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586
resultados
Última actualización
25/08/2026 [07:49:00]
Resultados 525 a 550 de 586
Resumen de: EP4794059A1
Disclosed are a heating sheet of a battery cell for a thermal propagation evaluation and a thermal propagation evaluation apparatus including the same. A thermal propagation evaluation apparatus (100) according to embodiments includes a power source (130), a housing (110) including a cell occupancy space, in which a plurality of battery cells (C1-C5) including a target battery cell are disposed in parallel, and a heating sheet connected to the power source and configured to heat the target battery cell (120) in the housing, wherein the heating sheet includes a cover in a sheet shape having an area corresponding to one surface of the battery cell and a predetermined thickness and a heating member including a heating coil pattern disposed in one region inside the cover and electrically connected to the external power source, and an area of a region in which the heating coil pattern is disposed may range from 5 to 20% of an area of the cover.
Resumen de: EP4792971A1
0001 The present invention relates to a lead-tab laser welding method for joining a lead portion and a tab portion, and the lead-tab laser welding method may comprise a seating step of disposing the lead portion and the tab portion of a secondary battery so as to overlap each other, and a laser welding step in which a welding unit forms a plurality of beads in an overlap region of the lead portion and the tab portion, wherein in the laser welding step, with respect to first, second, and third positions sequentially located along a first direction in the overlap region of the lead portion and the tab portion, the beads are formed in the order of the first position, the third position, and the second position.
Resumen de: EP4794012A1
A cathode active material for a lithium secondary battery, a method of fabricating the same, and a lithium secondary battery including the same are provided. The cathode active material for a lithium secondary battery includes a lithium-transition metal oxide particle, and a coating layer formed on a surface of the lithium-transition metal oxide particle and including Li3PO4 and an oxide represented by LiwTix(PO4)3-(Al2O3)y (0≤w, x≥4/3, y>0, 0
Resumen de: EP4794056A1
0001 A rechargeable battery (200) includes an electrode assembly (150), and a cap plate (120) defining a terminal hole, a pair of terminals (130, 140) connected with the electrode assembly (150), one of the terminals (130, 140) including a rivet terminal (50) in the terminal hole with a seal gasket (40) between the rivet terminal (50) and the cap plate (120), a terminal plate (60) coupled to the rivet terminal (50), surrounding a part of the rivet terminal (50) at an exterior of the cap plate (120), and having an air layer (80) therein, and an insulator (70) between the cap plate (120) and the terminal plate (60), and overlapping the air layer (80) in a thickness direction of the cap plate (120).
Resumen de: EP4794008A1
0001 A solid-state battery includes a cathode layer, a solid electrolyte layer, and an anode layer. At least one of the cathode layer and the anode layer includes at least one of a first sulfide solid electrolyte containing a Li element, a P element, a S element, and carbonate ions and a composite sulfide solid electrolyte of a second sulfide solid electrolyte containing a Li element, a P element, and a S element and a carbonate.
Resumen de: EP4794004A1
0001 A positive electrode for a rechargeable lithium battery includes a positive electrode current collector and a positive electrode active material layer on the positive electrode current collector. The positive electrode is a rectangle shape having a horizontal length that is longer than its vertical length and having upper and lower sides that are equal length. The positive electrode active material layer includes two trapezoidal patterns formed in its surface. The two trapezoidal patterns have short sides that are adjacent to each other, and long sides of the two trapezoidal patterns are adjacent to the upper and lower sides of the positive electrode active material layer.
Resumen de: EP4793999A1
A method and apparatus for manufacturing an electrode assembly for secondary batteries. The method includes: a notching step comprising notching at least one side of each electrode plate of a plurality of electrode plates to form at least one substrate tab on each electrode plate of the plurality of electrode plates; an inspection step comprising primarily selecting a defective product from among the electrode plates each having the at least one substrate tab, a marking step comprising removing a portion of the at least one substrate tab of the electrode plate of the plurality of electrode plates that has been primarily selected as the defective product, and a final inspection step comprising detecting the electrode plate from which the portion of the at least one substrate tab has been removed to secondarily select the defective product.
