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1718
resultados
Última actualización
03/10/2025 [07:23:00]
Resultados 1000 a 1025 de 1718
Resumen de: EP4621083A1
The purpose of the present disclosureis to provide a method for recovering lithium carbonate from cathode material of wasted lithium-ion batterywhere an environment friendly process is applied to improve the leaching rate of lithium.In order to achieve the purpose, the method includes steps of: (a) forming a pulp by adding a lithium iron phosphate (LiFePO<sub>4</sub>) cathode active material of the wasted lithium-ion battery to water; (b) introducing a reducing agent solution and carbon dioxide gas into the pulp to perform aqueous leaching, and then separating a solid-phase material from a liquid phase containing lithium carbonate (Li<sub>2</sub>CO<sub>3</sub>); and (c) obtaining the lithium carbonateby crystallizing a solution obtained from the liquid phase containing the lithium carbonate.
Resumen de: EP4621967A1
A battery cell, a battery, and an electric device are provided, relating to the field of batteries. The battery cell includes a casing, and the casing has a wall portion. The wall portion includes a weakened portion, and the weakened portion is configured to be ruptured when the battery cell releases internal pressure. An outer surface of the wall portion has a center point. A minimum distance between a projection of the weakened portion on the outer surface of the wall portion and the center point is denoted as a, a minimum radial dimension of the outer surface of the wall portion is denoted as A, and the two satisfy: a ≧ 0.3A. The radial direction refers to a direction passing through the center point. The weakened portion is farther from the center point and closer to an edge of the wall portion. A position on the wall portion near the edge thereof, compared to a position near the center thereof, has greater rigidity, stronger resistance to deformation, and stronger fatigue resistance. Positioning the weakened portion at the position near the edge of the wall portion makes the weakened portion less prone to fatigue failure under gas pressure, which helps to reduce the risk of the weakened portion opening prematurely, enabling the battery cell to operate normally.
Resumen de: EP4621959A2
A wireless earphone comprises a housing, a semiconductor device package disposed in a first space of the housing, a battery covered by the housing, and a speaker disposed in a second space of the housing different from the first space. The battery is arranged along a first axis of the wireless earphone. The housing has a first surface extending downwardly from a first end of the wireless earphone to a bottom end of the housing. The battery and the speaker are arranged along a second axis of the wireless earphone substantially perpendicular to the first axis. The first surface of the housing overlaps the second space but does not overlap the first space in a direction along the second axis.
Resumen de: EP4621884A2
Disclosed (or Provided) are a negative electrode for a secondary battery, including: a current collector; a first negative electrode active material layer provided on the current collector; and a second negative electrode active material layer provided on the first negative electrode active material layer, in which at least one of the first and second negative electrode active material layers includes a lithium-substituted carboxymethyl cellulose, wherein the first negative electrode active material layer comprises a carbon-based active material, and wherein only the second negative electrode active material layer comprises a silicon-based active material.
Resumen de: EP4622052A2
Disclosed is an apparatus and method for managing an Open Circuit Voltage (OCV)-State Of Charge (SOC) profile of a battery. The apparatus according to the present disclosure includes a storage means to store a plurality of OCV-SOC profiles having an overlapping zone in which the OCV-SOC profiles overlap in a predetermined SOC range; and a control means coupled to the storage means. The control means is configured to calculate a partial capacity of the battery in the SOC range of the overlapping zone during charging or discharging of the battery, determine a reduction ratio of the current partial capacity to the partial capacity of the battery at Beginning Of Life (BOL), select the OCV-SOC profile corresponding to the reduction ratio among the plurality of OCV-SOC profiles, change the current OCV-SOC profile to the selected OCV-SOC profile, and control the charge or discharge of the battery using the changed OCV-SOC profile.
Resumen de: EP4621859A1
Provided is a method of manufacturing a secondary battery according to example embodiments. The method includes: coating an electrode sheet, which is unwound from an electrode roll, with an electrode slurry to form a plurality of coated lanes, in which there are a plurality of uncoated parts between the plurality of coated lanes; and forming a plurality of datum points on the electrode sheet, in which each of the plurality of datum points includes a first symbol indicating an orientation of the datum points and a second symbol indicating a corresponding coated lane among the plurality of coated lanes.
