Alerta

BATTERY AND ELECTRODE MATERIAL

Resumen de: EP4564495A1

The battery includes a plurality of electrode materials, in which the electrode material includes a first pouch, a first collector, a positive electrode, a separator, a negative electrode, a second collector, and a second pouch in this order, at least one of adjacent electrode materials has at least one of a first opening portion between the first pouch and the first collector or a second opening portion between the second pouch and the second collector, at least the other of the adjacent electrode materials has at least one of a first insertion part by the first collector or a second insertion part by the second collector, and the adjacent electrode materials are joined by at least one of insertion of the first insertion part into the first opening portion or insertion of the second insertion part into the second opening portion; and an electrode material applied to the battery.

METHOD FOR MANUFACTURING ELECTRODE LAMINATE, ELECTROCHEMICAL ELEMENT, AND METHOD FOR MANUFACTURING ELECTROCHEMICAL ELEMENT

Resumen de: EP4564584A1

Provided is an electrochemical device having a low internal resistance and a reduced variation in the internal resistance. Also provided is a method for producing an electrode stacked body that is able to prevent the occurrence of a short circuit during assembly of an electrochemical device, an electrochemical device that includes an electrode stacked body produced by the above production method, and a method for producing the electrochemical device.An electrochemical device in the first aspect of the present invention includes an electrode stacked body including a first electrode, an isolation layer, and a second electrode, and a porous metal layer interposed between the electrode stacked body and a conductive path of an exterior body. The electrode stacked body is pressed against the porous metal layer by a pressing member. The second aspect of the present invention relates to a method for producing an electrode stacked body including a first electrode and/or a second electrode having an electrode mixture layer and a sheet-type current collector. The sheet-type current collector is formed by adjusting the amount of compression of a porous base material to satisfy s - t < a + b, where s represents the thickness of the porous base material before the compression, t represents the thickness of a portion of the porous base material after the compression, which faces the electrode mixture layer, a represents the thickness of the electrode mixture layer, and b represents the t

BATTERY AND ELECTRIC DEVICE

Resumen de: EP4564561A1

A battery (1000) and an electrical device (2000) are provided. The battery (1000) includes at least one cell group (100). The cell group (100) includes two cell rows (10). Each cell row (10) includes at least one cell (1). Each cell (1) is provided with an electrical connection portion (11) at a side of the cell (1) facing the other cell row (10) in the same group (10). Each cell (1) is further provided with a pressure relief portion (12). The pressure relief portion (12) and the electrical connection portion (11) are disposed at different sides of the cell (1).

ELECTRODE ASSEMBLY, BATTERY CELL, BATTERY, AND ELECTRIC DEVICE

Resumen de: EP4564582A1

Provided are an electrode assembly (22), a battery cell (20), a battery (10), and an electric device. The electrode assembly (22) comprises: an electrode sheet (31); and a tab (32), the tab (32) being arranged at the end of the electrode sheet (31) in a first direction (X), the tab (32) being provided with a bent portion (322), and the bent portion (322) being used for providing stretching space for the tab (32). By providing the bent portion (322) on the tab (32), when the electrode assembly (22) expands, the tab (32) can be stretched out from the bent portion (322) to maintain the electrical connection of the tab (32), and the tab (32) is prevented from being cracked or even broken by being pulled due to excessive expansion of the thickness of the electrode assembly (22), thereby improving the reliability of the battery (10).

METHOD FOR PRODUCING MOLDED BODY FOR SHEET-LIKE ELECTRODE

Resumen de: EP4564464A1

Provided is a manufacturing method of a molded body for a sheet-like electrode, including a first step of preparing granules containing one or both of an electrode active material and a conductive auxiliary agent, and a second step of obtaining a mixture of an electrode active material, a conductive auxiliary agent, and an electrolytic solution using the granules prepared in the first step, in which an electrode material film containing the electrode active material, the conductive auxiliary agent, and the electrolytic solution are formed on a support.

