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1092
resultados
Última actualización
27/08/2025 [07:25:00]
Resultados 500 a 525 de 1092
Resumen de: WO2025167316A1
A battery cell (20), a battery (100), and an electrical apparatus. The battery cell (20) comprises: a housing (23), the housing (23) comprising a first wall (21); an electrode assembly (22), provided with a tab; an electrode terminal (25), disposed on the first wall (21), the electrode terminal (25) being used to connect to a busbar (30) of the battery (100); and an adapter (24), the adapter (24) being used to connect the tab and the electrode terminal (25). The electrode terminal (25) is formed having a first weld pool area (40) and a second weld pool area (41), the first weld pool area (40) being used to connect to the busbar (30), the second weld pool area (41) being connected to the adapter (24). The first weld pool area (40) and the second weld pool area (41) are staggered along a direction perpendicular to the thickness direction of the first wall (21).
Resumen de: WO2025167256A1
A positive electrode active material and a preparation method therefor, a positive electrode sheet, a battery cell, a battery, and an electrical apparatus, relating to the technical field of batteries. The positive electrode active material comprises: a positive electrode matrix material having a secondary particle morphology, the secondary particles being formed by agglomeration of a plurality of primary particles; and a coating layer, the coating layer being coated on at least a portion of the surface of at least a portion of the primary particles of the positive electrode matrix material, and the coating layer comprising LiaMbOC, where a>0, b>0, and c>0. The ionic radius R of the M element satisfies: 50 pm≤R≤120 pm. The positive electrode active material can improve the cycle performance of a battery cell.
Resumen de: WO2025167014A1
A heat exchange assembly, a battery and an electrical device. The heat exchange assembly is configured to exchange heat with battery cells, comprising a plurality of heat exchange tubes. Each heat exchange tube has two ends; when one of the two ends is used for liquid intake, the other end is used for liquid output. A converging position is formed locally on at least one side of the periphery of the heat exchange assembly, and at least one end of each heat exchange tube extends to the converging position.
Resumen de: WO2025167011A1
A battery (200) and an electrical apparatus (1000). The battery (200) comprises a box body assembly (1010), a battery cell (100), and a heat exchange assembly (1020). The box body assembly (1010) comprises a box body (101) and an expansion beam (105), the expansion beam (105) being disposed in the box body (101), and the battery cell (100) being disposed in the box body (101) and abutting against the expansion beam (105). The heat exchange assembly (1020) comprises a first heat exchange member (102), the first heat exchange member (102) being disposed in the box body (101) and located between the battery cell (100) and the box body (101). The first heat exchange member (102) is used for heat exchange with the battery cell (100), and the first heat exchange member (102) and the expansion beam (105) are disposed spaced apart, so as to cause the first heat exchange member (102) and the expansion beam (105) to be thermally insulated from each other.
Resumen de: WO2025167007A1
The present application relates to a composite thermal insulation pad, a battery and an electric device. The composite thermal insulation pad comprises a composite phase-change layer, which comprises a phase-change material layer and a packaging layer, wherein the packaging layer is arranged on the outer peripheral side of the phase-change material layer, and the phase-change material layer comprises a thermal insulation substrate and a phase-change material, at least part of the phase-change material filling the thermal insulating substrate. The composite phase-change layer exhibits a strain of 8%-20% when being subjected to a stress of 0.5-5 MPa. The composite thermal insulation pad has good service life and thermal insulation performance, is applied to a battery and has a good effect of slowing down thermal runaway of the battery.
Resumen de: WO2025167009A1
Disclosed in the present application are a battery cell winding mandrel device and a battery cell winding apparatus. The battery cell winding mandrel device comprises: a mounting base (10); an assembly housing (20), which is provided with a first end (21) and a second end (22), the first end (21) being fixedly mounted on the mounting base (10), and the second end (22) being a free end; at least one transmission assembly (30) mounted on the assembly housing (20), each transmission assembly (30) comprising a plurality of transmission components (31), the plurality of transmission components (31) being arranged around the axis of the assembly housing (20); and a plurality of suction shells (40) connected to the corresponding transmission components (31) on a one-to-one basis, the plurality of suction shells (40) being combined to form a cylindrical structure, and the transmission components (31) driving the suction shells (40) to move in the direction perpendicular to the axis of the assembly housing (20), thus expanding or reducing the outer diameter of the cylindrical structure. The application of the present technical solution aims to solve the problem of the difficulty in unloading a bare battery cell from a battery cell winding mandrel device.
