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SECONDARY BATTERY, BATTERY PACK AND ELECTRONIC DEVICE

Resumen de: EP4683100A1

A secondary battery (100), a battery pack (1002), and an electronic device (1000) is provided. The secondary battery (100) includes a top cover (172), a terminal post (50) disposed on the top cover (172), an electrode assembly (120), and a rivet (10). The electrode assembly (120) includes a cell body (124) and a tab (122) protruding from the cell body (124). A riveting hole (1220) is provided on the tab (122). The rivet (10) is connected to the terminal post (50) and penetrates through the riveting hole (1220) to rivet the terminal post (50) and the tab (122).

BATTERY CELL, LITHIUM ION BATTERY MANUFACTURING METHOD, AND LITHIUM ION BATTERY

Resumen de: EP4683098A1

The present application discloses a battery cell, a lithium ion battery manufacturing method, and a lithium ion battery. The battery cell comprises a body and tab assemblies; each tab assembly comprises a dummy tab group, an outer tab, and a tab adhesive; the dummy tab group comprises at least one dummy tab connected to the body; the outer tab is conductively connected to the dummy tab group; in a projection in the thickness direction of the body, the outer tab and the dummy tab group partially overlap to form an overlapping portion, and the tab adhesive is wrapped around at least part of the overlapping portion; two tab assemblies are provided, and the two tab assemblies are staggered in the width direction of the body. The distance between the tab adhesives and the body is closer, the dummy tabs do not need to be folded, and a top sealing process step is directly performed at the positions of the tab adhesives after the battery cell is placed into a packaging housing, so that the space occupied by the tab assemblies between the body and the top sealing positions can be reduced, improving the energy density of the lithium ion battery, and the production steps of the lithium ion battery can be simplified, improving the production efficiency of the lithium ion battery.

BATTERY MODULE

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.

BATTERY CELLS, SEMI-FINISHED STACKED BATTERY CELLS STRUCTURE AND THE POSITIONING METHOD THEREOF

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).

ELECTRODE ASSEMBLY AND METHOD FOR MANUFACTURING THE SAME

Resumen de: EP4683003A1

An electrode assembly includes positive and negative electrode plates, each electrode plate including a respective positive or negative electrode mixture portion on which a respective positive or negative electrode active material is applied to an electrode substrate and a first uncoated portion on which an electrode active material is not applied to the respective positive or negative electrode substrate, and a separator between each of the positive electrode plates and each of the negative electrode plates, the positive and negative electrode mixtures each have two portions, separated by uncoated sections, the lengths of the bent uncoated portions match the lengths of their respective electrode substrates, and bent uncoated portions match the lengths of their respective electrode substrates.

ELECTRODE PLATE, STACKED-TYPE CELL, AND POUCH BATTERY

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°.

MODULE FOR AN ELECTRIC VEHICLE

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.

BATTERY PACK

Resumen de: EP4683067A2

A battery pack includes a plurality of battery modules each including a plurality of battery cells; and a pack housing having a plurality of accommodation spaces in which the plurality of battery modules are accommodated and at least one flow passage,wherein at least one of the plurality of battery modules includes an upper cover covering an upper portion of the plurality of battery cells; andat least one discharge port configured to allow gas generated from the plurality of battery cells to be discharged; andwherein the upper cover is configured to cover a gap between the at least one discharge port and the at least one flow passage of the pack housing.

STERILIZING APPARATUS

Resumen de: EP4682463A2

A sterilizing apparatus is disclosed. A sterilizing apparatus according to one embodiment comprises: a cover main body unit having an accommodation space formed therein so as to accommodate a device to be sterilized, wherein the accommodation space is open toward a bottom surface on which the device to be sterilized is disposed; an ultraviolet light emitting diode provided on a surface facing the bottom surface of the cover main body unit, and turned on so as to emit ultraviolet rays toward the accommodation space; a power supply unit for supplying power to the ultraviolet light emitting diode so as to turn on the ultraviolet light emitting diode; and a control unit for controlling an operation of the power supply unit.

ELECTROCHEMICAL APPARATUS AND ELECTRONIC APPARATUS

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. R₁ and R₂ are each independently selected from hydrogen atom, fluorine atom, substituted or unsubstituted C₁-C₅ alkyl group, substituted or unsubstituted C₆-C₁₀ aryl group, and substituted or unsubstituted C₂-C₆ carboxylate group, and when substituted, the substituents on the carboxylate group, the alkyl group, and the aryl group are fluorine atoms.

ELECTROLYTE AND BATTERY INCLUDING THE SAME

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.