METHOD FOR PRODUCING MOLDED BODY FOR SHEET-LIKE ELECTRODES

Resumen de: EP4564463A1

Provided is a manufacturing method of a molded body for a sheet-like electrode, the manufacturing method including: a first step of applying a first material containing an electrode active material and an electrolytic solution onto a support to form a first film of the first material; and a second step of applying a second powder material containing an electrode active material and containing no liquid component onto the first film, in which an electrode material film having a monolayer structure, which is a mixture of the first film and the second powder material, is formed.

METHOD FOR MANUFACTURING MOLDED ARTICLE FOR SHEET-SHAPED ELECTRODE

Resumen de: EP4564462A1

Provided is a manufacturing method of a molded body for a sheet-like electrode, the manufacturing method including a step A of dispersing and arranging, on a support, a plurality of bulk substances of an electrode material which contains an electrode active material and an electrolytic solution and has a concentration of solid components of 20% by volume to 90% by volume; and a step B of combining the plurality of bulk substances dispersed and arranged on the support by a molding member to form an electrode material film on the support.

SEPARATOR FOR LEAD ACID STORAGE BATTERIES, SAID SEPARATOR USING GLASS FIBERS AND THERMALLY FUSIBLE ORGANIC FIBERS

Resumen de: EP4564579A1

Problem To provide a separator (AGM separator) for a lead acid battery, which has a high strength required for a recent separator for a lead acid battery and has a high electrolyte retention function, and in which peeling of a bag-making processed part (sealed part) does not occur when a cycle life test is performed.Solution A separator for a lead acid battery mainly including a micro-glass fiber and a heat-fusible organic fiber, in which when the separator after bag-making processing using ultrasonic sealing is boiled in water for 60 minutes, a peel strength in a sealed part (fused portion) of the separator is 1 N/20 mm or more.

BATTERY PACKAGING MATERIAL

Resumen de: EP4564541A1

Adhesive strength at high temperatures is improved in a battery packaging material using an active energy-curing adhesive. A battery packaging material (1) in which a heat-resistant resin layer (13) is bonded to one side of a barrier layer (11) via a first adhesive layer (12) and a sealant layer (15) is bonded to the other side via a second adhesive layer (14). The first adhesive layer (12) is composed of an adhesive composition including a polyester polyurethane acrylate A and a (meth)acrylate monomer B having an isobornyl group in a mass ratio of A/B = 1/1 to 8/1.

METHOD FOR PRODUCING SOLID ELECTROLYTE, AND SOLID ELECTROLYTE

Resumen de: EP4564376A1

Provided is a method for producing a solid electrolyte, the method including mixing a raw material-containing substance that contains a lithium atom, a phosphorus atom, and a sulfur atom with a solvent to prepare a solution of an intermediate (1), and spraying the intermediate (1) solution using a spray drying apparatus, or spraying the intermediate (1) solution using a spray drying apparatus at a spraying pressure of the spray drying apparatus of 0.01 MPa or more, as method for producing a solid electrolyte, superior in the productivity and giving a sharp particle size distribution, a small median size (D₅₀), and a superior ionic conductivity. Also provided is a solid electrolyte having a prescribed median size (D₅₀) and particle size distribution.

COVER PLATE ASSEMBLY, BATTERY CELL, AND BATTERY PACK

Resumen de: EP4564545A1

A cover plate assembly (100), a battery cell, and a battery pack are provided. The cover plate assembly (100) includes a cover plate body (10) provided with a through hole; an outer conductive member (20) disposed on a side of the cover plate body (10) away from an electrode assembly and including a first metal layer (21), a second metal layer (22), and a third metal layer (23) disposed between the first metal layer (21) and the second metal layer (22). The third metal layer (23) is respectively connected to the first metal layer (21) and the second metal layer (22) to form a first composite layer and a second composite layer. The first composite layer includes a first metal and a third metal. The second composite layer includes a second metal and the third metal.

