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1525
resultados
Última actualización
12/09/2025 [07:43:00]
Resultados 1475 a 1500 de 1525
Resumen de: WO2025178015A1
This power storage device comprises a power storage element and a spacer. The power storage element comprises a terminal, an electrode body, a current collector connected to the terminal and the electrode body, and a container in which the electrode body and the current collector are housed. Compared to the electrode body, the terminal is disposed in a second direction intersecting a first direction, which is the arrangement direction of the power storage element and the spacer. The current collector comprises a plate-like part facing in a third direction intersecting the first direction and the second direction. The spacer is disposed at a position not overlapping with the plate-like part as viewed in the first direction.
Resumen de: WO2025177906A1
Provided are a solid electrolyte having excellent lithium ion conductivity and a method for producing the same. Specifically provided is a solid electrolyte which includes a rhombohedral NASICON-type structure represented by the general formula XAZrBYCPDO12±σ, where A to D, which indicate molar ratios, satisfy a prescribed relationship, the lattice constant ratio c/a is no more than 2.52, and the lattice volume is 1,505-1,522 Å3, and in which a substance having a triclinic crystal structure is included in a prescribed proportion relative to the rhombohedral NASICON-type structure. When obtaining the solid electrolyte, a mixed solution containing a Zr raw material, a Y raw material, a P raw material, and a chelating agent and prepared at a pH of no more than 7.0 is heated to remove moisture, the mixed solution is fired in an air atmosphere to obtain an oxide precursor, and a Li raw material is added thereto and further fired in an air atmosphere to produce the solid electrolyte.
Resumen de: WO2025177741A1
A power storage element according to the present invention comprises a terminal, an electrode body, and a current collector that is connected to the terminal and the electrode body. The electrode body comprises a body part and a first tab part and a second tab part that protrude from the body part in a second direction that intersects a first direction that is the direction in which the terminal and the electrode body are aligned. The current collector comprises a connection part that is provided in the second direction of the body part and is connected to the first tab part and the second tab part. The first tab part and the second tab part are provided at different positions in the first direction and are joined to a first surface of the connection part.
Resumen de: WO2025177711A1
A power storage device (10) comprises: a first power storage cell (211) and a second power storage cell (221) that are arranged along a first direction without touching each other; and a cross member (40) that extends along a second direction orthogonal to the first direction and is disposed in the gap between the first power storage cell (211) and the second power storage cell (221). The cross member (40) is provided with a hollow part (H) in a cross section perpendicular to the second direction. The cross member (40) has: a first wall part (41) that faces the first power storage cell (211) in the first direction; and a partition wall (45) that intersects the first direction in a cross section and partitions the hollow part (H). The thickness of the partition wall (45) is smaller than or equal to the thickness of the first wall part (41).
Resumen de: WO2025177693A1
According to the present invention, an electrode composition for a secondary battery electrode layer contains an electrolyte solution and satisfies all of (1)-(7). (1) The electrode composition contains an active material and an additive but does not include a binder resin. (2) The additive contains a compound (A), and the compound (A) content is 0.01-2.0 wt% relative to the solid weight of the electrode composition. (3) The HSP distance (Ra_Act) between the compound (A) and the active material is no more than 12.0 MPa0.5. (4) The HSP distance (Ra_Elec) between the compound (A) and the electrolyte solution is no more than 14.0 MPa0.5. (5) The compound (A) has a polyoxyethylene group that has at least 3 repeats. (6) The additive contains a compound (B) that has one diethylene glycol group and/or a compound (C) that has one ethylene glycol group. (7) The compound (B) content (B_cont) (ppm) and the compound (C) content (C_cont) (ppm) relative to the solid weight of the electrode composition satisfy all of expressions (i)-(iv). (i) 0≤B_cont≤50. (ii) 0≤C_cont≤10. (iii) 0
Resumen de: US2025273745A1
Provided are an all-solid secondary battery, an all-solid secondary battery structure, and a method for manufacturing an all-solid secondary battery, the battery comprising a positive electrode layer, a negative electrode layer, and a solid electrolyte layer interposed between the positive electrode layer and the negative electrode layer, wherein the positive electrode layer includes a positive electrode current collector and a positive electrode active material layer disposed on one or both surfaces of the positive electrode current collector, and the negative electrode layer includes a negative electrode current collector and a first negative electrode active material layer disposed on the negative electrode current collector, the battery including an inactive member disposed to surround a side of the positive electrode layer, wherein the inactive member includes a position determination part configured to determine a position of the inactive member on the solid electrolyte layer.
