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1111
resultados
Última actualización
25/01/2026 [07:40:00]
Resultados 450 a 475 de 1111
Resumen de: GB2642713A
A vehicle battery enclosure (200, figure 2) comprises a housing for receiving a plurality of battery subassemblies (206, figure 2), the battery subassemblies each comprising a plurality of cells. The housing comprises at least one dividing wall 406 defining a plurality of receiving portions 408,410 for accommodating the plurality of battery subassemblies, one or more dividing wall defining an internal cavity 412 and including a thermal protection element 414 arranged in the internal cavity. The thermal protection element reduces heat transfer from one receiving portion to an adjacent receiving portion to mitigate against thermal runaway if one subassembly fails. The thermal protection element may be arranged to deflect gases emitted from cell vents 416,418 and prevent passage of vent gases between adjacent battery subassemblies. The thermal protection element may extend only partially into the cavity as shown or may extend along the entire length of the cavity, either diagonally (figure 6B) or parallel to the dividing walls outer surfaces (figure 8A).
Resumen de: EP4683103A1
Embodiments of this application provide a battery cell and a preparation method thereof, a battery, an electric apparatus, and an energy storage apparatus, improving the internal insulation performance of the battery cell. The battery cell includes: a housing; an electrode assembly, where the electrode assembly is accommodated in the housing; an electrode terminal, where the electrode terminal is disposed on the housing; and a connecting member, where the connecting member is configured to connect the electrode terminal and the electrode assembly and a first insulating portion is disposed on at least a portion of a surface of the connecting member facing the housing.
Resumen de: EP4682275A1
The present disclosure provides an Mn-M binary multi-phase alloy, comprising: 39 wt% ≤ Mn ≤ 78 wt%, with the balance including metal M. The standard electrode potential of the metal M is higher than the standard electrode potential of Mn, and an αMn phase, a γM-Mn phase, and a y'Mn-M phase are distributed in the binary metal multi-phase alloy. In addition, the present disclosure further relates to a method for preparing the Mn-M binary multi-phase alloy, a use thereof in preparation of a porous material, a current collector including the porous material, a secondary battery, and an electrical device.
Resumen de: EP4682994A1
The present application provides a polymer, a preparation method, a negative electrode plate, a secondary battery, and a power consuming apparatus. The polymer contains a structural unit derived from an unsaturated carboxylic acid monomer, a structural unit derived from an unsaturated cyano monomer, and a structural unit derived from a flexible monomer. The glass transition temperature of the flexible monomer is -60°C to 0°C, and optionally -55°C to -15°C. The polymer can reduce warping of the electrode plate and widen a processing window of the electrode plate.
Resumen de: EP4682989A1
Positive active material particles according to one aspect of the present invention include a lithium transition metal compound having a polyanion structure, in which a breaking test force is 3.5 mN or more.
Resumen de: EP4683033A1
Disclosed is a battery module, and a battery pack and a vehicle including the same. The battery module includes a battery cell stack in which a plurality of battery cells are stacked; a case in which the battery cell stack is accommodated; and a cooling member disposed between the plurality of battery cells, wherein the battery cells include only a first battery cell having electrode leads respectively formed at both sides thereof, or include only a second battery cell having both electrode leads formed at one side thereof.
Resumen de: EP4682111A2
This application provides a positive active material, a positive electrode plate, an electrochemical energy storage apparatus, and an apparatus. The positive active material is LixNiyCozMkMepOrAm or LixNiyCozMkMepOrAm whose surface is provided with a coating layer. The positive active material is secondary particles, and a particle size Dn10 of the positive active material satisfies: 0.5 µm≤Dn10≤3 µm. In this application, particle morphology of the positive active material and the amount of micro powder in the positive active material are properly controlled, to effectively reduce side reactions between the positive active material and an electrolyte, decrease gas production of the electrochemical energy storage apparatus, and improve storage performance of the electrochemical energy storage apparatus without deteriorating energy density, cycle performance and rate performance of the electrochemical energy storage apparatus.