Resumen de: WO2024141042A1
A negative electrode material, a secondary battery and an electronic device. The secondary battery comprises a negative electrode sheet, the negative electrode sheet comprising the negative electrode material; the negative electrode material comprises a composite material; and the composite material comprises elemental silicon and a carbon material, the ratio of the dQ/dV main peak intensity and secondary peak intensity of a first cycle delithiation curve of the composite material being 1.15-1.65. The composite material in the secondary battery satisfies the above characteristics, so that the secondary battery has relatively high specific capacity and also has excellent cycle performance and expansion performance.
Resumen de: CN120092341A
The purpose of the present invention is to provide a binder composition for an all-solid-state secondary battery, which is capable of imparting excellent dispersibility and storage stability to a slurry composition for an all-solid-state secondary battery using a sulfide-based inorganic solid electrolyte as a solid electrolyte. And a solid electrolyte-containing layer formed using the slurry composition for all-solid secondary batteries can exhibit excellent ion conductivity. The present invention is a binder composition for an all-solid-state secondary battery using a sulfide-based inorganic solid electrolyte, the binder composition for an all-solid-state secondary battery comprising a polymer containing an alkyl (meth) acrylate monomer unit and an acetate solvent in which a hydrocarbon group having 6-9 carbon atoms is bonded to a non-carbonyl oxygen atom, the alkyl (meth) acrylate monomer units include a first alkyl (meth) acrylate monomer unit in which an alkyl group having 3-8 carbon atoms is bonded to a non-carbonyl oxygen atom, and a second alkyl (meth) acrylate monomer unit in which an alkyl group having 1-2 carbon atoms is bonded to a non-carbonyl oxygen atom. The mass ratio of the first alkyl (meth) acrylate monomer unit to the second alkyl (meth) acrylate monomer unit is from 2.1 to 2.5 (inclusive).
Resumen de: KR20250122887A
전이금속 전구체와 리튬 전구체를 혼합한 혼합물을 준비하고, 상기 혼합물을 압축하여 펠렛을 제조하고, 상기 펠렛을 1차 소성하고, 1차 소성된 펠렛을 분쇄하여 양극 활물질 전구체를 수득하고, 용매에 상기 양극 활물질 전구체, 전이금속을 포함하는 금속염 및 염기성 화합물을 혼합하여 혼합 용액을 수득하고, 상기 혼합 용액에서 용매를 제거하고 2차 소성하여 양극 활물질을 수득하는 것을 포함하고, 공극률 P의 값을 40 부피% 내지 45 부피%로 제어하는 양극 활물질의 제조 방법을 제공한다.
Resumen de: KR20250122961A
개시된 리튬-황 전지는, 양극, 음극 및 전해질을 포함한다. 상기 양극은, 호스트 복합체 및 황을 포함하는 활물질층을 포함한다. 상기 호스트 복합체는, 이황화 티타늄 및 이산화 티타늄 나노 입자를 포함한다. 상기 호스트 복합체는 고밀도 전극을 형성하여 전지 제조시 사용되는 전해질의 양을 감소시킬 수 있으며, 리튬 폴리황화물의 셔틀 현상을 억제할 수 있고, 전지에 추가적인 용량을 제공할 수 있다.
Resumen de: WO2025170394A1
A battery diagnostic method according to an embodiment of the present invention is to diagnose a battery assembly including a battery bank provided by connecting a plurality of battery cells in parallel to each other, the battery diagnostic method comprising: a secondary differential profile generation step for generating a secondary differential profile indicating the relationship between a secondary differential capacity and the voltage of the battery bank, the secondary differential capacity being obtained by secondarily differentiating the capacity of the battery bank with respect to the voltage of the battery bank; and a diagnosis step for detecting a target peak located in a predetermined voltage section from among a plurality of peaks of the secondary differential profile so as to diagnose the state of the battery bank on the basis of a secondary differential capacity value of the target peak.
Resumen de: WO2025170300A1
The present invention relates to an electrode trimming device. The electrode trimming device according to the present invention comprises: a trimming knife that is positioned on the opposite side of an electrode sheet from a conveying roller conveying the electrode sheet, and performs a trimming process for removing unnecessary portions of the edges of the electrode sheet; a support unit supporting the trimming knife; and a stopper unit that is supported by the support unit and spaces the trimming knife a predetermined distance apart from the conveying roller, thereby preventing the trimming knife from coming into direct contact with the conveying roller.
