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1900
resultados
Última actualización
05/10/2025 [07:18:00]
Resultados 425 a 450 de 1900
Resumen de: WO2025200239A1
Disclosed in an embodiment of the present application are a battery cell, a battery, and an electrical device. The battery cell comprises an electrode assembly and an insulating part for wrapping at least part of the electrode assembly, wherein the insulating part comprises a first insulating structure and a second insulating structure, the first insulating structure being of a hollow structure with an opening at an end, the hollow structure being used for accommodating the electrode assembly, and the second insulating structure being configured to cover the opening of the first insulating structure. By means of the battery cell, the battery and the electrical device of the embodiment of the present application, the reliability of the battery cell can be improved.
Resumen de: WO2025200815A1
An electrochemical device and an electronic device. The electrochemical device comprises an electrolyte, a positive electrode, a negative electrode and a separator, wherein the electrolyte comprises a first additive; the first additive is a mixed additive; and the mixed additive comprises the following additives at the following mass ratios: (1) a cyclic compound containing a carbonate group, LiBF4 and LiPO2F2 at a ratio of 1:0.01:0.01 to 1:20:30; and/or (2) a cyclic compound containing a sulfonic acid group, LiBF4 and LiPO2F2 at a ratio of 1:0.05:0.01 to 1:5:20. Based on the mass of the electrolyte, the mass percentage content of the mixed additive is x%, wherein 0.04≤x≤10.5. The positive electrode comprises a positive electrode current collector. The elongation at break of the positive electrode current collector is A%, the elongation at break of the separator is B%, and 5≤B/A≤150. The above configuration enables the electrochemical device to have an increased pass rate in nail penetration tests, and therefore the safety performance of the electrochemical device is improved.
Resumen de: WO2025201149A1
A discharging control method for a vehicle charging system. The vehicle charging system can be used for discharging, so as to provide power replenishment for a vehicle being charged. When the vehicle charging system acquires a discharging signal, a communication converter switches to a power supply device communication controller mode to acquire charging information of the vehicle being charged, and the vehicle being charged is charged on the basis of the charging information. Further provided are a discharging control device and a vehicle. By means of the discharging control method for a vehicle charging system, electric vehicles that have broken down halfway or are in extreme environments can be rescued.
Resumen de: WO2025200238A1
A CTP battery case and a CTP battery system. The CTP battery case comprises a bottom plate (1) and a plurality of side plates (2), wherein the side plates (2) are connected to the bottom plate (1), and adjacent side plates (2) are connected to each other to form a mounting space (3); an adhesive bonding groove (4) is formed in the side of the bottom plate (1) close to the mounting space (3); an insulating layer (5) covers the adhesive bonding groove (4), and the insulating layer (5) is provided with a through hole (6) adapted to an opening of the adhesive bonding groove (4); an adhesive bonding member (7) is provided in the adhesive bonding groove (4), and the adhesive bonding member (7) passes through the through hole (6); the insulating layer (5) isolates the bottom plate (1) from a battery cell (10); the adhesive bonding member (7) is bonded to the battery cell (10); and the adhesive bonding member (7) is a structural member made of an insulating material.
Resumen de: WO2025204963A1
The present invention is characterized by being provided with: an electrode body (14) in which a first electrode and a second electrode are wound via a separator (13); a cylindrical outer casing (16) that accommodates the electrode body (14); a sealing body 17 that closes an opening of the outer casing (16); and a cylindrical member (40) that is disposed on the winding core of the central part in the radial direction of the electrode body (14) and extends along the axial direction of the electrode body (14), wherein the cylindrical member (40) is configured from an insulating material, and a hollow part (43) is formed therein in the central part in the radial direction.
