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Traktionsbatterie eines Kraftfahrzeugs und Kraftfahrzeug

NºPublicación:  DE102025114199A1 15/10/2026
Solicitante: 
PORSCHE AG [DE]
Dr. Ing. h.c. F. Porsche Aktiengesellschaft
DE_102025114199_PA

Resumen de: DE102025114199A1

Traktionsbatterie (10) eines Kraftfahrzeugs, mit einem eine Kühlplatte (14) aufweisenden Batteriegehäuse oder Batteriemodulgehäuse (13), wobei die Kühlplatte (14) eine Bodenwand des Batteriegehäuses oder Batteriemodulgehäuses (13) bildet, die einem Unterboden oder Unterfahrschutz (11) des Kraftfahrzeugs zugewandt ist, und mit mehreren im Batteriegehäuse oder Batteriemodulgehäuse (13) aufgenommen Batteriezellen (12). Entgasungsöffnungen (17) der Batteriezellen (12), über welche bei einem thermischen Durchgehen einer Batteriezelle (12) eine Entgasung der jeweiligen Batteriezelle (12) erfolgt, sind der Kühlplatte (14) zugewandt, wobei die Kühlplatte (14) in solchen Abschnitten (14b), die zu den Entgasungsöffnungen (17) der Batteriezellen (12) benachbart sind, einwandig und in anderen Abschnitten (14a) doppelwandig ausgebildet ist, und wobei die Kühlplatte (14) als geschlossene Kühlplatte ausgebildet ist und in den einwandigen Abschnitten (14b), die zu den Entgasungsöffnungen (17) der Batteriezellen (12) benachbart sind, Einkerbungen (18) aufweist, die eine jeweilige Sollbruchstelle bilden, entlang derer die Kühlplatte (14) beim thermischen Durchgehen der jeweiligen Batteriezelle (12) öffnet.

SEKUNDÄRBATTERIE UND VERFAHREN ZU IHRER HERSTELLUNG

NºPublicación:  DE102026111610A1 15/10/2026
Solicitante: 
TOYOTA MOTOR CO LTD [JP]
TOYOTA JIDOSHA KABUSHIKI KAISHA
DE_102026111610_PA

Resumen de: DE102026111610A1

Eine Sekundärbatterie (1) kann eine positive Elektrode (112) und eine negative Elektrode (114) umfassen, die einander gegenüberliegen, wobei ein Separator (116) dazwischen angeordnet ist. Die negative Elektrode kann einen Stromabnehmer (122), eine auf dem Stromabnehmer befindliche Verbundschicht (10), die Graphitpartikel (11) enthält, und eine Klebemittelschicht (13) zwischen der Verbundschicht und dem Separator umfassen. Die Verbundschicht kann eine mit der Klebemittelschicht in Kontakt stehende Oberflächenschicht (10A) und eine Hauptschicht (10B) zwischen der Oberflächenschicht und dem Stromabnehmer umfassen. In einem XRD-Profil der Hauptschicht kann ein Orientierungsgrad, definiert als das Verhältnis der Intensität einer (110)-Ebene eines Graphitkristalls zur Intensität einer (002)-Ebene, 0,03 oder größer sein. Graphitpartikel in der Oberflächenschicht können Peaks bei zwei Partikelgrößen aufweisen, und Partikel in der Hauptschicht können nur einen Peak bei der ersten Partikelgröße aufweisen.

SYSTEM UND VERFAHREN ZUM AUSFÜHREN AKTIVER KAPAZITÄTSAKTUALISIERUNGEN AN MEHREREN VERBUNDENEN BATTERIESYSTEMEN

NºPublicación:  DE102025120351A1 15/10/2026
Solicitante: 
GM GLOBAL TECH OPERATIONS LLC [US]
GM Global Technology Operations LLC
DE_102025120351_PA