Resumen de: US2025273829A1
The present disclosure provides a battery cell including: a cell case including a side wall having an accommodation space and an upper plate having a through-hole; an electrode terminal coupled to the through-hole and having a coupling hole; an electrode assembly disposed in the accommodation space; and a first current collector electrically connecting the electrode terminal and the electrode assembly, where the first current collector includes a connection terminal having a protrusion inserted into the coupling hole, a welding space is formed between an upper end of a side surface of the protrusion and an inner surface of the coupling hole, and a welding area is formed in the welding space by welding performed on an outer side of the cell case in a state in which the protrusion is inserted into the coupling hole.
Resumen de: WO2025178162A1
The present invention relates to a secondary battery having a structure in which a plurality of electrode assemblies is stacked and a manufacturing method thereof. The technical problem to be solved is to propose a secondary battery having a structure in which a plurality of electrode assemblies is stacked within one battery case, so as to be alternatively utilized in an application of configuring and using a battery module/pack by stacking secondary batteries. To this end, the present invention provides a secondary battery comprising: a secondary battery case; a plurality of electrode assemblies which are vertically stacked and embedded in the case and each of which has an electrode tab; a current collecting part connected to each electrode tab of the plurality of stacked electrode assemblies; and a cap plate which is bonded to the case and with which a terminal connected to the current collecting part is assembled.
Resumen de: US2024291012A1
A secondary battery is provided for cycling between a charged and a discharged state, the secondary battery including a battery enclosure, an electrode assembly, carrier ions, a non-aqueous liquid electrolyte within the battery enclosure, and a set of electrode constraints. The set of electrode constraints includes a primary constraint system having first and second primary growth constraints and at least one primary connecting member, the first and second primary growth constraints separated from each other in the longitudinal direction, wherein the primary constraint array restrains growth of the electrode assembly in the longitudinal direction such that any increase in the Feret diameter of the electrode assembly in the longitudinal direction over 20 consecutive cycles of the secondary battery is less than 20%. The set of electrode constraints further includes a secondary constraint system having first and second secondary growth constraints connected by at least one secondary connecting member, wherein the secondary constraint system at least partially restrains growth of the electrode assembly in a second direction upon cycling of the secondary battery.
Resumen de: WO2025161158A1
A battery appearance inspection device (100), comprising: a rack (10); an illumination mechanism (20), the illumination mechanism (20) comprising a first adjustment structure (21) and a light source (22), wherein the first adjustment structure (21) is mounted on the rack (10) and connected to the light source (22) and is used to adjust the orientation and/or height of the light source (22); an imaging mechanism (30), the imaging mechanism (30) comprising a second adjustment structure (31) and a camera (32), wherein the second adjustment structure (31) is mounted on the rack (10) and connected to the camera (32) and is used to adjust the orientation and/or height of the camera (32); and a rotation driving mechanism (40) configured to hold a battery (200) and drive the battery (200) to rotate.
Resumen de: US2025125646A1
The present disclosure provides a discharge device and a method for controlling discharge of the discharge device. The discharge device according to an embodiment of the present disclosure includes: a connection member configured to connect the discharge device and a secondary battery; a discharge module configured to discharge the secondary battery connected thereto through the connection member; and a control module configured to control the discharge module so as to primary discharge the secondary battery to a designated reference state of charge (SoC) at a designated first current rate (C-rate), and when the secondary battery reaches the reference state of charge, secondary discharge the secondary battery to a designated peak negative voltage at a second current rate which is smaller than the first current rate. Accordingly, the present disclosure may improve the discharge efficiency of secondary batteries.
Resumen de: WO2023216530A1
The present application relates to the technical field of power batteries. Disclosed are a connector and a battery. The connector comprises a body part and connecting parts. The connecting parts are connected to the circumferential edge of the body part, and the connecting parts can be bent relative to the body part, so that the connecting parts and the body part are arranged at an included angle, and through holes are provided in the junction lines of the connecting parts and the body part. The connector can be prevented from being inserted into a jelly roll due to edge sinking of the connector during slot rolling and sealing, so that the potential safety hazards are reduced, and the safety is improved.
