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    Electrode assembly, secondary battery, and method of manufacture
    5.
    发明授权
    Electrode assembly, secondary battery, and method of manufacture 有权

    公开(公告)号：US12255353B2

    公开(公告)日：2025-03-18

    申请号：US17525397

    申请日：2021-11-12

    Applicant: Enovix Corporation

    Inventor： Jeremie J. Dalton ,  Robert S. Busacca ,  Ashok Lahiri ,  Murali Ramasubramanian ,  Bruno A. Valdes ,  Kim Han Lee ,  Anthony Calcaterra ,  Benjamin L. Cardozo

    IPC: H01M50/474 ,  H01M10/0585 ,  H01M10/0587

    Abstract: Secondary batteries and methods of manufacture thereof are provided. A secondary battery can comprise an electrode layer comprising a population of spacer structures comprising a material other than the electrode active material, wherein (a) the spacer population occupies a total volume within the electrode layer within the range of about 0.1% to about 35% of the volume, VE, of the electrode layer, and (b) a member of the spacer population is located within each subvolume of the electrode layer comprising (i) at least 25% of the volume, VE, of the electrode layer, and (ii) bounded on all sides by (aa) the unit cell portion of the electrode current collector, (bb) the separator layer, (cc) the top surface of the electrode layer, (dd) the bottom surface of the electrode layer, (ee) the first end surface of the electrode layer, and (ff) the second end surface of the electrode layer.

    BUSBAR-OVER-ELECTRODE INTERCONNECT SYSTEMS FOR SECONDARY BATTERIES AND METHODS OF ASSEMBLING THE SAME
    7.
    发明申请
    BUSBAR-OVER-ELECTRODE INTERCONNECT SYSTEMS FOR SECONDARY BATTERIES AND METHODS OF ASSEMBLING THE SAME 有权

    公开(公告)号：US20250007117A1

    公开(公告)日：2025-01-02

    申请号：US18741672

    申请日：2024-06-12

    Applicant: Enovix Corporation

    Inventor： Daniel J. Noelle ,  Michael J. Armstrong ,  Miles A.M. Kool ,  Robert S. Busacca ,  Benjamin L. Cardozo ,  Murali Ramasubramanian

    IPC: H01M50/533 ,  H01M4/66 ,  H01M50/536

    Abstract: An electrode assembly includes unit cells stacked in a longitudinal direction, each unit cell including an electrode structure, a separator, and a counter-electrode structure. The electrode structure includes an electrode current collector and an electrode active material layer. The counter-electrode structure includes a counter-electrode current collector and a counter-electrode active material layer. An end portion of the counter-electrode current collector extends past the counter-electrode active material and the separator. The end portion of the counter-electrode current collector is bent to define a bent end portion of the respective counter-electrode current collector. The bent end portions of at least some of the counter-electrode current collectors overlap the bent end portion of an adjacent counter-electrode current collector. The electrode assembly also includes a counter-electrode busbar extending across and attached to the bent end portions such that the counter-electrode current collectors are electrically connected to and are disposed inboard of the counter-electrode busbar.

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