Resumen de: DE102025120351A1

Ein Energiemanagementsystem führt ein Verfahren zum Durchführen einer aktiven Kapazitätsaktualisierung einer ersten Batterie durch. Ein erster Endpunkt des Systems ist mit der ersten Batterie verbunden und ein zweiter Endpunkt ist mit einer zweiten Batterie verbunden. Eine Steuereinrichtung bestimmt eine Dauer einer Zeit des Nichtgebrauchs für die erste Batterie, bestimmt, dass sich die erste Batterie in einem geladenen Zustand befindet, führt eine Durchführbarkeitsprüfung der ersten Batterie und der zweiten Batterie für die aktive Aktualisierung aus, entlädt die erste Batterie an die zweite Batterie, erlangt eine erste Messung eines elektrischen Parameters während des Entladens, lädt die erste Batterie aus der zweiten Batterie, erlangt eine zweite Messung des elektrischen Parameters während des Ladens und bestimmt die Kapazität der ersten Batterie aus der ersten Messung und der zweiten Messung.

Verfahren und Vorrichtung zur Branderkennung in einer Batterie

NºPublicación:  DE102025114728A1 15/10/2026
Solicitante: 
AUDI AG [DE]
AUDI Aktiengesellschaft
DE_102025114728_PA

Resumen de: DE102025114728A1

Verfahren zur Branderkennung in einer Batterie (2), umfassend die Schritte: Bereitstellen eines Batteriegehäuses (4) mit einem Ventil (5), insbesondere einem Venting-Ventil,Detektieren eines Druckanstiegs im Batteriegehäuse (4) infolge eines Zellbrands mittels eines Druckschalters (6),Erzeugen eines Branderkennungssignals mittels einer Steuereinheit (7) basierend auf einem Signal des Druckschalters (6).

Elektrogerät, System, Akkumodul und Verfahren

NºPublicación:  DE102025114688A1 15/10/2026
Solicitante: 
FESTOOL GMBH [DE]
Festool GmbH
DE_102025114688_PA

Resumen de: DE102025114688A1

Die Erfindung betrifft ein Elektrogerät (1), das als Elektrowerkzeug (36) oder als Sauger (37) ausgeführt ist, umfassend einen ersten Elektrogerät-Körper (2) sowie wenigstens zwei Akkumodule (7), die zusammen mit dem Elektrogerät-Körper (2) in eine Kaskadenkonfiguration versetzbar sind, in der ein erstes Akkumodul (7A) an dem Elektrogerät-Körper (2) angebracht ist und ein zweites Akkumodul (7B) an dem ersten Akkumodul (7A) angebracht ist, um den Elektrogerät-Körper (2) unter Mitwirkung des ersten Akkumoduls (7A) und des zweiten Akkumoduls (7B) mit einer elektrischen Spannung zu versorgen, wobei der Elektrogerät-Körper (2) und die wenigstens zwei Akkumodule (7) ausgebildet sind, eine Kommunikation untereinander durchzuführen und jedes Akkumodul (7) ausgebildet ist, auf Basis der Kommunikation einen jeweiligen Akkumodul-Zustand gemäß einer Position des jeweiligen Akkumoduls (7) innerhalb der Kaskadenkonfiguration und/oder gemäß einem für den Elektrogerät-Körper (2) vorgegebenen Spannungswert einzunehmen.

Kühlsystem, Fahrzeug und Verfahren

NºPublicación:  DE102025114417A1 15/10/2026
Solicitante: 
AUDI AG [DE]
AUDI Aktiengesellschaft
DE_102025114417_PA

Resumen de: DE102025114417A1

Die Erfindung betrifft ein Kühlsystem (100) für eine Traktionsbatterie (101) eines Fahrzeuges, zumindest umfassend einen Kühlkreislauf (102) mit mehreren Leitungsabschnitten, ein in dem Kühlkreislauf (102) befindliches Kühlmedium, die zu kühlende Traktionsbatterie (101), welche in den Kühlkreislauf (102) integriert ist, wenigstens einen Sensor (103) zum Messen der elektrischen Leitfähigkeit und/oder des elektrischen Widerstands des Kühlmediums, und ein Bypass (104) zu wenigstens einem Leitungsabschnitt, dadurch gekennzeichnet, dass der wenigstens eine Sensor (103) in dem Bypass (104) angeordnet ist. Die Erfindung betrifft auch ein Fahrzeug sowie ein Verfahren zum Feststellen einer Verunreinigung des Kühlmediums in einem Kühlsystem (100).

