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SILICON COMPOSITE ANODE MATERIALS FOR ENERGY STORAGE DEVICES, AND METHODS THEREOF

Resumen de: MX2025003012A

Methods for forming dry composite material for an energy storage device electrode are provided. The method may comprise forming a slurry by mixing a solvent, a silicon active material, a carbon active material, and a carbon additive; and forming the dry composite material comprising the silicon active material, the carbon active material, and the carbon additive by removing the solvent. The carbon additive, silicon active material and carbon active material are substantially homogeneously dispersed in the dry composite material. The dry composite material may be used to form a dry electrode film in dry fabrication processes.

SILICON-BASED NEGATIVE ELECTRODE ACTIVE MATERIAL AND PREPARATION METHOD THEREFOR, SECONDARY BATTERY, AND ELECTRIC DEVICE

Resumen de: EP4597628A1

A silicon-based negative electrode active material, comprising M2Si2O5 and M2SiO3, wherein M comprises one or more alkali metal elements; in an XRD pattern of the silicon-based negative electrode active material, a diffraction angle 2θ has a first diffraction peak in the range of 24°-25°, and the half-peak width of the first diffraction peak is βA; the diffraction angle 2θ has a second diffraction peak in the range of 26°-27°, and the half-peak width of the second diffraction peak is βB; and the silicon-based negative electrode active material meets the equation: 1.0 ≤ β A/ β B ≤ 2.5.

AUTOMATIC ELECTRODE PLATE READING APPARATUS FOR SECONDARY BATTERIES

Resumen de: EP4597617A1

Disclosed is an automatic electrode plate reading apparatus for secondary batteries which, when an arm descends, vacuum-adsorbs and grips a barcode part of a standby electrode plate, and then rises in the state in which an EPC sensor and a replacement preparation core move backwards, a first roller moves to the right, a third roller descends and second rollers rise, automatically connects the electrode plate vacuum-adsorbed and gripped by the arm to the replacement preparation core so as to be kept taut in the state in which the first roller moves to the left, the second rollers descend, the third roller rises and the EPC sensor and the replacement preparation core move forwards. The automatic electrode plate reading apparatus includes for secondary batteries includes a standby electrode plate (1) prepared in a roll form to replace an electrode plate around a core and rotatably installed, an EPC sensor (2), a first roller (3) configured to move left when an arm (8) descends, and to move right to push the standby electrode plate (1) when the arm (8) rises, second rollers (4) rotatably installed to place the standby electrode plate (1) at a regular position, and a third roller (6) installed below the second rollers (4) and configured to descend before the arm (8) descends and to rise so as to keep the standby electrode plate (1) taut after the arm (8) rises, and, in the state in which the arm (8) descends by an arm drive motor (11), detects a barcode on the standby electrode pl

ADHESIVE TAPE ATTACHING MECHANISM, ADHESIVE TAPE ATTACHING DEVICE, AND BATTERY PRODUCTION LINE

Resumen de: EP4596477A1

This application relates to an adhesive tape application mechanism (100), an adhesive tape application apparatus (1000), and a battery production line. The adhesive tape application mechanism (100) includes: an assembly base (10); a central adhesive tape suction assembly (20) capable of adsorbing and applying an adhesive tape (3000) to a first surface (2100) of a workpiece to be adhered; end adhesive tape suction assemblies (30) arranged on two opposite sides of the central adhesive tape suction assembly (20), where each of the end adhesive tape suction assemblies (30) includes an end driving member (31) and an end adhesive tape suction member (32) in transmission connection with the end driving member (31); and an end sliding assembly (40), disposed on the assembly base (10), where each of the end adhesive tape suction members (32) is configured to be driven by the end driving member (31) connected thereto, guided by the end sliding assembly (40) to slide toward the central adhesive tape suction assembly (20) for closing, and is capable of adsorbing, bending, and applying the adhesive tape (3000) to a second surface (2200) and a third surface (2300) of the workpiece to be adhered, respectively. The adhesive tape application mechanism (100), the adhesive tape application apparatus (1000), and the battery production line provided by this application can alleviate the problem caused by unstable pressing force resulting from elastic deformation, thereby enhancing the reliability

