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LITHIUM SECONDARY BATTERY AND OPERATION METHOD THEREFOR

Resumen de: EP4576256A1

A lithium secondary battery according to exemplary embodiments may include a cathode which includes: a cathode current collector, and a cathode active material layer formed on the cathode current collector and including cathode active material particles; and an anode disposed to face the cathode. The cathode active material particles may include activated over-lithiated oxide particles and a coating material formed on at least a portion of the surface of the activated particles and containing a coating element. An upper limit of operation voltage of the lithium secondary battery may be 4.5 V or less relative to the oxidation-reduction potential of lithium.

BATTERY MANAGEMENT APPARATUS, BATTERY PACK, ELECTRIC VEHICLE AND BATTERY MANAGEMENT METHOD

Resumen de: EP4576490A1

A battery management apparatus, a battery pack, an electric vehicle and a battery management method are provided. The battery management apparatus according to the present disclosure includes a state detection unit configured to obtain a plurality of cell state parameters indicating an electric state of each of the plurality of battery cells; a balancing processing unit configured to perform a balancing process, which is a procedure of selectively discharging or charging each of the plurality of battery cells, to suppress deviation in the electric state between the plurality of battery cells; and a control unit configured to control the balancing processing unit to perform a balancing process for at least one battery cell among the plurality of battery cells, based on the plurality of cell state parameters.

ELECTROCHEMICAL APPARATUS AND ELECTRONIC DEVICE

Resumen de: EP4576262A1

This application relates to an electrochemical device. The electrochemical device includes a negative electrode. The negative electrode includes a negative current collector and a negative active material layer disposed on the negative current collector. The negative active material layer includes a negative active material. The negative active material includes a carbon-based material, silicon, and sulfur. Based on a total mass of the negative active material layer, a mass percentage of the silicon is a%, and a mass percentage of the sulfur is b%, 0.1 ≤ a/b < 1, and 0.03 ≤ b ≤ 0.55.

NEGATIVE ELECTRODE SHEET, SECONDARY BATTERY, AND ELECTRONIC DEVICE

Resumen de: EP4576249A1

A negative electrode plate is provided. The negative electrode plate includes a negative electrode current collector and a negative electrode active material layer disposed on the negative electrode current collector. The negative electrode active material layer includes a negative electrode active material. The negative electrode active material includes negative electrode active material particles, the negative electrode active material particles including a first particle having a pore. In a 200 µm×200 µm region of a cross section of the negative electrode active material layer, the negative electrode active material satisfies 0.10≤TD-0.05×(1/X)≤0.40, where X represents a ratio of an average cross-sectional area of the pore in the first particle to an average cross-sectional area of the first particle, and 4.0%≤X≤15%, and TD represents a tap density of the negative electrode active material, in g/cm<3>. The negative electrode plate of this application has excellent kinetic performance, and can effectively improve charge and discharge performance of a secondary battery at low temperatures. A secondary battery including the negative electrode plate is further provided.

COOLANT COLLECTION DEVICE WITH RIGID TUBE CONNECTIONS

Resumen de: WO2024088759A1

The invention relates to a coolant collection device (1). The coolant collection device (1) has at least two rigid coolant collection tubes (2) and a T-shaped connecting piece (3) with three tubular connecting elements (3a, 3b, 3c). The T-shaped connecting piece (3) is arranged between the rigid coolant collection tubes (2) and a first (3a) of the three tubular connecting elements (3a, 3b, 3c) is designed to be received in a coolant channel (4) of a battery cooling profile (5), wherein the second (3b) and third (3c) of the three tubular connecting elements (3a, 3b, 3c) are each connected to the coolant collection tubes (2). A battery coolant distribution system (10) for a vehicle (16) is also described. A vehicle (16) is also described. A method for producing a coolant collection device (1) is also described. In addition, a method for producing a battery coolant distribution system (10) is described.