ELECTRODE SHEET, ELECTRODE SHEET COATING APPARATUS AND COATING METHOD THEREFOR, AND BATTERY

NºPublicación:  AU2025434367A1 15/10/2026
Solicitante: 
EVE POWER CO LTD
EVE POWER CO., LTD.
AU_2025434367_A1

Resumen de: AU2025434367A1

The present application provides an electrode sheet, an electrode sheet coating apparatus and a coating method therefor, and a battery. The electrode sheet comprises a current collector, a first electrode coating layer, and a second electrode coating layer, wherein the first electrode coating layer is at least arranged on a first surface of one side of the current collector, the second electrode coating layer is stacked on a first surface of the side of the first electrode coating layer facing away from the current collector, a second peripheral side edge of the second electrode coating layer exceeds a first peripheral side edge of the first electrode coating layer to form a filling portion, and the thickness of the filling portion is greater than the thickness of the first electrode coating layer.

BATTERY CELL, BATTERY, AND ELECTRICAL APPARATUS

NºPublicación:  AU2024446728A1 15/10/2026
Solicitante: 
CONTEMPORARY AMPEREX TECHNOLOGY CO LIMITED
CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
AU_2024446728_PA

Resumen de: AU2024446728A1

A battery cell (102), a battery (100), and an electrical apparatus, relating to the technical field of batteries. The battery cell (102) comprises a casing component (1), a pole component (2), and an electrode component (3); the casing component (1) comprises a first casing wall (111), and a mounting hole (112) is formed in the first casing wall (111); the electrode component (3) is accommodated in the casing component (1); the pole component (2) and the first casing wall (111) are located on the same side of the electrode component (3) and are mounted at the mounting hole (112); the pole component (2) comprises a pole body (21), an adapter structure (22), and an insulating sealing structure (23); the pole body (21) is connected to the electrode component (3); the adapter structure (22) surrounds the pole body (21) and is connected to the first casing wall (111); the insulating sealing structure (23) is insulated and is in sealing fit between the adapter structure (22) and the pole body (21).

BATTERY CELL, BATTERY, AND ELECTRICAL APPARATUS

NºPublicación:  AU2024446208A1 15/10/2026
Solicitante: 
CONTEMPORARY AMPEREX TECHNOLOGY CO LIMITED
CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
AU_2024446208_PA

Resumen de: AU2024446208A1

A battery cell (102), a battery (100), and an electrical apparatus, belonging to the technical field of batteries. The battery cell (102) comprises: a casing component (1), a pole component (2), and an electrode component (3), the casing component (1) having an accommodating cavity (13) and comprising a first casing wall (111) which participates in enclosingly forming the accommodating cavity (13). The electrode component (3) is accommodated in the accommodating cavity (13). The pole component (2) and the first casing wall (111) are located on the same side of the electrode component (3) and are mounted on the first casing wall (111). The electrode component (3) is connected to the pole component (2) by means of a conductive portion (4), an accommodating recess (5) in communication with the accommodating cavity (13) is formed at the pole component (2), the accommodating recess (5) is open in the direction facing the electrode component (3) and is at least partially surrounded by the pole component (2), and at least part of the conductive portion (4) is accommodated in the accommodating recess (5).