BATTERY AND ELECTRICAL APPARATUS

Resumen de: EP4597715A1

This application relates to a battery (100) and an electrical device. The battery (100) includes: a shell structure (10); and a battery cell (20), including a pressure relief structure (24). The shell structure (10) includes a first sidewall (14) oriented toward the pressure relief structure (24). A part of the first sidewall (14) is recessed toward outside of the shell structure (10) to form a recessed structure (141). An orthographic projection of the pressure relief structure (24) toward the first sidewall (14) at least partially falls within the recessed structure (141). A part of the first sidewall (14) is recessed outward to form the recessed structure (141), and the orthographic projection of the pressure relief structure (24) toward the first sidewall (14) at least partially falls within the recessed structure (141), and therefore, a distance between the pressure relief structure (24) and the first sidewall (14) can be increased, and a cushion space (1411) between the pressure relief structure and the first sidewall (14) can be enlarged. In this way, when the pressure relief structure (24) relieves pressure, an instantaneous heat flow impact force can be cushioned in the cushion space (1411), thereby reducing a force exerted on the fireproof structure (40) and the shell structure (10), avoiding damage to the fireproof structure (40) and the shell structure (10), and eliminating a threat to the external environment.

ELECTRODE MATERIAL WINDING APPARATUS

Resumen de: EP4597651A1

The present specification relates to an embodiment of an electrode material winding apparatus, in which an electrode material is processed so that an electrode tab is not disposed in an impregnation region into which an electrolyte can be injected, and the electrode material is wound so that the electrode tab is arranged only in a specific region excluding the impregnation region, thereby winding the electrode material such that the electrolyte is injected through the impregnation region.

CURRENT COLLECTORS FOR BATTERY ELECTRODES

Resumen de: WO2024073512A2

A device can include a battery electrode that comprises a substrate having one or more polymeric materials and a layer disposed on the substrate. The layer can include one or more conductive materials, have a thickness no greater than 12 micrometers, and have a porosity of at least 5% by volume. Additionally, an electrode layer including a seed layer can comprise a number of fused nanoparticles. The electrode layer can also include a lithium metal layer disposed on the number of fused nanoparticles. The electrode layer can be formed by producing, on a polymeric current collector layer, a seed layer that includes nanoparticles. A formulation to form the seed layer can include nanoparticles having ligands and then removing the ligands using one or more thermal and/or one or more chemical treatment processes. The seed layer can be electrically conductive, acting as the current collector when disposed on a polymeric substrate.

BATTERY TRAY ASSEMBLY, BATTERY PACK AND VEHICLE

Resumen de: EP4597709A1

A battery tray assembly (10), a battery pack (1) and a vehicle. The battery tray assembly (10) comprises: a tray (11) and electrically conductive members (12), the tray (11) forming a mounting space for accommodating battery modules (20) and insulating the battery modules (20) from each other, and the tray (11) being provided with detection ports (111); and the electrically conductive members (12) are at least partly arranged inside the tray (11) and are electrically connected to preset potential points, and the electrically conductive members (12) are at least partly exposed at the detection ports (111).

BATTERY AND ELECTRIC DEVICE

Resumen de: EP4597708A1

A battery (1000) and an electrical device (2000) are disclosed. The battery (1000) includes: a plurality of structural components (10), where the plurality of structural components (10) are arranged along a first direction (F1), at least one structural component (10) is a battery row (20), the battery row (20) includes at least one battery cell (21), the battery cell (21) includes a first surface (211), and the first surface (211) is provided with an electrical connection portion (22) and the first surface (211) is oriented toward an adjacent structural component (10); and a support piece (40), where the support piece (40) is disposed between the battery row (20) and the adjacent structural component (10) and is configured to space the first surface (211) and the adjacent structural component (10) apart by a fixed clearance.

RECHARGEABLE BATTERY WITH SHAPE MEMORY LAYER FOR ENHANCED SAFETY

Resumen de: WO2024073496A1

A battery cell may include a first electrode coupled with a first current collector, a second electrode coupled with a second current collector, and a separator interposed between the first electrode and the second electrode. The battery cell may further include a current controller including one or more shape memory effect (SME) materials in a deformed conformation. The shape memory effect (SME) materials may recover at least partially an original conformation of the shape memory effect (SME) materials in response to one or more stimuli. The current controller may have a lower conductivity when the shape memory effect (SME) materials are in the original conformation than when the shape memory effect (SME) materials are in the deformed conformation such that the shape memory effect (SME) materials recovering the original conformation reduces current flow within the battery cell.

CARBON DIOXIDE SATURATED ELECTROLYTES FOR ENERGY STORAGE DEVICE, AND METHODS THEREOF

Resumen de: CN119948642A

Provided herein are electrolyte additives and formulations for energy storage devices having improved performance. The electrolyte comprises at least one carbon dioxide source dissolved in a fluorinated solvent. The improved performance may be achieved as improved cycling stability.