Resumen de: WO2025200644A1
The present application provides a battery case, an energy storage apparatus, and an electric device. The battery case comprises a bottom case and a top cover. The bottom case comprises a main case and a reinforcing rib. The main case is provided with an accommodating cavity and an opening, wherein the accommodating cavity is formed inside the main case, and the opening is located on the outer surface of the main case and is communicated with the accommodating cavity. The reinforcing rib is fixedly connected to cavity side wall surfaces of the accommodating cavity, is spaced apart from the opening and a cavity bottom wall surface of the accommodating cavity, and extends in the circumferential direction of the main case; first sub-reinforcing portions of the reinforcing rib each comprise a step surface facing the opening; second sub-reinforcing portions of the reinforcing rib are located on the sides of the first sub-reinforcing portions facing away from the step surfaces, and are fixedly connected to the first sub-reinforcing portions; and in the direction from the opening to the cavity bottom wall surface, the thickness of the second sub-reinforcing portions gradually decreases. The top cover is located on the accommodating cavity, is welded to the cavity side wall surfaces, abuts against the step surfaces, and also closes the opening.
Resumen de: WO2025204758A1
The battery disclosed herein comprises: wound electrode groups each having a belt-like first electrode (21), a second electrode, and a separator; and a first current collector plate (60) electrically connected to the first electrode (21). The first electrode (21) has at least one first portion (24) welded to the first current collector plate (60), and at least one second portion (25) positioned next to the at least one first portion (24) in the radial direction of the electrode group and separated from the first current collector plate (60).
Resumen de: WO2025204268A1
The present disclosure relates to an additive for an electrolytic solution, the additive containing a compound that is expressed by formula (1). In formula (1), M indicates a group 13 element of the periodic table, and each of R1 to R3 independently indicates a C1-6 alkyl group that may be substituted, a C2-6 alkenyl group that may be substituted, a C2-6 alkynyl group that may be substituted, an aryl group that may be substituted, or a C1-6 alkoxy group that may be substituted.
Resumen de: WO2025204269A1
The present disclosure relates to an electrolytic solution for a secondary battery, the electrolytic solution containing: a first compound represented by formula (1); and at least one second compound selected from the group consisting of compounds represented by formula (2-1), compounds represented by formula (2-2), and compounds represented by formula (2-3).
Resumen de: WO2025204764A1
The present invention improves ion conductivity while improving water resistance. Provided is a solid electrolyte having a composition formula represented by LixMXy, wherein M is one or more elements selected from group 14 elements, X includes S, and the compositional ratio of Li, M, and X is x:1:y. The crystal structure of the solid electrolyte is hexagonal, and the volume of a hexagonal unit cell is greater than 0.0870 nm3 but less than 0.0880 nm3.
Resumen de: WO2025200528A1
Disclosed in the present application are a terminal post assembly, an energy storage device and an electric device. The terminal post assembly comprises a first terminal post and a first flange connected to one end of the first terminal post. The first terminal post comprises a first member and a second member, which are stacked and connected to each other, wherein the second member is connected to the first flange. The material of the first member is different from that of the second member, and a connection interface between the first member and the second member is a curved surface. The first terminal post is configured to be connected to an electrode assembly of an energy storage device, and the first flange is configured to be connected to a first busbar.
Resumen de: WO2025199693A1
The present application provides an electrolyte, a secondary battery containing the electrolyte, and an electronic device. The electrolyte comprises lithium difluorophosphate and a metal cation salt, wherein a metal cation of the metal cation salt has a valence of +2 or higher, and an acid radical ion of the metal cation salt comprises an anionic group represented by formula I-A or an anionic group represented by formula I-B; and on the basis of the mass of the electrolyte, the mass percentage content of the lithium difluorophosphate is A%, the mass percentage content of the metal cation salt is B%, 2≤A≤8.8, and 1≤A/B≤2.2. The electrolyte of the present application comprises lithium difluorophosphate and a metal cation salt, which is conducive to exhibiting the function of the lithium difluorophosphate and facilitating the formation of stable SEI and CEI films, thereby improving the cycle performance and high-temperature storage performance of the secondary battery.
