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NONAQUEOUS ELECTROLYTE AND LITHIUM SECONDARY BATTERY COMPRISING SAME

Resumen de: MX2025008155A

The present invention provides a nonaqueous electrolyte comprising: a lithium salt; an organic solvent; and a compound represented by chemical formula 1. Chemical formula 1 In chemical formula 1, each of R₁ to R₅ is independently any one selectred from the group consisting of H, F, a nitrile group, a C2-10 alkoxycarbonyl group, a C2-10 alkylcarbonyl group, a C1-10 alkyl group, a C2-10 alkenyl group and a C2-10 alkynyl group, and n is an integer of 1 to 5.

BATTERY SYSTEM AND OPERATING METHOD OF BATTERY SYSTEM

Resumen de: MX2025007619A

A battery system of the present invention is positioned in an electric vehicle and may comprise: a main battery; a battery management device for controlling that the supply of power by the main battery is blocked when an anomaly occurs in one or more components included in the electric vehicle; and an auxiliary battery which is provided separately from the main battery, and which supplies power to one or more components provided in a cooling system for cooling the main battery.

ZINC ELECTRODE

Resumen de: MX2025007007A

The present invention relates to a zinc electrode (100) on which a solid metallic zinc layer (300) is electrodeposited, an electrochemical cell and a method for zinc electrodeposition in the electrochemical cell. According to the invention, a zinc electrode (100) is provided, wherein the zinc electrode (100) comprises a current collector material (200) on which a zinc layer (300) is electrodeposited, wherein the zinc layer (300) appears as compact solid metal, comprises a boulder-like and/or layerlike microstructure, and is adherent with a compact porosity.

PROCÉDÉ DE PRÉPARATION D’UN MATÉRIAU DE CATHODE POUR BATTERIE

Resumen de: FR3158832A1

L’invention concerne un procédé de préparation d’un matériau de cathode pour batterie, comprenant une étape d’obtention de ce matériau de cathode sous forme d’un mélange de particules dites primaires, de distribution de taille monomodale et de diamètre moyen en volume inférieur ou égal à 2 µm, puis une étape de mise en forme dudit mélange de particules primaires par granulation par broyage dans un broyeur à billes, dans un mélange de solvants organiques comprenant un solvant organique polaire et un solvant organique apolaire, le solvant organique polaire et le solvant organique apolaire étant non miscibles. Le matériau de cathode sous forme particulaire ainsi obtenu présente une bonne performance électrochimique, une faible réactivité et une densité d’énergie élevée.

Procédé d’auto-paramétrage des conditions de charge d'une batterie d'accumulateurs

Resumen de: FR3158802A1

Procédé d’auto-paramétrage des conditions de charge d'une batterie d'accumulateurs électrochimiques, notamment une batterie lithium, ladite batterie étant connectée à une source d'alimentation apte à la charger, comprenant : la détection d’au moins un point p d’inflexion dans la courbe de tension de charge de la batterie Ubat fonction du taux de charge électrique exprimé en pourcentage de la capacité C de la batterie ;pour chaque point p d’inflexion détecté, une déconnexion de la batterie de sa source d’alimentation pendant une période de relaxation prédéterminée ;à l’issue de ladite période de relaxation, la mémorisation de la tension à vide UxR de la batterie pour chacun des points d’inflexion, ladite tension à vide UxR constituant un marqueur d’un niveau de charge intermédiaire utilisable comme seuil d’arrêt de charge au cours de la charge d’une batterie. Fig. de l’abrégé: Fig. 2

METHOD FOR REGENERATING POSITIVE ELECTRODE ACTIVE MATERIAL, REGENERATED POSITIVE ELECTRODE ACTIVE MATERIAL MANUFACTURED THEREBY, AND SECONDARY BATTERY COMPRISING SAME