POSITIVE ELECTRODE ACTIVE MATERIAL, PREPARATION METHOD THEREFOR, AND BATTERY

Resumen de: EP4682981A1

Provided are a cathode active material and a preparation method therefor, and a battery. The cathode active material includes: a core including lithium metal phosphate; a first coating layer covering at least part of a surface of the core; and a second coating layer covering at least part of a surface of the first coating layer. An XRD intensity at a 2θ diffraction angle in a range of 35.5° to 35.7° of the cathode active material is S1, an XRD peak intensity at a 2θ diffraction angle in a range of 24.1° to 25.4° of the cathode active material is S2, and S2/S1 is (0.005 to 0.05): 1. An XRD peak intensity at a 2θ diffraction angle in a range of 28.8° to 29.2° of the cathode active material is S3, and S3/S1 is (0.005 to 0.05): 1.

BATTERY MODULE, AND BATTERY PACK AND VEHICLE INCLUDING SAME

Resumen de: EP4683087A1

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 module case in which the battery cell stack is accommodated; and a flame suppression pad disposed between the plurality of battery cells within the module case, wherein a cut portion is formed at one end of the flame suppression pad.

SAFETY COATING AND PREPARATION METHOD THEREFOR, AND COMPOSITE CURRENT COLLECTOR

Resumen de: EP4683001A1

A safety coating, a preparation method thereof and a composite current collector are provided. The safety coating includes, by weight parts, 30 to 50 parts of a phosphate material, 1 to 5 parts of a conductive agent, 10 to 30 parts of a binder, and 10 to 20 parts of a solvent. The phosphate material has a chemical formula of LiFe1-x-yMnxMyPO4, in which 0

METHOD AND SYSTEM FOR PREDICTING BATTERY THERMAL RUNAWAY, AND STORAGE MEDIUM

Resumen de: EP4683031A2

A method and a system for predicting battery thermal runaway, and a storage medium are provided. The method includes: obtaining voltage data of a battery to be tested under a preset condition; obtaining internal resistance data of the battery to be tested according to the preset condition and voltage data; processing the internal resistance data based on a preset activation energy model to obtain activation energy data of the battery to be tested; and determining a thermal runaway probability of the battery to be tested according to the activation energy data, thereby achieving accurate prediction of thermal runaway of the battery to be tested.

METHOD OF PRODUCING RECYCLED MATERIAL, AND BIPOLAR BATTERY

Resumen de: EP4683040A1

A method of producing a recycled material includes the following (a) to (d). (a) Preparing a bipolar battery that includes an electrolytic solution and that is sealed. (b) Forming a gas outlet hole on the bipolar battery. (c) Vaporizing at least some of the electrolytic solution by heating the bipolar battery by induction heating. (d) Retrieving the vaporized electrolytic solution from the gas outlet hole.

INTER-BUS BAR, PACK HOUSING COMPRISING SAME, BATTERY PACK COMPRISING SAME, AND MANUFACTURING METHOD THEREFOR

Resumen de: EP4683105A1

Disclosed are an inter-busbar including a conductive member configured to be electrically connected to a module terminal provided at a battery module, an insulating portion enclosing a remaining area of the conductive member excluding an area configured to be in contact with the module terminal, and a case allowing the insulating portion inserted thereinto, a pack housing including the same, a battery pack including the same, and a method of manufacturing the same.

BATTERY PACK AND VEHICLE INCLUDING THE SAME

Resumen de: EP4681950A2

A battery pack according to an embodiment of the present disclosure includes a pack tray; and at least one battery module provided on the pack tray, and the at least one battery module includes a battery cell assembly mounted on the pack tray and including at least one battery cell; a pair of side plates provided on both side surfaces of the battery cell assembly to support the battery cell assembly and fixed to the pack tray; and a band unit connected to the pair of side plates and configured to at least partially cover an upper side and a lower side of the battery cell assembly.

BATTERY PACK AND VEHICLE COMPRISING SAME

Resumen de: EP4683047A1

A battery pack includes a plurality of battery cells, a pack housing, and a filling portion. The pack housing accommodates the battery cells, and the filling portion is a space between the battery cells within the pack housing. In addition, the filling portion includes a resin layer and a foam layer.The battery pack according to an embodiment includes the filling portion including the resin layer and the foam layer in an empty space within the pack, thereby preventing heat transfer and securing rigidity.

METHOD FOR REGENERATING CATHODE ACTIVE MATERIAL, AND REGENERATED CATHODE ACTIVE MATERIAL PREPARED THEREBY

Resumen de: EP4683041A1

The present invention relates to a method of recycling a cathode active material and a recycled cathode active material prepared using the same. More particularly, the present invention relates to a method of recycling a cathode active material, the method including step (a) of thermally decomposing a binder and a conductive material in a cathode active material layer by heat-treating, at 300 to 650 °C, a waste cathode having the cathode active material layer formed on a current collector to separate the current collector from the cathode active material layer and recover a cathode active material in the cathode active material layer; step (b) of reheating the recovered cathode active material at 350 to 700 °C for 1 to 10 hours; step (c) of adding a lithium precursor to the reheat-treated cathode active material and performing annealing at 500 to 1000 °C; step (d) of washing the annealed cathode active material with a washing solution; and step (e) of surfacecoating the washed cathode active material with a coating agent, and a cathode active material prepared using the same.

