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1568
resultados
Última actualización
08/11/2025 [07:55:00]
Resultados 375 a 400 de 1568
Resumen de: EP4644830A1
The present application relates to a coating misalignment detection method, an apparatus, a computer device, and a storage medium. The method includes: obtaining a coating type of an electrode plate substrate and determining a number of reference edges according to the coating type; determining a corresponding target reference edge of each coating region edge of the electrode plate substrate in a case where the number of reference edges is two; determining first distance data from coating region edges on a first surface of the electrode plate substrate to a corresponding target reference edge and second distance data from coating region edges on a second surface of the electrode plate substrate to a corresponding target reference edge; and determining a coating misalignment amount of the electrode plate substrate in a coating process according to the first distance data and the second distance data. By adopting the method, the interference generated by blank regions on the surfaces of the electrode plate substrate in the coating misalignment detection process can be reduced, and the accuracy of the coating misalignment detection is effectively improved.
Resumen de: EP4645443A1
The present application provides a positive electrode plate and a preparation method therefor, as well as a secondary battery, and an electrical apparatus. The positive electrode plate of the present application has a higher compacted density.
Resumen de: EP4644843A1
The present application provides a calibration element and a method for calibrating a detection system using the calibration element. The calibration element includes a base body including a side face and at least one reference portion located at the side face of the base body, wherein the at least one reference portion has at least two of the following items: at least one first shape feature perpendicular to the side face, at least one second shape feature parallel to the side face, and at least one color feature, wherein the at least one first shape feature, the at least one second shape feature and the at least one color feature are used for calibration of the detection system. The technical solutions in the embodiments of the present application can efficiently determine whether a fault exists in the detection system, find and solve a problem in a timely manner, thereby ensuring the normal operation of the system.
Resumen de: EP4645569A1
Disclosed in the present disclosure is a composite separator and a preparation method and application thereof. A composite separator includes a porous base film (1) and a coating (2). The coating (2) is provided on a surface of the porous base film (1), the coating (2) includes a base layer (21) and a non-adhesive polymer C (22) provided on the base layer (21), and the base layer (21) includes inorganic particles A and an adhesive polymer B. A maximum particle size of the non-adhesive polymer C (22) is greater than a thickness of the base layer (21) and a particle size of the non-adhesive polymer C (22) is in a range of 0.3 µm to 30 µm. The adhesive polymer B includes a first component and a second component. The first component includes at least one of a vinyl polymer, a propylene-based polymer, an amide-based polymer, and an epoxy-based polymer. The second component includes a cellulose-based polymer.
Resumen de: EP4645422A2
Provided in the present disclosure is a cell, including a positive electrode sheet, a composite separator and a negative electrode sheet provided in sequence. The positive electrode sheet includes a first positive electrode active coating. The negative electrode sheet includes a first negative electrode active coating. The composite separator includes a positive-side porous active layer and a negative-side porous active layer. The positive-side porous active layer includes a non-adhesive polymer C1. The negative-side porous active layer includes a non-adhesive polymer C2. A compaction density of the first positive electrode active coating is in a range of 2.05 g/cm<sup>3</sup> to 3.60 g/cm<sup>3</sup>. A compaction density of the first negative electrode active coating is in a range of 1.40 g/cm<sup>3</sup> to 1.85 g/cm<sup>3</sup>. Composite of the positive electrode sheet and the composite separator is realized by press-fit processing I. Composite of the negative electrode sheet and the composite separator is realized by press-fit processing II.
Resumen de: EP4645518A1
A battery system includes a first battery module and a plurality of second battery modules coupled to the first battery module. The first battery module includes a battery management system, and a plurality of first battery cells electrically coupled to each other. The first battery cells are electrically coupled to the battery management system to be managed by the battery management system. Each of the second battery modules includes a plurality of second battery cells electrically coupled to each other. The second battery cells are coupled to the battery management system of the first battery module to be managed by the battery management system. The battery management system is coupled to an external system to transmit signals with the external system.
Resumen de: EP4644035A1
The present application provides a battery housing cover welding system and a point check method for same. The system includes a calibration block including a battery profiling body which includes: a top surface, a first side surface joined to the top surface through a first edge, a second side surface joined to the top surface through a second edge, a third side surface joined to the top surface through a third edge, and a fourth side surface joined to the top surface through a fourth edge; a first surface feature, a second surface feature, a third surface feature, and a fourth surface feature that are disposed near the first edge, the second edge, the third edge, and the fourth edge, respectively, and all located on the top surface; and a first side surface feature, a second side surface feature, a third side surface feature, and a fourth side surface feature that are disposed near the first edge, the second edge, the third edge, and the fourth edge, respectively, and located on the first side surface, the second side surface, the third side surface, and the fourth side surface, respectively. The technical solution of embodiments of the present application may enable the determining of whether the battery housing cover welding system has a fault.