SYSTEM AND METHOD FOR MANUFACTURING A BATTERY CELL

Resumen de: WO2024038240A1

The present invention relates to a method for manufacturing a battery cell, the method comprising the following steps: - providing (E30) a main-electrodes assembly (10) comprising at least two first electrode plates (3), at least two second electrode plates (5) and at least one electrode separator (1) sandwiched in a transverse direction (Z); - at least partially cutting (E50) the main-electrodes assembly (10) in the transverse direction (Z) of the main-electrodes assembly (10) in order to form at least two auxiliary-electrodes assemblies (13), each auxiliary-electrodes assembly (13) comprising at least a first auxiliary-electrodes plate (3a, 3b, 3c, 3d), at least a second auxiliary-electrodes plate (5a, 5b, 5c, 5d), and at least an auxiliary-electrodes separator (1). The invention also relates to a manufacturing system for manufacturing such a battery cell.

METHOD FOR PRODUCING A BATTERY ACTIVE MATERIAL AND PRODUCT THEREOF

Resumen de: WO2024040048A1

The present disclosure relates to the production of active materials that may be used in a battery anode and compositions thereof. The active materials may be composed of natural graphite or graphitizable primary particles that are agglomerated into secondary particles with an agglomeration solution. The resulting secondary particles may be carbonized and graphitized prior to their use as battery active materials.

CURRENT COLLECTOR, SECONDARY BATTERY, ELECTRIC DEVICE, AND PREPARATION METHOD FOR CURRENT COLLECTOR

Resumen de: EP4576275A1

Disclosed herein is a current collector, a secondary battery an electrical device, and a method for preparing the current collector. The current collector includes a substrate. The substrate includes the porous material. The affinity material is disposed in pores of the porous material. The affinity material is configured to promote the deposition of metal ions in an electrolyte solution. The affinity material includes at least one of a carbon-based material, a non-metal oxide, a carbide, a fluoride, a nitride, a sulfide, a phosphide, and an organic material. The above manner is able to effectively reduce the nucleation overpotential of the metal ions on the porous material of the current collector, promote the uniform diffusion and deposition of the metal ions within the pores of the porous material of the current collector, inhibit the generation of a dendrite, and improve the cyclic performance and safety of the battery.

BATTERY PACK FOR AN ELECTRICALLY DRIVEN ROAD VEHICLE AND METHOD FOR COMPENSATING THE TICKNESS VARIATION OF AN ELECTROCHEMICAL CELL FOR THE BATTERY PACK

Resumen de: EP4574537A1

A battery pack (6, 6', 6") for an electric road vehicle (1) comprising: a casing (10); a first cell (11, 12) with a first thickness (L) along a first direction (X) and accommodated inside said casing (10); a first pushing member (61, 62) movable relative to the casing (10) and operatively connected to the first cell (11, 12); a first element (41, 42) movable relative to said casing (10) along a second direction (Z) transverse to the first direction (X) and operatively connected to the first pushing member (61, 62) so as to be movable along the second direction (Z) following the movement of the first pushing member (61, 62) along the first direction (X).

IMMERSED COOLED BATTERY MODULE

Resumen de: EP4576330A1

An immersed cooled battery module (100) includes a battery tank (110), battery cells (120), and a modular panel (130). The battery tank (110) includes an outer tank (112) and an inner tank (114). The inner tank (114) is arranged in the outer tank (112). The inner tank (114) has an opening (115) connecting to the inner tank (114) and the outer tank (112). The battery cells (120) are arranged in the inner tank (114). The modular panel (130) is installed on one side of the outer tank (112). The modular panel (130) has a liquid inlet (132) and a liquid outlet (134). The liquid inlet (132) is connected to the inner tank (114). The liquid outlet (134) is connected to the outer tank (112). A coolant enters the inner tank (114) from the liquid inlet (132), then overflows to the outer tank (112) through the opening (115), and finally discharges from the liquid outlet (134) to complete the circulation of the coolant.

