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1356
resultados
Última actualización
12/08/2025 [07:12:00]
Resultados 625 a 650 de 1356
Resumen de: EP4597595A1
An electrode assembly (100) including: a first electrode plate (110) including a first electrode substrate (111) having a first electrode active material layer (112) thereon; a first separator (120); a second electrode plate (130) including a second electrode substrate (131) having a second electrode active material layer (132) thereon; and a second separator (140). The first electrode plate (110), the first separator (120), the second electrode plate (130), and the second separator (140) are sequentially stacked and wound about a winding axis, and the first electrode substrate (111), the first separator (120), and the second separator (140) extend at least one turn beyond a distal end (130a) of the second electrode plate (130) in the wound electrode assembly (100).
Resumen de: EP4597657A1
An electrode assembly according to one embodiment of the present disclosure is an electrode assembly in which an electrode unit and an assembly cathode are sequentially stacked, wherein the electrode unit comprises: an anode whose first surfaces are folded in directions facing each other; a unit cathode located between the folded first surfaces; and a first separator located between the first surface and the unit cathode, wherein the first surface surrounds the upper and lower surfaces of the unit cathode and one side surface of the unit cathode, and both end parts of the first surface extend along the upper and lower surfaces of the unit cathode.
Resumen de: EP4597683A1
The present disclosure relates to an electrode for a lithium secondary battery which not only effectively suppresses heat generation or ignition and thus has further improved stability, but also enables provision of batteries exhibiting excellent electrochemical characteristics, and a lithium secondary battery comprising the same.
Resumen de: EP4597137A1
A battery abnormality diagnosis apparatus according to an embodiment disclosed herein includes an obtaining unit configured to obtain voltage-state-of-charge (SOC) profiles of a plurality of battery units, an identifying unit configured to identify a designated first number of ranks of each of the plurality of battery units, based on the voltage-SOC profiles, and a diagnosing unit configured to diagnose abnormality of the plurality of battery units, based on changes of the ranks.
Resumen de: EP4597018A1
A cooling plate assembly, an assembly method applied to the cooling plate assembly, a battery module and a battery pack are provided. The cooling plate assembly includes a cooling plate configured to control a temperature of the battery module; and at least one current collector connected to an end portion of the cooling plate through bonding. The cooling plate assembly is conducive to improving the connection stability between the cooling plate and the current collector and the assembly efficiency.
Resumen de: EP4597638A1
Disclosed are a negative electrode for a rechargeable lithium battery and a rechargeable lithium battery including the same. The negative electrode for the rechargeable lithium battery includes a current collector, a negative active material layer including an expansion reduction binder, a rubber binder, and a negative active material; and a functional layer between the current collector and the negative active material layer, wherein an amount of the expansion reduction binder is about 0.3 wt% to about 1 wt% based on 100 wt% of the negative active material layer, and an amount of the rubber binder is about 1 wt% to about 1.5 wt% based on 100 wt% of the negative active material layer.
Resumen de: EP4597621A1
Provided are a positive electrode active material, a positive electrode plate, a battery cell, a battery and an electrical apparatus, which belongs to the technical field of secondary batteries. The positive electrode active material includes a lithium-rich manganese-based material and a lithium-containing phosphate, in which, the lithium-rich manganese-based material includes solid particles and hollow particles, the hollow particle including a shell and a cavity provided inside the shell. Both the rate performance and the volume energy density of the battery cell can be taken into consideration in the technical solution of embodiments of the present invention.
Resumen de: EP4597741A1
A battery cell (10), a battery (100), and a power-consuming apparatus are provided. The battery cell (10) includes a housing (11), an electrode terminal (12), a first connecting member (13), and an insulating film (14). A first end wall (110) is provided with a first through-hole (1101), and the first through-hole (1101) passes through the first end wall (110) in a thickness direction of the first end wall (110). The electrode terminal (12) is mounted in the first through-hole (1101). At least a part of the first connecting member (13) is located on an outer side of the first end wall (110) in the thickness direction, and the first connecting member (13) is disposed in a circumferential direction of the electrode terminal (12) and is connected to the electrode terminal (12). The insulating film (14) covers at least a part of an outer surface of the first end wall (110), the insulating film (14) is provided with a second through-hole (140) for exposing the electrode terminal (12), and the insulating film (14) is connected to the first connecting member (13). The technical solution can improve reliability of the battery.
