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1450
results.
Updated on
18/07/2025 [07:37:00]
Results 600 to 625 of 1450
Absstract of: WO2025145722A1
A composite positive electrode material, a preparation method therefor, a positive electrode sheet, a secondary battery, and an electric device are provided. The preparation method comprises: according to a preset proportion, mixing a lithium source, a phosphorus source, an iron source, a carbon source and a carbon graphitization catalyst with a solvent to form a mixed slurry; grinding and drying the mixed slurry to obtain a mixed dry substance; and sintering the mixed dry substance to obtain a composite positive electrode material, wherein the sintering temperature is 750 ̊C-840 ̊C.
Absstract of: WO2025145801A1
An insulating film (100) for a battery, and the battery. The insulating film comprises a first sub-insulating film (10) and a second sub-insulating film (20) which are integrated and arranged in a first direction (X direction), wherein the first sub-insulating film (10) is provided with a first positioning hole (11), and the second sub-insulating film (20) is provided with a second positioning hole (21); and the first positioning hole (11) is a circular hole, the connecting line between the center point of the first positioning hole (11) and the center point of the second positioning hole (21) is a first extending straight line, and the extension direction of the second positioning hole (21) is the same as the extension direction of the first extending straight line.
Absstract of: WO2025145800A1
A battery cell assembly (100), a battery and a vehicle. The battery cell assembly (100) comprises: a battery cell body (10); and an insulating film (20), wherein the insulating film (20) comprises a substrate layer (21) and a bonding layer (22) which are stacked, the substrate layer (21) comprising a first sub-substrate layer (211) and second sub-substrate layers (212) which are integrated and arranged in a first direction (Y direction) of the battery cell assembly (100), the bonding layer (22) being arranged on the surface of the first sub-substrate layer (211), and the first sub-substrate layer (211) being adhered to the surface of the battery cell body (10) by means of the bonding layer (22).
Absstract of: WO2025145592A1
A bus-bar assembly (10) inside a battery (100), used for achieving electrical connection of a plurality of battery cells (20), wherein the plurality of battery cells (20) and the bus-bar assembly (10) are accommodated in a case (30). The bus-bar assembly further comprises a heat absorption component (2); heat generated by the plurality of battery cells (20) can be transferred by means of a bus-bar component (1); the heat absorption component (2) is connected to the bus-bar component (1) to absorb the heat on the bus-bar component (1), so as to reduce the heat transferred from one battery cell (20) to another battery cell (20), thereby improving the reliability of the battery (100).
Absstract of: WO2025145854A1
A battery cell cover plate assembly, a battery cell, a battery pack, and a vehicle. The battery cell cover plate assembly comprises a cover plate body (1), a fixing member (2), a first insulating member (3), and a first heat insulation member (4), wherein the first insulating member (3) is arranged between the cover plate body (1) and the fixing member (2), and the first heat insulation member (4) is arranged between the fixing member (2) and the first insulating member (3).
Absstract of: WO2025146566A1
There is provided a battery cell dismantling system comprising: a battery carrier, configured to house a battery; a transportation means configured to carry the battery carrier through the system in a first direction; a first cutting station comprising first and second cutting tools, the first cutting tool being located on a first side of the transportation means and the second cutting tool being located on a second side of the transportation means, each of the first and second cutting tools being configured to apply a cutting force in a second direction that opposes the first direction; and an extraction station comprising: a pressing means that is moveable in a third direction on the first side of the transportation means and configured to apply a pressing force to a first side of the battery cell, wherein the third direction is perpendicular to the first direction; and an extraction means located on a second side of the transportation means and being configured to extract material from a second side of the battery cell.
Absstract of: WO2025146095A1
The present application relates to the technical field of batteries, and discloses a battery cell, a battery and an electric device. The battery cell comprises an electrode assembly and a heat shrink film. The electrode assembly comprises a main body and tabs. The main body has two end surfaces arranged opposite to each other in a first direction and a circumferential surface connecting the two end surfaces, and the tabs are arranged on one of the end surfaces. The heat shrink film covers the circumferential surface in a circumferential direction of the main body, the heat shrink film has a head end and a tail end in the circumferential direction, and the head end and the tail end are connected. By providing the heat shrink film, the manufacturing efficiency of the battery cell can be improved to a certain extent, so that the manufacturing efficiency of the battery is improved.