Resumen de: EP4682112A2
This application provides a positive active material, a positive electrode plate, an electrochemical energy storage apparatus, and an apparatus. The positive active material is LixNiyCozMkMepOrAm or LixNiyCozMkMepOrAm whose surface is provided with a coating layer. The positive active material is secondary particles, and a particle size Dn10 of the positive active material satisfies: 0.5 µm≤Dn10≤3 µm. In this application, particle morphology of the positive active material and the amount of micro powder in the positive active material are properly controlled, to effectively reduce side reactions between the positive active material and an electrolyte, decrease gas production of the electrochemical energy storage apparatus, and improve storage performance of the electrochemical energy storage apparatus without deteriorating energy density, cycle performance and rate performance of the electrochemical energy storage apparatus.
Resumen de: EP4683069A1
A battery module includes a battery cell stack including a plurality of battery cells, a plurality of busbars electrically connecting the plurality of battery cells, and a module housing made of a synthetic resin material, and including a busbar holder portion supporting the plurality of busbars, and a sidewall portion surrounding side surfaces of the battery cell stack that does not face the busbar holder portion and connected to the busbar holder portion.
Resumen de: EP4683002A1
The invention provides a battery cell (20), semi-finished stacked battery cells structure and the positioning method thereof. The battery cell (20) includes a positive and a negative current collector (41, 42), which respectively includes an active material coating zone (411, 421), a glue frame adhering zone (54a, 54b), an electric output zone (413, 423) and a remaining zone considered as invalid zone (22). At least two through holes (23) are located at the invalid zone (22). The battery cells (20) will be positioned by positioning pins (32) inserted into the through holes (23) of a plurality of stacked battery cells (20). After welding the positive and the negative electric output zones (413, 423), the invalid zones (22) are cut to make the energy density be maximized for the stacked battery cells (20).
Resumen de: EP4683004A1
An electrode plate body (1) includes a coated region (13) and a blank foil region (11) located at one end corner of the electrode plate body (1). A notched region (12) is provided at another end corner of the electrode plate body (1). A first boundary line (14) is between the blank foil region (11) and the coated region (13). An angle between a right-angled edge of the blank foil region in the short-side direction of the electrode plate body (1) and the first boundary line (14) ranges from 30° to 60°. A second boundary line (15) is between a notched region (12) and the coated region (13). An angle between the right-angled edge of the notched region (12) in the short-side direction of the electrode plate body (1) and the second boundary line (15) ranges from 30° to 60°.
Resumen de: WO2025248470A1
The invention relates to an electrical module (1) comprising: • - a lower wall; • - an upper wall (3) opposite the lower wall; • - a first side wall (4) connecting the lower wall to the upper wall; • - a second side wall (5) opposite the first side wall and connecting the lower wall to the upper wall; • - an inlet wall (6) secured to the lower wall, to the upper wall, to the first side wall and to the second side wall; • - an outlet wall (7) opposite the inlet wall and secured to the lower wall, to the upper wall, to the first side wall and to the second side wall, wherein the lower wall, the upper wall, the first side wall, the second side wall, the inlet wall and the outlet wall together define an internal cavity intended to be filled with a dielectric liquid.
Resumen de: GB2642786A
An easily-demolded high-insulation low-corrosion condensed aerosol fire extinguishing agent and a preparation method therefor. Strontium nitrate and potassium nitrate are jointly used as an oxidizing agent, and molybdenum disulfide, niobium diselenide, etc. are used as additives, for mixing, bonding, granulation, and compression with other raw materials so as to obtain a condensed aerosol fire extinguishing agent; and a sprayed substance of the condensed aerosol fire extinguishing agent has the advantages of high insulation and low corrosion. The additives added in the condensed aerosol fire extinguishing agent can cause relative slippage during grain demolding to form a hydrophobic slippage plane, so that a lubricating effect is achieved, the agent is prevented from absorbing moisture in air, and the problems that the condensed aerosol fire extinguishing agent containing strontium nitrate is prone to moisture absorption and failure, and is difficult to demold in compression molding are solved; and the storage requirements of the condensed aerosol fire extinguishing agent are reduced, and the compression process is simplified.
Resumen de: EP4682965A1
An electrochemical apparatus includes a negative electrode plate and an electrolyte. The negative electrode plate includes a negative electrode material layer. The negative electrode material layer includes a silicon-based material. The silicon-based material includes silicon element, and based on a total mass of the negative electrode material layer, a mass percentage of the silicon element is 30% to 60%. The electrolyte includes fluoroethylene carbonate and a compound of formula I. R<sub>1</sub> and R<sub>2</sub> are each independently selected from hydrogen atom, fluorine atom, substituted or unsubstituted C<sub>1</sub>-C<sub>5</sub> alkyl group, substituted or unsubstituted C<sub>6</sub>-C<sub>10</sub> aryl group, and substituted or unsubstituted C<sub>2</sub>-C<sub>6</sub> carboxylate group, and when substituted, the substituents on the carboxylate group, the alkyl group, and the aryl group are fluorine atoms.