Resumen de: EP4597626A1
Provided is a positive electrode material for a lithium ion secondary battery, including aggregated particles including aggregated multiple primary particles of a positive electrode active substance containing lithium iron phosphate coated with a carbonaceous film, the positive electrode active substance having a prescribed composition containing lithium iron phosphate, the positive electrode material having a change rate of a lattice area of a b-c axis plane before charging and after full charging (((lattice area before charging-lattice area after full charging)/lattice area before charging) × 100) of 1.10% or more and 1.33% or less. The positive electrode material has excellent cycle characteristics and high input and output characteristics in using as a positive electrode of a lithium ion secondary battery.
Resumen de: EP4597679A1
A non-aqueous electrolyte secondary battery comprises: an electrode body obtained by winding a negative electrode (12) in which a negative electrode mixture layer (32) is formed on a negative electrode core body (30) and a positive electrode, with a separator therebetween; and a non-aqueous electrolyte. The non-aqueous electrolyte secondary battery is characterized in that: the negative electrode (12) has, at the winding direction inner-end side of the electrode body, a non-facing part (12a) which does not face the positive electrode with the separator therebetween; the non-facing part (12a) has a mixture non-facing part (12c) in which the negative electrode mixture layer (32) is formed on at least one surface of the negative electrode core body (30), from the winding direction outer end of the non-facing part (12a) and toward the winding direction inner side; and the average value of a mixture surface distance which is between the mixture non-facing part (12c) and the negative electrode (12e) positioned one turn outward of the mixture non-facing part (12c) is not less than 90 µm.
Resumen de: EP4597607A1
A disclosed positive electrode is a positive electrode for a nonaqueous electrolyte secondary battery. The positive electrode includes a positive electrode mixture layer. The positive electrode mixture layer contains a positive-electrode active material, a conductive material, a fluorine-containing polymer, and a dispersant. The positive-electrode active material includes a composite oxide represented by a composition formula LiyNixM(1-x)O2-δ (where x, y, and δ satisfy 0.6≤x≤1, 0
Resumen de: EP4597674A1
To address the issue that it is difficult to ensure both cycle performance and storage performance for the existing high-voltage lithium cobalt oxide battery, the application provides a lithium-ion battery, which includes a positive electrode, a negative electrode and a non-aqueous electrolyte. The positive electrode includes a positive electrode material layer; the positive electrode material layer includes a positive electrode active material, which includes a lithium cobalt oxide doped or coated with elment aluminum; the non-aqueous electrolyte includes a non-aqueous organic solvent, a lithium salt and an additive; the additive includes a first additive and a second additive, the first additive includes a cyclic sultone, and the second additive includes a compound represented by structural formula 1:the lithium-ion battery meets the following requirements: 0.1≤a/c≤5; 0.3≤b/c≤20; and 0.2 ≤a≤1, 0.1≤b≤5, 0.1≤c≤5. The lithium-ion battery provided by the application has good high-temperature storage performance and high-temperature cycle performance, and is beneficial to prolonging the battery service life.
Resumen de: EP4597606A1
A positive electrode (11) in a non-aqueous electrolyte secondary battery (10) according to an embodiment of the present invention contains, as a positive-electrode active material, a lithium transition metal composite oxide that has a layered structure and contains at least 75 mol% of Ni with respect to the total molar quantity of metal elements excluding Li. The lithium transition metal composite oxide is made of secondary particles formed by aggregation of primary particles. At least one selected from the group consisting of Ca and Sr, and at least one selected from the group consisting of W, Mo, Ti, Si, Nb, and Zr, are present at the interface between primary particles inside the secondary particles. An electroconductive auxiliary agent within a positive-electrode compound layer (31) includes at least one selected from the group consisting of particulate carbon materials having an average grain diameter of 20 nm or less and fibrous carbon materials having an average fiber diameter of 20 nm or less, the carbon materials containing carbon.