DRY FRIABLE FLUOROPOLYMER AGGLOMERATE COMPOSITIONS FOR USE AS BINDER IN LITHIUM-ION SECONDARY BATTERY ELECTRODES

Resumen de: MX2025003265A

Fluoropolymer compositions for use as binder in a lithium-ion secondary battery electrodes are described, as well as methods of their manufacture, and electrode compositions and lithium-ion secondary batteries utilizing such. The fluoropolymer compositions are dry friable agglomerates manufactured by cocoagulation of aqueous dispersions of a first tetrafluoroethylene polymer having a melt creep viscosity of at least about 0.5 x 1011 poise, and a second polymer different from the first polymer. These fluoropolymer compositions afford lithium-ion secondary batteries with improved performance, through such as improved loading of electrodes, and stability of PTFE binder in the anode, and result in lithium-ion secondary batteries having improved performance, such as improved capacity and improved reversible capacity retention.

LITHIUM BATTERY AND ELECTRICAL DEVICE

Resumen de: EP4597676A1

A lithium battery and an electrical device. The lithium battery comprises a positive pole piece, a negative pole piece, and an electrolyte. The negative pole piece comprises a negative current collector and a negative active material layer arranged on the surface of the negative current collector. The negative active material layer comprises a negative active material. The single-sided surface density of the negative electrode active material layer is A mg/cm<2>, the thickness of the negative electrode active material layer is D µm, the specific surface area of the negative electrode active material is S m<2>/g, and the viscosity of the electrolyte at 25±2°C is δ mPa·s. The negative pole piece and the electrolyte satisfy the following relational expression: 1≤(δ×A<2>)/(D×S)≤15.

VEHICLE

Resumen de: EP4596281A1

A vehicle (100). The vehicle (100) comprises a vehicle body (30), a battery (10), and a sealing assembly (20). The sealing assembly (20) is arranged between the vehicle body (30) and the battery (10). The sealing assembly (20) comprises a sealing plate (201) and a sealing member (202). The sealing plate (201) is fixed and hermetically connected to the battery (10), and the surface of the sealing plate (201) distant from the battery (10) has a mounting plane (203). The sealing member (202) is arranged on the mounting plane (203), and the sealing member (202) is sandwiched between the vehicle body (30) and the sealing plate (201), wherein the vehicle body (30) and the battery (10) jointly define a passenger compartment (40), or the vehicle body (30) and the sealing assembly (20) jointly define a passenger compartment (40), so that unreliable sealing between the vehicle body (30) and the battery (10) is prevented, thereby reducing the water seepage problem of the vehicle (100) and improving the product quality of the vehicle (100).

THERMAL MANAGEMENT SYSTEM AND VEHICLE HAVING SAME

Resumen de: EP4596272A1

A thermal management system and a vehicle having same. The thermal management system comprises a compressor, a first heat exchanger and a heat exchange assembly; an air discharge port of the compressor is connected to the heat exchange assembly; a first port of the first heat exchanger is connected to an air inlet of the compressor; a second port of the first heat exchanger is connected to the heat exchange assembly. The heat exchange assembly comprises a first heat exchange plate and a second heat exchange plate which are arranged in parallel, and the first heat exchange plate and the second heat exchange plate are separately used for adjusting the temperature of a battery module.

BATTERY PACK COMPRISING A PLURALITY OF RECHARGEABLE BATTERIES WITH INTEGRATED CONNECTIVITY, ALLOWING ACQUISITION AND USE OF DATA DURING OPERATION

Resumen de: WO2024068762A1

The invention discloses a battery pack comprising a plurality of rechargeable battery cells that are mechanically and electrically connected, and also a measuring means for measuring at least one parameter of the battery and a telecommunications module, the components of said pack being integrated into a casing having power connection terminals, characterized in that - the telecommunications module comprises a controller that controls the reception and transmission of digital data between a server and the battery measuring means via the low-frequency 4G network, either using a CAT-M1 protocol or with a 2G fallback circuit, and - in that the telecommunications module comprises • a rewritable non-volatile memory for recording at least part of the computer code executed by the computer, and at least some of the digital parameters computed periodically on the basis of the data delivered by the telecommunications module • a RAM memory for recording the digital parameters computed periodically on the basis of the data delivered by the telecommunications module in a ring buffer and - in that the telecommunications module comprises a circuit for controlling the activation of the telecommunications module a) periodically so as to transmit the parameters delivered by said measuring means, b) in the event of detection of a signal transmitted by the server so as to update the computer code recorded in a memory of the measuring means, and c) when the output voltage of said rechargeabl