THERMAL RUNAWAY EXPERIMENT DEVICE AND USE METHOD THEREFOR

Resumen de: EP4564037A1

The present application provides a thermal runaway experimental apparatus and a method for using the same, which belong to the field of battery technology. The thermal runaway experimental apparatus includes a heating mechanism and a cooling mechanism. The heating mechanism has a reaction chamber therein for accommodating a battery cell, the heating mechanism being configured to heat the battery cell to trigger thermal runaway of the battery cell. The cooling mechanism is configured to provide a cooling medium into the reaction chamber to cool the battery cell, such that the thermal runaway of the battery cell is terminated. This thermal runaway experimental apparatus can cool the battery cell and terminate the thermal runaway reaction at any stage or any temperature point during the thermal runaway experiment of the battery cell, thereby enabling the study of the internal reaction mechanism of the battery cell at any stage or any temperature point during the thermal runaway process. This is conducive to reducing the difficulty in revealing the causes of thermal runaway inside the battery cell, and thus enables the targeted discovery and resolution of the problem of thermal runaway in the battery cell, thereby contributing to providing an important theoretical reference for the safety design of the battery cell.

COATED LITHIUM-TRANSITION METAL OXIDE PARTICLES, METHOD FOR PRODUCING SAME, POSITIVE ELECTRODE ACTIVE MATERIAL FOR LITHIUM ION BATTERY, AND LITHIUM ION BATTERY

Resumen de: EP4564479A1

The input-output characteristics of a lithium-ion battery are improved. In coated lithium-transition metal oxide particles, at least a part of the surfaces of lithium-transition metal oxide particles are coated with a copolymer which is represented by the formula (1) and which has a weight average molecular weight of 200,000 to 600,000, and the copolymer is cross-linked by ring opening of an oxetane ring. In the formula (1), m and n represent a number of one or more. R¹ and R² represent a hydrogen atom or a methyl group. R³ represents an alkyl group having one to five carbon atoms. R⁴ represents an alkanediyl group having one to five carbon atoms. R⁵ represents a hydrogen atom or an alkyl group having one to five carbon atoms.

COMPOSITE PARTICLES FOR NON-AQUEOUS SECONDARY CELL ELECTRODE, NEGATIVE ELECTRODE FOR NON-AQUEOUS SECONDARY CELL, AND NON-AQUEOUS SECONDARY CELL

Resumen de: EP4564475A1

Composite particles for a non-aqueous secondary battery electrode contain an electrode active material, a water-soluble polymer, and a binder composition. A particle diameter retention rate of the composite particles expressed by a formula: particle diameter retention rate of composite particles = D50(A) diameter/D50(B) diameter × 100(%) is 70% or more, given that in dry cumulative particle diameter measurement by laser diffraction/scattering, a volume-based median diameter (D50) of the composite particles when dispersing air pressure during measurement is set as 0.25 MPa is taken to be a D50(A) diameter and a volume-based median diameter (D50) of the composite particles when dispersing air pressure during measurement is set as 0.00 MPa is taken to be a D50(B) diameter.

BINDER FOR SECONDARY BATTERY FUNCTIONAL LAYER, SLURRY COMPOSITION FOR SECONDARY BATTERY FUNCTIONAL LAYER, SECONDARY BATTERY FUNCTIONAL LAYER, AND SECONDARY BATTERY

Resumen de: EP4564573A1

Provided is a binder for a secondary battery functional layer that can form a functional layer having excellent heat shrinkage resistance, adhesiveness, and preservation stability. The binder for a secondary battery functional layer contains a particulate polymer including an acidic functional group-containing monomer unit and a reactive functional group-containing monomer unit including a functional group that can react with an acidic functional group. The proportional content of the reactive functional group-containing monomer unit is not less than 7 mass% and not more than 30 mass% when all monomer units included in the particulate polymer are taken to be 100 mass%. A film that is formed of the particulate polymer after accelerated testing has an elastic modulus of 10 MPa or less.