Resumen de: EP4597593A1
This manufacturing device 1 for a mixture sheet S comprises: a first forming roller 4 and a second forming roller 6 that press a particulate dry-type electrode mixture P into a sheet form, thereby forming the mixture sheet S, the second roller 6 supporting and conveying the mixture sheet S on a circumferential surface 6b; and a first stretching roller 8 that stretches the mixture sheet S, the first stretching roller 8 being disposed so that a gap G1 between the first stretching roller 8 and the second forming roller 6 becomes smaller than the thickness T1 of the mixture sheet S that is supported by the second forming roller 6. The positional relationship between the first forming roller 4, the second forming roller 6, and the first stretching roller 8 is determined so that the rollers extend in a direction in which a first virtual line L1 and a second virtual line L2 intersect, the first virtual line L1 passing through a rotational axis 4a of the first forming roller 4 and a rotational axis 6a of the second forming roller 6, and the second virtual line L2 passing through the rotational axis 6a of the second forming roller 6 and a rotational axis 8a of the first stretching roller 8.
Resumen de: EP4597740A1
A power storage device (10) comprises: an electrode body (14) in which a positive electrode (11) and a negative electrode (12) are wound with a separator (13) therebetween; an exterior body (15) that serves to accommodate the electrode body (14) and has a bottomed cylinder shape with an opening therein; a sealing body (16) for closing the opening; a first insulating member (17); and a second insulating member (18). A safety valve for releasing the internal pressure in the exterior body (15) when said internal pressure rises to a level equal to or greater than a predetermined level is provided to one of the bottom section of the exterior body (15) and the sealing body (16). The first insulating member (17) is arranged between the electrode body (14) and the safety valve, the second insulating member (18) is arranged in a position facing the first insulating member (17) with the electrode body (14) therebetween, and while at a predetermined temperature, the amount of gas generated from the second insulating member (18) is greater than the amount of gas generated from the first insulating member (17).
Resumen de: EP4597599A1
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 m<sup>2</sup>/g or more, and contains Al.
Resumen de: EP4597713A1
A battery pack is disclosed. The battery pack comprises at least one part of a housing, at least one battery system arranged in the at least one part of the housing, at least one containing member contacted with the at least one part of the housing and the at least one battery system, the at least one containing member comprises a self-expendable filler material, the at least one containing member with the self-expendable filler material is contacted with the at least one part of the housing to provide stability to the battery pack and/or to the at least one battery system with respect to the at least one part of the housing.
Resumen de: EP4597718A1
A battery housing (100) for holding a plurality of battery cells (102) for a vehicle, the battery housing comprising: a cell compartment (104) comprising an opening (106); a vent channel (108) fluidly connected to the cell compartment via the opening, the vent channel comprising a first outlet (110) and a second outlet (112), each of the first and second outlet being fluidly connected to an outside of the battery housing; and a thermal expansion material (114) arranged in a flow path between the opening and the first outlet, the thermal expansion material being configured to expand to prevent a flow through the first outlet at a predetermined threshold temperature.
Resumen de: EP4596730A1
A method for recovery of valuable metals according to the present disclosure comprises the steps of: (S1) leaching a sulfate solution from waste battery material; (S2) adding a phosphorus compound to the sulfate solution to precipitate aluminum phosphate; and (S3) isolating the aluminum phosphate from the sulfate solution through solid-liquid separation, wherein the sulfate solution contains metal sulfate at a concentration of 90 g/L or higher.