Resumen de: MX2025007757A

The present invention relates to a method for regenerating a regenerated positive electrode active material, a regenerated positive electrode active material manufactured thereby, and a secondary battery including same and, more specifically, to a method for regenerating a positive electrode active material, a regenerated positive electrode active material manufactured thereby, and a secondary battery including same, the method comprising the steps of: recovering the cathode active material by thermally treating a spent positive electrode that has a cathode active material layer formed on a current collector, to thermally decompose the binder and conductive material in the positive electrode active material layer; performing primary milling on the recovered positive electrode active material; adding a lithium precursor to the primarily annealed positive electrode active material, followed by annealing at 400 to 1000°C; and performing secondary milling on the annealed positive electrode active material. According to the present invention, by performing primary milling without a washing process on the positive electrode active material recovered after thermal treatment of the spent positive electrode, adding a lithium precursor to the primarily milled positive electrode active material, annealing, and then performing secondary milling, damage to the particle surface of the positive electrode active material is prevented, uniformity of the particle size of the regenerated pos

PROCEDE ET DISPOSITIF DE DETERMINATION D’UN INDICATEUR DE VALIDATION DE TESTS D’UNE BATTERIE DE TRACTION POUR VEHICULE ELECTRIFIE

Resumen de: FR3158800A1

La présente invention concerne un procédé et un dispositif de détermination d’un indicateur de validation de tests d’une batterie de traction pour véhicule électrifié. En effet, le procédé comprend la réception de données représentatives d’indicateurs d’un niveau de développement de composants et de moyens de fabrication de la batterie de traction et la classification de ces données pour obtenir un identifiant d’une classe permettant la détermination d’une séquence d’essais de validation (21) de la batterie de traction et la détermination d’un nombre d’échantillons formant un ensemble d’échantillons (22) de la batterie de traction à générer pour réaliser la séquence d’essais de validation. Des données représentatives du nombre d’échantillons et de la séquence d’essais de validation sont émises et des résultats des essais sont reçus. Les résultats sont comparés à des résultats cibles et l’indicateur est déterminé en fonction d’un résultat de la comparaison. Figure 2

ELECTRODE PRODUCTION DEVICE AND BATTERY CELL INCLUDING ELECTRODE PRODUCED USING SAME, AND BATTERY PACK AND VEHICLE INCLUDING BATTERY CELL

Resumen de: MX2025008691A

Disclosed are an electrode production device and a battery cell including an electrode produced using same, and a battery pack and a vehicle including a battery cell. An electrode production device according to an embodiment of the present invention is an electrode production device which produces an electrode by transferring an electrode foil having a coated part of a coating layer and a non-coated part of a non-coating layer which are formed thereon, the electrode production device including: a transfer unit for transferring the electrode foil; a coated part pressing unit for pressing the coated part of the electrode foil transferred by the transfer unit; and a non-coated part pressing unit which is spaced apart from the coated part pressing unit and presses the non-coated part, wherein a heat supply member for supplying heat to the non-coated part is provided in the non-coated part pressing unit.

METHOD FOR REGENERATING POSITIVE ELECTRODE ACTIVE MATERIAL AND REGENERATED POSITIVE ELECTRODE ACTIVE MATERIAL MANUFACTURED THEREBY

Resumen de: MX2025007770A

The present invention relates to a method for regenerating a positive electrode active material and a regenerated positive electrode active material manufactured thereby and, more specifically, to a method for regenerating a positive electrode active material and a regenerated positive electrode active material manufactured thereby, the method comprising: (a) a step for recovering a positive electrode material by heat-treating, in air or oxygen, a waste positive electrode including a current collector and a positive electrode active material layer coated thereon; (b) a step for adding a lithium precursor to the recovered positive electrode active material and heat-treating in air to restore the crystal structure of the positive electrode active material; (c) a step for adding a dopant precursor to the positive electrode active material with the restored crystal structure and heat-treating same to dope the positive electrode active material; and (d) a step for washing the doped positive electrode active material with a washing solution.ã¿¿According to the present invention, the regenerated positive electrode active material is doped with a predetermined dopant using a predetermined method, thereby improving capacity characteristics and lifespan characteristics. Thus, the present invention has the effect of providing a method for regenerating a positive electrode active material having excellent crack resistance and a regenerated positive electrode active material manufactur

리튬 보충 재료, 양극, 전기화학 장치, 및 전력 소비 디바이스

Resumen de: CN118315577A

The invention provides a lithium supplementing material. The lithium supplementing material comprises Li < 5 > Fe < 1-x > M < x > O < 4 > and a coating layer arranged on the surface of the Li < 5 > Fe < 1-x > M < x > O < 4 >, the coating layer comprises ZnO doped with M'ions, and the M 'ions are ions capable of forming a displacement type solid solution with ZnO. Wherein the coating layer can inhibit chemical reaction between Li5Fe1-xMxO4 particles and carbon dioxide and water in the air and block reaction between the lithium supplementing material and the outside, so that the lithium supplementing material has relatively good stability, the overall conductivity of the lithium supplementing material can be improved, and when the lithium supplementing material is used for an electrochemical device such as a lithium ion battery, the formation time can be greatly shortened, and the production cost can be reduced. The first coulombic efficiency and the cycle performance of the battery are remarkably improved, and the battery consistency is relatively good.