Resumen de: EP4621895A1
A method for manufacturing a secondary battery, comprises electrically connecting a first current collector plate to the first electrode plate of an electrode assembly including: a first electrode plate; a second electrode plate; and a separator between the first electrode plate and the second electrode plate, comprising a separator pressing allowance space and a part that is not pressed even when pressed; and pressing the first current collector plate in the direction of the electrode assembly by a set pressing amount to press at least a portion of the separator pressing allowance space of the separator that protrudes outward from the electrode assembly relative to the first electrode plate, wherein the set pressing amount may be set based on a length of an initial gap between the first current collector plate and the separator and a length of an initial separator pressing allowance space between the separator and the first electrode plate.
Resumen de: EP4620872A1
Disclosed are a liquid injection system for a battery and a transfer device thereof. The liquid injection system includes a rotatable tumplate (1), a fixture (2) for carrying a battery and a transfer device (3). A plurality of mounting regions (1a) are arranged on the turnplate (1), and the mounting regions (1a) are arranged at intervals in a circumferential direction of the tumplate (1). One of the turnplate (1) and the fixture (2) is provided with a first plug-in slot (2a), and the other is provided with a first plug-in piece. The first plug-in piece is in plug-in fit with the first plug-in slot (2a) in a height direction of the fixture (2) so that the fixture (2) is detachably mounted in the mounting region (1a). The fixture (2) may move upward to be separated from the tumplate (1) under the action of an external force, and the tumplate (1) is rotated to drive the fixture (2) to circulate in the circumferential direction of the tumplate (1). The transfer device (3) includes a base (31) and a first jacking mechanism (32) arranged on the base (31). The first jacking mechanism (32) is configured to drive the fixture (2) to move in the height direction of the fixture (2) so that the fixture (2) is assembled to the turnplate (1) or separated from the turnplate (1).
Resumen de: EP4621977A1
A battery module according to an embodiment of the present disclosure includes a battery cell stack in which a plurality of battery cells is stacked, a module case for accommodating the battery cell stack, and one or more busbars for electrical connection of the battery cells, wherein electrode leads of the battery cells are movably coupled to the busbars. The battery module according to an embodiment of the present disclosure has the effect of relieving tension applied to a battery cell since electrode leads of the battery cell are movably coupled to a busbar.
Resumen de: EP4621879A1
A positive electrode sheet material, a positive electrode sheet, and a battery are provided. The positive electrode sheet material includes a positive active material, a conductive agent, and a binder. The positive active material includes manganese dioxide having a specific surface area in a range of 10 g/cm<sup>2</sup> to 26 g/cm<sup>2</sup>. The conductive agent includes a first conductive agent having a specific surface area in a range of 10 g/cm<sup>2</sup> to 60 g/cm<sup>2</sup>.
Resumen de: EP4620910A1
Modified carbon nanotubes, A method for preparing the same, a negative electrode slurry, and a battery are provided. The method includes: carboxylating carbon nanotubes; adding the carboxylated carbon nanotubes in a first mixed acid solution to obtain first inner wall-carboxylated carbon nanotubes; adding the first inner wall-carboxylated carbon nanotubes in a second mixed acid solution to obtain second inner wall-carboxylated carbon nanotubes; and mixing the second inner wall-carboxylated carbon nanotubes and a polyethylene glycol to obtain the modified carbon nanotubes.
Resumen de: EP4622291A1
A core module (1) and an earphone (100). The core module (1) comprises: a housing assembly (10), a battery assembly (20), and a driving assembly (30), wherein a first accommodating space (12Ia) and a second accommodating space (122a) are formed in the housing assembly (10); the battery assembly (20) is accommodated in the first accommodating space (12Ia) in a first preset assembly direction (Z1), and the driving assembly (30) is accommodated in the second accommodating space (122a) in a second preset assembly direction (Z2), the first preset assembly direction (Z1) being set at an acute angle relative to the second preset assembly direction (Z2); and a first limiting portion (1211) is provided in the first accommodating space (121a), the projections of the first limiting portion (1211) and the battery assembly (20) on the cross-section perpendicular to the first preset assembly direction (Z1) do not overlap each other, and the first limiting portion (1211) is used for limiting the battery assembly (20). In this way, the stability of connection between the battery assembly (20) and the housing assembly (10) can be effectively improved, thereby effectively preventing the battery assembly (20) and the housing assembly (10) from moving relative to each other and exacerbating the vibration of the earphone (100) during operation, thus effectively improving the sound quality of the earphone (100).
Resumen de: EP4620728A1
A battery system in an electric vehicle includes: a main battery; a battery management device that controls power supply from the main battery to be blocked when an abnormality has occurred in one or more components included in the electric vehicle; and an auxiliary battery provided separately from the main battery and that supplies power to one or more components provided in a cooling system that cools the main battery.