Resumen de: EP4683102A2
A battery (100) and an electronic device are provided. The battery (100) includes a housing assembly (5), a bare cell (1), and an electrode adapting piece (2). The bare cell (1) is disposed within the housing assembly (5) and includes a positive electrode piece (111), a negative electrode piece (112), and a separator (113), which are stacked sequentially and wound around a winding axis. An end of the bare cell (1) along the winding axis is provided with a tab (114). The electrode adapting piece (2) is welded with the tab (114), and forms at least one continuous welding mark (3). At least part of the welding mark (3) extends from an outer periphery of the bare cell (1) to an inner periphery. The welding mark (3) includes an arc segment (32), and a curvature radius of the welding mark (3) is greater than or equal to 0.5mm.
Resumen de: EP4682985A2
The present application discloses a positive electrode active material and a preparation method thereof, a positive electrode plate, a lithium-ion secondary battery and a battery module, a battery pack and an apparatus related thereto. The positive electrode active material includes a lithium nickel cobalt manganese oxide, the molar content of nickel in the lithium nickel cobalt manganese oxide accounts for 60% - 90% of the total molar content of nickel, cobalt and manganese, and the lithium nickel cobalt manganese oxide has a layered crystal structure of a space group R 3m; a transition metal layer of the lithium nickel cobalt manganese oxide includes a doping element, and the local mass concentration of the doping element in particles of the positive electrode active material has a relative deviation of 20% or less; and in a differential scanning calorimetry spectrum of the positive electrode active material in a 78% delithiation state, an initial exothermic temperature of a main exothermic peak is 200°C or more, and an integral area of the main exothermic peak is 100 J/g or less.
Resumen de: EP4683043A1
An electric battery unit comprises an array of battery cells (2) immersed, within a container (4) of the battery unit (1), in a flow of a temperature-regulating fluid, for keeping the battery unit within a specified temperature range. Each cell (2) has a positive pole (3P), a negative pole (3N) and a vent valve (V) arranged on a side surface (2C) of the cell, facing a side wall (4A) of the container (4). All the positive poles (3P), all the negative poles (3N) and all the vent valves (V) of the cells (2) are contained within three respective side chambers (CP, CN, CV) of the battery unit (1) that are isolated from each other and are isolated with respect to the spaces (7) between the cells (2). Each of the side chambers (CP, CN, CV) communicates with an inlet collector chamber (5) and an outlet collector chamber (6). An additional side chamber (CE) permanently communicates with the inlet collector chamber (5) and is also configured to communicate with the side chamber (CV) containing the vent valves (V) via at least one passage normally obstructed by a separator element (F). The separator element (F) is configured to melt and/or break and/or deform as a result of a rise in temperature and/or pressure due to hot gases escaping from one or more vent valves (V) when one or more cells enter thermal runaway conditions. Thus, an additional flow of the temperature-regulating fluid is supplied within the side chamber (CV) containing the vent valves (V).
Resumen de: EP4683042A1
L'invention concerne un véhicule automobile électrique ou hybride comportant un bac de batterie (1) comprenant une batterie (2), ledit véhicule comportant un dispositif chauffage-ventilation-climatisation (3) et un conduit (4) reliant ledit dispositif chauffage-ventilation-climatisation (3) et ledit bac de batterie (1), caractérisé en ce que ladite batterie (2) comporte une partie supérieure (2a) et une partie inférieure (2b), le bac de batterie (1) comportant un premier passage d'air au-dessus de la partie supérieure (2a), un deuxième passage d'air entre la partie supérieure (2a) et la partie inférieure (2b) et un troisième passage d'air en dessous de la partie inférieure (2b), ledit conduit (4) comportant une trappe (5) et un ventilateur (6).