Absstract of: WO2025146168A1
A negative electrode sheet (10) and a preparation method therefor, a battery, and an electric device. The negative electrode sheet (10) comprises a negative electrode current collector (100) and a negative electrode active material layer (200); the negative electrode active material layer (200) is provided on at least one side of the negative electrode current collector (100), the negative electrode active material layer (200) comprises a thinned region (21), and the thinned region (21) comprises first dielectric material particles; the average particle size by volume Dv50 of the first dielectric material particles is D1, D1 being 400 nm-2000 nm; and with respect to the total mass of the thinned region (21), the proportion of the first dielectric material particles is W1, W1 being 0.5%-10%.
Absstract of: WO2025145960A1
The present invention belongs to the technical field of batteries. Disclosed are a composite material and a preparation method therefor, a positive electrode sheet, a secondary battery and an electric device. The composite material comprises a lithium-containing compound, a catalyst and a conductive agent, wherein the lithium-containing compound comprises lithium, carbon and oxygen; and the catalyst comprises one or more of an oxide of a transition metal, a carbide of a transition metal, a nitride of a transition metal or a phosphide of a transition metal. The total pore volume V of the composite material satisfies: 0.02 cm3/g≤V≤1 cm3/g; and the average pore diameter D of the composite material satisfies: 2 nm≤D≤50 nm. The composite material can improve the capacity of a battery.
Absstract of: WO2025145714A1
Provided is a solid-state electrolyte particle, comprising a compound represented by the following general formula: Lia(Mb)XcX'd, wherein M is a metal element, X is selected as Cl, X' comprises one or more of F ion, I ion, Br ion, N ion, P ion, S ion, CN-, oxygen-containing anion, and pseudohalide anion, 0.5
Absstract of: WO2025145762A1
Disclosed in the present application are a battery cell and a battery pack. The battery cell comprises a jelly roll, wherein the jelly roll comprises a wound body and a tab bundle, the tab bundle comprising a converging portion and a dispersing portion arranged between the converging portion and the wound body; and the minimum distance between the end of the converging portion that is close to the dispersing portion and a side of the jelly roll in a first direction is d mm, and the average dimension of the wound body in the first direction is D, meeting 0
Absstract of: WO2025145712A1
Disclosed in the present application are a positive electrode active material and a preparation method therefor, and a positive electrode sheet, a battery cell, a battery and an electric device comprising same. The preparation method for the positive electrode active material comprises the following steps: providing a lithium-containing phosphate active material or a precursor of a lithium-containing phosphate active material; providing an oxygen-free organic carbon source, wherein the oxygen-free organic carbon source comprises one or more of an oxygen-free polymer and an oxygen-free organic small molecule compound; and uniformly mixing the lithium-containing phosphate active material or the precursor of a lithium-containing phosphate active material with the oxygen-free organic carbon source to obtain a mixture, and then performing a sintering treatment in a protective gas atmosphere, so as to obtain a positive electrode active material. The present application makes the battery have good cycling performance and storage performance.
Absstract of: WO2025145855A1
A battery module, a battery with same, and an electric device. The battery module (100) comprises: a plurality of battery cells (10), wherein the plurality of battery cells (10) are at least partially arranged in sequence in a first direction, in two adjacent battery cells (10) in the first direction, side walls of the two battery cells (10) that are arranged facing each other are both first casing walls (11), and a first recess (111) is formed in at least one of the two first casing walls (11); and thermal insulation pads (20), one of which is at least partially arranged in the first recess (111).
Absstract of: WO2025145618A1
Provided in the present application are a battery welding apparatus and a battery welding method. The battery welding apparatus comprises a conveying line, a battery cell feeding device, a connecting piece feeding device and a welding device. The conveying line comprises a plurality of carriers arranged in a conveying direction thereof. The battery cell feeding device comprises at least two battery cell feeding mechanisms, the at least two battery cell feeding mechanisms being respectively used for feeding at least two battery cell groups into at least two target carriers of the conveying line, and each battery cell group comprising at least two battery cells. The connecting piece feeding device is used for feeding connecting pieces into the at least two target carriers. The welding device is arranged beside the conveying line. The conveying line is movably arranged to successively convey the at least two target carriers to the welding device for welding. The welding device is used for welding the connecting piece and the at least two battery cells in each target carrier. The battery welding apparatus of the present application improves the welding efficiency.