Resumen de: WO2025188288A1
One or more aspects of the present disclosure provides methods for recycling and upcycling battery anode materials. The methods include producing raw anode materials by processing spent battery materials containing a first anode material; purifying the raw anode materials; and generating a second anode material using the purified raw anode materials. In some embodiments, the first anode material includes graphite. The second anode material includes a graphite-silicon composite and/or a graphite-silicon oxide composite. The second anode material may be battery-grade anode materials that can be directly used in the electrodes of new batteries.
Resumen de: EP4644879A1
The present disclosure relates to the field of batteries, and provides a tab defect detection method and a tab defect detection device for a battery cell. The tab defect detection method includes: obtaining a first image of a first side surface and a second image of an opposite second side surface of a tab stack of the battery cell, where the first and second side surfaces are two surfaces that are parallel to a stacking direction of the tab stack and extend along a height direction of a tab; obtaining a first detection result based on the first image and a second detection result based on the second image, where the first and second detection results indicate: whether the tab in the tab stack has a first-type defect; and a position of the first-type defect, the first-type defect including a tab line abnormality, and the position of the first-type defect indicating a relative position of the first-type defect relative to a height of the tab; and determining, based on the first and second detection results, whether the tab stack has a folding-to-film region defect. The method can more accurately detect whether a tab folding defect exists to determine whether a cell is qualified.
Resumen de: EP4645464A1
An embodiment of the present disclosure provides an electrode plate including: a substrate; an active material layer on at least a portion of one surface of the substrate and having a multi-stage end portion; and a protective member on at least a portion of the multi-stage end portion of the active material layer and on the substrate such that the protective member does not protrude past the active material layer in a thickness direction.
Resumen de: EP4645488A1
Um die Zuführung eines Separators zu eine Z-Faltprozess bei der Batteriezellherstellung hinsichtlich Qualität und Taktzeit zu verbessern wird der Separator mit folgenden Schritten zugeführt:a) Zuführen einer Separatorbahn (16) mit einer ersten Bahnspannung zu einer Bahnspannungsübersetzungseinheit (20), die einen Bahnverlauf der Separatorbahn in Abschnitte (38, 40) mit unterschiedlichen Bahnspannungen aufteilt;b) Führen der Separatorbahn (16) von der Bahnspannungsübersetzungseinheit (20) mit einer zweiten Bahnspannung zu einer Separatorführungseinheit (24);c) Z-förmiges Zuführen der Separatorbahn (16) mittels Hin- und Herbewegung der Separatorführungseinheit (24) zum Stapeln der Batteriezelle; undd) Steuern der zweiten Bahnspannung abhängig von der Position der Separatorführungseinheit (24).Außerdem werden Einrichtungen (14), Vorrichtungen (10), Steuerungen (54) und Computerprogramme zum Durchführen des Zuführens vorgeschlagen.
Resumen de: EP4644015A1
The present application discloses a die cutting method and apparatus for an electrode plate. The die cutting method for an electrode plate includes: providing an electrode-plate material; in a process in which a die cutting unit (120) performs die cutting on the electrode-plate material (900) to generate an electrode plate (901) having a length of a single-battery cell electrode plate, a defect detection unit performs defect detection on the electrode-plate material (900), where the electrode plate (901) having the length of the single-battery cell electrode plate is indicated by a mark (911) obtained through die cutting performed on the electrode plate (901); and in response to that the defect detection unit detects a defect (990) in the electrode-plate material (900), ending, depending on a position of the detected defect (990) on a first electrode plate on which die cutting is performed, die cutting performed on the first electrode plate, and restarting to perform die cutting on a second electrode plate.