Resumen de: EP4793996A1
0001 An electrode assembly, including a plurality of first electrode plates, a plurality of second electrode plates spaced apart from the plurality of first electrode plates, separators between the plurality of first electrode plates and the plurality of second electrode plates, and first electrode tabs connected to the plurality of first electrode plates, wherein the first electrode tabs include a plurality of first inner electrode tabs connected to some of the plurality of first electrode plates and a plurality of first outer electrode tabs connected to others of the plurality of first electrode plates, the plurality of first inner electrode tabs and the plurality of first outer electrode tabs being spaced apart from the plurality of first electrode plates.
Resumen de: EP4794034A1
0001 An electrode assembly (100) includes first and second electrodes (110, 120), and a separator (130), the first electrode (110) including a first substrate (S1) including a first active material layer (AM1) and a first non-coated part (NC1), a second substrate (S2) including a first active material layer (AM1) and a second non-coated part (NC2), a first central substrate (CS1) between the other surface of the first substrate (S1) and the other surface of the second substrate (S2), and a first substrate tab (ST1) extending from one end of the first central substrate (CS1), wherein the second electrode (120) includes a third substrate (S3) including a second active material layer (AM2) and a third non-coated part (NC3), a fourth substrate (S4) including a second active material layer (AM2) and a fourth non-coated part (NC4), a second central substrate (CS2) between a portion of the other surface of the third substrate (S3) and the fourth substrate (S4), and a second substrate tab (ST2) extending from one end of the second central substrate (CS2).
Resumen de: EP4794011A1
Provided are a positive electrode for a rechargeable lithium battery, and a rechargeable lithium battery including the positive electrode. The positive electrode for a rechargeable lithium battery has a structure in which a positive electrode current collector, a functional layer, and a positive electrode active material layer are stacked. The functional layer includes a lithium iron phosphate-based compound and a binder.
Resumen de: EP4794043A1
This application discloses an electrochemical apparatus and an electric device, and the electrochemical apparatus includes a housing, an electrode assembly, a first adhesive member, and a second adhesive member. A first sidewall of the housing includes an internal first surface and an external second surface opposite to each other along a first direction. The electrode assembly is disposed within the housing, and the electrode assembly includes a first side surface. The first adhesive member includes a first side portion and a second side portion opposite each other, where the first side portion includes a first adhesive region bonded to the first surface, and the second side portion includes a second adhesive region, a first non-adhesive region, and a third adhesive region sequentially arranged along a second direction, and the second adhesive region and the third adhesive region are bonded to the first side surface. Along the first direction, a projection of the first non-adhesive region overlaps with a projection of the first adhesive region. The second surface is bonded to an external structure through the second adhesive member. This application is conducive to suppressing impact on corners of the housing, and facilitates reducing the risk of damage to electrode plates of the electrode assembly.
Resumen de: EP4794053A1
0001 An immersion-type energy storage device includes, a housing having an accommodation space therein, one or more battery cells accommodated in the accommodation space of the housing, insulating oil that fills the accommodation space to immerse the battery cells and cool the battery cells, a temperature sensor array including a plurality of temperature sensors installed at different locations that are vertically spaced apart in the accommodation space to detect temperature, and a battery management apparatus configured to determine whether a defect has occurred in the insulating oil based on whether a pattern of a temperature signal detected by the plurality of temperature sensors has changed over time.