Resumen de: WO2025138199A1
The present application discloses an explosion-proof structure, and a battery. The explosion-proof structure comprises a cover plate. An explosion-proof groove is formed on the cover plate. The explosion-proof groove comprises a first sub-groove and a second sub-groove. The projections of the first sub-groove and the second sub-groove on one side face of the cover plate define a closed circular ring. The thickness of the cover plate at the position of the first sub-groove is smaller than the thickness of the cover plate at the position of the second sub-groove. The present application improves the reliability of the cover plate, and ensures the explosion-proof effect.
Resumen de: US2024063514A1
The present application provides an electrode assembly and an energy storage device. The electrode assembly includes an electrode assembly body and a current collector. The electrode assembly body is wound in shape; the current collector is arranged at an end of the electrode assembly body and includes multiple current collector units each bent towards an axis of the electrode assembly body, and an angle between each current collector unit and the axis of the electrode assembly body is in a range from approximately 0° to approximately 90°.
Resumen de: US2025266568A1
A power storage device includes: a first power storage cell and a second power storage cell disposed side by side in a first direction; and a cross member extending along a second direction perpendicular to the first direction and disposed in a gap between the first power storage cell and the second power storage cell. The first power storage cell includes a first side wall portion facing the cross member. The first side wall portion is provided with a first exhaust valve. The cross member is provided with a hollow portion, and is provided with a first opening such that the first opening faces the first side wall portion. The cross member is provided with a communicating portion that allows the hollow portion and a space around the cross member to communicate with each other. The communicating portion is provided at a position not facing the first exhaust valve.
Resumen de: US2025266576A1
A rechargeable battery according to some embodiments includes a first electrode assembly including a first positive electrode and a first negative electrode disposed with a separator therebetween; and a second electrode assembly including a second positive electrode and a second negative electrode disposed with the separator therebetween. The first positive electrode and the second negative electrode may be alternately arranged in a matrix structure on one surface of the separator, the first negative electrode and the second positive electrode may be alternately arranged in a matrix structure on the other surface of the separator, and the separator may include a bendable bent portion disposed between rows or columns of the matrix structure.
Resumen de: WO2025178306A1
One aspect of the present invention provides a solvent composition and a method for manufacturing a porous film using the solvent composition, in which the solvent composition is used for manufacturing a porous film including a plurality of pores by selectively extracting and removing a pore-forming agent from a base film comprising polyolefin and the pore-forming agent, and comprises at least one of alkyl carbonate and alkyl acetate and a non-chlorine-based halogen compound.
Resumen de: JP2024102032A
To provide a TFE polymer composition, and the like for use in a binder for a solid-state secondary battery, the TFE polymer composition being capable of improving the strength of a mixture sheet.SOLUTION: There is provided a TFE polymer composition for use in a binder for a solid-state secondary battery, the TFE polymer composition containing a TFE polymer and at least one compound selected from the group consisting of compounds represented by general formulae (1) and (2). General formula (1): (H-(CF2)m-1-COO)pM1 (In the formula, m is 4-20, M1 is H, a metal atom, NR54 (the R5 moieties may be the same or different, and each represent H or an organic group having 1-10 carbon atoms), or the like, and p is 1 or 2.) General formula (2): (H-(CF2)n-SO3)qM2 (In the formula, n is 4-20, M2 is H, a metal atom, NR54 (the R5 moieties are as defined above), or the like, and q is 1 or 2).SELECTED DRAWING: Figure 1
Resumen de: US2025266579A1
A power storage module includes a plurality of single cells. The plurality of the single cells are stacked in a stacking direction. Each of the plurality of the single cells includes a case. The case has a rectangular-parallelepiped-like shape with six outer surfaces. The six outer surfaces include a terminal surface and an opposite surface. The terminal surface is an outer surface, among the six outer surfaces, to which a positive electrode terminal and a negative electrode terminal are provided. The opposite surface is an outer surface, among the six outer surfaces, that is located opposite to the terminal surface. Each of the terminal surface and the opposite surface is parallel to the stacking direction. The plurality of the single cells are aligned in the stacking direction in such a manner that the terminal surface alternates with the opposite surface.