Absstract of: WO2025145851A1
A composite negative electrode sheet, a preparation method therefor and a lithium ion battery. The composite negative electrode sheet uses a double-layer coating design. A first active substance layer and a second active substance layer are successively provided on the surface of a negative electrode current collector, the active substance of the first active substance layer being first graphite, and the active substance of the second active substance layer being second graphite. The height-width ratio and OI value of the first graphite and the height-width ratio and OI value of the second graphite satisfy the following relationship: 2≤(B×OIa)/(A×OIb)≤30, where A is the height-width ratio of the first graphite and is 0.1 to 0.65, OIa is the OI value of the first graphite and is 8 to 20, B is the height-width ratio of the second graphite and is 0.8 to 0.99, and OIb is the OI value of the second graphite and is 2 to 10.
Absstract of: WO2025145651A1
Provided in the present application are a high-voltage box (400), a battery (100) and an electrical device. The high-voltage box (400) comprises a box body (410) connected to a case body (10), an accommodation cavity (4101) being formed in the box body (410), and the box body (410) being provided with a through hole (411) communicated with the accommodation cavity (4101). The high-voltage box (400) provided in the embodiments of the present application enables an electrical connection structure (30) of the battery (100) to be inserted into the through hole (411) and to extend into the accommodation cavity (4101), such that the electrical connection structure (30) and an electrical component (420) in the box body (410) can be directly and electrically connected, which, compared with the manner of mating connection of a male terminal and a female terminal of a connector, can effectively reduce the probability of connection failure.
Absstract of: WO2025145761A1
The present application relates to a formation method for a metal battery, a metal battery and an electrical apparatus. The formation method comprises: successively charging a battery cell n times, n≥2, the charging being in a negative pressure environment, and as the number of charging times increases, used charging rates increasing progressively and the temperatures of temperature conditions for the charging decreasing progressively. Using the formation method can remarkably reduce gas produced by metal batteries in storage and usage processes so as to ameliorate the bulging problem of battery cell pouches, and moreover have certain improvement effects on the cycle performance of the batteries.
Absstract of: WO2025145796A1
The present invention provides a laminated battery cell, and a preparation method and preparation system for the laminated battery cell. The laminated battery cell comprises: a composite unit; and at least two single negative electrode sheets, the at least two single negative electrode sheets being spaced apart from each other in the thickness direction of the laminated battery cell, and one composite unit is provided between every two single negative electrode sheets, thereby forming a laminated cell structure. The composite unit comprises a negative electrode sheet, a first positive electrode sheet, a second positive electrode sheet, and a plurality of separator sections; in the thickness direction, the first positive electrode sheet and the second positive electrode sheet are respectively provided on two opposite sides of the negative electrode sheet; the plurality of separator sections are sequentially provided at intervals in the thickness direction; and the first positive electrode sheet or the second positive electrode sheet or the negative electrode sheet is provided between two adjacent separator sections. The technical solution of the present invention solves the problem in the prior art of low preparation efficiency or material utilization rate of a laminated battery cell.
Absstract of: WO2025145926A1
The present application provides an electrochemical apparatus and an electronic apparatus. The electrochemical apparatus comprises an electrolyte, a separator, a positive electrode sheet and a negative electrode sheet; the electrolyte comprises a compound represented by formula (I); based on the mass of the electrolyte, the mass percentage content of the compound represented by formula (I) is A%, where 30≤A≤80; the separator comprises a porous substrate and a porous coating arranged on at least one side of the porous substrate, the porosity of the separator being 25%-35%. The present application regulates and controls the structure of the separator and components of the electrolyte and combines same, such that the OCPD cycle performance of the electrochemical apparatus is improved by means of the synergy of the separator and the electrolyte.
Absstract of: WO2025145842A1
A heat treatment device (100) and a battery processing apparatus. The heat treatment device (100) comprises: an oven (10), which is internally provided with a conveying channel (11); a first heating assembly (20), which is provided with an air supply port (21) in communication with the conveying channel (11); and a second heating assembly (30), which is used for projecting laser onto a surface of an electrode sheet (200) in the conveying channel (11), wherein in a preset direction, the first heating assembly (20) and the second heating assembly (30) are respectively located on two sides of the conveying channel (11), and the opening direction of the air supply port (21) is arranged opposite the projection direction of the second heating assembly (30). The first heating assembly (20) performs heat treatment on the electrode sheet (200) in an air supply manner, and the second heating assembly (30) performs heat treatment on the electrode sheet (200) in a laser manner, such that heating effects of two different manners can be combined, thereby improving the quality of heat treatment of the electrode sheet (200); moreover, the opening direction of the air supply port (21) is arranged opposite the projection direction of the second heating assembly (30), such that the first heating assembly (20) and the second heating assembly (30) can work together, thereby making the electrode sheet (200) heated more uniformly.
