one arrester extension and the cathode arresters are connected directly or indirectly to a collector of a second battery pole in an electrically conductive manner via the at least one arrester extension, and wherein the cell housing is closed by the first battery pole and the second battery pole. The invention also relates to a battery cell.

A METHOD OF MANUFACTURING POROUS SILICON

Resumen de: CN122003383A

A method of making porous silicon includes providing magnesium silicide with silica nanoparticles and silica microparticles, or by providing magnesium with silica nanoparticles and silica microparticles. Any of the mixtures is then heated to a maximum of 500 DEG C.

ELECTROLYTE SUITABLE FOR SODIUM ION BATTERY AND SODIUM ION BATTERY

Resumen de: EP4794047A1

The present invention relates to an electrolyte suitable for sodium-ion batteries and a sodium-ion battery. To solve the problem of poor room-temperature cycling performance, rate performance, and high-low temperature performance of sodium-ion batteries, the present invention provides an electrolyte suitable for sodium-ion batteries, comprising an electrolyte salt, an organic solvent, and an additive, wherein the organic solvent comprises a carbonate solvent, a fluorinated carboxylate solvent and a fluorinated benzene solvent, and the carbonate solvent does not include ethylene carbonate. The present invention improves the room-temperature cycling performance, rate performance, and high/low temperature performance of sodium-ion batteries through the synergistic cooperation of the carbonate solvent, the fluorinated carboxylate solvent, and the fluorinated benzene solvent.

CYLINDRICAL SECONDARY BATTERY MANUFACTURING APPARATUS AND MANUFACTURING METHOD

Resumen de: EP4794038A1

The present invention relates to a cylindrical secondary battery manufacturing device and a cylindrical secondary battery manufacturing method, which relates to a cylindrical secondary battery manufacturing device capable of effectively performing line balancing in a circulation manufacturing line.According to one example of the present invention, it is possible to provide a cylindrical secondary battery manufacturing device and a cylindrical secondary battery manufacturing method, capable of automatically determining an appropriate quantity of carriers during circulation in a circulation manufacturing line through a master carrier distinguished from general carriers and a sensor sensing the master carrier.

CYLINDRICAL SECONDARY BATTERY MANUFACTURING DEVICE AND MANUFACTURING METHOD

Resumen de: EP4794037A1

0001 The present invention relates to a cylindrical secondary battery manufacturing device and a cylindrical secondary battery manufacturing method, which relates to a cylindrical secondary battery manufacturing device and a cylindrical secondary battery manufacturing method, capable of effectively performing line balancing in a circulation manufacturing line. 0002 According to one example of the present invention, it is possible to provide a cylindrical secondary battery manufacturing device and a cylindrical secondary battery manufacturing method, which are characterized by comprising a plurality of sensors provided along a buffer line provided between preceding equipment and succeeding equipment, to calculate loading degrees of carriers step-by-step in the buffer line; and a controller adjusting process speeds of the preceding equipment and the succeeding equipment based on the step-by-step loading degrees calculated through combinations of outputs of the plurality of sensors, thereby balancing the process speeds of the preceding equipment and the succeeding equipment, and controlling to track the overall target process speed.

FE-NI ALLOY CURRENT COLLECTOR HAVING LOW RESISTANCE MULTILAYER STRUCTURE AND SECONDARY BATTERY COMPRISING SAME

Resumen de: EP4794033A1

0001 The present invention relates to a current collector that has a Fe-Ni alloy formed on at least one surface of a core part composed of copper foil and which exhibits low resistance and high strength while improving corrosion resistance when used as a current collector of a secondary battery to which lithium ions and a lithium metal negative electrode or a sulfide-based solid electrolyte are applied.

BATTERY BOX, MANUFACTURING METHOD FOR BATTERY BOX, BATTERY AND ELECTRIC DEVICE

Nº publicación: EP4794081A1 19/08/2026

Solicitante:

CONTEMPORARY AMPEREX TECHNOLOGY CO LTD [CN]
Contemporary Amperex Technology Co., Limited

Resumen de: EP4794081A1

A battery box (100), a manufacturing method for the battery box (100), a battery (1100) and an electric device, the battery box (100) comprising a first box body (110). The first box body (110) comprises a plate component (111), one side of the plate component (111) being provided with an accommodating space (1101) for accommodating a battery cell (200). The plate component (111) comprises a plate body portion (1111) and a first bent portion (1112), wherein the first bent portion (1112) is bent towards the accommodating space (1101) from the edge of the plate body portion (1111). The fillet radius at the bend of the edge of the plate component (111) is small, so that the width dimension of the first box body (110) can be reduced, thereby reducing the width dimension of the battery box (100); thus, the space occupied by the battery (1100) in the electric device can be reduced, facilitating improvement to the structural compactness and usage performance of the electric device.