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    Solid-state electrolytes and methods for making the same
    24.
    发明授权
    Solid-state electrolytes and methods for making the same 有权

    公开(公告)号：US11600851B2

    公开(公告)日：2023-03-07

    申请号：US16786469

    申请日：2020-02-10

    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

    Inventor： Zhe Li ,  Yong Lu ,  Xiaochao Que ,  Haijing Liu

    IPC: H01M10/0562 ,  H01M10/0525

    Abstract: The present disclosure relates to solid-state electrolytes and methods of making the same. The method includes admixing a sulfate precursor including one or more of Li2SO4 and Li2SO4.H2O with one or more carbonaceous capacitor materials. The first admixture is calcined to form an electrolyte precursor that is admixed with one or more additional components to form the solid-state electrolyte. When a ratio of the sulfate precursor to the one or more carbonaceous capacitor materials in the first admixture is about 1:2, the electrolyte precursor consists essentially of Li2S. When a ratio of the sulfate precursor to the one or more carbonaceous capacitor materials in the first admixture is less than about 1:2, the electrolyte precursor is a composite precursor including a solid-state capacitor cluster including the one or more carbonaceous capacitor materials and a sulfide coating including Li2S disposed on one or more exposed surfaces of the solid-state capacitor cluster.

    Sulfide-impregnated solid-state battery
    25.
    发明授权
    Sulfide-impregnated solid-state battery 有权

    公开(公告)号：US11539071B2

    公开(公告)日：2022-12-27

    申请号：US16578880

    申请日：2019-09-23

    Applicant: GM Global Technology Operations LLC

    Inventor： Zhe Li ,  Xiaochao Que ,  Haijing Liu ,  Yong Lu ,  Mark W. Verbrugge ,  Meiyuan Wu

    IPC: H01M10/0562 ,  H01M10/0525

    Abstract: A sulfide-impregnated solid-state battery is provided. The battery comprises a cell core constructed by basic cell units. Each unit comprises a positive electrode comprising a cathode layer and a positive meshed current collector comprising a conductive material which is further coated by oxide-based solid-state electrolyte. The cell unit further comprises a negative electrode comprising an anode layer and a negative meshed current collector comprising a conductive material which is further coated by oxide-based solid-state electrolyte. The positive and negative electrodes are stacked together to form the cell unit. The two coated oxide-based solid electrolyte layers are disposed between the positive and negative electrode as dual separators. Such a cell unit may be repeated or connected in parallel or bipolar stacking to form the cell core to achieve a desired battery voltage, power and energy. The cell core comprises a sulfide-based solid-state electrolyte dispersed in the pore structures of cell core.

    SULFIDE-IMPREGNATED SOLID-STATE BATTERY
    26.
    发明申请
    SULFIDE-IMPREGNATED SOLID-STATE BATTERY 有权

    公开(公告)号：US20210036360A1

    公开(公告)日：2021-02-04

    申请号：US16578880

    申请日：2019-09-23

    Applicant: GM Global Technology Operations LLC

    Inventor： Zhe Li ,  Xiaochao Que ,  Haijing Liu ,  Yong Lu ,  Mark W. Verbrugge ,  Meiyuan Wu

    IPC: H01M10/0562 ,  H01M10/0525

    Abstract: A sulfide-impregnated solid-state battery is provided. The battery comprises a cell core constructed by basic cell units. Each unit comprises a positive electrode comprising a cathode layer and a positive meshed current collector comprising a conductive material which is further coated by oxide-based solid-state electrolyte. The cell unit further comprises a negative electrode comprising an anode layer and a negative meshed current collector comprising a conductive material which is further coated by oxide-based solid-state electrolyte. The positive and negative electrodes are stacked together to form the cell unit. The two coated oxide-based solid electrolyte layers are disposed between the positive and negative electrode as dual separators. Such a cell unit may be repeated or connected in parallel or bipolar stacking to form the cell core to achieve a desired battery voltage, power and energy. The cell core comprises a sulfide-based solid-state electrolyte dispersed in the pore structures of cell core.

    DUAL-LAYER ELECTROLYTE
    27.
    发明申请
    DUAL-LAYER ELECTROLYTE 有权

    公开(公告)号：US20250062395A1

    公开(公告)日：2025-02-20

    申请号：US18474540

    申请日：2023-09-26

    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

    Inventor： Qili Su ,  Zhe Li ,  Haijing Liu ,  Yong Lu ,  Xiayin Yao ,  Dingcheng Guo

    IPC: H01M10/0562 ,  H01M4/38 ,  H01M4/62

    Abstract: An electrolyte for use in an electrochemical cell. The electrolyte includes a first layer having a thickness of about 1 μm to about 40 μm and a second layer having a thickness of about 5 μm to about 60 μm. The first layer includes, based on a total weight of the first layer, about 10 wt. % to about 40 wt. % of first solid-state electrolyte particles, about 1 wt. % to about 15 wt. % of lithium, and about 1 wt. % to about 65 wt. % of fibrils including carbon and fluorine, The second layer includes second solid-state electrolyte particles.

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