Resumen de: EP4645563A1
The present disclosure provides a battery cell including a can including a side wall extended in an axial direction, and an open end portion at an end portion of the side wall in the axial direction; a cap that covers the open end portion; an electrode assembly housed in the can; and a current collector plate electrically connecting the electrode assembly and the can, wherein an edge of the cap is joined to the end portion of the side wall in the axial direction, the cap includes a loop-shaped fracture inducement portion that is concentric with the edge of the cap, the current collector plate includes a body portion connected to an electrode tab of the electrode assembly; a loop-shaped can connection portion disposed on a more centrifugal side than the body portion and joined to at least one of the side wall or the cap; and a bridge having a centripetal side connected to the body portion and a centrifugal side connected to the can connection portion and extended in a radial direction, and the fracture inducement portion of the cap is disposed at an outer position than a centripetal side edge of the can connection portion in the radial direction.
Resumen de: EP4644307A1
An electrode sheet thermal-lamination adjustment mechanism includes a feeding assembly, a deviation correction assembly, and a visual recognition assembly. The feeding assembly includes a feeding platform. A discharge end of the feeding platform faces an incoming material strip. The incoming material strip includes a separator strip and a first electrode sheet disposed within the separator strip. The deviation correction assembly is in transmission connection with the feeding platform. The deviation correction assembly includes a first deviation correction member, a second deviation correction member, and a third deviation correction member. The first deviation correction member is configured to adjust the adjustment position of the second electrode sheet along an X direction. The second deviation correction member and the third deviation correction member are each configured to adjust the adjustment position of the second electrode sheet along a Y direction. The second deviation correction member and the third deviation correction member are sequentially disposed along the X direction. The X direction is parallel with the conveying direction of the second electrode sheet. The Y direction is perpendicular to the X direction. The X direction and the Y direction are in the same plane. The visual recognition assembly faces the feeding platform. The visual recognition assembly is configured to perform visual recognition on the second electrode sheet on the feeding platform.
Resumen de: EP4645471A1
The present disclosure relates to the field of lithium-ion batteries and discloses a cathode material, a preparation method therefor, and a lithium-ion battery. The cathode material has a composition represented by Li1+a(NixCoyMnzGb)TcO2, where 0.02≤a≤0.1,0.6≤x≤1, 0
Resumen de: EP4644921A1
The present disclosure relates to the technical field of cell production and testing, and in particular to a conductive-particle-covering dielectric withstand testing method. The conductive-particle-covering dielectric withstand testing method includes the following steps: press-fitting an electrode-protecting cover plate to an electrode on an insulating layer of a cell to form a target cell; moving the target cell to a metallic trough; filling a conductive particle between the metallic trough and an insulating layer of the target cell; connecting a ground terminal of a dielectric withstand tester to the target cell through a lead; connecting a high-voltage terminal of the dielectric withstand tester to the metallic trough through a second lead; and testing the target cell with the dielectric withstand tester. Since the insulating coating of the target cell is fully covered by the conductive particles, a void (a bubble or an air gap) is not formed between the conducting medium and the insulating coating, and an insulation flaw on the coating of the cell is not concealed for a high impedance of the void, thereby preventing outflow of a product with unqualified insulation.
Resumen de: EP4645486A1
The present disclosure discloses an adhesive tape applying device, an adhesive tape applying method and a battery production line. The adhesive tape applying device is used for applying an adhesive tape to a workpiece. The adhesive tape applying device includes: an adhesive tape applying mechanism, including an adhesive tape sucking head for sucking the adhesive tape; and a shaping mechanism, including a shaping assembly, the shaping assembly including a first shaping piece and a second shaping piece which are arranged at an interval, and an interval space between the first shaping piece and the second shaping piece forming a shaping channel. The adhesive tape sucking head is configured as follows: the adhesive tape sucking head can pass through the shaping channel and enable one end portion of two end portions of the adhesive tape to be in contact with the first shaping piece and pass through a gap between the adhesive tape sucking head located in the shaping channel and the first shaping piece and the other end portion of the two end portions of the adhesive tape to be in contact with the second shaping piece and pass through a gap between the adhesive tape sucking head located in the shaping channel and the second shaping piece, so that the two end portions of the adhesive tape are bent, and the adhesive tape passing through the shaping channel is applied to the workpiece.
Resumen de: EP4645498A1
The present application relates to a lithium secondary battery.
Resumen de: EP4645220A1
The present application provides a welding defect detection method and apparatus, a storage medium, and a program product, and relates to the field of batteries. A weld region and non-weld regions are obtained by using a first image having structural information, a plurality of detection regions of a weld are obtained according to the weld region and the non-weld regions, and it is determined that the weld has a defect when preset attribute information of at least one detection region in the plurality of detection regions of the weld satisfies a preset condition.
