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1603
resultados
Última actualización
10/11/2025 [07:13:00]
Resultados 1225 a 1250 de 1603
Resumen de: EP4641667A1
The present invention relates to a positive electrode active material for a lithium secondary battery, which comprises:a core including a layered lithium transition metal oxide containing 60 mol% or more of nickel (Ni) based on the total moles of transition metals; and a coating layer disposed on the core and comprising cobalt (Co), aluminum (Al), or a combination thereof, wherein the positive electrode active material is composed of a single particle, and the coating layer is formed in an island-type structure.
Resumen de: EP4641756A1
The present disclosure relates to a method for processing a waste battery including: providing a waste battery; discharging the waste battery; and crushing the discharged waste battery, wherein the discharging of the waste battery has a discharge rate of 0.5 Voltage/min or less, and satisfies Equation 1: 0.1≤dischargerate×expansionamount×maximumtemperature≤50.0 (the discharge rate represents the discharge rate Voltage/min at the discharging of the waste battery, and the expansion amount mm and the maximum temperature °C respectively represent the expansion amount and the maximum temperature of the waste battery in the discharging of the waste battery.)
Resumen de: EP4641666A1
The present exemplary embodiments relate to a positive electrode active material for a lithium secondary battery, and a lithium secondary battery including the same. The positive electrode active material for a lithium secondary battery according to an exemplary embodiment includes: a metal oxide in the form of a single particle; and a coating layer positioned on the surface of the metal oxide, wherein a concentration of lithium in a 2/5 to 3/5 thickness area based on the total thickness of the coating layer has a lower value than a concentration of lithium in the metal oxide.
Resumen de: EP4641665A1
The present exemplary embodiments relate to a positive electrode active material for a lithium secondary battery, and a lithium secondary battery including the same. The positive electrode active material for a lithium secondary battery according to an exemplary embodiment includes: a metal oxide which is in the form of a single particle and includes a layered structure; and a coating layer which is positioned on the surface of the metal oxide and includes a layered structure, wherein an average interplanar distance value of the layered structure included in the coating layer is smaller than an average interplanar distance value of the layered structure included in the metal oxide.
Resumen de: EP4641797A1
The present invention provides a battery case comprising: a side wall portion installed to surround side surfaces of a reception space; and stacked modules each having a battery module received therein, the multiple stacked modules being stacked and installed in a height direction in the reception space, wherein the stacked modules include: a first stacked module connected to the side wall portion and installed to block the lower portion of the reception space; and at least one second stacked module disposed at the upper side of the first stacked module.
Resumen de: EP4641763A1
Batterie (10) pour véhicule électrique ou hybride, comprenant un boîtier (12) définissant un logement s'étendant dans une direction longitudinale (X) et dans une direction transversale (Y), une pluralité de modules (16) comportant plusieurs cellules électrochimiques (18), et un système (20) de refroidissement et de renfort, le système comprenant :- des traverses (24A, ...24F) s'étendant transversalement dans le logement, et définissant respectivement dans la direction transversale des conduits internes destinés à recevoir un fluide réfrigérant (28), chacun des modules s'étendant longitudinalement entre deux des traverses et étant en contact thermique avec au moins une des deux traverses,- des connecteurs (30) pour relier fluidiquement le conduit interne d'une des traverses à celui d'une autre.Les connecteurs et les traverses forment un ou plusieurs parcours (F1...F13) pour permettre au fluide réfrigérant de passer dans les conduits internes.
Resumen de: EP4641646A1
According to an embodiment of the present disclosure, there is provided a method for forming patterns on a traveling electrode by providing an active material onto a current collector, the method comprising the steps of: (A) moving a doctor blade to the traveling electrode so that the end of the tip of the doctor blade faces the current collector; (B) maintaining the state in which the doctor blade has moved to the traveling electrode for a first predetermined period; and (C) moving the doctor blade in an opposite direction from the electrode.
Resumen de: EP4640305A1
The present invention provides a lithium-selective permeable membrane that can be used to recover lithium ions without performing complicated treatments on the lithium-selective permeable membrane, and that can reduce the time and cost required for recovering lithium ions. A lithium-selective permeable membrane 10 of the present invention includes a sintered body of a lithium-ion conductor. At least a part of a region of an outer surface of the lithium-selective permeable membrane 10 is composed of a surface-roughened surface 101.
Resumen de: EP4641813A1
An energy storage device includes: a first electrode assembly and a second electrode assembly; and a first current collector. The first electrode assembly includes a first body part and a first tab part extending from an end of the first body part in a first direction. The second electrode assembly includes a second body part and a second tab part extending from an end of the second body part in the first direction. The first tab part and the second tab part are superimposed in the first direction and are joined to the first current collector at a first junction part. The first tab part is located between the second tab part and the first current collector at the first junction part. A length of the first tab part is shorter than a length of the second tab part.