Resumen de: EP4794042A2
0001 The present application discloses a secondary battery (100) and an electronic device. A first current collector (211) is provided with a first foil-free zone (211a). A first tab (30) includes a first portion (31) and a second portion (32) that are connected to each other. The first portion (31) is disposed on the first foil-free zone (211a). The second portion (32) extends out of a first electrode sheet (21). A first adhesive layer (50) is bonded between the first foil-free zone (211a) and the first portion (31). The first tab (30) includes a first surface (30a) and a second surface (30b) that are oppositely arranged. The first surface (30a) of the first portion (31) is provided with a plurality of first protrusions (30c). The first adhesive layer (50) is partially embedded between two adjacent first protrusions (30c). The second surface (30b) of the first portion (31) is provided with a plurality of second protrusions (30d). Along a first direction (Z), projections of at least one of the second protrusions (30d) at least partially overlap with projections of the first protrusions (30c), and/or projections of at least one of the second protrusions (30d) are located between projections of two adjacent first protrusions (30c). The connection process between the first tab (30) and the first current collector (211) can be simplified, energy density can be increased, and the connection strength between the first tab (30) and the first current collector (211) can be improve
Resumen de: EP4794001A1
0001 The present disclosure relates to a cathode for a lithium secondary battery including a cathode current collector; and a cathode composite layer formed on the cathode current collector, wherein the cathode composite layer includes a first cathode composite layer on a side of the cathode current collector, and a second cathode composite layer on a surface side of the cathode composite layer, wherein the first cathode composite layer includes a first cathode active material of lithium transition metal composite oxide particles in forms of secondary particles in which primary particles are aggregated, and a binder, wherein the second cathode composite layer includes a second cathode active material of lithium transition metal composite oxide particles in forms of single particles, and a binder.
Resumen de: EP4793998A1
Disclosed are a positive electrode for a rechargeable lithium battery, and a rechargeable lithium battery including the positive electrode. The positive electrode for a rechargeable lithium battery includes a substrate, and a positive electrode active material layer on the substrate. The positive electrode active material layer includes MXene, a solid electrolyte, and a positive electrode active material. A distribution of the solid electrolyte increases from the lower portion to the upper portion of the positive electrode active material layer.
Resumen de: EP4794099A1
An electrode assembly according to some embodiments may include a first electrode, a second electrode, and a separator between the first electrode and the second electrode. The separator may include a protrusion protruding from the first electrode and the second electrode, and a protective layer may be disposed on the protrusion.
Resumen de: EP4794066A1
0001 A secondary battery includes a case, an electrode assembly inside the case, a cap plate coupled to the case, the cap plate sealing the case, a tab member extending from the electrode assembly in a first direction, a terminal protruding outward from the cap plate, the terminal facing the tab member, a support plate in the tab member in a second direction intersecting the first direction, and a connecting member between the tab member and the terminal, the connecting member connecting the tab member and the terminal.
Resumen de: EP4794007A1
0001 An electrode sheet, an electrode assembly, a battery cell and a preparation method therefor, a battery, and an electric device, relating to the technical field of batteries. A protective layer is provided on at least the surface of an end portion of the electrode sheet, and the protective layer comprises silicon oxide; and on the basis of the total mass of all elements of a first position of the electrode sheet, the mass content A of an Si element satisfies: A is less than 0.01 wt%, and the first position is a position 5 mm distant from the surface of the end portion.
Resumen de: EP4794063A1
0001 The present disclosure refers to a battery pack, including a battery pack housing; a battery cell stack including a plurality of rechargeable battery cells, wherein the battery cell stack is accommodated within the battery pack housing; a liquid release system positioned above the rechargeable battery cells, wherein the liquid release system is configured to release a liquid toward the rechargeable battery cells when a release condition is detected; and a retention structure being configured for retaining the liquid released by the liquid release system, wherein the retention structure is in direct contact with an outer surface of the rechargeable battery cells.
Resumen de: EP4794098A1
0001 Battery pack (1) comprising a housing (2) defining a space (S) for housing at least a battery module (3), the battery module (3) comprising a support system (4) defining a space (S') for housing a plurality of battery cells (10) and a venting system (4) defining a venting channel (V) fluidly connected to the space (S'), the housing (2) comprising venting means (23) configured to allow selectively communication between said space (S) and the environment, the battery pack (1) comprising a labyrinthic system (30) fluidly connecting the venting channel (V) to venting means (23), the labyrinthic system (30) providing an obliged path for a flow (F) for gas/flames igniting from any among the battery cells (10) towards the venting means (23) of a predetermined length.