ELECTROLYTE COMPOSITION FOR EFFICIENT ELECTRODEPOSITION OF LITHIUM METAL FILMS

NºPublicación:  AU2025268483A1 15/10/2026
Solicitante: 
OAK FANG LITHIUM LLC
OAK FANG LITHIUM LLC
AU_2025268483_PA

Resumen de: AU2025268483A1

A system and a method for electrodeposition of lithium metal are provided. The system includes a reservoir of electrolyte composition comprising a solvent, a hydrolytically stable lithium salt, a hydrolytically unstable salt, and water, a vessel containing additives, and a power source for electrodepositing a lithium metal. The method includes providing a counter-electrode, providing the electrolyte composition between a substrate and the counter-electrode, and applying a current between the substrate and the counter-electrode to electrodeposit a lithium metal film on the substrate. In various embodiments, the hydrolytically unstable salt, the water, and a second solvent are pre-mixed prior to combining with the hydrolytically stable lithium salt and the solvent to form the electrolyte composition. The additives may include a second hydrolytically unstable salt, a second solvent, and additional amount of water with a sufficient concentration to partially hydrolyze the second hydrolytically unstable salt.

LIME ASSISTED LEACHING OF CALCINED METAL CONCENTRATE FOR THE RECOVERY OF LITHIUM

NºPublicación:  AU2025252488A1 15/10/2026
Solicitante: 
REDWOOD MATERIALS INC
REDWOOD MATERIALS, INC.
AU_2025252488_PA

Resumen de: AU2025252488A1

Set forth herein are slurries useful for extracting lithium, and other metals and materials, from both inert and live battery scrap, in which the slurries include calcium oxide, calcium hydroxide, hydrated-lime, carbon, or a combination thereof. Also set forth herein are processes and apparatuses for extracting lithium, and other metals and materials, from both inert and live battery scrap that is calcined, once or twice, and processed in a slurry that includes calcium oxide, calcium hydroxide, hydrated-lime, carbon, or a combination thereof.

VAPOR CHAMBER AND BATTERY PACK

NºPublicación:  AU2024466874A1 15/10/2026
Solicitante: 
EVE ENERGY CO LTD
EVE ENERGY CO., LTD.
AU_2024466874_PA

Resumen de: AU2024466874A1

Disclosed in the present application are a vapor chamber and a battery pack. The vapor chamber comprises a first thermally conductive layer, a second thermally conductive layer and a third thermally conductive layer, wherein the first thermally conductive layer comprises a first surface and a second surface that are opposite each other in a first direction; the second thermally conductive layer comprises a third surface and a fourth surface that are opposite each other in the first direction; the third thermally conductive layer is disposed between the first thermally conductive layer and the second thermally conductive layer in the first direction; and the third thermally conductive layer comprises a fifth surface, a sixth surface, a seventh surface, and an eighth surface that are connected sequentially, the fifth surface abutting against the second surface, and the seventh surface abutting against the fourth surface.

Anodenfreie Lithium-Sekundärbatterie mit einem mit einer künstlichen SEI-Schicht beschichteten Anodenstromkollektor

NºPublicación:  DE102025120861A1 15/10/2026
Solicitante: 
BEI CORP [KR]
BEI corp
DE_102025120861_PA

Resumen de: DE102025120861A1

Offenbart wird eine anodenfreie Lithium-Sekundärbatterie mit einem Anodenstromkollektor, der mit einer künstlichen SEI-Schicht beschichtet ist, und insbesondere eine anodenfreie Lithium-Sekundärbatterie mit einem Anodenstromkollektor, der mit einer künstlichen SEI-Schicht aus einem Metall beschichtet ist.Es wird eine anodenfreie Lithium-Sekundärbatterie bereitgestellt, die in der Lage ist, die Bildung von Dendriten auf einem Anodenstromkollektor zu unterdrücken und die Kapazität und Lebensdauer der Batterie zu verbessern, indem der Anodenstromkollektor mit einer künstlichen SEI-Schicht beschichtet wird.