Resumen de: EP4621860A1
An electrode plate, a preparation method therefor, a battery cell, a battery, and a power consuming apparatus are provided, and belong to the field of battery technologies. The electrode plate includes a current collector and first insulation layers. The current collector includes a main body part and a tab. The tab extends from a first end of the main body part. The first end is one end of the main body part along a first direction. The tab includes a first part and a second part. The first part is closer to the main body part than the second part. The first insulation layers are disposed on surfaces of two sides of the first part. A ratio L of a thickness of the first insulation layers to a thickness of the first part satisfies: L≤1.3.
Resumen de: EP4621899A1
The present application provides a module pressurization device and a pressurization method therefor; the module pressurization device is provided with a pressurization station for carrying out pressure maintaining on a battery module of which the bottom is adhered with a heat dissipation plate; the module pressurization device includes a conveying line, a pressurization apparatus and a control apparatus; the conveying line passes through the pressurization station and is configured to convey the battery module; the pressurization apparatus is arranged corresponding to the pressurization station, the pressurization apparatus includes a jacking and supporting mechanism and a pressurization mechanism which are opposite in a first direction, in which, the jacking and supporting mechanism is provided with a plurality of jacking and supporting portions which can move in the first direction, the plurality of jacking and supporting portions are arranged in a second direction and are configured to jack and support the heat dissipation plate, and the pressurization mechanism is configured to compress the battery module; and the control apparatus is electrically connected to the jacking and supporting mechanism and the pressurization mechanism so as to control the jacking and supporting mechanism and the pressurization mechanism to act. The heat dissipation plate is supported by the jacking and supporting mechanism, and the pressurization mechanism is operated to apply pressure to the
Resumen de: EP4621920A1
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 R<sub>1</sub> to R<sub>5</sub> 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.
Resumen de: EP4621926A1
A battery protection board, a battery apparatus and a power consuming device. The battery protection board includes a circuit board and a first conductive member. The circuit board includes a board body, a first conductive path and a second conductive path. The first conductive path and the second conductive path are both disposed on the board body and insulated from each other. The first conductive path is adapted to be electrically connected to a first electrode of a battery core, and the second conductive path is adapted to be electrically connected to a second electrode of the battery core. Polarities of the first electrode and the second electrode are opposite. The first conductive member is mounted to the board body and connected in parallel with at least part of the first conductive path. The first conductive member is provided to be connected in parallel with at least part of the first conductive path of the circuit board, and the first conductive member is directly mounted to the circuit board to be a whole, which not only reduces internal traces of the board body and saves an internal space of the board body, but also does not need additional assembly, thereby reducing procedures and costs and facilitating automatic mass production.
Resumen de: EP4621933A1
A method of deactivating a secondary battery includes setting discharge conditions for a secondary battery having a positive voltage, connecting a current or voltage adjustable power source to the secondary battery, and overdischarging the secondary battery to a voltage minimum point, which is a negative voltage, by adjusting at least one of current or voltage of the current or voltage adjustable power source based on the discharge conditions.
Resumen de: GB2639353A
The purpose of the present invention is to, when there is an abnormality in an electric vehicle equipped with a drive system which uses a storage battery device, identify not only the abnormality location but also the cause of the abnormality, and easily acquire an abnormality countermeasure proposal including changes to the operation method of the electric vehicle. The abnormality countermeasure system according to the present invention can be used in an electric vehicle equipped with a drive system which uses a storage battery device. A cause determination unit monitors the state of the electric vehicle and the storage battery device, and, when an abnormality flag has been outputted from at least one of the electric vehicle and the storage battery device, analyzes the state of at least one of the electric vehicle and the storage battery device to identify the cause of the abnormality indicated by the abnormality flag. A countermeasure proposal unit notifies a manager of the electric vehicle about the countermeasure proposal and the cause analysis results of the abnormality flag. The countermeasure proposal includes the following categories: changes to the operation method of the electric vehicle, changes to the control parameters of the storage battery device or the drive system, repairs to faulty software or faulty equipment in the storage battery device or the drive system, and replacement of a degraded storage battery.