ENERGY STORAGE MODULE AND ASSEMBLY METHOD

Resumen de: EP4576359A1

Die Erfindung betrifft ein Energiespeichermodul (10) mit einer Vielzahl elektrochemischer Zellen (110) zum Speichern von elektrischer Energie sowie mit mindestens eine Kontaktierungsvorrichtung (200) zum elektrischen Kontaktieren der Vielzahl elektrochemischer Zellen (110). Jede der Vielzahl elektrochemischer Zellen (110) weist eine erste flächig ausgebildete Anschlussfahne (111) zum Kontaktieren einer ersten Elektrode der jeweiligen elektrochemischen Zelle (110) und eine zweite flächig ausgebildete Anschlussfahne (112) zum Kontaktieren einer zweiten Elektrode der jeweiligen elektrochemischen Zelle (110) auf. Die Vielzahl von elektrochemischen Zellen (110) ist stapelförmig angeordnet und bildet derart ein Zellenpaket (100) aus, dass die ersten und zweiten flächig ausgebildeten Anschlussfahnen (111, 112) sich zumindest im Wesentlichen senkrecht von zwei gegenüberliegenden Seiten des Zellenpakets (100) aus erstrecken. Erfindungsgemäß ist insbesondere vorgesehen, dass die mindestens eine Kontaktierungsvorrichtung (200) im Wesentlichen kammförmig ausgebildet ist und eine Vielzahl von Zinken (211, 221) aufweist, welche derart ausgebildet und angeordnet sind, dass zwischen zwei benachbarten Zinken (211, 221) eine erste oder zweite Anschlussfahne (111,112) aufnehmbar oder aufgenommen ist.

BATTERY MODULE AND BATTERY MODULE COLLECTION MECHANISM

Resumen de: EP4576399A1

A battery module and a battery module collection mechanism (1) are provided. The battery module collection mechanism (1) includes: a bracket (3), and a collection group (100) including a serial assembly (110), where the serial assembly (110) includes a first serial group (11), a second serial group (12), and a first connection member (21) all disposed on the bracket (3), the first serial group (11) and the second serial group (12) each includes a first serial row (101) and a second serial row (102) arranged oppositely, and the first serial group (11) and the second serial group (12) each is connected in series with a cell group, and two first serial rows (101) or two second serial rows (102) of the first serial group (11) and the second serial group (12) are connected to each other by the first connection member (21).

DIAPHRAGM, SLURRY FOR COATING LAYER, PREPARATION METHOD FOR EACH, ELECTRODE ASSEMBLY, BATTERY, AND ELECTRICAL DEVICE

Resumen de: EP4576389A1

This application relates to the technical field of separators, and in particular, to a separator and a preparation method thereof, a coating slurry and a preparation method thereof, an electrode assembly, a battery, and an electrical device. The separator includes a first isolation layer, a coating, and a second isolation layer. The coating is disposed on at least one surface of the first isolation layer. The coating includes a solid electrolyte material. The second isolation layer is disposed on a surface of the coating, the surface being away from the first isolation layer. The solid electrolyte material can react with metallic lithium to absorb lithium dendrites to prevent the lithium dendrites from penetrating the separator. The first isolation layer and the second isolation layer disposed on two sides of the coating respectively can prevent the lithium dendrites from penetrating the separator, and the coating being disposed between the first isolation layer and the second isolation layer can prevent the coating from contacting a positive electrode or negative electrode to cause side reactions.

RECHARGEABLE BATTERY, RECHARGEABLE BATTERY PACK AND METHOD OF MANUFACTURING CAP PLATE OF RECHARGEABLE BATTERY

Resumen de: EP4576372A1

A rechargeable battery includes: an electrode assembly including an electrode; a case to accommodate the electrode assembly; a cap plate to seal an open area of the case; and one or more terminals electrically connected to the electrode, and coupled to the cap plate. The cap plate includes: a vent to expel gas generated from inside a cell outward; and a venting guide wall surrounding the vent, and protruding outward from a surface of the cap plate at a peripheral portion of the vent.