Resumen de: EP4794164A1
System zum Versorgen von Akkumulatoren, insbesondere als Energiespeicher einer Werkzeugmaschine, mit elektrischer Energie.Erfindungsgemäß enthält das System wenigstens eine Regel- und Steuereinheit mit wenigstens einer Eingangsschnittstelle zur Aufnahme elektrischer Energie, wenigstens einer Ausgabeschnittstelle zur Abgabe elektrischer Energie, wenigstens einen Gleichrichter, wenigstens eine erste mit der Regel- und Steuereinheit wenigstens elektrisch verbindbaren Anschlusseinrichtung zum Versorgen wenigstens eines ersten und zweiten Akkumulators mit elektrischer Energie sowie eine zweite mit der Regel- und Steuereinheit wenigstens elektrisch verbindbaren Anschlusseinrichtung zum Versorgen wenigstens einer Aufbewahrungseinheit mit elektrischer Energie, wobei jede Aufbewahrungseinheit wenigstens eine Akku-Schnittstelle zum Versorgen wenigstens eines Akkumulators mit elektrischer Energie enthält.Verfahren zum Steuern und Regeln des Systems zum Versorgen von Akkumulatoren mit elektrischer Energie.
Resumen de: EP4793034A1
0001 The present invention relates to a composite material (1), in particular for thermal insulation of a rechargeable battery and/or for preventing damage in case of a thermal runaway of a rechargeable battery, preferably a traction battery of an electric vehicle. The composite material (1) has two textile layers (2,3), wherein one of the layers a nonwoven fabric (2), in particular a veil, and one of the textile layers is a woven fabric (3), and wherein the nonwoven fabric layer (2) is completely penetrated with a ceramic penetration medium (4), whereby the woven fabric layer (3) is partly penetrated with the ceramic penetration medium (4). 0002 According to a further aspect, the present invention relates to a method for producing the composite material.
Resumen de: EP4794068A1
0001 Halbzeug zum Ausbilden eines Gehäuseelements (100) einer Zelleinheit (200), aufweisend: ein Grundelement (12) und ein erstes Seitenelement (14), ein zweites Seitenelement (16), und ein drittes Seitenelement (18), wobei das erste Seitenelement (14) und das zweite Seitenelement (16) am Grundelement (12) an einander gegenüberliegenden Seiten angeordnet sind, und das dritte Seitenelement (18) am zweiten Seitenelement (16) an einer zum Grundelement (12) gegenüberliegenden Seite angeordnet ist, wobei das Grundelement (12), das erste Seitenelement (14), das zweite Seitenelement (16) und das dritte Seitenelement (18) in einer Ebene (23) angeordnet sind und wobei das Grundelement (12), das erste Seitenelement (14), das zweite Seitenelement (16) und das dritte Seitenelement (18) eingerichtet sind, einen umfänglich geschlossenen, fluiddichten Hauptkörper zu bilden, in welchem ein Zellelement (302) der Zelleinheit anordenbar ist.
Nº publicación: EP4794067A1 19/08/2026
Solicitante:
SAMSUNG SDI CO LTD [KR]
SAMSUNG SDI CO., LTD.
Resumen de: EP4794067A1
0001 A rechargeable battery includes an electrode assembly including a positive electrode, a negative electrode, and a separator, a case accommodating the electrode assembly therein, a linear welding portion extending across a first surface among a plurality of surfaces of the case along a first direction, the linear welding portion having two sides, and a protruding extension on at least one of the two sides of the linear welding portion along a second direction crossing the first direction, the protruding extension protruding from the first surface and extending along the first direction.
BOPI
Sede Electrónica
