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1645
resultados
Última actualización
25/03/2026 [07:44:00]
Resultados 1425 a 1450 de 1645
Resumen de: EP4708417A1
Disclosed is a battery cell pressurizing device, which includes a plurality of mounting tables respectively configured so that at least one battery cell is mounted thereon, the plurality of mounting tables being arranged side by side in one direction; a pressurizing unit configured to pressurize the battery cells mounted on the plurality of mounting tables by pressing the plurality of mounting tables in a direction in which the plurality of mounting tables come into close contact with each other; and a plurality of pressure-sensitive sensors distributed on the plurality of mounting tables and configured to detect pressure applied to the battery cells mounted on each mounting table separately for each battery cell or to detect the pressure separately for different parts of each battery cell.
Resumen de: EP4708383A1
The present invention relates to a method of preparing a positive electrode slurry composition, which includes steps of (S1) mixing a positive electrode active material, a conductive agent, and a binder in a non-aqueous solvent to prepare a mixture having a solid content of greater than 60 wt%; (S2) cooling the mixture to -30°C to 15°C to prepare a positive electrode slurry composition precursor; and (S3) maintaining a temperature of the positive electrode slurry composition precursor to prepare a positive electrode slurry composition having a V<sub>72</sub> of 0% to 50%, wherein V<sub>n</sub> is a viscosity increase rate when the temperature of the positive electrode slurry composition precursor is maintained for n hours, and the viscosity increase rate is represented by Equation 1, and a method of preparing a positive electrode.
Resumen de: EP4708438A1
A monomer for an electrolyte according to embodiments of the present disclosure may include a first monomer represented by Formula 1 and a second monomer represented by Formula 2. A lithium secondary battery according to embodiments of the present disclosure may include a cathode, an anode, and an electrolyte layer, wherein the electrolyte layer may include a polymer derived from a compound represented by Formula 1.
Resumen de: EP4708530A1
The present application provides a battery cell, a battery and an electrical device. The battery cell includes a shell and a pressure relief component; the shell includes a first wall portion; the pressure relief component is arranged on the first wall portion, and includes a first surface and a second surface which are oppositely arranged in the thickness direction of the first wall portion; the pressure relief component is provided with a first groove which is recessed from the first surface toward the second surface, the first groove defines at least one predetermined pressure relief region, and the pressure relief component is configured to be capable of rupturing along at least part of the first groove when the battery cell is subjected to pressure relief; and the width of the first wall portion is W, the sum of the areas of all predetermined pressure relief regions is S, and W and S meet: 10mm≤W≤100mm, 300mm<2>≤S≤1500mm<2>, which is conducive to prolonging the service life of the battery cell and improving the operational reliability of the battery cell.
Resumen de: EP4708523A2
A battery module (100) includes: a plurality of battery cells (110) arranged in parallel in a first direction; a housing (130, 135, 170) accommodating the plurality of battery cells; and a fire-extinguishing pipe (120) in the housing and extending in the first direction. The fire-extinguishing pipe includes a plurality of metal knitting yarns (125) between an inner surface (121) and an outer surface (123) of the fire-extinguishing pipe, and the plurality of metal knitting yarns extend in the first direction and are spaced apart from one another in a circumferential direction of the fire-extinguishing pipe.
Resumen de: EP4708429A2
The present technology relates to a positive electrode for a lithium secondary battery, and the positive electrode includes: a first positive electrode mixture layer contacting a positive electrode current collector; and at least one second positive electrode mixture layer arranged on the first positive electrode mixture layer. Herein, the first positive electrode mixture layer includes a first positive electrode active material and a first binder, and the second positive electrode mixture layer includes a second positive electrode active material and a second binder. Further, an average particle diameter (D<sub>50</sub>) the first positive electrode active material is smaller than an average particle diameter (D<sub>50</sub>) of the second positive electrode active material and is equal to or less than 3µm, and a specific surface area(BET) of the first positive electrode active material is equal to or greater than 3m<sup>2</sup>/g.