Resumen de: EP4597615A1
Disclosed herein provides a positive electrode for lithium secondary battery including: a positive electrode current collector; a self-temperature control layer disposed on one or both sides of the positive electrode current collector, but disposed to cover a portion of the positive electrode current collector; and a positive electrode active material layer disposed on: an exposed positive electrode current collector region not covered by the self-temperature control layer; and the self-temperature control layer, wherein the self-temperature control layer includes a positive temperature coefficient (PTC) material.
Resumen de: EP4596474A1
A method for coating deviation correction, comprising: acquiring a first distance and a second distance, wherein the first distance is a distance from the edge of a coating area on a first surface of an electrode sheet substrate to a reference edge, and the second distance is a distance from the edge of a coating area on a second surface of the electrode sheet substrate to the reference edge; and determining a target deviation correction amount in the coating process on the basis of the first distance, the second distance, and at least one preset deviation correction amount. According to the method, the target deviation correction amount can be determined with high efficiency and accuracy. Also disclosed are a device for coating deviation correction and a computer readable storage medium.
Resumen de: EP4597597A1
A coating deviation correction method, comprising: acquiring a plurality of first distances and a plurality of second distances, wherein each of the plurality of first distances is the distance between the edge of a coating area on a first surface of an electrode sheet substrate and a reference edge, each of the plurality of second distances is the distance between the edge of a coating area on a second surface of the electrode sheet substrate and the reference edge, and the plurality of first distances and the plurality of second distances are obtained by sampling multiple times in one sampling period; and determining a target deviation correction amount in the coating process on the basis of the plurality of first distances, the plurality of second distances, and the at least one preset deviation correction amount. The method can effectively improve the performance of batteries. The present invention further relates to a coating deviation correction device.
Resumen de: EP4597614A1
The present invention relates to: a negative electrode for an all-solid-state battery; and an all-solid-state battery comprising the negative electrode. More specifically, the present invention comprises: a pre-lithiated silicon negative electrode; a positive electrode; and a sulfide-based solid electrolyte disposed between the negative electrode and the positive electrode, wherein an interfacial layer is included between the solid electrolyte and a negative electrode active material.
Resumen de: EP4597631A2
The invention pertains to the use of porous, chemically interconnected, carbon nanofibres-comprising carbon networks as electrochemically active material in the anode of lithium or sodium batteries. It has been found that said carbon nanofibres-comprising carbon networks can beneficially be used in the anode of lithium or sodium batteries when added in an amount of 10 - 100 wt%. The benefits include a high capacity, high lifetime (stability over extended cycling), high charge and discharge rate and being resilient during manufacture and use. The porous, chemically interconnected, carbon nanofibres-comprising carbon networks can be used in the anode of lithium or sodium batteries of many areas of technology, such as smartphones, laptops and electric and hybrid vehicles.
Nº publicación: EP4597669A1 06/08/2025
Solicitante:
CONTEMPORARY AMPEREX TECHNOLOGY HONG KONG LTD [HK]
Contemporary Amperex Technology (Hong Kong) Limited
Resumen de: EP4597669A1
The present application refers to secondary battery and battery module, battery pack and apparatus including the secondary battery. In particular, the secondary battery includes a housing as well as an electrode assembly and an electrolyte contained in the housing; the electrode assembly includes a positive electrode plate, a negative electrode plate and a separator, and the positive electrode plate includes a positive current collector and a positive electrode film that is disposed on at least one surface of the positive electrode current collector and includes a positive electrode active material; the positive electrode active material includes one or more of lithium nickel cobalt manganese oxide and lithium nickel cobalt aluminum oxide; the negative electrode plate includes a negative electrode current collector and a negative electrode film that is disposed on at least one surface of the negative electrode current collector and includes a negative electrode active material; the negative electrode active material includes silicon-based material and carbon material; and the secondary battery satisfies: 0.05≤Z≤0.6. The secondary battery has the characteristics including high energy density, fast charging and long cycle life.
BOPI
Sede Electrónica
