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    POLYMERIC GEL ELECTROLYTE SYSTEMS FOR HIGH-POWER SOLID-STATE BATTERY
    12.
    发明申请
    POLYMERIC GEL ELECTROLYTE SYSTEMS FOR HIGH-POWER SOLID-STATE BATTERY 有权

    公开(公告)号：US20230074112A1

    公开(公告)日：2023-03-09

    申请号：US17710213

    申请日：2022-03-31

    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

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

    IPC: H01M10/0565 ,  H01M10/0525

    Abstract: The present disclosure provides a polymeric gel electrolyte for an electrochemical cell that cycles lithium ions. The polymeric gel electrolyte includes greater than or equal to about 0.1 wt. % to less than or equal to about 10 wt. % of a non-lithium salt. The non-lithium salt includes a non-lithium cation having an ion radius that is greater than or equal to about 80% to less than or equal to about 250% of an ion radius of a lithium ion. The polymeric gel electrolyte further includes greater than or equal to about 50 wt. % to less than or equal to about 99.9 wt. % of a non-volatile gel. The non-volatile gel includes greater than or equal to 0 wt. % to less than or equal to about 50 wt. % of a polymeric host and greater than or equal to about 5 wt. % to less than or equal to about 100 wt. % of a liquid electrolyte.

    SOLID STATE BATTERY WITH UNIFORMLY DISTRIBUTED ELECTROLYTE, AND METHODS OF FABRICATION RELATING THERETO
    13.
    发明申请
    SOLID STATE BATTERY WITH UNIFORMLY DISTRIBUTED ELECTROLYTE, AND METHODS OF FABRICATION RELATING THERETO 有权

    公开(公告)号：US20220181598A1

    公开(公告)日：2022-06-09

    申请号：US17543160

    申请日：2021-12-06

    Applicant: GM Global Technology Operations LLC

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

    IPC: H01M4/04

    Abstract: The present disclosure relates to a solid-state electrochemical cell having a uniformly distributed solid-state electrolyte and methods of fabrication relating thereto. The method may include forming a plurality of apertures within the one or more solid-state electrodes; impregnating the one or more solid-state electrodes with a solid-state electrolyte precursor solution so as to fill the plurality of apertures and any other void or pores within the one or more electrodes with the solid-state electrolyte precursor solution; and heating the one or more electrodes so as to solidify the solid-state electrolyte precursor solution and to form the distributed solid-state electrolyte.

    SOLID-STATE BIPOLAR BATTERY INCLUDING IONOGEL
    14.
    发明申请
    SOLID-STATE BIPOLAR BATTERY INCLUDING IONOGEL 有权

    公开(公告)号：US20220123352A1

    公开(公告)日：2022-04-21

    申请号：US17481179

    申请日：2021-09-21

    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

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

    IPC: H01M10/056 ,  H01M10/0525 ,  H01M4/62 ,  H01M4/66

    Abstract: A high-temperature stable solid-state bipolar battery is provided. The battery includes two or more electrodes, one or more solid-state electrolyte layers, and an ionogel disposed within void spaces within the battery. Each electrode includes a plurality of solid-state electroactive particles. Each solid-state electrolyte layer includes a plurality of solid-state electrolyte particles and a first solid-state electrolyte layer of the one or more solid-state electrolyte layers may be disposed between a first electrode and a second electrode of the two or more electrodes. The ionogel is disposed within void spaces between the two or more electrodes, the solid-state electroactive particles of the two or more electrodes, the solid-state electrolyte particles of the one or more solid-state electrolyte layers, and the one or more solid-state electrolyte layers, such that the battery has an reduced interparticle porosity. The ionogel may have an ionic conductivity between about 0.1 mS/Cm and about 10 mS/cm.

    Thin Solid-State Electrolyte Having High Ionic Conductivity
    17.
    发明公开
    Thin Solid-State Electrolyte Having High Ionic Conductivity 审中-公开

    公开(公告)号：US20230299342A1

    公开(公告)日：2023-09-21

    申请号：US17884226

    申请日：2022-08-09

    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

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

    IPC: H01M10/0565 ,  H01M10/0525

    CPC classification number: H01M10/0565 ,  H01M10/0525 ,  H01M2300/0082

    Abstract: A free-standing electrolyte layer for use in an electrochemical cell is provided. The free-standing electrolyte layer includes a plurality of solid-state electrolyte particles, a (first) ionic liquid that surrounds each solid-state electrolyte particle of the plurality of solid-state electrolyte particles, and a plurality of polytetrafluoroethylene fibrils that provides a structural framework for the solid-state electrolyte particles. The free-standing electrolyte layer has an ionic conductivity greater than or equal to about 0.1 mS/cm at 40° C., and a thickness greater than or equal to about 5 micrometers to less than or equal to about 500 micrometers. Each of the polytetrafluoroethylene fibrils of the plurality of polytetrafluoroethylene fibrils has an average length of greater than or equal to about 2 micrometers to less than or equal to about 100 micrometers. The electrochemical cell may include one or more electrodes including a (second) ionic liquid and/or plurality of polytetrafluoroethylene (PTFE) fibrils.

    ARGYRODITE SOLID ELECTROLYTES FOR SOLID-STATE BATTERIES AND METHODS OF MAKING THE SAME
    18.
    发明申请
    ARGYRODITE SOLID ELECTROLYTES FOR SOLID-STATE BATTERIES AND METHODS OF MAKING THE SAME 有权

    公开(公告)号：US20230024667A1

    公开(公告)日：2023-01-26

    申请号：US17707524

    申请日：2022-03-29

    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

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

    IPC: H01M10/0562 ,  H01M4/04

    Abstract: The present disclosure provides a method for making a solid-state argyrodite electrolyte represented by Li6PS5X (where X is selected from chloride, bromide, iodine, or a combination thereof) having an ionic conductivity greater than or equal to about 1.0×10−4 S/cm to less than or equal to about 10×10−3 S/cm at about 25° C. The method may include contacting a first suspension and a first solution to form a precursor, where the first suspension is a Li3PS4 suspension including an ester solvent and the first solution is a Li2S and LiX (where X is selected from chloride, bromide, or iodine, or a combination thereof) solution including an alcohol solvent; and removing the ester solvent and the alcohol solvent from the precursor to form the solid-state argyrodite electrolyte.

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