Resumen de: EP4641701A1
A positive composite for an energy storage device according to an aspect of the present invention includes a positive active material and a conductive auxiliary agent, in which the conductive auxiliary agent includes a carbon nanotube, and, in a Log differential pore volume distribution, a ratio B/A of a maximum value B cm<sup>3</sup>/g of a differential pore volume within a pore size range of 100 nm or more and 3000 nm or less to a maximum value A cm<sup>3</sup>/g of a differential pore volume within a pore size range of 10 nm or more and 100 nm or less is 4.50 or more.
Resumen de: EP4641669A1
Provided are a silicon-carbon battery cell for a power tool, a battery pack, an energy storage device, a power tool, and a charger for a battery pack. The silicon-carbon battery cell includes: a positive electrode plate (1311); a negative electrode plate (1312) including a silicon material, a carbon material, and a binder; and an electrolyte (1314) disposed between the negative electrode plate (1312) and the positive electrode plate (1311). The binder includes polyacrylic acid and styrene-butadiene rubber.
Resumen de: EP4641663A1
Disclosed are a positive electrode active material for a rechargeable lithium battery, a preparation method thereof and a rechargeable lithium battery, the positive electrode active material for a rechargeable lithium battery including a first positive electrode active material in a form of secondary particles including a lithium nickel-cobalt-aluminum-based composite oxide and formed by agglomerating a plurality of primary particles, wherein at least a portion of the primary particles is oriented radially; and a second positive electrode active material in a form of secondary particles including a lithium nickel-cobalt-aluminum-manganese-based composite oxide, and formed by agglomerating a plurality of primary particles, wherein an average particle diameter of secondary particles of the first positive electrode active material is larger than an average particle diameter of the secondary particles of the second positive electrode active material.
Resumen de: EP4640856A1
The present invention relates to a high temperature reduction device for waste battery recycling and a heat treatment method for waste battery recycling, and high temperature reduction device includes: a charging portion that injects a raw material; a heating portion for heating the raw material injected from the charging portion; a cooling portion that cools a heat-treated product; and a discharge portion that discharges a reactant cooled from the cooling portion, wherein the heating portion includes: a preliminary heat treatment portion for performing preliminary heating to the raw material injected from the charging portion; and a high-temperature heat treatment portion for heating to a higher temperature than the preliminary heat treatment portion, and the high-temperature heat treatment includes a heat treatment portion that performs a heat treatment at a temperature of 1150 to 1400 °C.
Resumen de: EP4641781A1
Disclosed herein is a pouch-type battery case including a pouch film laminate. A cup part can include a bottom surface and a side surface, and a flat part disposed to surround the cup part. The side surface can include a first curved portion, a planar portion, and a second curved portion, the pouch film laminate can include a base material layer, a sealant layer and gas barrier layer disposed therebetween. The pouch-type battery case is configured to satisfy Equation 1 : 0.01≤D/A−RP+RD+C where D is the gas barrier layer thickness, A is a vertical depth of the cup part, RP is a curvature radius of the first curved portion between the bottom surface and the flat part, RD is a curvature radius of the second curved portion between the planar portion and the flat part, and C is a horizontal length of the planar portion.
Resumen de: EP4641664A1
The present exemplary embodiments relate to a positive electrode active material for a lithium secondary battery, and a lithium secondary battery including the same. The positive electrode active material for a lithium secondary battery according to an exemplary embodiment includes: a metal oxide in the form of a single particle; and a coating layer positioned on the surface of the metal oxide, wherein the coating layer includes a plurality of stripe shapes including a protruding portion based on a cross section in a length direction.
Resumen de: US2024222594A1
A method for manufacturing a battery electrode includes mixing particles of active electrode materials, conductive additives, and binder to form a dry powder electrode material. The dry powder is then deposited onto a moving electrode current collector using a dry powder dispensing device. The dry powder is a loose powder continuously poured from the dispensing device onto a moving current collector in a roll-to-roll system where the powder remains loose on the current collector as it travels towards a compaction stage. After being poured onto the current collector, the loose dry powder is uniformly spread across the width of the moving current collector web by one or more spreading devices, such as smoothing rollers and conditioning rollers. Finally, the dry powder is compacted using a calender configured to apply pressure and/or heat to the dry powder electrode material to activate the binder and form a battery electrode.
Resumen de: EP4641821A1
Some embodiments of this application provide a battery cell, a battery, and an electric device, where the battery cell includes a first wall, an electrode terminal, and a separation component; the electrode terminal is mounted on the first wall; at least part of the separation component is disposed between the first wall and the electrode terminal; and at least a partial structure of the separation component has a yield strength Q1, where Q1 satisfies: Q1≥30 MPa. In some embodiments of this application, a yield strength of at least a partial structure of the separation component is set to be not less than 30 MPa, reducing a risk that the separation component is completely crushed during processing of the electrode terminal, improving a yield rate of the separation component after the battery cell is manufactured, reducing a risk of direct contact between the electrode terminal and the first wall, and improving safety of the battery cell.