BATTERY

Resumen de: US2025239658A1

A battery has a positive electrode active material layer, a negative electrode active material layer, and an electrolyte layer, arranged between the positive electrode active material layer and the negative electrode active material layer. And at least one of the positive electrode active material layer, the negative electrode active material layer, and the electrolyte layer contains a Li—Al halide-based molten salt, the Li—Al halide-based molten salt contains a first salt as a main component and a second salt as an added component. The first salt is a Li—Al halide salt at least containing LiAlCl4, and the second salt is an ionic liquid.

BARE CELL CASING PRODUCTION LINE AND BATTERY CELL PRODUCTION LINE

Resumen de: WO2025156522A1

The present disclosure relates to the technical field of batteries. Provided are a bare cell casing production line and a battery cell production line. The bare cell casing production line comprises a bare cell conveying module (1), a coating material conveying module, and an assembling module. The bare cell conveying module is configured to convey a bare cell; an output end of the coating material conveying module and the bare cell conveying module are both connected to the assembling module. The assembling module is configured to assemble a bare cell conveyed by the bare cell conveying module with a coating material conveyed by the coating material conveying module; the coating material conveying module comprises a casing material conveying sub-module (4); the casing material conveying sub-module comprises a casing material feeding mechanism (41), at least two casing material preparation assemblies (42), a feeding conveying line (43), and a moving mechanism. The moving mechanism raises the casing material preparation assemblies from the feeding conveying line and conveys said assemblies to one side of the feeding conveying line. The bare cell casing production line is used for bare cell casing.

BATTERY CASING HAVING EXPLOSION-PROOF SCORE LINES, MANUFACTURING METHOD THEREFOR, AND SECONDARY BATTERY

Resumen de: WO2025156674A1

A battery casing having explosion-proof score lines (200), a manufacturing method therefor, and a secondary battery. The battery casing having explosion-proof score lines (200) comprises a casing (100), explosion-proof score lines (200) being formed on an outer surface and/or an inner surface of the casing (100). The explosion-proof score lines (200) comprise multiple first score lines (211), (212), (213), (214), (215), (216), (217), (218), (219), (220), (221) and (222) which are disposed at intervals, and multiple second score lines (251), (252), (253), (254), (255), (256), (257), (258), (259), (260) and (261) connected between every two adjacent first score lines (211), (212), (213), (214), (215), (216), (217), (218), (219), (220), (221) and (222). The score line residual values of each of the second score lines (251), (252), (253), (254), (255), (256), (257), (258), (259), (260) and (261) are all lower than the score line residual values of the first score lines (211), (212), (213), (214), (215), (216), (217), (218), (219), (220), (221) and (222). The tearing difficulty of each area of explosion-proof score lines (200) is adjusted by means of the second score lines (251), (252), (253), (254), (255), (256), (257), (258), (259), (260) and (261), such that the tearing difficulty of each area of explosion-proof score lines (200) is relatively similar, so that, when bursting occurs, the area outside the explosion-proof score lines (200) of the casing is prevented from being tor

ELECTRODE PLATE, ELECTROCHEMICAL APPARATUS, AND ELECTRONIC DEVICE

Resumen de: US2025246776A1

An electrode plate includes a current collector, an active substance layer, a tab, and a first insulation adhesive layer. The active substance layer is disposed on surface of the current collector, and the active substance layer is provided with a first groove and a second groove running through the bottom of the first groove to the current collector. The current collector is partially exposed within the second groove. The tab is accommodated in the first groove and the second groove and connected to the current collector. The first insulation adhesive layer is disposed on a side of the first groove facing away from the current collector, and projections of the first insulation adhesive layer and the tab along a thickness direction of the current collector are located within the first groove of the active substance layer.