Resumen de: WO2025170209A1
A battery cell assembly of the present invention comprises: a plurality of battery cells each having a positive electrode terminal and a negative electrode terminal; a housing provided to accommodate the plurality of battery cells; and a plurality of holder assemblies including a positive electrode bus bar detachably provided in each of the plurality of battery cells and provided to be in contact with and electrically connected to the positive electrode terminal, and a negative electrode bus bar provided to be connected to the negative electrode terminal.
Resumen de: WO2025170310A1
An in-line manufacturing facility for a secondary battery, according to one embodiment of the present invention, comprises: a plurality of facilities provided for manufacturing a secondary battery; and a docking unit including a pair of docking members respectively mounted on two facilities adjacent to each other, each having at least one mark formed at a contact portion, wherein the pair of docking members are arranged such that the mark forms a predetermined shape when the two adjacent facilities are assembled in a predetermined position, with a predetermined flatness and parallelism.
Resumen de: WO2025170332A1
The present invention relates to a composition for recovering battery materials or disabling a battery and, more specifically, to a composition for recovering battery materials or disabling a battery, the composition being used when recovering, through chemical discharge, main materials in a used battery. The composition for extracting lithium in an anode of a battery contains a lithium-extraction solution (LeS), and the LeS contains an antisolvent that has a low solubility for a lithium compound so as to crystallize a lithium ion in a solution into a lithium compound.
Resumen de: WO2025167278A1
A negative electrode sheet. The negative electrode sheet comprises a current collector and a negative electrode active material layer, which is arranged on the surface of the current collector, wherein the negative electrode active material layer comprises artificial graphite. The negative electrode sheet satisfies: 0.2≤S×E/(D×P)≤1.2, wherein S is the structural strength of the artificial graphite, and the structural strength refers to the ratio of the volume-average particle size Dv50 of the artificial graphite after powder pressing under a pressure of 20 KN to the volume-average particle size Dv50 thereof before powder pressing; E is the resistivity of the negative electrode sheet; D is the surface defect degree of the negative electrode sheet, and the surface defect degree refers to the peak area ratio of the D peak to the G peak of the artificial graphite; and P is the porosity of the negative electrode sheet.
Resumen de: WO2025167263A1
A negative electrode current collector and a preparation method therefor, a sodium secondary battery, and an electrical device. The negative electrode current collector comprises: a substrate; and a functional layer, arranged on at least one side of the substrate. The functional layer comprises a multifunctional additive. The multifunctional additive comprises NaxMNy•zH2O, where M comprises an atom capable of forming an alloy with Na, N comprises at least one of an O atom, an S atom, and/or an Se atom, and 0
Resumen de: WO2025167257A1
The present application discloses a thermal management system, a battery pack, and a thermal management method. The thermal management system comprises: a first circuit in communication with a second circuit, wherein the first circuit is a cooling-medium circulation circuit inside a battery pack, the second circuit is a cooling-medium circulation circuit outside the battery pack, and the first circuit and the second circuit form a total circuit; and a switching device, arranged in the total circuit, and used to block the second circuit and connect the first circuit when the battery pack is abnormal. In this way, when the battery pack has thermal runaway, the temperature inside the battery pack can be reduced to avoid thermal propagation, thereby improving the safety of the battery pack.
Resumen de: WO2025167243A1
The present application discloses a top cover support frame, a top cover assembly, and a battery. The top cover support frame is applied to a battery provided with a liquid injection hole. The top cover support frame comprises a support plate and a first protrusion. The support plate has a first surface and a second surface opposite to each other, and the first protrusion projects from the first surface. The top cover support frame is provided with a buffer recess and a liquid passage hole at least penetrating a side wall of the buffer recess. The buffer recess is partially arranged on the first protrusion and an opening thereof passes through the second surface. A bottom wall of the buffer recess is disposed opposite to the liquid injection hole.
Resumen de: WO2025167013A1
A battery pack, an energy storage system and an electric device. In the battery pack, a heating assembly (20) is provided between two adjacent columns of battery cells (10), a heating portion (202) and a buffer portion (201) are stacked in a first direction, the heating portion (202) is adapted to heat the battery cells (10) and the buffer portion (201), and the buffer portion (201) is adapted to shrink under pressure and expand under heat so as to flexibly deform, and the heating assembly (20) fits with the battery cells (10).