RECHARGEABLE BATTERY

Resumen de: EP4576352A1

A rechargeable battery includes an electrode assembly (100), a case (200) configured to accommodate the electrode assembly (200), a subplate (320, 420) include a first planar portion (320_PL, 420_PL) connected to the electrode assembly (100) and a protruding portion (320_PR, 420_PR) protruding on the first planar portion (320_PL, 420_PL), a cap plate (360, 460) coupled to an open first side (210) of the case (200), and a terminal plate (380, 480) disposed on the cap plate (360, 460) and electrically connected to the subplate (320, 420), wherein the terminal plate (380, 480) comprises a first portion (380_P1, 480_P1) comprising a bottom surface and a second portion (380_P2, 480_P2) including a second planar portion connected to the first portion (380_P1, 480_P1), and the first portion of the terminal plate (380, 480) is in contact with the protruding portion (320_PR, 420_PR) of the subplate (320, 420).

BATTERY CELL AND BATTERY PACK COMPRISING SAME, AND VEHICLE COMPRISING BATTERY PACK

Resumen de: EP4576354A1

Disclosed is a battery cell, which includes an electrode assembly having a cell body and an electrode tab extending from the cell body; a cell case having an accommodation portion configured to accommodate the electrode assembly and a circumferential portion extending outward from the accommodation portion; an electrode lead electrically coupled to the electrode tab; and a conductive frame disposed on one surface of the circumferential portion and electrically coupled to the electrode lead through one surface of the circumferential portion.

ELECTRODE COMPONENT, BATTERY CELL, BATTERY AND ELECTRICAL APPARATUS

Resumen de: EP4576241A1

The present application relates to the technical field of batteries, and discloses an electrode component, a battery cell, a battery and an electrical apparatus. The electrode component (30) includes an electrode body including an active material layer (33), an insulation substrate (31) and a conductive layer (32) arranged on the insulation substrate (31), in which, a surface, facing away from the insulation substrate (31), of the conductive layer (32) includes a first area (32a) and a second area (32b) which are arranged adjacent to each other in a first direction (X), and the active material layer (33) covers the first area (32a); and a tab assembly (34) of which one end is connected to the second area (32b); wherein in the first direction (X), the maximum space between the end, connected to the second area (32b), of the tab assembly (34) and the active material layer (33) is D0, the minimum size of a part, not connected to the tab assembly (34), of the second area (32b) is D1, and D0 is smaller than D1; and therefore, the coating area of the active material layer of the electrode component can be increased, thereby improving the accommodating quantity of the active material layer on the electrode component.

NON-AQUEOUS ELECTROLYTE FOR LITHIUM SECONDARY BATTERY, AND LITHIUM SECONDARY BATTERY COMPRISING SAME

Resumen de: EP4576305A1

The present invention relates to a non-aqueous electrolyte for a lithium secondary battery, which includes a first additive including a chromone-based compound, and a lithium secondary battery including the same.

SEPARATOR AND LITHIUM SECONDARY BATTERY INCLUDING THE SAME; AND METHOD OF MANUFACTURING THE SEPARATOR

Resumen de: EP4576387A1

Provided are a separator having significantly improved heat resistance and a lithium secondary battery including the same. According to an aspect of the present disclosure, a separator including: a porous substrate; and an inorganic particle layer which is formed on at least one surface of the porous substrate and includes a binder and inorganic particles, wherein the separator has a ratio of a total thickness of the inorganic particle layer to a thickness of the porous substrate of 0.2 to 0.6, has a peak shown in a range of 1070 cm^-1 to 1082 cm^-1 in a spectrum by Fourier transform infrared spectroscopy (FT-IR), and has heat shrinkage rates in the machine direction and in the transverse direction of 5% or less as measured after being allowed to stand at 150°C for 60 minutes is provided.

BATTERY ASSEMBLY AND CONTROLLING METHOD OF THE SAME

Resumen de: EP4576331A1

The present disclosure relates to a battery assembly including: a plurality of battery cells; an insertion member (300) positioned between the plurality of battery cells; an inlet (320) formed on one side of the insertion member; and a cover member (200) covering the plurality of battery cells and the insertion member, wherein the insertion member may expanded when a fluid is injected to the inside of the insertion member through the inlet.