Resumen de: EP4683166A1
The present application provides a temperature control method for an energy storage supercharging equipment, which is applied to a thermal management system. The thermal management system is respectively connected with an energy storage battery, a bidirectional ACDC, a DCDC, and a liquid-cooling charging cable in the energy storage supercharging equipment. The method includes, according to operating states of the energy storage supercharging equipment, determining a to-be-monitored object and obtaining temperature parameters thereof, in which the to-be-monitored object includes at least one of the energy storage battery, the bidirectional ACDC, the DCDC, and the liquid-cooling charging cable; and according to the temperature parameters, controlling the temperature of the to-be-monitored object. According to the operating state of energy storage supercharging equipment, temperature control can be carried out for the energy storage battery, bidirectional ACDC, DCDC, and liquid-cooling charging cable in a unified manner, so as to reduce overall cost and improve temperature control efficiency.
Resumen de: EP4683025A1
A method of manufacturing a secondary battery is provided wherein efficiency of a secondary battery manufacturing process is improved and the secondary battery is more structurally stable. The method of manufacturing a secondary battery includes providing a secondary battery, injecting an electrolyte into the secondary battery, activating the secondary battery into which the electrolyte is injected, and applying ultrasonic waves to the electrolyte in the secondary battery.
Resumen de: EP4682974A2
An anode according to embodiments of the present disclosure includes an anode current collector, a first anode active material layer which is disposed on at least one surface of the anode current collector, and includes a first silicon-based active material and a first binder including a first rubber-based binder and a first cellulose-based binder. The anode includes a second anode active material layer which is disposed on the first anode active material layer, and includes a second silicon-based active material and a second binder including a second rubber-based binder and a second cellulose-based binder. A weight ratio of the first cellulose-based binder to the first rubber-based binder in the first binder is lower than a weight ratio of the second cellulose-based binder to the second rubber-based binder in the second binder.
Resumen de: EP4683165A1
The present disclosure provides a liquid-cooling temperature control method, an integrated storage and charging device, and a computer-readable storage medium. A specific implementation of the method includes: when the energy storage battery has a heating demand, if the energy storage battery is in the charging state, controlling heat generated by the bidirectional ACDC to heat the energy storage battery; when the energy storage battery has the heating demand, if the energy storage battery is in the discharging state, controlling heat generated by the DCDC and the charging cable to heat the energy storage battery. This method can mitigate energy waste.
Resumen de: EP4682996A1
The present application discloses a capacity compensation additive and a preparation method therefor, as well as a positive electrode plate, a battery and an electrical apparatus. The capacity compensation additive includes a capacity compensation agent and a catalyst-containing carbon material, and the catalyst-containing carbon material is coated on at least a portion of a surface of the capacity compensation agent.
Resumen de: EP4682979A1
A method for preparing a positive electrode material, a positive electrode material, a positive electrode plate, a battery, and an electric apparatus are provided. The method for preparing a positive electrode material includes: mixing a precursor lithium manganese iron phosphate, a carbon source, and a source of a doping element in a solvent, drying, and sintering to obtain a positive electrode material. The positive electrode material includes a core and a coating layer coating the core; the core includes LiMn<sub>x</sub>Fe<sub>1-x</sub>PO<sub>4</sub>, where 0 < x < 1; the coating layer includes carbon and a doping element; and the doping element includes one or more of Group IIA elements, Group IIIA elements, Group IVA elements, and transition metal elements. The method reduces the powder resistivity and specific surface area of the positive electrode material, and improves the gram capacity and cycling performance of a battery.
Nº publicación: EP4682980A1 21/01/2026
Solicitante:
JIANGSU CONTEMPORARY AMPEREX TECH LTD [CN]
JIANGSU LITHITECH CO LTD [CN]
Jiangsu Contemporary Amperex Technology Limited,
Jiangsu Lithitech Co., Ltd
Resumen de: EP4682980A1
A precursor material, a method for preparing the precursor material, a positive electrode material, a method for preparing the positive electrode material, a positive electrode plate, a battery, and an electric apparatus. The precursor material includes a compound MnxFeyM(1-x-y)HPO4·nH2O, where 0.9 ≤ x+y < 1,0 < x ≤ 0.9, 0 < y ≤ 0.9, 0 ≤ n ≤ 6, and M includes one or more of transition metal elements other than manganese and iron, Group IIA metal elements, Group IIIA metal elements, and Group IVA metal elements. The precursor material has a uniform distribution of elements and good batch consistency, and a prepared positive electrode material has a uniform distribution of elements and good batch consistency, improving the specific capacity and cycling performance of a battery.
BOPI
Sede Electrónica