METHOD FOR REMOVING METAL AND METHOD FOR RECOVERING METAL

Resumen de: WO2024071147A1

Provided are a method for removing at least one metal that can effectively remove metals from lithium ion battery waste, and a method for recovering metals. A method for removing at least one metal from lithium ion battery waste, wherein the lithium ion battery waste has a cathode material with cathode-derived metals adhering onto a cathode current collector containing aluminum, the aluminum being a metal to be removed, wherein the method includes, in any order: a crushing step of crushing the lithium ion battery waste and separating at least a part of the cathode-derived metals from the cathode current collector; and an alkali separation step of separating at least a part of the cathode-derived metals from the cathode current collector by bring the lithium ion battery waste into contact with an alkaline solution to dissolve the aluminum, wherein the method further includes, after the crushing step, a sieving step of sieving the lithium ion battery waste into a material on sieve and a material under sieve containing the cathode-derived metals separated from the cathode current collector in the crushing step, and wherein, when the sieving step is performed before the alkali separation step, at least a part of the material on sieve obtained in the sieving step is subjected to the alkali separation step.

LITHIUM-ION BATTERY AND ELECTROCHEMICAL DEVICE COMPRISING SAME

Resumen de: EP4597667A1

A lithium-ion battery includes an electrolytic solution and a negative electrode plate. The electrolytic solution includes vinylene carbonate and fluoroethylene carbonate. The negative electrode plate includes a negative active material. An OI value of the negative active material is a. Based on a weight of the electrolytic solution, a weight percent of the vinylene carbonate is b%, and a weight percent of the fluoroethylene carbonate is c%; and a, b, and c satisfy: 0.3 ≤ a/(b + c) ≤ 6; 0.02 ≤ b + c ≤ 10; and 0.1 < b/c < 3.

NEGATIVE ELECTRODE ACTIVE MATERIAL, NEGATIVE ELECTRODE SHEET COMPRISING SAME, ELECTROCHEMICAL DEVICE AND ELECTRIC DEVICE

Resumen de: EP4597630A1

This application provides a negative active material, a negative electrode plate containing same, an electrochemical device, and an electrical device. The negative active material includes a hard carbon material. The hard carbon material includes a plurality of micropores and an average delithiation potential vs Li/Li⁺ of the hard carbon material is 0.15 V to 0.40 V using metallic lithium as a counter electrode.

BATTERY SELF-HEATING CIRCUIT, AND VEHICLE

Resumen de: EP4597690A1

A battery self-heating circuit, comprising a first battery group, a second battery group, a first capacitor, a second capacitor, multiple phases of bridge arms, and multiple phase of windings, which correspond to the multiple phases of bridge arms on a one-to-one basis, wherein each phase of winding is connected to the midpoint of a corresponding bridge arm; a negative electrode of the first battery group is connected to a positive electrode of the second battery group, and the negative electrode of the first battery group and the positive electrode of the second battery group are connected to a neutral point of the multiple phases of windings; a positive electrode of the first battery group is connected to a first bus terminal of the multiple phases of bridge arms, and a negative electrode of the second battery group is connected to a second bus terminal of the multiple phases of bridge arms; and a first end of the second capacitor is connected to a second end of the first capacitor, the first end of the second capacitor and the second end of the first capacitor are connected to the neutral point of the multiple phases of windings, a second end of the second capacitor is connected to the negative electrode of the second battery group, and a first end of the first capacitor is connected to the positive electrode of the first battery group.

CELL BATTERY, BATTERY PACK, AND ELECTRICAL DEVICE

Resumen de: EP4597693A1

Provided are a cell battery (100), a battery pack, and an electricity-consumption device. The cell battery includes: a housing (10); a first end cover (100a) provided at an end of the housing (10), the first end cover (100a) including a first base cover (1a) and a first explosion-proof valve (20) mounted at the first base cover (1a); and a second end cover (100b) provided at the other end of the housing (10), the second end cover (100b) including a second base cover (1b) and a second explosion-proof valve (30) mounted at the second base cover (1b).