APPARATUS FOR MANUFACTURING ELECTRODE ASSEMBLY AND METHOD OF CONTROLLING THE SAME

Resumen de: EP4574724A1

An apparatus for manufacturing an electrode assembly formed in a stack structure of an electrode plate and a separator includes a separator supply unit configured to supply the separator, a folding unit that moves with respect to a stack table to fold the separator on the stack table, a guide unit provided on a movement path of the separator from the separator supply unit to the folding unit to guide movement of the separator, a compensator unit that is movable to compensate for a change in length of the movement path of the separator, and a controller unit configured to control movement of the compensator unit based on structural parameters for a structure of the apparatus and motion parameters for a motion of the folding unit to compensate for the change in length of the movement path of the separator.

CURRENT COLLECTION PLATE AND BATTERY CELL

Resumen de: EP4576406A1

The present disclosure provides a current collection plate and a battery cell. The current collection plate includes: a main body (10); a conductive part (20) connected to the main body (10) of the current collection plate and including a first side (20a) and a second side (20b) opposite to the first side (20a); and an insulating layer (30) covering at least part of the first side (20a) and at least part of the second side (20b).

ELECTRICAL APPARATUS, BATTERY, BATTERY CELL AND ELECTRODE SHEET ASSEMBLY

Resumen de: EP4576409A1

Disclosed in the present application are an electrical apparatus, a battery, a battery cell (1) and an electrode plate assembly (10). The electrode plate assembly (10) comprises an electrode plate (100) and an insulating adhesive tape (200). The electrode plate (100) comprises an electrode plate body (110) and a tab. The main surface of the electrode plate body (110) has a first side edge (112) and a second side edge (113) that are spaced apart from each other along a predetermined spacing direction (D1). The tab is integrally formed with the electrode plate body (110) and protrudes from the first side edge (112) in the spacing direction (D1). The insulating adhesive tape (200) is to be adhered and fixed to the main surface of the electrode plate body (110) and to cover the first side edge (112). The above method can solve the problem of short circuit caused by burrs generated during a tab forming process piercing the separator (20).

A DEVICE FOR GAS-SOLID SEPARATION

Resumen de: EP4574232A1

The present invention provides a corrosion-resistant device for gas-solid separation, includes a feeding inlet, a filter element, a solid outlet, and a gas outlet, wherein the filter element uses corrosion-resistant metal material, and the metal material is nickel, or nickel alloy with a nickel content of 50% or above. The gas-solid separation device of the present invention is suitable to be used in recycling lithium batteries for gas-solid separation.

APPARATUS FOR SEPARATING AND RECYCLING METAL ELEMENTS IN CATHODE MATERIALS OF LITHIUM BATTERIES

Nº publicación: EP4575019A1 25/06/2025

Solicitante:

SHENZHEN HUINENG ENERGY STORAGE MATERIALS ENGINEERING RES CENTER CO LTD [CN]
NATIONAL ENGINEERING RES CENTER OF ADVANCED ENERGY STORAGE MATERIALS SHENZHEN CO LTD [CN]
Shenzhen Huineng Energy Storage Materials Engineering Research Center Co., Ltd,
National Engineering Research Center of Advanced Energy Storage Materials (Shenzhen) Co., Ltd

Resumen de: EP4575019A1

The present invention provides an apparatus for separating and recycling metal elements in cathode materials of lithium batteries, comprising a device for pretreating lithium batteries, configured to obtain a mixture of powders containing positive-electrode materials; a device of acid leaching, configured to obtain leachate; if the to-be-recycled lithium battery contain a lithium iron phosphate battery, the apparatus further comprises a heating furnace for heating the solid products, obtained after acid leaching and solid-liquid filtration, in an oxygen-containing atmosphere; if the to-be-recycled lithium battery contains a ternary lithium battery, the apparatus further comprises a first extraction device for performing extraction on the leachate, wherein diisooctyl phosphate is extraction agent.