ALL-SOLID-STATE BATTERY

Resumen de: US2025246675A1

An all-solid-state battery according to an embodiment includes: a solid electrolyte layer; a positive electrode layer and a negative electrode layer disposed with the solid electrolyte layer interposed therebetween; and margin layers disposed at edges of the positive electrode layer and the negative electrode layer, respectively, in a lateral direction, wherein the solid electrolyte layer includes a first solid electrolyte that is glass or glass ceramic that does not contain an element S (sulfur), and the margin layers include a second solid electrolyte that is glass or glass ceramic that contains the element S (sulfur).

COMPOSITION FOR COATING A SEPARATOR, SEPARATOR, AND LITHIUM BATTERY EMPLOYING THE SEPARATOR

Resumen de: US2025246756A1

Provided are a composition for coating a separator, a method of preparing a separator by using the same, a separator, and a lithium battery employing the separator. The composition for coating a separator includes: a polyacrylamide-based copolymer including a cross-linking reactive group; inorganic particles; and water, and the cross-linking reactive group includes at least two functional groups cross-linkable with each other. The composition for coating a separator may be used as a one-component type without a crosslinker, and a separator having high thermal resistance characteristics may be prepared by using the composition.

EXPLOSION-PROOF VALVE INTEGRATED IN TOP COVER AND BATTERY PACK

Resumen de: US2025246747A1

The present disclosure relates to an explosion-proof valve integrated in a top cover and a battery pack, including: a top cover body, provided with an accommodating chamber; an explosion-proof valve body, including a pressure relief channel and a breathable film, in which the pressure relief channel and the top cover body are integrally molded, an end of the pressure relief channel is in communication with an interior of the accommodating chamber, an opposite end of the pressure relief channel is in communication with an exterior of the accommodating chamber and the breathable film is assembled to the end of the pressure relief channel.

POWER STORAGE MODULE AND POWER STORAGE DEVICE

Resumen de: US2025246739A1

A power storage module includes a first stack and a second stack alternately disposed side by side in a first direction, wherein the first stack includes a plurality of first unit cells arranged in the first direction, and the second stack includes a plurality of second unit cells arranged in an up-down direction orthogonal to the first direction.

ENERGY STORAGE DEVICE AND ENERGY STORAGE APPARATUS

Resumen de: US2025246748A1

An energy storage device includes a container that accommodates an electrode assembly, and the container includes, on a surface of the container as viewed from a thickness direction of the container, a first recessed portion in a portion of a corner portion of the surface or in a portion of a side portion of the surface. The first recessed portion penetrates in the thickness direction, and a gas release valve is disposed in the first recessed portion.

SECONDARY BATTERY

Resumen de: US2025246729A1

One embodiment of the present disclosure relates to a secondary battery including a cylindrical can including a circular bottom part, and a side part extending from the bottom part, the side part having an open end portion, an electrode assembly accommodated in the cylindrical can, a current interrupt device disposed in the open end portion of the side part and having a vent therein, and a gasket disposed between the side part and the current interrupt device and including a protrusion configured to support a lower part of the current interrupt device.According to the embodiment of the present disclosure, by improving the shape of the gasket, components such as a cap-up and a safety vent are not deformed by pressure when a crimping part and a beading part are formed on the can for assembly of the cap assembly. Thus, the stability of the secondary battery can be improved.

TOP COVER ASSEMBLY, BATTERY CELL, ASSEMBLING METHOD FOR BATTERY CELL, AND ELECTRIC DEVICE

Resumen de: US2025246727A1

A top cover assembly, a battery cell, an assembling method for a battery cell, and an electric device. The top cover assembly includes: a top cover loading-into-housing assembly, comprising an insulation member, an adapter, a first end cover and a pole connected to the adapter, wherein the projection contour of the first end cover falls within an area defined by the outer edge contour of the insulating member. A projection contour of the first end cover is located within a region defined by an outer edge contour of the insulation member, and the pole sequentially penetrates the insulation member and the first end cover.