Resumen de: EP4641709A1
This application provides a current collector with a coating, a secondary battery, a battery module, a battery pack, and an electrical device. The coating includes at least a surface modification layer. The coating is formed on at least one side of the current collector. A thickness of the surface modification layer is not greater than 50 nm. The coating formed on at least one side of the current collector can effectively block direct contact between a negative electrode metal and an electrolyte solution constituent, thereby reducing side reactions between the negative electrode metal and the electrolyte solution, significantly reducing gas generated by the battery during a long period of cycling, and improving the cycle performance and safety of the battery.
Resumen de: EP4641738A1
An electrolyte for a sodium-ion secondary battery, a sodium-ion secondary battery, and an electric apparatus. The electrolyte for the sodium-ion secondary battery comprises a metal sodium salt and a solvent, wherein the desolvation energy of a sodium ion-solvent complex formed by sodium ions of the metal sodium salt and the solvent is less than or equal to 100 kJ/mol. In this way, the reaction kinetics of the sodium-ion secondary battery at a low temperature can be improved, and the low-temperature performance of the sodium-ion secondary battery is improved.
Resumen de: EP4640926A1
Provided in one embodiment of the present invention is a copper foil comprising a copper film, which comrpises 99.9 wt% or more of copper, wherein the copper film has an A-value of 1.1-1.6. A is calculated by the following relation 1, Relation 1 A=P/Q, P in relation 1 is the peak intensity at 1650 cm<sup>-1</sup>, of the copper film, Q in relation 1 is the peak intensity at 1460 cm<sup>-1</sup>, of the copper film, and the peak intensities are measured by FT-IR. Provided in one embodiment of the present invention is the copper foil and a manufacturing method therefor, the copper foil comprising a copper film, which comprises 99.9 wt% or more of copper and has a first stress coefficient of 2.8-3.2, a second stress coefficient of 2.5-3.0 and a third stress coefficient of 3.5-4.5. The first stress coefficient is calculated by relation 2, relation 2 first stress coefficient =A/A'+B/B'+C/C'. The second stress coefficient is calculated by relation 3, relation 3 second stress coefficient = A/B+A'/B'. The third stress coefficient is calculated by relation 4, relation 4 third stress coefficient = A/C+A'/C', A in relation 2 is stress at 50% elongation in MD, A' in relation 2 is stress at 50% elongation in TD, B in relation 2 is stress at 10% elongation in MD, B' in relation 2 is stress at 10% elongation in TD, C in relation 2 is stress at 5% elongation in MD, and C' in relation 2 is stress at 5% elongation in TD. In addition, provided in another embodiment of th
Resumen de: EP4641699A1
This binder composition for a non-aqueous secondary battery contains a copolymer and a tackifier, the copolymer has a first structural unit derived from a monomer (a1) and a second structural unit derived from a monomer (a2), the monomer (a1) is a nonionic compound having only one ethylenically unsaturated bond, and the monomer (a2) is a compound having a carboxyl group and having only one ethylenically unsaturated bond.
Resumen de: EP4641589A1
Provided is a polymer electrolyte that is not susceptible to any decrease in strength even in a high temperature range and has high ion conductivity at room temperature and lower temperatures even without relying on a liquid electrolyte. This polymer electrolyte contains a polymer that has a specific polyether structure having a free end, a crosslinked structure produced using a specific polyether, and a specific ammonium cationic group, the polymer electrolyte furthermore containing a lithium salt, and the volume swelling ratio of the polymer electrolyte being 40-120% as determined by a methyl ethyl ketone immersion method.
Resumen de: EP4641780A1
A packaging material for a power storage device includes at least a substrate layer, a barrier layer, an adhesive layer, and a sealant layer in this order. In the packaging material, at least either of the adhesive layer and the sealant layer includes a filler-containing layer that contains a filler containing layered clay minerals. The filler-containing layer may be obtained using a resin composition containing a resin and a filler. Of the adhesive layer and the sealant layer, the adhesive layer may include the filler-containing layer, and the resin in the resin composition may comprise a modified polyolefin resin.
Resumen de: EP4641668A1
This application relates to a positive electrode active material, a preparation method thereof, a positive electrode plate, a secondary battery, and an electric apparatus. The positive electrode active material includes: a core and a first coating layer applied on at least a portion of an outer surface of the core, the core includes a lithium-containing nickel-based transition metal oxide, and the first coating layer includes cerium element. In the lithium-containing nickel-based transition metal oxide, a molar proportion of nickel element among all elements excluding lithium element and oxygen element ranges from 50% to 100%.
Nº publicación: EP4640746A1 29/10/2025
Solicitante:
EVE ENERGY CO LTD [CN]
Eve Energy Co. Ltd
Resumen de: EP4640746A1
A binder, including a polyamide polymer containing repeating structural units A shown in formula (I) and repeating structural units B shown in formula (II), in which R<sub>1</sub> is an aryl group not containing amide groups and amino groups, R<sub>2</sub> includes an aryl group containing at least one amide groups or at least one amino groups, and a mole ratio of the repeating structural units A to the repeating structural units B is (2: 1) to (6:1).
BOPI
Sede Electrónica