Resumen de: EP4708491A2
A battery module includes a buffer pad for preventing a damage to a battery cell, and a battery pack including the battery module. It is possible to prevent a damage to the outermost battery cell at the time of the swelling of battery cells by including a buffer pad, where first and second regions having different physical properties are positioned, in a region contacting the outermost battery cell of the battery cell laminate.
Resumen de: EP4708497A2
Disclosed are a battery pack configured to guide venting gas to be discharged in a desired direction when a thermal event occurs, and an energy storage system including the same.A battery pack according to one aspect of the present disclosure includes a cell assembly, a pack frame accommodating the cell assembly therein, and a venting guidance portion coupled to the pack frame and configured to cause an outlet, through which venting gas emitted from the cell assembly is discharged to the outside of the pack frame, to be formed at a coupling portion with the pack frame, which is at least partially weakened as the internal pressure of the pack frame increases due to the venting gas.
Resumen de: EP4707243A2
The present disclosure relates to a method of manufacturing a positive electrode active material for nonaqueous electrolyte secondary batteries that comprises a lithium transition metal composite oxide containing at least 80 mol% Ni with reference to the total number of moles of metal elements excluding Li, and that has B present on the particle surface of at least this composite oxide. Assuming that a particle having a particle diameter larger than the 70% volume-based particle diameter (D70) is denoted as a first particle and a particle having a particle diameter smaller than the 30% volume-based particle diameter (D30) is denoted as a second particle, the mole fraction of B, with reference to the total number of moles of metal elements excluding Li, in the first particle is larger than the mole fraction of B, with reference to the total number of moles of metal elements excluding Li, in the second particle.
Resumen de: EP4708550A2
The present application provides a conductive structure and a manufacturing method thereof, a cover plate assembly, and a battery cell. The conductive structure includes: a first-metal post including a first end and a second end opposite to each other; and a second-metal layer bonded to a surface of the first-metal post. The second-metal layer wraps the first end and extends toward the second end. In the conductive structure, the second-metal layer bonded to the surface of the first end of the first-metal post is arranged to extend from the surface of the first end of the first-metal post to the second end.
Resumen de: EP4708536A1
A battery module (1000) includes a housing (1200) accommodating a plurality of battery cells (1100) in an internal space. A flow path (1300) extending in a first direction and configured to dispense a fire extinguishing agent (1310) into the internal space of the housing (1200). One or more partition walls (1400) extend in a second direction different from the first direction and divide the internal space of the housing (1200) into two or more sub-internal spaces.
Resumen de: EP4708513A1
According to an embodiment, an electronic device includes a printed circuit board including an electronic component and a battery. The battery includes a metal can case including a plate and a cover formed from a first metal material, and an electrode assembly disposed in the metal can case. The plate includes a first layer formed from a second metal material, and a second layer, formed from at least the first metal material, disposed on the first layer, and facing the electrode assembly. Heat conductivity of the second metal material is greater than heat conductivity of the first metal material, for dissipating heat, generated by the electronic component, transmitted through a heat-conductive member by thermally contacting with the plate.
Resumen de: EP4708532A1
A battery module according to one embodiment of the present disclosure includes: a plurality of battery cells; a module casing that accommodates the plurality of battery cells, and having a first venting hole on one side surface, the first venting hole that discharges venting gas to outside; and a rupture member coupled to the module casing so as to cover the first venting hole from both sides, and that is at least partially ruptured by the venting gas.
Resumen de: EP4707032A1
Example methods to manage a plurality of battery packs of an electric vehicle include initiating a charging process for a primary battery pack and an auxiliary battery pack, determining that an Open Circuit Voltage (OCV) of the primary battery pack matches an OCV of the auxiliary battery pack, and based on determining that the OCV of the primary battery pack matches the OCV of the auxiliary battery, connecting the primary and auxiliary battery packs in parallel and initiating parallel charging of the primary battery pack and the auxiliary battery pack.