ELECTROCHEMICAL CELL COMPRISING A DEFORMED CAN AND CORRESPONDING PRODUCTION METHOD

Resumen de: EP4564492A1

An electrochemical cell (12) comprising:- a can (14) comprising at least two can faces (24),- a cover (16) fixed to the can (14), the can (14) and the cover (16) defining an interior volume (18),- a stack (22) extending between the two can faces (24) in a first transverse direction (T1), the interior volume (18) comprising a region (26) extending between the stack (22) and the cover (16) in a second transverse direction (T2).Each of the two can faces (24) comprises a first portion (32) facing the stack (22) and defining a plane (P1, P2), and a second portion (34) facing the region (26.) and presenting a local deformation (40) in the first transverse direction (T1) towards the interior volume (18) with respect to the planes (P1, P2).

A BATTERY MODULE, A BATTERY STACK AND A BATTERY COMPARTMENT

Resumen de: EP4564552A1

A stackable battery module (1) comprising an enclosure (10) formed by a top plate (12), a bottom plate (14) and side walls (16). Further, at least one battery cell (22) is at least partially enclosed by the enclosure (10). The enclosure (10) comprises a top flange (24) and a bottom flange (26). The top flange (24) and the bottom flange (26) extend away from the enclosure (10). The top flange (24) and the bottom flange (26) each comprises a mounting hole (28) and a first type of gas vent (30). The first type of gas vent (30) being configured to enable fluid communication through the respective flange (24, 26), and a second type of gas vent (32) is arranged at the first end (18) and/or at the second end (20) of the side walls (16). The second type of gas vent (32) is configured to enable fluid communication through the side walls (16). The disclosure also relates to a stack of battery modules (1) and to a battery compartment (3) comprising the stack of battery modules (1). A vehicle comprising the battery compartment (3) is also disclosed.

A THERMAL MANAGEMENT FILM FOR DETECTING AND/OR FOR REGULATING A TEMPERATURE OF AN ELECTRICAL DEVICE

Resumen de: EP4563956A1

The present disclosure relates to a thermal management film (200) for detecting and/or for regulating a temperature of an electrical device comprising at least one surface. Thermal management film (200) is arranged to be abutted against the surface of the electrical device. The thermal management film (200) comprises:- a substrate (201),- a temperature sensing arrangement (210) arranged on the substrate (201) and configured to detect a temperature associated parameter at one or more areas on the film (200), and- a temperature regulating arrangement (220) arranged on the substrate (201) and configured to regulate the temperature distribution across the film (200) by selectively generating heat at one or more areas of said film (200) and/or by selectively generating (a) cooling flux(es) at one or more areas of said film (200).

METHOD FOR ASSEMBLING A BATTERY CELL

Resumen de: EP4564491A1

L'invention concerne un procédé d'assemblage (10) d'un boîtier (12) d'une cellule de batterie, le boîtier comprenant un godet (14) présentant une ouverture et un couvercle (16) destiné à fermer l'ouverture du godet (14), le procédé d'assemblage (10) étant caractérisé en ce qu'il comprend au moins les étapes suivantes de : (1) positionnement du couvercle (16) et du godet (14) dans une chambre à vide (20) ; (II) application d'une pression prédéterminée dans un espace intérieur (24) de la chambre à vide (20), la pression prédéterminée étant strictement inférieure à la pression atmosphérique ; (III) scellement du couvercle (16) avec le godet (14) par des moyens de scellement (26) ; (IV) rétablissement de la pression atmosphérique dans l'espace intérieur (24) de la chambre à vide (20).

BOX BODY, BATTERY AND VEHICLE

Resumen de: EP4564556A1

The present application provides a box body, a battery and a vehicle. The box body is used for the battery. The box body includes a bearing plate and a reinforcing beam. The bearing plate is configured to fix a battery cell. The reinforcing beam is arranged on a side of the bearing plate facing away from the battery cell and is fixed to the bearing plate. In the present application, the reinforcing beam is arranged on a side of the bearing plate facing away from the battery cell, such that the bearing plate has improved compression resistance, and the deformation thereof is alleviated when the battery is subjected to an external impact, thereby reducing the risk that the bearing plate presses the battery cell and causes damage thereto, and improving the safety of the battery.