MODULAR AND EXSPANDABLE POWER DISTRIBUTION UNIT

Resumen de: WO2024069356A1

High voltage modular power distribution unit for electric or hybrid vehicles, the modular power distribution unit being equipped with two or more base electric modules (1) mechanically connected to each other, the base electric module (1) having: - at least one input port connected to an electric power source, - at least one output port connected to an electric user, - a plurality of electric cables and a first plurality of electric connection bus bars, and - a base structure, provided with a plurality of mechanical connection elements, wherein the two or more base electric modules (1) are electrically connected to each other by means of a second plurality of intermodular bus bars (15).

DEVICE AND METHOD FOR GENERATING AN ELECTRODE STACK WITH FLAT ELECTRODE ELEMENTS

Resumen de: CN119968329A

The invention relates to a device (1) for producing an electrode stack (2) with planar electrode elements (3). The device (1) comprises a stacking wheel (10) which is rotatably mounted about a stacking wheel axis (11) and has a plurality of stacking wheel fingers (12) which define respective intermediate spaces (13) for receiving the electrode elements (3); and a scraping unit (20) which is designed to sequentially remove the electrode elements (3) from the respective intermediate spaces (13) by cooperating with a rotational movement (14) of the stacking wheel (10) about the stacking wheel axis (11). The device comprises a receiving unit (30) for sequentially receiving the electrode elements (3) removed from the intermediate space (13). The receiving unit (30) comprises a base structure (31) on which the electrode elements (3) received in the receiving unit (30) can be stacked, and a limiting element (32) which forms a stop for the electrode elements (3) received in the receiving unit (30) and is arranged stationary with respect to the stacking wheel axis (11).

BATTERY TEMPERATURE MANAGEMENT

Resumen de: CN119923744A

A battery and thermal management system (100; 200); 300); 400, 400; 500), having a battery (104; 204); 304, 304; 404, 404; 504) and a heat transfer arrangement (102; 202); 302; 402, 402; 502). An electrical terminal extends from each cell in the battery, and an adjacent pair of terminals (112; 212, 212; 324; 324; 410, 410; 512) are electrically connected together. The heat transfer arrangement has an inlet channel (120; 310); 420); 520), an outlet channel (122; 312; 312; 414; 414; 522) and a plurality of heat transfer channels (124; 314, 314; 416) is provided. The heat transfer channel (124; 314, 314; 416; 416; 514) is defined between the respective inflow wall (126; 330, 330; 426; 426; 518) and an outflow wall (128; 332; 332; 428; 428; 520) and between the inlet channel (120; 310); 412) and the outlet channel (122; 312; 312; 414). In each heat transfer channel (124) there is a permeable barrier (130; 316; 316; 418, 418; 516), the permeable barrier (130; 316; 316; 418, 418; 516) is inclined such that it is positioned in the heat transfer channel (124; 314, 314; 416; 416; 514) farthest from the inflow wall (126; 330, 330; 426; 426; 518), and in which the heat transfer channel (124; 314, 314; 416; 416; 514) at a second end closest to the inflow wall (126; 330, 330; 426; 426; 518) is provided. Each permeable barrier (130; 316; 316; 418, 418; 516) along the permeable barrier (130; 316; 316; 418, 418; 516) and the length of the terminal (112; 212, 212; 324; 324; 410, 410; 512) of

BATTERY PACK AND ELECTRIC DEVICE

Nº publicación: EP4597728A1 06/08/2025

Solicitante:

XIAMEN AMPACK TECH LIMITED [CN]
Xiamen Ampack Technology Limited

Resumen de: EP4597728A1

This application provides a battery pack (100) and an electric device having the battery pack (100). The battery pack (100) includes a cell assembly (10) and a connecting member (20). The cell assembly (10) includes M cells (11) stacked along a first direction (X). Each cell (11) includes a cell housing (111), an electrode terminal (113), and an electrode assembly (112) disposed within the cell housing (111). The connecting member (20) includes N conductive sheets (23) spaced apart. The electrode terminal (113) is connected to the conductive sheet (23). Electrode terminals (113) of adjacent cells (11) are arranged in a non-overlapping manner in the first direction (X), reducing the risk of short circuits between adjacent electrode terminals (113). The electrode terminal (113) is connected to the electrode assembly (112) and extends out from the cell housing (111). Along the first direction (X), a projection of a portion, located outside the cell housing (111), of an electrode terminal (113) of any one of the cells (11) is separated from a projection of a portion, located outside the cell housing (111), of an electrode terminal (113) of an adjacent cell (11) in a second direction (Y). The second direction (Y) is perpendicular to the first direction (X), which is conducive to the connection of the electrode terminals (113) to other conductive members.