Resumen de: EP4621523A1
Provided is an electronic apparatus that can secure a thin chassis and achieve easy removal of a battery.The electronic apparatus includes: a chassis member having an opening surface; a cover member including a plate portion, and an inclined wall portion provided in a standing manner from an edge portion of the plate portion and inclined in a direction separating from the plate portion toward a standing direction of the inclined wall portion, the cover member being configured to open and close at least part of the opening surface; a battery detachably supported on an inner surface side of the chassis member and including a locked part on a first lateral surface facing the inclined wall portion; a latch member supported on the chassis member in such a manner as to be movable between a locked position where the latch member holds down the locked part and an unlocked position where the latch member retracts from the locked part, the latch member having an inclined surface facing an inner wall surface of the inclined wall portion at the locked position; and a spring member provided between the chassis member and the battery and configured to bias the battery such that the battery rises up from an inner surface of the chassis member.
Resumen de: EP4621932A1
Provided is a charging control method and apparatus for battery. The charging control method may include determining a charging completion voltage of constant current charging or constant power charging as a first value based on a target charging energy of a battery, before a voltage value of the battery reaches the first value during the constant current charging or the constant power charging, determining whether a time point at which the voltage value of the battery reaches the first value is predicted to be near a local minimum point of a voltage rise rate of the battery, and maintaining or changing the charging completion voltage based on a result of determining whether the time point at which the voltage value of the battery reaches the first value is predicted to be near the local minimum point of the voltage rise rate of the battery.
Resumen de: EP4621857A1
An anode active material for a lithium secondary battery according to embodiments of the present disclosure includes composite particles which comprise a silicon-containing coating formed on a surface of carbon-based particles comprising porous, wherein the composite particles have a C/SiC peak intensity ratio of 1.0 to 4.5, which is measured through X-ray diffraction analysis after performing heat treatment on the composite particles at 900°C to 1200 °C for 6 hours to 9 hours. A method of preparing an anode active material for a lithium secondary battery according to embodiments of the present disclosure comprise preparing preliminary carbon-based particles including pores; performing first calcination on the preliminary carbon-based particles with a hydrogen-containing gas to form carbon-based particles; and performing second calcination on the carbon-based particles with a silicon-containing gas to form composite particles which comprise a silicon-containing coating formed on a surface of the carbon-based particles, wherein the composite particles have a C/SiC peak intensity ratio of 1.0 to 4.5, which is measured through X-ray diffraction analysis after performing heat treatment on the composite particles at 900°C to 1200 °C for 6 hours to 9 hours.
Resumen de: EP4621087A1
Provided is a copper foil, including 2 ppm to 21 ppm silver, 0.5 ppm to 5.5 ppm titanium, and 2 ppm to 80 ppm sulfur, wherein an orientation index of (220) surface of the copper foil is from 2.05 to 3.08. Also provided are a current collector for a lithium ion secondary battery and a lithium ion secondary battery.
Resumen de: EP4621686A1
Provided in the present application are an RMS-based accounting and tracing method and apparatus for the proportion of a recycled material, and a storage medium. The method comprises: collecting production material data within a preset system boundary range on a production line, wherein the production material data comprises the proportion of externally purchased salt in an element i of salt used in the production of a raw material of a self-produced positive electrode material, the proportion of a recycled material in the element i of the externally purchased salt, the proportion of self-produced salt in the element i of the salt used in the production of the raw material of the self-produced positive electrode material, and the proportion of a recycled material in the element i of the self-produced salt, and the salt used in the production of the raw material of the self-produced positive electrode material comprises the self-produced salt and the externally purchased salt; and on the basis of the production material data and a preset accounting formula for the proportion of a recycled material in the element i of the raw material of the self-produced positive electrode material, obtaining the proportion of the recycled material in the element i of the raw material of the self-produced positive electrode material. By using the present application, the proportion of a recycled material can be precisely accounted.
Nº publicación: EP4621941A1 24/09/2025
Solicitante:
AIRBUS SAS [FR]
Airbus S.A.S
Resumen de: EP4621941A1
A cooling arrangement (10), an energy storage device (2), in particular an electrochemical battery for an apparatus (1), and an apparatus (1), in particular a vehicle, such as an aircraft, are provided. For cooling down an energy storage device (2), such as an electrochemical battery in an apparatus (1), in particular a vehicle, such as an aircraft, the cooling arrangement (10) comprising at least one compressing device (18) for providing a cooling medium (C) and/or cooling agent (D) for cooling down the energy storage device (2) and/or quenching exhausts (E), respectively, which may be produced due to a technical failure of at least one energy storage unit (20) of the energy storage device (2), wherein the compressing device (14) is configured to be at least partly driven by the exhausts (E).
BOPI
Sede Electrónica
