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1832
resultados
Última actualización
05/07/2025 [08:21:00]
Resultados 675 a 700 de 1832
Resumen de: EP4579896A1
An explosion-proof structure, a battery, and a battery pack are provided. The explosion-proof structure includes a cover plate (110) and an explosion-proof groove (120) including one or more first sub-grooves (121) and one or more second sub-grooves (122). H1
Resumen de: EP4579914A1
A cover plate, a battery, and a battery pack are provided. The cover plate includes a body (111) and an explosion-proof (120). The body includes a first sub-part (113) and a second sub-part (114). The second sub-part (114) includes a sinking table (1141) and a boss (1142) connected. The second sub-part (114) includes a first side surface (1143) and a second side surface (1144) disposed oppositely. The boss (1142) is higher than the sinking table (1141) and the first sub-part (113). The explosion-proof groove (120) is disposed on the first side surface (1143). A first sub-groove (121) of the explosion-proof groove (120) is at least partially located on the sinking table (1141). A second sub-groove (122) of the explosion-proof groove (120) is located on the boss (1142).
Resumen de: EP4578827A1
The present invention relates to a carbon nanotube dispersion and a preparation method thereof, wherein the carbon nanotube dispersion includes carbon nanotubes, a first dispersant which is carboxyalkyl cellulose having a weight average molecular weight of 9,000 g/mol or less, a second dispersant which is polyvinyl butyral (PVB), and a solvent, and the carbon nanotube dispersion of the present invention has a low initial viscosity and a low viscosity change rate, and thus, is excellent in storage stability and processability.
Resumen de: EP4579798A1
A negative electrode active material comprises a carbon-based material and a silicon-based material, wherein a first functional group exists on the surface of the carbon-based material, a second functional group exists on the surface of the silicon-based material, and the first functional group has a charge opposite to that of the second functional group.
Resumen de: EP4579197A1
A device for measuring a flow rate of gas in a secondary cell according to an embodiment of the present disclosure includes a chamber accommodating the secondary cell, and a flow rate measurement unit connected to an outlet of the chamber and having a shape of a pipe.
Resumen de: EP4579868A1
A battery pack according to an embodiment of the present disclosure includes one or more first battery modules comprising a plurality of battery cells, and one or more second battery modules respectively disposed adjacent to the first battery modules and comprising a plurality of battery cells, wherein the first battery modules and the second battery modules are different from each other in a maximum state of charge (SOC).
Resumen de: EP4579937A1
A polyphenylene sulfide resin composition for a battery insulation member, including: a polyphenylene sulfide resin (a); and a silicone elastomer with crosslinked structure (b), wherein the resin composition comprises 0.1 to 15.0 parts by weight of the silicone elastomer with crosslinked structure (b) with respect to 100 parts by weight of the polyphenylene sulfide resin (a), and has a flexural modulus of 3.1 GPa or more and 3.6 GPa or less in the flexural test in accordance with ISO 178 (2010) on a test piece obtained by injection molding of the resin composition. A polyphenylene sulfide resin composition for a battery insulation member, and a battery insulation member, which combine excellent productivity, safety, and long-term reliability can be obtained.
Resumen de: EP4578997A2
One embodiment of the present disclosure provides a copper foil including a copper film including 99.9 wt% or more of copper, and a protective layer disposed on the copper film, wherein the copper foil has a first room-temperature thermal expansion coefficient of 10 ppm/°C to 25 ppm/°C and a high-temperature thermal expansion coefficient of 20 ppm/°C to 35 ppm/°C. The first room-temperature thermal expansion coefficient is a thermal expansion coefficient measured in a machine direction (MD direction), and the high-temperature thermal expansion coefficient is a thermal expansion coefficient measured in the MD direction after heat-treating the copper foil at 190 °C.
Resumen de: EP4578999A2
One embodiment of the present disclosure provides a copper foil including a copper film including 99.9 wt% or more of copper, and a protective layer disposed on the copper film, wherein the copper foil has a first moisture absorption rate of 0.1% or less. The first moisture absorption rate is expressed by Equation 1 below, first moisture absorption rate=(weight after 24-hour immersion-weight before immersion)/(weight after 24-hour immersion)x100 wherein the immersion in Equation 1 refers to immersing a specimen in water at room temperature for 24 hours.
Resumen de: EP4578826A1
The present invention relates to a carbon nanotube dispersion and a preparation method thereof, wherein the carbon nanotube dispersion includes carbon nanotubes, a first dispersant which is a cellulose-based dispersant, a second dispersant containing hexafluoropropylene (HFP) as a repeating unit, and a solvent, and the carbon nanotube dispersion of the present invention has a low initial viscosity and a low viscosity change rate, and thus, is excellent in storage stability and processability.