Resumen de: WO2025205466A1
A lithium ion secondary battery positive electrode according to the present invention includes a positive electrode active material layer. A positive electrode active material included in the positive electrode active material layer includes single crystal particles (A) formed from a lithium composite oxide (X) that has a layered rock salt crystal structure and single crystal particles (B) formed from the lithium composite oxide (X) that has a layered rock salt crystal structure. The average particle size d50 of the single crystal particles (A) on a volume-based particle size distribution found by laser diffraction scattering particle size distribution measurement is smaller than the average particle size d50 of the single crystal particles (B) on a volume-based particle size distribution found by laser diffraction scattering particle size distribution measurement. When A50 and A90 are the average particle size d50 of the single crystal particles (A) and the particle size d90 at a cumulative value of 90% on a volume-based particle size distribution found by laser diffraction scattering particle size distribution measurement and B50 and B10 are the average particle size d50 of the single crystal particles (B) and the particle size d10 at a cumulative value of 10% on a volume-based particle size distribution found by laser diffraction scattering particle size distribution measurement, the lithium ion secondary battery satisfies at least one of (1)-(3). (1) The ratio (A90/B50) o
Resumen de: WO2025200216A1
A battery cell, a battery and an electrical apparatus. The battery cell comprises an electrode assembly, the electrode assembly comprising a negative electrode sheet; the negative electrode sheet comprises a negative electrode film layer, the negative electrode film layer having a first surface away from a negative electrode current collector and a second surface opposite to the first surface, and the thickness of the negative electrode film layer being H; a region within a thickness range from the second surface of the negative electrode film layer to 0.3H is a first region of the negative electrode film layer, and a region within a thickness range from the first surface of the negative electrode film layer to 0.3H is a second region of the negative electrode film layer; the first region comprises a first active material, the first active material comprising first graphite; the second region comprises a second active material, the second active material comprising second graphite; in a longitudinal section view of the negative electrode sheet, the amount of pores inside a single particle of the second graphite is greater than the amount of pores inside a single particle of the first graphite. The length of the battery cell is a, the width of the battery cell is b, and the thickness of the battery cell is c, wherein a:b:c=(2000-500):(200-80):(25-8).
Resumen de: WO2025206748A1
A positive electrode active material according to the present invention comprises: lithium-nickel-based oxide particles each in the form of a single particle, composed of one single nodule, or quasi-single particles, which are a composite of 30 or fewer nodules; and a cobalt-containing coating layer formed on the surface of the lithium-nickel-based oxide particles, wherein XPS (Co/Ni), which is the atomic ratio of Co to Ni when the positive electrode active material is analyzed by X-ray photoelectron spectroscopy (XPS), is 0.15 or more, the standard deviation of AES (Co/Ni), which is the atomic ratio of Co to Ni when the positive electrode active material is analyzed by Auger electron spectroscopy (AES), is 0.15 or more, and the content of residual Li2CO3 in the positive electrode active material is 0.50 wt% or less.
Resumen de: WO2025200353A1
A negative electrode material, and a preparation method therefor and the use thereof. The negative electrode material comprises graphite and a porous carbon coating layer that coats the surface of the graphite, wherein the porous carbon coating layer comprises non-metallic elements except carbon.
Resumen de: WO2025200352A1
A current collector system and a liquid cooling system, the current collector system comprising at least two current collectors; each current collector comprises: a current collector housing (1) which is internally provided with a liquid cavity (11) for liquid circulation, one side of the liquid cavity (11) being provided with an open current collector connection port (12); and a current collector main flow channel (2) which passes through the current collector housing (1), the current collector main flow channels (2) of the at least two current collectors being connected in series; a flow hole (3) is provided between the liquid cavity (11) and the current collector main flow channel (2), such that the current collector main flow channel (2) is in communication with the liquid cavity (11); the aperture sizes of the flow holes (3) of the at least two current collectors are different.
Resumen de: WO2025200527A1
An end cap assembly (100), an energy storage apparatus (1000) and an electrical device. The end cap assembly (100) comprises a top cap (10), lower plastic (20), a first post (30) and a first pressing ring (51); the top cap (10) comprises a first protrusion (123); the top cap (10) is provided with a first mounting groove (121); the lower plastic (20) is provided with a first accommodating groove (221); the lower plastic (20) and the top cap (10) are stacked and connected to each other; the first accommodating groove (221) is at least partially located within the first mounting groove (121); the first post (30) passes through the top cap (10) and the lower plastic (20); the first pressing ring (51) is sleeved on the first post (30) and is fixedly connected to the first post (30); the first pressing ring (51) is at least partially located within the first accommodating groove (221) and is fixedly connected to the wall of the first accommodating groove (221); in a direction perpendicular to the thickness direction of the end cap assembly (100), the projection of the first pressing ring (51) on the lower plastic (20) covers the projection of the first protrusion (123) on the lower plastic (20).