Resumen de: EP4708528A1
A battery cell includes an electrode assembly comprising a positive electrode and a negative electrode, a case accommodating the electrode assembly, the case having an open portion in one surface thereof, a cap plate part covering the open portion, the cap plate part being coupled to the case, a vent part on the cap plate part, the vent part having a gas flow path depending on an internal pressure of the case, and an opening/closing part on one surface of the case and facing the vent part, the opening/closing part configured to open and close the gas flow path.
Resumen de: EP4708549A2
Embodiments of this application provide a battery cell (20), a battery (100), and an electric device, pertaining to the field of battery technologies. The battery cell (20) has a current collecting component (24) and two output poles with opposite polarities for outputting electrical energy. The current collecting component (24) includes two current collectors (241), an insulator (242), and a limiting structure (243). The two current collectors (241) are arranged opposite each other along a width direction of the current collecting component (24) and are configured to connect to the two output poles respectively. The insulator (242) is configured to connect the two current collectors (241) and is located at least partially between the two current collectors (241) in the width direction to insulate the two current collectors (241) from each other. The limiting structure (243) is configured to restrict the current collectors (241) from leaving the insulator (242) in the width direction. The two current collectors (241) in the current collecting component are connected by the insulator (242), and the two current collectors (241) are insulated from each other by the insulator (242). The limiting structure (243) restricts the current collecting component (24) from leaving the insulator (242) in the width direction of the current collecting component (24), so that the two current collectors (241) are not easily separated from the insulator, reducing the risk of the two current coll
Resumen de: EP4708481A1
The present disclosure provides a conductive structure (10), a cover plate assembly (100), and a battery cell (1000). The conductive structure (10) includes a first-metal post (1) and a second-metal layer (2). The first-metal post (1) includes a first end (11) and a second end (12) opposite to each other. The first end (11) is formed with a first step portion (11a). The second-metal layer (2) is bonded to a surface of the first-metal post (1). The second-metal layer (2) wraps the first end (11) and extends toward the second end (12). The second-metal layer (2) is formed with a second step portion (26) matching the first step portion (11a). The second step portion (26) is configured to be welded to a current collector (120).
Resumen de: EP4708482A1
The present application provides a pole, a cover plate assembly and a battery cell, related to the field of battery technology. The pole includes a first metal part and a second metal part; where the first metal part has an outer peripheral surface, and the outer peripheral surface is provided with an embedded groove; the second metal part is provided with a connecting groove, one end of the first metal part is embedded into the connecting groove, an embedding block is provided protruding from a groove wall of the connecting groove toward the first metal part, and the embedding block is embedded into the embedded groove; a thickness of the groove wall of the connecting groove is D, and along a radial direction of the pole, a depth dimension of the embedding block embedded into the embedded groove is L1, satisfying: 0 < L1 ≤ 0.5D.
Resumen de: EP4707282A1
A monomer for an electrolyte according to the embodiments of the present disclosure may include a compound represented by Formula 1. The lithium secondary battery according to the embodiments of the present disclosure includes a cathode, an anode, and an electrolyte, and the electrolyte may include a polymer formed by polymerizing the compound represented by Formula 1.
Resumen de: EP4708373A1
The present application provides a cathode material comprising the following raw materials in parts by weight: 10 parts of a porous carbon conductive agent, 7 to 14 parts of an additive, 38 to 44 parts of an active material, and 32 to 40 parts of a solid electrolyte, wherein the active material comprises sulfur powder, and the additive comprises one or both of phosphorus pentasulfide and phosphorus trisulfide. Elemental sulfur reacts with lithium ions during battery discharge to form lithium sulfide, which can react with the additive to in-situ generate a lithium phosphorus sulfur solid electrolyte. The lithium phosphorus sulfur solid electrolyte not only enables most of the active material to participate in the charge-discharge cycle, improving the utilization rate of the active material, but also forms an ionic conductive network, allowing lithium ions to conduct faster. It also enhances the ionic conductivity of the cathode material, achieving high specific capacity and cycling stability in all-solid-state lithium-sulfur batteries under high areal loading conditions.