Resumen de: EP4579934A1
A battery pack connector and a battery pack are provided. The connector may be configured to electrically connect a battery module inside the battery pack with an electric device outside the battery pack and include an insulation base (100) and a connection portion (200). The insulation base (100) may be provided with a first through hole (110). The connection portion (200) may be embedded in the first through hole (110) and fixed to the insulation base (100), and both ends of the connection portion (200) extend out of the insulation base (100).
Resumen de: EP4579843A1
An aluminum battery includes a positive electrode (120), a negative electrode (110), a separator, and an electrolyte (130). The separator is disposed between the positive electrode (120) and the negative electrode (110). The electrolyte (130) is impregnated into the separator, the positive electrode (120), and the negative electrode (110). The electrolyte (130) includes aluminum halide, ionic liquid, and an additive, and the additive includes an isocyanate compound.
Resumen de: EP4579812A1
A positive electrode active material for a lithium ion battery, represented by the formula: LiaNi(1-b-c-d)CobMncMgdO2(wherein, in the formula, 0.98≤a≤1.09, 0.06≤b≤0.21, 0.02≤c≤0.32, 0.00005≤d≤0.003), having a 50% cumulative volumetric particle size D50 of 3.0 to 11.0 µm, a tap density of 2.0 to 2.6 g/cc, and a c-axis lattice constant of 14.184 to 14.240 Å.
Resumen de: EP4578794A1
A package structure for a battery pack is provided. The package structure for the battery pack includes a tray structure and a cover body, the tray structure includes a tray body and a support portion. At least a part of the support portion protrudes from a periphery of the tray body in a planar extension direction of the tray body. The support portion cooperates with the tray body to form a groove located at the periphery of the tray body. The cover body is arranged on a first side of the tray body. A cavity is formed on a side, facing the tray body, of the cover body. The battery pack is located on the first side of the tray body and is accommodated in the cavity. At least a part of the cover body is lapped with the groove, and the tray body is accommodated in the cavity.
Resumen de: EP4579783A1
This application provides an electrochemical apparatus and an electronic apparatus, the electrochemical apparatus including a positive electrode plate, where the positive electrode plate includes a positive electrode current collector and a positive electrode active material layer disposed on one or two sides of the positive electrode current collector, and the positive electrode active material layer includes a positive electrode active material. A ratio of Dv99 of the positive electrode active material to thickness H1 of the positive electrode active material layer on a single side satisfies 0.5 ≤ Dv99/H1 ≤ 0.9. Agglomeration regions with a bright spot having a diameter D0 greater than or equal to 20 µm are observed on surface of the positive electrode active material layer under a scanning electron microscope, and the agglomeration regions have a number density less than or equal to 5 pcs/cm<2> per unit area on the surface of the positive electrode active material layer. The electrochemical apparatus has good high-temperature cycling performance.
Resumen de: EP4578711A1
A vehicle charging method, a vehicle charging apparatus, an electronic device and a computer-readable storage medium which are applied to a charging management service platform including at least two parking spaces (A1, B3), where each of the at least two parking spaces is preset with a wireless charging coil, where the wireless charging coils preset in different parking spaces may be connected through one or more relay switches, and the vehicle charging method includes: obtaining a wireless charging request corresponding to a first vehicle parked in a first parking space (A1); and in response to the wireless charging request, determining a second parking space (B3) where a second vehicle satisfying a charging condition for the first vehicle is located, and turning on the relay switch of the one or more relay switches between a first wireless charging coil preset in the first parking space (A1) and a second wireless charging coil preset in the second parking space (B3) where the second vehicle is located, such that the second vehicle parked in the second parking space (B3) wirelessly charges the first vehicle through the second wireless charging coil. Therefore, quick and convenient charging can be provided for the first vehicle.
Resumen de: EP4579807A1
The present application discloses a lithium-manganese-nickel-containing composite oxide and a preparation method therefor, a positive electrode plate, a battery, and a power consuming device. The lithium-manganese-nickel composite oxide is in a spinel crystal form, and the ratio of the peak intensity I111 of the (111) peak to the peak intensity I400 of the (400) peak in an X-ray diffraction pattern of the lithium-manganese-nickel composite oxide is 2.1 ≤ I111/I400 ≤ 3.3, wherein the diffraction angle of the (111) peak is 20 = 18° - 19.5°, and the diffraction angle of the (400) peak is 20 = 43.5° - 45°. In the above manner, the technical solution of the present application can improve the stability of the positive electrode active material, thereby improving the overall performance of the battery.