NEGATIVE ELECTRODE ACTIVE MATERIAL FOR NONAQUEOUS ELECTROLYTE SECONDARY BATTERY, AND METHOD FOR SAID PRODUCING NEGATIVE ELECTRODE ACTIVE MATERIAL

Resumen de: EP4564474A1

The present invention is a negative electrode active material for a non-aqueous electrolyte secondary battery containing negative electrode active material particles in which the negative electrode active material particles include silicon compound particles containing a silicon compound (SiOx: 0.5≤x≤1.6), in which the silicon compound particles are a negative electrode active material for a non-aqueous electrolyte secondary battery containing a Li compound, the negative electrode active material particles are at least partially coated with a carbon coating, an amount of the carbon coating on the negative electrode active material particles relative to a total amount of the silicon compound particles and the carbon coating is larger than 0 mass% and 1 mass% or less, the carbon coating contains a coating composed of at least any one of a compound having O-C=O bond and a compound having C-C bond, and the silicon compound particles contain crystalline Li2SiO3 as the Li compound. Thereby, the negative electrode active material for a non-aqueous electrolyte secondary battery having a large capacity, excellent cycle characteristics, and first-time efficiency is provided.

NEGATIVE ELECTRODE ACTIVE MATERIAL

Resumen de: EP4564471A1

The present invention relates to a negative electrode active material which contains Si particles, first particles and second particles, wherein: the volume expansion ratio of the first particles due to Li absorption is 0-80%; and the volume expansion ratio of the second particles due to Li absorption is 100-300%.

NEGATIVE ELECTRODE ACTIVE MATERIAL FOR SODIUM-ION SECONDARY BATTERY

Resumen de: EP4564473A1

Provided is a negative electrode active material for a sodium-ion secondary battery that exhibits stable battery characteristics when repeatedly charged and discharged. A negative electrode active material for a sodium-ion secondary battery contains: an amorphous phase containing SiO₂; and a Fe-Sn-based alloy.

NONAQUEOUS ELECTROLYTE SECONDARY BATTERY POSITIVE ELECTRODE AND NONAQUEOUS ELECTROLYTE SECONDARY BATTERY

Resumen de: EP4564448A1

A nonaqueous electrolyte secondary battery positive electrode (11) is characterized by comprising a positive electrode current collector (30) and a positive electrode mixture layer (31) disposed on the positive electrode current collector (30), and is characterized in that: the positive electrode current collector (30) has a positive electrode current collector exposed part (30a) in which the positive electrode mixture layer (31) is not disposed; the positive electrode mixture layer (31) has a body part (31a) and an end part (31b) that is provided closer to the positive electrode current collector exposed part (30a) than the body part (31a) is and is thinner than the body part (31a); the body part (31a) contains a positive electrode active material having a unimodal particle size distribution; and the end part (31b) contains a positive electrode active material having a multimodal particle size distribution.

A METHOD OF DETERMINING ONE OR MORE OPERATING PARAMETERS OF AN ELECTRICAL DEVICE

Nº publicación: EP4564516A1 04/06/2025

Solicitante:

VOLVO TRUCK CORP [SE]
VOLVO TRUCK CORPORATION

Resumen de: EP4564516A1

The present disclosure relates to a computer-implemented method of determining one or more operating parameters of an electrical device comprising by means of a multi-parameter sensing film (200, 300). It also relates to a battery module and a battery system comprising the sensing film. The sensing film comprises:- a substrate (201,301),- one or more sensing elements (210, 310a-310d) arranged on said substrate, wherein said one or more sensing elements are formed by at least one responsive material which is configured to exhibit changes in electrical resistance in response to changes in said operating parameters,- a plurality of monitoring circuits (204a-204d, 304a-304d) arranged at predefined monitoring positions (202a-204d, 302a-302d) that are spaced apart from each other over said substrate, said monitoring circuits being configured to monitor the electrical resistance of said at least one responsive material at monitoring positions,the method comprising:- detecting (S1) electrical resistances of said at least one responsive material at monitoring positions, and- determining (S2) the one or more operating parameters at said monitoring positions by using information of the detected electrical resistances.