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    FREE-STANDING GEL MEMBRANE FOR ELECTROCHEMICAL CELL
    1.
    发明公开
    FREE-STANDING GEL MEMBRANE FOR ELECTROCHEMICAL CELL 审中-公开

    公开(公告)号：US20240234811A1

    公开(公告)日：2024-07-11

    申请号：US18131172

    申请日：2023-04-05

    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

    Inventor： Zhe LI ,  Qili SU ,  Meiyuan WU ,  Yong LU ,  Haijing LIU

    IPC: H01M10/0565 ,  H01M10/0562

    CPC classification number: H01M10/0565 ,  H01M10/0562 ,  H01M2300/0085 ,  H01M2300/0091

    Abstract: An electrochemical cell that cycles lithium ions includes a positive electrode that includes a positive electroactive material, a negative electrode that includes a negative electroactive material, and a free-standing separating layer disposed between the positive electrode and the negative electrode. The free-standing separating layer includes a gel membrane that includes a polymer host and a liquid electrolyte and an integrated structural component disposed within the gel membrane. The integrated structural component may be selected from the group consisting of: a plurality of solid-state electrolyte particles, a nonwoven material, and a combination thereof.

    SELF-HEATING BIPOLAR SOLID-STATE BATTERY
    6.
    发明申请
    SELF-HEATING BIPOLAR SOLID-STATE BATTERY 有权

    公开(公告)号：US20220302526A1

    公开(公告)日：2022-09-22

    申请号：US17683976

    申请日：2022-03-01

    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

    Inventor： Zhe LI ,  Xiaochao QUE ,  Haijing LIU ,  Yong LU ,  Meiyuan WU ,  Jingyuan LIU

    IPC: H01M10/6571 ,  H01M10/0525 ,  H01M10/615 ,  H01M4/80 ,  H01M4/66 ,  H01M10/0585

    Abstract: The present disclosure provides a solid-state battery including at least one current collector that is in communication with one or more switches configured to move between open and closed positions, where the open position corresponds to a first operational state of the solid-state battery and the closed position corresponds to a second operational state of the solid-state battery; one or more electrodes disposed adjacent to the one or more current collectors; and one or more electrothermal material foils including a resistor material that is in electrical communication with that at least one current collector, where in the first operational state electrons may flow through the one or more electrothermal material foils during cycling of the solid-state battery so as to initiate a heating mode, and in the second operational state electrons may flow through the current collector during cycling of the solid-state battery so as to initiate a non-heating mode.

    IN-SITU GELATION METHOD TO MAKE A BIPOLAR SOLID-STATE BATTERY
    7.
    发明申请
    IN-SITU GELATION METHOD TO MAKE A BIPOLAR SOLID-STATE BATTERY 有权

    公开(公告)号：US20220181685A1

    公开(公告)日：2022-06-09

    申请号：US17542299

    申请日：2021-12-03

    Applicant: GM Global Technology Operations LLC

    Inventor： Zhe LI ,  Meiyuan WU ,  Yong LU ,  Haijing LIU ,  Xiaochao QUE

    IPC: H01M10/0565 ,  H01M10/0585

    Abstract: A method for forming a bipolar solid-state battery includes preparing a mixture of gel precursor solution and solid electrolyte. The gel precursor includes a polymer, a first solvent, and a liquid electrolyte. The liquid electrolyte includes a second solvent, a lithium salt, and electrolyte additive. The method includes loading the mixture onto at least one of a first electrode, a second electrode, and a third electrode. Each of the first, second, and third electrodes includes a plurality of solid-state electroactive particles. The method includes removing at least a portion of the first solvent from the mixture to form a gel and positioning one of the first, second, and third electrodes with respect to another of the first, second, and third electrodes. The method includes applying a polymer blocker to a border of the first, second, or third electrodes.

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