Resumen de: EP4579260A1
A failure detection method for battery racks (100, 400) is disclosed and includes: continuously computing a voltage difference data in a computation frequency; computing a standard deviation by using the voltage difference data retrieved from each battery rack (100, 400) up to present; obtaining a first voltage trend and a second voltage trend according to the voltage difference data in a first period and the voltage difference data in a second period when the standard deviation is greater than a preliminary-filtered threshold; computing an intersection of the first voltage trend and the second voltage trend to obtain a voltage trend status; computing a voltage slope according to the voltage difference data of the second period; and generating an alarm message when the voltage trend status is abnormal and the voltage slope is greater than a slope threshold, where the alarm message indicates the position of a battery cell (120, 420) occurring overvoltage status.
Resumen de: EP4580129A1
Disclosed is an apparatus for requesting battery information, which includes a communication unit configured to communicate with a battery information provision device; a target determination unit configured to determine target information to be obtained and determine a target battery for which the target information is to be obtained from a preset battery list; and a control unit configured to generate a request packet including target battery information about the target battery and the target information, transmit the generated request packet to the battery information provision device through the communication unit, and receive a response packet including battery information of the target battery corresponding to the target information from the battery information provision device through the communication unit in response to the request packet.
Resumen de: EP4579870A1
A battery pack includes a battery pack case, a switch device (10), and a plurality of battery cell units. The plurality of battery cell units are arranged in the battery pack case, a positive electrode of each of the battery cell units is configured to be electrically connected to a positive terminal of the power distribution unit, and a negative electrode of each of the battery cell units is configured to be electrically connected to a negative terminal of the power distribution unit. In addition, the plurality of battery cell units are sequentially arranged in a series circuit of the battery pack, and two ends of the series circuit are respectively connected to the positive terminal and the negative terminal of the power distribution unit. The switch device (10) is arranged in the series circuit for connecting or disconnecting the series circuit.
Resumen de: EP4579830A1
The present invention relates to a method for manufacturing a secondary battery, which includes a process of preparing a pouch case provided with an accommodation part, in which an electrode assembly is accommodated, and a collection part which communicates with the accommodation part and in which a gas generated during a charging/discharging process for activation is collected, a process of forming an opening in the collection part to discharge the gas collected in the collection part, a process of pressing at least a portion of edges of the pouch case to the outside of the pouch case, and a process of forming a main sealing part for separating and sealing the accommodation part from the collection part between the accommodation part and the collection part after pressing the pouch case or in the state of pressing the pouch case.
Resumen de: EP4579779A1
A positive electrode for a nonaqueous electrolyte energy storage device according to one aspect of the present invention includes a positive electrode substrate containing metallic aluminum, and a positive active material layer stacked on the positive electrode substrate. An elongation at break of the positive electrode substrate is 3.8% or less. The average thickness of the positive active material layer is 35 µm or less. A 180° peel strength between the positive active material layer and the positive electrode substrate is 0.6 N/mm or more.
Resumen de: EP4579818A1
A battery adhesive, a preparation method therefor, and a lithium-ion battery. The battery adhesive comprises the following components in parts by weight: 70-90 parts of a first component and 10-30 parts of a second component; wherein the preparation raw materials of the first component comprise isocyanate, a first monomer, and a second monomer; the first monomer is selected from an aromatic dihydric phenol and/or an aromatic diamine; the second monomer is a reactive long carbon chain polymer; and the second component is an acrylonitrile copolymer. The battery adhesive has a relatively low swelling rate and relatively strong bonding capabilities in an electrolyte, resulting in better electrical performance in a prepared lithium ion battery.
Resumen de: EP4579929A1
This application relates to a battery cell, a battery, and an electric device. The battery cell includes an end cover assembly (21), a tab bracket (22), a fixing member (23), a housing (24), and an electrode assembly (25). The housing (24) has an opening. The end cover assembly (21) closes the opening of the housing (24). The electrode assembly (25) is provided in the housing (24) and provided with a tab (251). The tab bracket (22) is provided on a side of the end cover assembly (21) facing the electrode assembly (25), where the tab (251) is bent around the tab bracket (22). The fixing member (23) is configured to fix the tab bracket (22) to the end cover assembly (21).
Nº publicación: EP4579917A1 02/07/2025
Solicitante:
LG ENERGY SOLUTION LTD [KR]
LG Energy Solution, Ltd
Resumen de: EP4579917A1
The present disclosure includes a battery pack and a device including the same. The battery pack according to one embodiment of the present disclosure comprises at least one or more battery modules that includes a battery cell stack in which a plurality of battery cells are stacked and a module frame that houses the battery cell stack; a first pack frame on which the battery module is mounted; a second pack frame located while covering the battery module; and a venting part provided on one surface of the first pack frame, wherein the venting part communicates with a venting path that is formed by a plurality of partition members located on the first pack frame.
BOPI
Sede Electrónica