Absstract of: WO2025145783A1
A battery pack box body (100), a battery pack (1000), an electrical apparatus, and a method for manufacturing the battery pack box body (100), belonging to the technical field of batteries. The battery pack box body (100) comprises: a bottom plate (110); a side wall assembly (130), which surrounds and extends in the circumferential direction of the bottom plate (110) and is connected to the bottom plate (110); a moldable material assembly (120), at least part of the moldable material assembly (120) extending in the circumferential direction of the side wall assembly (130) so as to provide support on the inner side and the outer side of the side wall assembly (130); and a composite material member (140), the composite material member (140) extending in the circumferential direction of the side wall assembly (130) and forming on the inner side of the side wall assembly (130) a cavity (190) capable of accommodating battery cells (180) of the battery pack (1000).
Absstract of: WO2025145779A1
The present application applies to the technical field of batteries. Provided are a current collecting assembly and a preparation process therefor, a heat exchange apparatus, a battery and an electric device. The current collecting assembly comprises a current collector and a connector, wherein the current collector is a non-metal part, and the connector is a metal part; the current collector and the connector constitute an integrally formed component; and the current collector is connected to a heat exchanger by means of the connector. The present application aims to reduce the processing difficulty of a heat exchange device, and can appropriately reduce the cost.
Absstract of: WO2025145683A1
The present invention provides a lithium-ion battery, comprising a case, and a battery cell and an electrolyte which are provided in the case. The electrolyte comprises a carbon-carbon unsaturated bond containing nitrile additive with a mass percentage of 0.02%-2.5%; the battery cell comprises a positive electrode sheet and a negative electrode sheet; the positive electrode sheet comprises a positive electrode active material layer; the positive electrode active material layer comprises a positive electrode active particle containing a nitrile group on the surface; the mass ratio of nitrogen atoms in the nitrile group is X% within an area between an outer surface and a first selected surface of the positive electrode active particle, wherein 0.1≤X; the negative electrode sheet comprises a negative electrode active material layer; the negative electrode active material layer comprises a negative electrode active particle; and the mass ratio of nitrogen atoms is Y% within an area between an outer surface and a second selected surface of the negative electrode active particle, wherein 0
Absstract of: WO2025145631A1
The present application provides a battery cell, a battery, an electric device, and a battery state monitoring method. The battery cell comprises a battery body, a carrier communication unit, and a sensor assembly; the battery body is provided with a pole that extends from the interior of the battery body to the exterior of the battery body; the sensor assembly is electrically connected to the carrier communication unit, and the carrier communication unit is electrically connected to the pole; and the carrier communication unit is used for receiving monitoring parameters, generating a parameter packet by means of a link layer on the basis of the monitoring parameters, and converting the parameter packet into a first carrier signal by means of a physical layer, so as to load the first carrier signal on the pole and transmit the first carrier signal to a power supply bus. The present application can use the carrier communication unit to quickly and timely send a carrier signal with the monitoring parameters, thereby reducing the possibility of an accident caused by battery issues and improving the monitoring efficiency of the battery cell.
Nº publicación: WO2025145657A1 10/07/2025
Applicant:
CONTEMPORARY AMPEREX TECH CO LIMITED [CN]
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Absstract of: WO2025145657A1
A battery cell (102), a battery (100), and an electrical apparatus, belonging to the technical field of batteries. The battery cell (102) comprises: a first housing wall (11), electrode columns (2), and sealing insulation assemblies (3). The first housing wall (11) is provided with mounting holes (12). The electrode columns (2) comprise penetrating portions (21) arranged in the mounting holes (12) in a penetrating manner, and first abutting portions (22) and second abutting portions (23) connected to the penetrating portions (21) and abutting against two sides of the first housing wall (11). The first abutting portions (22) abut against the first housing wall (11) by means of riveting. The sealing insulation assemblies (3) are insulated and fitted between the electrode columns (2) and the first housing wall (11), and comprise first insulating pieces (31) at least partially arranged between the first abutting portions (22) and the first housing wall (11), and second insulating pieces (32) at least partially arranged between the second abutting portions (23) and the first housing wall (11). The elastic modulus of the first insulating pieces (31) is less than or equal to the elastic modulus of the second insulating pieces (32).
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