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    WELD STRUCTURES CONFIGURED FOR JOINING MATERIALS
    3.
    发明申请
    WELD STRUCTURES CONFIGURED FOR JOINING MATERIALS 有权

    公开(公告)号：US20240391022A1

    公开(公告)日：2024-11-28

    申请号：US18322973

    申请日：2023-05-24

    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

    Inventor： Junjie MA ,  Ying LU ,  Hui-ping WANG ,  Joshua Lee SOLOMON ,  Baixuan YANG

    IPC: B23K26/08 ,  B23K26/21

    Abstract: A system for joining a first part and a second part together with a weld structure. The system includes: a welding element configured to form the weld structure between the first part and the second part; and a control module configured to operate the welding element to form the weld structure. The weld structure includes: a first curved end; a second curved end; a connecting portion connecting the first curved end and the second curved end; a first curved crown spaced apart from the first curved end and concentric with the first curved end; and a second curved crown spaced apart from the second curved end and concentric with the second curved end. The first curved end, the second curved end, and the connecting portion are between the first curved crown and the second curved crown.

    BATTERY CELL INCLUDING INTERNAL TERMINAL LASER-WELDED TO FOLDED EXTERNAL CONNECTOR TABS
    4.
    发明申请
    BATTERY CELL INCLUDING INTERNAL TERMINAL LASER-WELDED TO FOLDED EXTERNAL CONNECTOR TABS 有权

    公开(公告)号：US20250149758A1

    公开(公告)日：2025-05-08

    申请号：US18386849

    申请日：2023-11-03

    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

    Inventor： Masoud MOHAMMADPOUR ,  Junjie MA ,  Hui-ping WANG ,  Teresa Jean RINKER ,  Vincent Edward HERRMAN

    IPC: H01M50/566 ,  H01M10/04 ,  H01M50/533

    Abstract: A battery cell including a stack and a first internal terminal. The stack includes: C cathode electrodes each including a cathode current collector, a cathode active layer arranged on the cathode current collector, and an external connector extending from the cathode current collector; A anode electrodes each including an anode current collector, an anode active layer arranged on the anode current collector, and an external connector extending from the anode current collector; and S separators, where C, A, and S are integers greater than one. Each one of the external connectors, of one of the C cathode electrodes and the A anode electrodes, includes a first tab and a second tab extending farther than the first tab, the second tabs are folded onto the first tabs, and the first internal terminal is laser welded onto the second tabs.

    LASER-WELDING OF EXTERNAL TABS OF ELECTRODES TO INTERNAL TERMINALS OF BATTERY CELLS
    6.
    发明申请
    LASER-WELDING OF EXTERNAL TABS OF ELECTRODES TO INTERNAL TERMINALS OF BATTERY CELLS 有权

    公开(公告)号：US20240429553A1

    公开(公告)日：2024-12-26

    申请号：US18337916

    申请日：2023-06-20

    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

    Inventor： Masoud MOHAMMADPOUR ,  Junjie MA ,  Teresa Jean RINKER ,  Blair E. CARLSON ,  Jennifer Therese BRACEY

    IPC: H01M50/30 ,  B23K26/26 ,  H01M50/46 ,  H01M50/536

    Abstract: A method for manufacturing a battery cell includes providing a stack including C cathode electrodes each including a cathode current collector, a cathode active layer, and an external tab extending from the cathode current collector, A anode electrodes including an anode current collector, an anode active layer, and an external tab extending from the anode current collector, and S separators. The method includes providing a terminal including a first portion connected to a second portion at a predetermined angle less than or equal to 100°; positioning external tabs of one of the A anode electrodes and the C cathode electrodes in contact with one of an inner surface and an outer surface of the first portion of the terminal; and laser welding ends of the external tabs to the one of an inner surface and an outer surface of the first portion of the terminal.

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