Resumen de: EP4708624A1
A power system includes a lever bar configured to move between a first position and a second position. In the first position, the lever bar is configured to enable the power system to mate with a first type of replacement battery cartridge, mate with a first type of external battery connector, block a second type of replacement battery cartridge, and block a second type of external battery connector. In the second position, the lever bar is configured to enable the power system to mate with the second type of replacement battery cartridge, mate with the second type of external battery connector, block the first type of replacement battery cartridge, and block the first type of external battery connector.
Resumen de: EP4707795A2
The present invention relates to a secondary battery. The secondary battery according to the present invention comprises an electrode assembly wherein electrodes and separators are alternatingly stacked, and a battery case in which the electrode assembly is accommodated, where the battery case comprises a first gas pocket on which a first collection space for collecting gases in the battery case is formed, and on which is provided a first exhaust port from which gases in the first collection space are exhausted, and a second gas pocket on which a second collection space for collecting gases exhausted from the first exhaust port is formed, and on which is provided a second exhaust port for outward exhaust of gas in the second collection space.
Resumen de: EP4708475A2
A pole for a battery cell, a corresponding cover plate assembly, and a battery cell, relating to the field of battery technology. The pole includes a first metal part and a second metal part; where the first metal part has a first concave part, and a first convex part is disposed on an inner wall of the first concave part; the second metal part includes a main body and a second convex part connected to each other, where a second concave part is disposed on an outer peripheral surface of the second convex part, the second convex part is embedded into the first concave part, and the first convex part is embedded into the second concave part; a side of the second concave part away from a bottom wall of the first concave part is represented as a first surface, and a gap is only disposed between the first convex part and the first surface.
Resumen de: EP4708476A2
The present disclosure provides an electrode output component (001) for a battery cell, a cover plate assembly (002), and a battery cell, relating to the field of batteries technologies. The electrode output component (001) includes a pole (011) and a terminal (012). An outer peripheral surface of the pole (011) is provided with an abutting portion (111). The terminal (012) includes a first through hole (121). The first through hole (121) is sleeved on one end of the pole (011) and abuts against the abutting portion (111) along an axial direction of the pole (011). A contact portion (013) between the pole (011) and the terminal (012) forms a structure engaged with each other.
Nº publicación: EP4707050A1 11/03/2026
Solicitante:
HUAWEI DIGITAL POWER TECH CO LTD [CN]
Huawei Digital Power Technologies Co., Ltd
Resumen de: EP4707050A1
Embodiments of this application provide an electric vehicle.The electric vehicle (12) includes a power battery (411), a heat exchanger (420), a coolant storage tank (430), an in-vehicle pipeline (M), a coolant injection channel (441), and a coolant discharge channel (442). The power battery (411) includes a liquid cooling runner (412). The in-vehicle pipeline (M) is configured to connect one of an in-vehicle cooling loop, an off-vehicle cooling loop, and an off-vehicle coolant supplement channel. The in-vehicle cooling loop is configured to: deliver coolant flowing out of a liquid cooling runner (412) to the heat exchanger (420), and deliver coolant flowing out of the heat exchanger (420) to the liquid cooling runner (412). The off-vehicle cooling loop is configured to: deliver, through the coolant injection channel (441), coolant provided by an off-vehicle liquid cooling device (520) to the liquid cooling runner (412), and deliver, through the coolant discharge channel (442), coolant flowing out of the liquid cooling runner (412) to the off-vehicle liquid cooling device (520), so that the off-vehicle liquid cooling device (520) dissipates heat for the power battery (411). The off-vehicle coolant supplement channel is configured to deliver, through the coolant injection channel (441), coolant provided by the off-vehicle liquid cooling device (520) to the coolant storage tank (430), to implement coolant supplement for the coolant storage tank (430) by the off-vehicle liquid co
BOPI
Sede Electrónica