ELECTRODE SLURRY COATING APPARATUS AND METHOD

Resumen de: EP4681824A1

The present invention relates to an electrode slurry coating apparatus comprising a lower die applying electrode slurry on a collector, an intermediate die, and an upper die, the electrode slurry coating apparatus comprising: a first discharge part primarily applying the electrode slurry on the collector to form a first coating layer; an intermediate pressing part pressing the first coating layer to expand a width of the first coating layer so as to adjust a thickness of the first coating layer; a second discharge part secondarily applying the electrode slurry on a surface of the first coating layer that is adjusted in thickness to form a second coating layer; and an upper pressing part pressing the first coating layer and the second coating layer, which are stacked, at the same time to expand a width of each of the first coating layer and the second coating layer so as to adjust a thickness of each of the first coating layer and the second coating layer, wherein the first discharge part has a width less than that of the second discharge part.

VEHICLE DEVICE INCLUDING BATTERY PACK

Resumen de: EP4683034A1

A vehicle device according to certain aspects of the present disclosure comprises: a battery pack; and a tank. The battery pack comprises a plurality of battery cells; a pack frame in which the battery cells are directly mounted or in which the battery cells are mounted while being housed in a module frame; and a pack cover that covers the pack frame. The tank comprises a cooling water or fire extinguishing water; a tank discharge port through which cooling water or fire extinguishing water is discharged; and a sealing layer provided on one side surface where the tank discharge port is disposed.

GRADIENT-DOPED HIGH-NICKEL LAYERED OXIDE POSITIVE-ELECTRODE MATERIAL WITH HIGH-ENTROPY SURFACE AND MEDIUM-ENTROPY INTERIOR AND PREPARATION METHOD THEREOF

Resumen de: EP4682113A1

The present invention belongs to the technical field of lithium-ion battery electrode materials, specifically relating to a gradient-doped high-nickel layered oxide positive-electrode material with high-entropy surface and medium-entropy interior and a preparation method thereof. According to the present invention, the preparation method of the gradient-doped high-nickel layered oxide positive-electrode material with high-entropy surface and medium-entropy interior, involves doping the surface of the material with five or more elements to form a surface high-entropy reconstruction layer, while the interior of the material is doped with four elements to form a medium-entropy doping structure. The high-entropy reconstruction layer on the surface utilizes the synergistic effects of multiple elements to form a superlattice structure on the surface, so as to reduce the valence state of surface nickel, thereby stabilizing the interfacial structure and minimizing side reactions with the electrolyte. Through this method, the cycling stability of nickel-rich layered oxide positive-electrode materials can be significantly improved. It is a simple in process, low-cost, easy-to-operate, and high-performance method with promising prospects for industrial production and application.

LITHIUM SECONDARY BATTERY

Resumen de: EP4682982A1

A lithium secondary battery according to the embodiments of the present disclosure includes a cathode which includes lithium-metal oxide particles having a compressive fracture strength of 1,500 MPa or more and having a single particle form; an anode disposed opposite to the cathode and including a lithium metal layer; and a solid electrolyte layer interposed between the cathode and the anode and including a sulfide-based solid electrolyte.

PIPING SYSTEM WITH NUMEROUS EXITS

Nº publicación: EP4682420A1 21/01/2026

Solicitante:

TI AUTOMOTIVE TECH CT GMBH [DE]
TI Automotive Technology Center GmbH

Resumen de: EP4682420A1

Eine Hauptleitung (1) zum Verteilen oder Sammeln eines Mediums und insbesondere eines Temperiermediums weist ein Hauptrohr (2) und wenigstens drei Abgängen (3, 4) auf. Die Abgänge (3, 4) sind mit dem Hauptrohr (2) verbunden, wobei das Hauptrohr (2) eine Achse (A) umfasst und eine axiale Richtung definiert. Wenigstens einer der Abgängen (3, 4) weist einen Leitungsverbinder (5) und ein Rohrstück (6) auf. Ein erstes Ende des Rohrstücks (6) ist mit dem Hauptrohr (2) verbunden. Ein zweites. Ende des Rohrstücks (6) ist mit dem Leitungsverbinder (5) verbunden. Das erste Ende und vorzugsweise das zweite Ende des Rohrstücks (6) ist integral mit dem Hauptrohr (2) verbunden.