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    GEL POLYMER ELECTROLYTE WITH SULFOLENE ADDITIVE
    4.
    发明公开
    GEL POLYMER ELECTROLYTE WITH SULFOLENE ADDITIVE 审中-公开

    公开(公告)号：US20240014440A1

    公开(公告)日：2024-01-11

    申请号：US17900048

    申请日：2022-08-31

    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

    Inventor： Qili SU ,  Zhe LI ,  Haijing LIU ,  Lidan XING ,  Lijiao QUAN

    IPC: H01M10/0565

    CPC classification number: H01M10/0565 ,  H01M10/0525

    Abstract: The present disclosure a gel polymer electrolyte for an electrochemical cell that cycles lithium ions. The gel polymer electrolyte includes a polymer host, a liquid electrolyte, and greater than or equal to about 0.1 wt. % to less than or equal to about 10 wt. % of a sulfolene additive. In certain variations, the gel polymer electrolyte also includes greater than or equal to about 0.1 wt. % to less than or equal to about 5 wt. % of an ethylene carbonate additive. The ethylene carbonate additive may be selected from the group consisting of: vinyl ethylene carbonate (VEC), fluoroethylene carbonate (FEC), vinylene carbonate, and combinations thereof. In each instance, the lithium electrolyte may include a first lithium salt, a second lithium salt that is distinct from the first lithium salt, and a third lithium salt that is distinct from the first lithium salt and the second lithium salt.

    GEL-BASED SOLID-STATE BATTERY CELL
    7.
    发明公开
    GEL-BASED SOLID-STATE BATTERY CELL 审中-公开

    公开(公告)号：US20240283057A1

    公开(公告)日：2024-08-22

    申请号：US18360086

    申请日：2023-07-27

    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

    Inventor： Yong LU ,  Zhe Li ,  Qili SU ,  Dave G. RICH ,  Haijing LIU

    IPC: H01M12/02

    CPC classification number: H01M12/02 ,  H01M2300/0085

    Abstract: A solid-state battery cell includes an anode electrode comprising an anode current collector and an anode coating. A cathode electrode comprises a cathode current collector and a cathode coating, wherein the anode electrode and the cathode electrode exchange lithium ions. A separator layer is arranged between the anode electrode and the cathode electrode. A first capacitor electrode is arranged at least one of between the anode coating and a first side of the separator layer, between the anode coating and the anode current collector, between a second side of the separator layer and the cathode coating, and between the cathode coating and the cathode current collector.

    ELECTROLYTE FOR ANODE-FREE BATTERY
    8.
    发明公开
    ELECTROLYTE FOR ANODE-FREE BATTERY 审中-公开

    公开(公告)号：US20240234812A1

    公开(公告)日：2024-07-11

    申请号：US18232899

    申请日：2023-08-11

    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

    Inventor： Zhe LI ,  Qili SU ,  Haijing LIU ,  Shiguo ZHANG ,  Minghan ZHOU

    IPC: H01M10/0567 ,  H01M10/052 ,  H01M10/0568 ,  H01M10/0569

    CPC classification number: H01M10/0567 ,  H01M10/052 ,  H01M10/0568 ,  H01M10/0569 ,  H01M2300/0028 ,  H01M2300/0091

    Abstract: An anode-free electrochemical cell that cycles lithium ions includes a positive electrode assembly having a positive current collector and a positive electroactive material layer, a negative current collector that includes a surface configured to receive a negative electroactive material after one or more formation cycles of the anode-free electrochemical cell, and a separating layer disposed between the positive electroactive material layer and the surface of the negative current collector. The separating layer includes an electrolyte that includes greater than or equal to about 20 wt. % to less than or equal to about 99.5 wt. % of a concentrated electrolyte having a lithium salt concentration greater than or equal to about 2 M to less than or equal to about 6 M, and greater than or equal to about 0.5 wt. % to less than or equal to about 80 wt. % of an ionic liquid.

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