Resumen de: WO2025200106A1
The present application provides a battery and a manufacturing method therefor, and an electric device. The battery comprises a positive electrode sheet and a negative electrode sheet; at least one stack structure covers the surface of the side of the positive electrode sheet facing the negative electrode sheet or the surface of the side of the negative electrode sheet facing the positive electrode sheet, wherein the stack structure comprises an ion transport layer and an electron insulating layer which are stacked; and the battery does not comprise a separator.
Resumen de: WO2025200381A1
The present application discloses a current collector disc, a cover plate assembly, a battery cell, a battery module and an electric device. The current collector disc comprises a first connection portion, the first connection portion comprises a connection area adapted for electric connection with a cell, and the width of the connection area is increased from inside to outside in a direction moving away from the geometric center of the current collector disc. According to the current collector disc provided by embodiments of the present application, the connection area with the cell is larger near the edge of the current collector disc, thereby ensuring the connection strength of the current collector disc and the cell, while reducing the connection impedance, which is conducive to improving the working performance of the battery cell.
Resumen de: WO2025199688A1
Provided are an electrolyte, a secondary battery and an electronic device, belonging to the technical field of batteries. The electrolyte comprises lithium difluorophosphate and a first substance, the first substance comprising a first compound that has a structure represented by formula I and/or a second compound that has a structure represented by formula II. The coordination between an organic phosphine oxide compound and/or dicyandiamide salt compound and lithium difluorophosphate can promote formation of more stable CEI films and SEI films in secondary batteries, so as to have a relatively strong protection effect on positive electrodes and negative electrodes and to reduce side reactions in battery cycle processes, thus improving the cycle performance and high-temperature storage performance of the secondary batteries.
Resumen de: WO2025201328A1
A membrane, comprising a sulfide solid electrolyte, an active material and a binder, wherein the elastic modulus ESE of the sulfide solid electrolyte is less than 30 GPa; the shear modulus GSE of the sulfide solid electrolyte is less than 12 GPa; and the sulfide solid electrolyte comprises Li and S, and further comprises at least one element selected from Sb, Sn, Te, Se, I and Br.
Resumen de: WO2025204950A1
A transition metal composite oxide powder containing at least niobium and a trivalent element MIII selected from among aluminum, iron and chromium, said powder being characterized in that the molar ratio Nb/MIII of niobium relative to the trivalent element MIII is 8≤Nb/MIII≤45, and formula (I) is satisfied. (I) log10(D90)-log10(D50)<1.0 (D50 represents the particle size at the point at which the cumulative volume distribution of particle sizes of primary particles in a particle-size distribution reaches 50%. D90 represents the particle size at the point at which the cumulative volume distribution of particle sizes of the primary particles in the particle-size distribution reaches 90%.)
Resumen de: WO2025200076A1
A composite negative electrode material, and a preparation method therefor and the use thereof. The composite negative electrode material comprises elemental phosphorus, an electrically conductive carbon material, and a phosphate. The mass ratio of elemental phosphorus, the electrically conductive carbon material and the phosphate is 4:x:y, wherein x+y=6, and x and y are both greater than 0. By compounding elemental phosphorus, the electrically conductive carbon material and the phosphate at a specific ratio to prepare the composite negative electrode material, the combined effect of the three endows the composite negative electrode material with excellent reaction kinetics and structural stability characteristics, such that a prepared battery has a high capacity, good cycling stability and good rate capacity.
Nº publicación: WO2025203399A1 02/10/2025
Solicitante:
NGK INSULATORS LTD [JP]
\u65E5\u672C\u788D\u5B50\u682A\u5F0F\u4F1A\u793E
Resumen de: WO2025203399A1
Provided is a halide-based solid electrolyte which exhibits high lithium ion conductivity at room temperature. This solid electrolyte contains Li, Mα, Mβ, and Cl, wherein Mα is at least one element that is selected from the group consisting of Zn, Mg, Ca, Sr, and Ba, and Mβ is at least one element that is selected from the group consisting of Al, Ga, Bi, Er, Ge, and Zr. This solid electrolyte has a crystal structure that belongs to an orthorhombic crystal of the space group Pnma.
BOPI
Sede Electrónica