Resumen de: WO2025167012A1
A battery (100) and an electrical device (1000). The battery (100) comprises a case assembly (20), a first heat exchange assembly (30), a battery cell assembly (101), and a first insulating member (71), wherein the case assembly (20) comprises a case (21); the first heat exchange assembly (30) comprises a first heat exchange member (31), the first heat exchange member (31) being fixed to a bottom wall (211) of the case (21); the battery cell assembly (101) is arranged in the case assembly (20), and the side of the battery cell assembly (101) that faces the bottom wall (211) of the case (21) is bonded to the bottom wall (211) of the case (21) and the first heat exchange member (31) by means of a first bonding layer (34); and the first insulating member (71) is at least partially arranged between the battery cell assembly (101) and the side of the first heat exchange member (31) that faces away from the bottom wall (211) of the case (21), the first bonding layer (34) covering the first insulating member (71). While achieving insulation between the battery cell assembly (101) and the first heat exchange member (31), the technical solution does not affect the continuous fitting arrangement between the first bonding layer (34) and the battery cell assembly (101), such that the reliability of the connection fit can be improved, enhancing the overall structural strength of the battery (100), and thus improving the reliability of the battery (100).
Resumen de: WO2025167004A1
The present application relates to a composite thermal insulation pad, a battery, and an electric device. The composite thermal insulation pad comprises: a composite phase-change layer, comprising a phase-change material layer and an encapsulation layer, the encapsulation layer being arranged on the outer peripheral side of the phase-change material layer; and an outer thermal insulation layer, arranged on at least one side of the outer peripheral side of the encapsulation layer. The composite thermal insulation pad exhibits good thermal insulation performance; and when applied in batteries, the composite thermal insulation pad has a good effect in retarding thermal runaway of the batteries.
Resumen de: WO2025167003A1
The present application relates to a thermal insulation pad, a battery and an electric device. The thermal insulation pad comprises a thermal insulation pad body and a strain detection member, wherein the strain detection member is arranged in the thermal insulation pad body. The thermal insulation pad is applied to a battery, and has the effect of slowing down thermal runaway of the battery, and by means of the strain detection member arranged in the thermal insulation pad, the state of the battery during use can be accurately obtained.
Resumen de: WO2024140498A1
The present application discloses an electrochemical apparatus and an electrical device. The electrochemical apparatus comprises an electrode assembly, a battery cell casing, and electrode terminals. The battery cell casing comprises a casing body used for containing the electrode assembly and a packaging part extending outwards from the casing body in a first direction; the packaging part comprises a first packaging area and a second packaging area; in the first direction, a first distance is reserved between the end of the first packaging area away from the casing body and the electrode assembly, a second distance is reserved between the end of the second packaging area away from the casing body and the electrode assembly, and the first distance is greater than the second distance. The electrode terminals each comprise a first portion, a second portion, and a third portion which are connected in sequence, the first portion is electrically connected to the electrode assembly, the second portion is clamped in the first packaging area, and the third portion is exposed out of the battery cell casing. The first distance is greater than the second distance, so that the size of the battery cell head is reduced, and the side of the second packaging area away from the casing body can be used to avoid other components, thereby increasing the energy density of the electrochemical apparatus.
Nº publicación: KR20250123184A 14/08/2025
Solicitante:
컨템포러리엠퍼렉스테크놀로지씨오리미티드
Resumen de: WO2024159398A1
Disclosed in the present application are a battery cell (20), a battery (1100) and an electric device. The battery cell (20) comprises a case (100) and an end cap (200), wherein the case (100) is provided with an opening; and the end cap (200) is welded at the opening and is provided with a welded structure (300). The welded structure (300) comprises a plurality of first welds (310), wherein the first welds (310) are arranged corresponding to edge portions (210) of the end cap (200); and the plurality of first welds (310) are connected and form a closed annular structure to surround outside of the end cap (200). Two adjacent first welds (310) are overlapped at a corresponding corner (220) of the end cap (200). In the battery cell (20), the strength of the welded structure (300) at the corners (220) of the end cap (200) is good, such that the welded structure (300) between the case (100) and the end cap (200) has good strength; thus, the welding quality is high, and the structural reliability of the battery cell (20) is good.
BOPI
Sede Electrónica