Resumen de: US2025266431A1
Disclosed is a cathode active material for a lithium secondary battery, including a first carbon coating layer formed on the surface of a core component containing lithium and configured to cover the core component and prevent dissolution of metal elements contained in the core component, and a second carbon coating layer formed on the surface of the first carbon coating layer and configured to have a lower carbon density and higher ionic conductivity than the first carbon coating layer.
Resumen de: WO2024141379A1
The present invention relates to a powderous material comprising a hydroxide or oxyhydroxide of one or more metal elements for preparing a positive electrode active material for secondary batteries, wherein the one or more metal elements include at least one of Ni, Co and Mn, wherein the material comprises secondary particles comprising a plurality of primary particles, wherein the material has a median particle size D50 between 3.0 μm and 20.0 μm as determined by laser diffraction, wherein said primary particles have a particle- based thickness distribution as determined by measuring primary particle thickness in an image taken by SEM, wherein said thickness distribution has a median thickness between 180 nm and 600 nm, andwherein the material has a span value (D90-D10)/D50 being at most 0.6, preferably at most 0.4, more preferably at most 0.2.
Resumen de: KR20250128597A
본 개시는 NbSe2 및 폴리피롤층을 포함하는 나노복합체의 제조방법으로, 복수 개의 NbSe2 층들을 포함하는 벌크(bulk) NbSe2를 박리하여 (exfoliate), NbSe2의 단층 시트를 수득하는 단계; 및 상기 NbSe2의 단층 시트의 표면을 폴리피롤로 코팅하는 단계를 포함하는, 나노복합체의 제조방법을 제공한다.
Resumen de: KR20250128511A
배터리의 극판 테스트 방법이 개시된다. 본 발명의 일 측면에 따른 배터리의 극판 테스트 방법은, 원통형 배터리에 포함되는 극판을 테스트하는 배터리의 극판 테스트 방법에 있어서, 상기 극판을 일정 크기로 절단하는 절단 단계; 상기 극판을 검사 핀에 걸치는 안착 단계; 상기 극판의 양쪽 끝단을 당기는 인장 단계; 및 상기 극판의 크랙 유무를 측정하는 측정 단계; 를 포함할 수 있다.
Resumen de: KR20250128869A
배터리 진단 장치는 적어도 하나의 인스트럭션을 저장하는 메모리, 및 상기 적어도 하나의 인스트럭션을 실행하는 적어도 하나의 프로세서를 포함하고, 상기 적어도 하나의 프로세서는, 배터리 셀에 대한 특정한 충전 속도의 충전 구간 및 제1 휴지 구간이 교대로 반복되는 충전 프로세스를 실행하거나, 또는 상기 배터리 셀에 대한 특정한 방전 속도의 방전 구간 및 제2 휴지 구간이 교대로 반복되는 방전 프로세스를 실행하고, 상기 충전 프로세스, 또는 상기 방전 프로세스를 실행하는 과정에서, 상기 배터리 셀의 저항을 획득하고, 상기 배터리 셀의 저항에 기반하여, 상기 배터리 셀의 충전 용량을 진단할 수 있다.
Nº publicación: KR20250128704A 28/08/2025
Solicitante:
삼성에스디아이주식회사
Resumen de: WO2025178163A1
The present invention relates to an external insulating tape attached to the outside of a case, a secondary battery to which the insulating tape is applied, and a manufacturing method thereof. The technical problem to be solved is to provide an insulating tape capable of being attached to the entire outer surface of a case including a surface on which an external terminal of a secondary battery is installed, a secondary battery to which the insulating tape is applied, and a manufacturing method thereof. To this end, the present invention provides a secondary battery comprising: an electrode assembly; a case in which the electrode assembly is embedded; a cap plate bonded to the case and including a terminal connected to the electrode assembly; and an insulating tape attached to an outer surface of the case, wherein the outer surface of the case comprises a surface of the cap plate, and the insulating tape comprises an upper surface attachment part attached to the surface of the cap plate.
BOPI
Sede Electrónica