ASSEMBLY METHOD FOR BATTERY CELL, AND BATTERY CELL, BATTERY AND ELECTRIC DEVICE

NºPublicación:  AU2024446226A1 15/10/2026
Solicitante: 
CONTEMPORARY AMPEREX TECHNOLOGY CO LIMITED
CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
AU_2024446226_A1

Resumen de: AU2024446226A1

An assembly method for a battery cell, and a battery cell, a battery and an electric device, which belong to the technical field of batteries. The battery cell comprises a casing component, a terminal post component mounted to the casing component, and an electrode component accommodated in the casing component and connected to the terminal post component, wherein the casing component comprises a casing body and a casing cover, the casing body has an opening, the casing cover seals the opening, and the casing body or the casing cover comprises a first casing wall. The assembly method comprises: connecting an electrode component to a terminal post component; and mounting to a first casing wall the terminal post component connected to the electrode component.

Verfahren und System zum Kühlen einer Antriebsbatterie eines elektrisch betreibbaren Fahrzeugs

NºPublicación:  DE102025001205A1 15/10/2026
Solicitante: 
MERCEDES BENZ GROUP AG [DE]
Mercedes-Benz Group AG
DE_102025001205_PA

Resumen de: DE102025001205A1

Die Erfindung betrifft ein Verfahren zum Kühlen einer Antriebsbatterie (20) eines elektrisch betreibbaren Fahrzeugs (10), welche Antriebsbatterie (20) eine Mehrzahl von Batteriezellen aufweist, umfassend Kühlen der Antriebsbatterie (20) während eines Ladevorgangs durch Leiten eines Luftstroms aus einer Drucklufteinrichtung (14) des Fahrzeugs (10) über eine Abzweigleitung (16) der Drucklufteinrichtung (14) durch einen Batterieinnenraum (22) der Antriebsbatterie (20).Die Erfindung betrifft ferner ein System (100) zum Kühlen einer Antriebsbatterie (20) eines elektrisch betreibbaren Fahrzeugs (10).

NEGATIVE ELECTRODE MATERIAL AND BATTERY

NºPublicación:  EP4822776A1 14/10/2026
Solicitante: 
BTR NEW MAT GROUP CO LTD [CN]
BTR New Material Group Co., Ltd.
EP_4822776_PA

Resumen de: EP4822776A1

An anode material and a battery provided. The anode material includes an active material. The active material includes a first matrix and a second matrix. The anode material has pores. The anode material has a pore volume represented as M cm3/g, a pore volume measured after being subjected to a pressure of 80 MPa for 1 h represented as N cm3/g, and a particle spatial collapse ratio represented as P, and P=(M-N)/M, where 0.002≤M≤0.12, and 0.05≤P≤0.85. By controlling the pore volumes of the anode material before and after the pressurization, the rigidity strength of the anode material is modulated, thereby improving electrochemical performances of the anode material while ensuring the structure stability of the anode material.

BATTERY CELL, BATTERY UNIT, BATTERY PACK, AND ELECTRIC DEVICE

NºPublicación:  EP4822882A1 14/10/2026
Solicitante: 
CONTEMPORARY AMPEREX TECHNOLOGY CO LTD [CN]
Contemporary Amperex Technology Co., Limited
EP_4822882_PA

Resumen de: EP4822882A1

0001 A battery cell, a battery unit, a battery pack, and an electric device, relating to the technical field of batteries. The battery cell comprises a casing assembly (1), a bare cell (2), and poles (3). The bare cell (2) is arranged inside the casing assembly (1). The poles (3) are arranged on the casing assembly (1). The poles (3) are electrically connected to tabs (20) of the bare cell (2). Each pole (3) comprises a first connecting part (30) and a second connecting part (31) which are connected to each other. When projected along an arrangement direction of the bare cell (2) and the poles (3), the projection area of the first connecting part (30) and the projection area of the second connecting part (31) do not overlap. The first connecting part (30) is welded to the corresponding tab (20) of the bare cell (2). The second connecting part (31) is welded to a busbar. The technical solution can increase the space utilization rate of a battery cell and improves the energy density of the battery cell.