Resumen de: EP4644036A1
This disclosure discloses a welding system, a battery production line, and a welding method, pertaining to the field of battery production technology. The welding system is configured to weld an adapting piece. The welding system includes a frame, a welding assembly, a loading assembly, and a driving assembly. The frame has a plurality of loading stations, where at least one loading station is a welding station, and at least one loading station is a feeding station. The welding assembly is disposed on the frame. The loading assembly is movably disposed on the frame. Each loading station is correspondingly provided with a loading assembly. The loading assembly is configured to carry a bare cell. The welding assembly is configured to weld the bare cell carried by the loading assembly located at the welding station. The driving assembly is capable of driving the loading assembly to sequentially move through each loading station along a first direction. The loading assembly, under the action of the driving assembly, moves above or below the loading station along a second direction to return to a corresponding loading station.
Resumen de: EP4645540A1
Disclosed are a cylindrical battery including a cylindrical can configured to receive an electrode assembly, a cap assembly mounted to an opening of the cylindrical can, and a gasket interposed between the cylindrical can and the cap assembly, wherein the cylindrical can is provided at an upper part thereof with a crimped portion wrapping around an outer periphery of the gasket, the crimped portion is provided at an end thereof with a bent portion further bent into the gasket, and the length of the bent portion is less than 0.175 mm, a method for sealing the cylindrical battery, and a crimping apparatus of the cylindrical battery. In sealing by the crimped portion of the cylindrical battery, the problem of sealing degradation caused by primary crimping that applies primary pressure and secondary crimping that applies secondary pressure is solved, and sealing of the cylindrical battery is further enhanced by secondary sealing.
Resumen de: EP4645485A1
This disclosure provides a pairing device and a pairing method. The pairing device includes a first positioning mechanism having a first pairing platform for placing the first workpiece; and a second positioning mechanism having a second pairing platform for placing the second workpiece. The first positioning mechanism and the second positioning mechanism are configured to enable at least one of the first pairing platform and the second pairing platform to move along a first direction, and enable at least one of the first pairing platform and the second pairing platform to rotate around the first direction. The first workpiece and the second workpiece are enabled to have a prescribed orientation by positioning the first pairing platform and the second pairing platform at staggered positions along the first direction, and rotating at least one of the first pairing platform and the second pairing platform around the first direction. The first pairing platform and the second pairing platform are brought closer along the first direction to pair the first workpiece and the second workpiece having the prescribed orientation. This disclosure can reduce damage to tabs.
Resumen de: EP4644926A1
Disclosed is a battery management apparatus and method for calibrating the state of charge (SOC) of a lithium iron phosphate (LFP) battery. The battery management apparatus according to an embodiment of the present disclosure calculates, when going into calibration mode, an average voltage value of voltage values received from a voltage measuring unit for a predefined time, calculates an average current value of current values received from a current measuring unit for the predefined time, calculates an average internal resistance value of the LFP battery for the predefined time based on the average voltage value and the average current value, determines if the average internal resistance value is equal to or larger than a preset reference resistance value, and when the average internal resistance value is equal to or larger than the reference resistance value, calibrates the current SOC to a preset reference SOC.
Resumen de: EP4645403A1
Disclosed are an electrode winding device, a battery cell including an electrode produced using the same, and a battery pack and a vehicle including the battery cell. An electrode winding device according to the present disclosure includes: a winding member configured to wind an electrode; a rotational shaft coupled to the winding member to rotate: a fastening chuck coupled to the rotational shaft and fastening the winding member; a support member configured to support the rotational shaft; a power source configured to provide power to the rotational shaft; and a releasing member coupled to the winding member and configured to release the winding member.
Nº publicación: EP4645637A1 05/11/2025
Solicitante:
ZTE CORP [CN]
ZTE CORPORATION
Resumen de: EP4645637A1
The present application provides a charging method, an electronic device and a computer-readable medium. The charging method comprises: sending a first message to a charger, the first message comprising a first basic charging parameter and a second basic charging parameter, the first basic charging parameter being determined according to a first operating charging parameter requested by a terminal, the second basic charging parameter being determined according to a second operating charging parameter requested by the terminal, and a maximum value of the first operating charging parameter being greater than a first preset threshold value, and/or a maximum value of the second operating charging parameter being greater than a second preset threshold value; and performing charging at the first operating charging parameter and the second operating charging parameter until a full charge capacity is reached.
BOPI
Sede Electrónica