BATTERY TEMPERATURE ADJUSTMENT SYSTEM AND BATTERY TEMPERATURE ADJUSTMENT METHOD

Resumen de: US2025246706A1

A battery temperature adjustment system includes: a temperature adjustment device adjusts a temperature of a power storage device; and a processor. A setting mode of the temperature adjustment device includes: a first mode in which, in response to a travel route of includes a charging facility, the temperature is adjusted within a first temperature range suitable for charging at a time of arrival at the facility; and a second mode in which, in response to receiving a predetermined operation for adjusting the temperature within a second temperature range suitable for charging or traveling, the temperature is adjusted within the second temperature range. The processor controls the temperature adjustment device to adjust the temperature according to the setting mode; and when the setting mode is the first mode, rejects the predetermined operation and maintain the first mode in a case where the predetermined operation is received.

GRAPHENE OXIDE, POSITIVE ELECTRODE FOR NONAQUEOUS SECONDARY BATTERY USING GRAPHENE OXIDE, METHOD OF MANUFACTURING POSITIVE ELECTRODE FOR NONAQUEOUS SECONDARY BATTERY, NONAQUEOUS SECONDARY BATTERY, AND ELECTRONIC DEVICE

Resumen de: US2025246633A1

A graphene oxide used as a raw material of a conductive additive for forming an active material layer with high electron conductivity with a small amount of a conductive additive is provided. A positive electrode for a nonaqueous secondary battery using the graphene oxide as a conductive additive is provided. The graphene oxide is used as a raw material of a conductive additive in a positive electrode for a nonaqueous secondary battery and, in the graphene oxide, the atomic ratio of oxygen to carbon is greater than or equal to 0.405.

BATTERY CELL AND BATTERY PACK

Resumen de: WO2025157230A1

The present application relates to the technical field of batteries, and discloses a battery cell and a battery pack. The battery cell comprises a casing and an explosion-proof valve; the casing is provided with an accommodating cavity; the casing comprises a plurality of sidewalls that are used for defining the accommodating cavity; the sidewalls are provided with a pressure relief hole communicated with the accommodating cavity; the explosion-proof valve covers and seals the pressure relief hole; the explosion-proof valve comprises a body and a base; the body is provided with a notch; the body comprises an elastic strain portion; the elastic strain portion is arranged around at least part of the notch; the base surrounds the body, and the base is separately connected to the body and the sidewalls; the elastic strain portion is used for generating elastic deformation in the direction from the base to the notch. According to the present application, the explosion-proof valve comprising the elastic strain portion is arranged in the pressure relief hole on the casing, so as to prevent welding deformation from being generated when welding the explosion-proof valve to the casing, thereby preventing the opening pressure change of the explosion-proof valve, and further improving the safety of the battery cell.

COVER PLATE ASSEMBLY AND BATTERY CELL

Nº publicación: WO2025157228A1 31/07/2025

Solicitante:

SVOLT ENERGY TECH CO LTD [CN]
\u8702\u5DE2\u80FD\u6E90\u79D1\u6280\u80A1\u4EFD\u6709\u9650\u516C\u53F8

Resumen de: WO2025157228A1

A cover plate assembly and a battery cell comprising the cover plate assembly. The cover plate assembly comprises a cover plate (1) and an explosion-proof valve body (2). The explosion-proof valve body (2) comprises a valve plate (20); the valve plate (20) comprises an opening portion (200) and an outer edge portion (201) surrounding the opening portion (200); the outer edge portion (201) is connected to the cover plate (1); the valve plate (20) is provided with a score line (202); the score line (202) has a first end (2020) and a second end (2021); a base (21) surrounds the outer edge portion (201); and the base (21) has a first side surface (210) and a second side surface (211). The residual thickness of the valve plate (20) at the score line (202) is T, the depth of the score line is T1, the distance between the first side surface (210) and the second side surface (211) is W1, and the minimum distance between the score line (202) and the second side surface (211) is W2, satisfying: 0.2≤T/(T+T1)≤0.5, and 0.3≤W2-W1≤5. By optimizing the parameters and dimensions of portions of the valve plate (20), it is ensured that the explosion-proof valve body (2) and the cover plate (1) have sufficient structural strength, thereby improving the overall strength of the battery cell. In addition, when the pressure inside the battery cell reaches a threshold, the opening portion (200) can be opened in a timely manner by means of the score line (202), thereby improving the safety of