POWER STORAGE EQUIPMENT, DETERMINATION DEVICE, AND COMPUTER PROGRAM

NºPublicación:  EP4822939A1 14/10/2026
Solicitante: 
GS YUASA INT LTD [JP]
GS Yuasa International Ltd.
EP_4822939_PA

Resumen de: EP4822939A1

0001 An energy storage facility includes: a plurality of energy storage devices that is connected in parallel; and a connection circuit that connects the plurality of energy storage devices to an external current supply source or current supply destination. The connection circuit includes a first current path that is connected to the current supply source or the current supply destination, a plurality of second current paths that is branched from the first current path and respectively connected to the plurality of energy storage devices, a first current sensor that measures a current flowing through the first current path, and a plurality of second current sensors that individually measures currents flowing through the plurality of respective second current paths. The energy storage facility includes a determination unit that determines whether or not there is an abnormality in the connection circuit using a measurement result of the first current sensor and measurement results of the plurality of second current sensors.

ENERGY MANAGEMENT FOR MAGNETO-ELECTROCHEMICAL SYSTEM

NºPublicación:  EP4821086A1 14/10/2026
Solicitante: 
GAUSSION LTD [GB]
Gaussion Ltd
GB_2636212_PA

Resumen de: GB2636212A

A system comprises a magneto-electrochemical sub-system comprising one or more magnetic field sources 3, the magnetic field source(s) being configured to generate a respective magnetic field through one or more electrochemical cells 2. The system further comprises a thermal management sub-system for performing thermal management on the magneto-electrochemical sub-system, the thermal management sub-system comprising a thermal fluid 11 in thermal communication with the magnetic field source(s) and/or the electrochemical cell(s). Air can be used as an alternative thermal fluid (figure 5). In an alternative aspect, the thermal management sub-system comprises a controller for controlling the magnetic field and hence a resulting amount of heat generated by the magnetic source(s). In a further aspect, a system comprises the same magneto-electrochemical sub-system as before, and an electric motor (17, figure 8) electrically coupled to the magneto-electrochemical sub-system or an electric motor (17, figure 11) magnetically coupled to the magneto-electrochemical sub-system via one or more magnetic field guides (4, figure 11). The system can be used in an electric vehicle.

ELECTROCHEMICAL CELL

NºPublicación:  EP4821072A1 14/10/2026
Solicitante: 
BASQUEVOLT S A [ES]
Basquevolt, S.A.
EP_4567929_PA

Resumen de: EP4567929A1

The present invention relates to an electrochemical cell comprising lithium as anode material, a nickel-rich NMC material as cathode material and a polymer electrolyte comprising a cross-linked acrylate polymer and a combination of lithium salts comprising lithium ((difluoromethyl)sulfonyl)((trifluormethyl)sulfonyl imide. It also relates to a method for the preparation of such electrochemical cell and to its use as a battery.

CATHODE FOR ALL-SOLID-STATE BATTERY AND ALL-SOLID-STATE BATTERY COMPRISING SAME

NºPublicación:  EP4822758A1 14/10/2026
Solicitante: 
LG ENERGY SOLUTION LTD [KR]
LG Energy Solution, Ltd.
EP_4822758_A1

Resumen de: EP4822758A1

0001 The present invention relates to a positive electrode for an all-solid-state battery and an all-solid-state battery comprising same. More specifically, in the manufacture of a positive electrode for an all-solid-state battery by a dry process, they can control the content of the conductive material included in the positive electrode active material layer to improve the electronic conductivity, and improve the performance of the all-solid-state battery.

INSULATION DETECTION METHOD AND APPARATUS FOR ENERGY STORAGE SYSTEM, DEVICE, MEDIUM, AND PROGRAM PRODUCT

NºPublicación:  EP4822364A1 14/10/2026
Solicitante: 
CONTEMPORARY AMPEREX TECHNOLOGY CO LTD [CN]
Contemporary Amperex Technology Co., Limited
EP_4822364_PA

Resumen de: EP4822364A1

0001 An insulation detection method and apparatus for an energy storage system, a device, a medium, and a program product. The method comprises: acquiring an insulation resistance value of each battery cluster in an energy storage system; on the basis of the insulation resistance value of each battery cluster, determining insulation information of each battery cluster, the insulation information comprising whether an insulation fault is present, as well as a fault level under when an insulation fault is present; and, on the basis of the insulation information of each battery cluster, determining insulation information of the energy storage system. The described detection method and apparatus, the device, the medium, and the program product can improve the safety and stability of an energy storage system.

