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    ELECTROCHEMICAL BATTERY CELL INCLUDING A CONDUCTIVE LAYER AND METHOD OF MAKING THE SAME
    5.
    发明申请
    ELECTROCHEMICAL BATTERY CELL INCLUDING A CONDUCTIVE LAYER AND METHOD OF MAKING THE SAME 有权

    公开(公告)号：US20240421456A1

    公开(公告)日：2024-12-19

    申请号：US18334686

    申请日：2023-06-14

    Applicant: GM Global Technology Operations LLC

    Inventor： Seung-Woo Chu

    IPC: H01M50/636 ,  H01M10/0565 ,  H01M10/0569 ,  H01M10/615 ,  H01M50/152

    Abstract: A method for making a battery cell includes: disposing an electrode assembly within a battery can; assembling a top cap assembly to the battery can to form a battery cell having at least a first filling hole and a second filling hole; disposing a first portion of a liquid solution within the battery cell via the first filling hole, the liquid solution including an organic solvent, a cross-linkable polymer and a cross-linking agent; converting the first portion of the liquid solution into a first conductive layer disposed between the electrode assembly and the battery can; disposing a second portion of the liquid solution within the battery cell via the second filling hole; converting the second portion of the liquid solution into a second conductive layer disposed between the electrode assembly and the battery can; and filling the battery cell with a liquid electrolyte via an electrolyte filling hole.

    SYSTEM AND METHOD FOR A LOW-RESISTANCE HIGH-LOADING LITHIUM-ION BATTERY CELL
    7.
    发明公开
    SYSTEM AND METHOD FOR A LOW-RESISTANCE HIGH-LOADING LITHIUM-ION BATTERY CELL 审中-公开

    公开(公告)号：US20240072259A1

    公开(公告)日：2024-02-29

    申请号：US17894687

    申请日：2022-08-24

    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

    Inventor： Michael A. Lelli ,  Seung-Woo Chu ,  Gayatri V. Dadheech

    IPC: H01M4/62 ,  H01M4/04 ,  H01M10/0525

    CPC classification number: H01M4/625 ,  H01M4/0404 ,  H01M10/0525 ,  H01M2004/027

    Abstract: A system including a lithium-ion battery cell is disclosed. The lithium-ion battery cell includes a first electrode. The first electrode includes a current collector including a surface and an electrode coating formed from an electrode coating slurry and disposed on the current collector. The electrode coating slurry includes a plurality of flakes of flake graphite. Each of the plurality of flakes includes two parallel planar surfaces and an edge plane defined by the two parallel planar surfaces. The edge planes of the plurality of flakes are statistically facing toward the surface of the current collector. The first electrode further includes a conductive material including a high aspect ratio nano-sized carbon material. The carbon material is configured for providing attractive forces between components of the electrode coating. The lithium-ion battery cell further includes a second electrode, a separator disposed between the first electrode and the second electrode, and an electrolyte.

    BATTERY CELL INCLUDING A CONDUCTIVE LAYER AND METHOD OF MAKING THE SAME
    10.
    发明公开
    BATTERY CELL INCLUDING A CONDUCTIVE LAYER AND METHOD OF MAKING THE SAME 审中-公开

    公开(公告)号：US20240283015A1

    公开(公告)日：2024-08-22

    申请号：US18166823

    申请日：2023-02-09

    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

    Inventor： Seung-Woo Chu ,  Mansu Park ,  Hwanchul Kim

    IPC: H01M10/0565 ,  H01M10/058 ,  H01M50/59

    CPC classification number: H01M10/0565 ,  H01M10/058 ,  H01M50/59 ,  H01M2300/0085

    Abstract: An electrochemical battery cell may include an electrode assembly, a liquid electrolyte, a metallic battery enclosure or “can,” and a liquid solution. The electrode assembly and the electrolyte solution may be disposed within the battery can. The liquid solution may be disposed between the electrode assembly and the battery can. The liquid solution may include an organic solvent, a cross-linkable polymer and a cross-linking agent which may be converted into a conductive layer by reacting the cross-linkable polymer and the cross-linking agent of the liquid solution to form a reaction product. The liquid solution may include an ion conducting salt. The reaction product may be a polymer matrix and the organic solvent and/or the ion conducting salt may be contained within the polymer matrix. Reacting the cross-linkable polymer and the cross-linking agent may include applying heat to the liquid solution to convert the liquid solution into the reaction product.

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