TAB INSPECTION SYSTEM AND METHOD

NºPublicación:  EP4822339A1 14/10/2026
Solicitante: 
CONTEMPORARY AMPEREX TECHNOLOGY CO LTD [CN]
CONTEMPORARY AMPEREX RUNZHI SOFTWARE TECH LIMITED [CN]
Contemporary Amperex Technology Co., Limited
Contemporary Amperex Runzhi Software Technology Limited
EP_4822339_PA

Resumen de: EP4822339A1

A tab (70) inspection system and method, which are used for inspecting a tab (70) in a battery cell obtained by means of cell integration processing. The battery cell comprises a battery cell body (50), the tab (70) and a cover plate (60), wherein the tab (70) is arranged between the cover plate (60) and the battery cell body (50). The tab inspection system comprises: a distance expansion apparatus (10), a light source (20), a photographic apparatus (30) and an upper computer (40), wherein the distance expansion apparatus (10) is used for expanding the distance between the battery cell body (50) and the cover plate (60), so as to expose a side face of the tab (70); the light source (20) is used for lighting the side face of the tab (70); the photographic apparatus (30) is used for acquiring a first scanning image which contains the side face of the tab (70); and the upper computer (40) is used for determining, on the basis of the first scanning image, whether the side face of the tab (70) is fractured. After a battery cell has been subjected to cell integration processing, the distance expansion apparatus (10) may be used to expand the distance between the battery cell body (50) and the cover plate (60), so as to expose the side face of the tab (70), such that an inspection for the tab (70) is realized, thereby improving the safety of the battery cell.

ELECTRODE FOR ENERGY STORAGE DEVICE AND ENERGY STORAGE DEVICE COMPRISING SAME

NºPublicación:  EP4822757A1 14/10/2026
Solicitante: 
LG ENERGY SOLUTION LTD [KR]
LG Energy Solution, Ltd.
EP_4822757_PA

Resumen de: EP4822757A1

0001 The present invention relates to an electrode for an energy storage device and an energy storage device including the same. More specifically, when manufacturing an electrode for an energy storage device by a dry process, the degree of fiberization of a binder may be controlled by changing calendering process conditions, thereby reducing the porosity of the electrode, improving tensile strength and interfacial resistance, and thus improving the energy density of the energy storage device.

SECONDARY BATTERY AND ELECTRIC DEVICE

Nº publicación: EP4822771A1 14/10/2026

Solicitante:

CONTEMPORARY AMPEREX TECHNOLOGY CO LTD [CN]
Contemporary Amperex Technology Co., Limited

EP_4822771_PA

Resumen de: EP4822771A1

The present application provides a secondary battery and an electric device. The secondary battery comprises a positive electrode sheet, a negative electrode sheet, and an electrolyte solution; the positive electrode sheet comprises a positive electrode current collector and a positive electrode film layer provided on at least one side of the positive electrode current collector and comprising a positive electrode active material; the positive electrode active material comprises an inner core of lithium iron phosphate material and a carbon shell layer at least partially covering the outer surface of the inner core; in the Raman spectrum of the positive electrode active material, a ratio Id/Ig of a peak intensity Id of D peak of a Raman shift within a range of 1350±50 cm-1 to a peak intensity Ig of G peak of a Raman shift within a range of 1580±50 cm-1 is 0.2-1.5; the negative electrode sheet comprises a negative electrode current collector and a negative electrode film layer provided on at least one side of the negative electrode current collector; and when the state of charge of the secondary battery is 100% or the voltage of the secondary battery is 3.65 V, a heat release amount Q of the negative electrode film layer in the electrolyte solution satisfies: 250 J/g≤Q≤600 J/g.

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