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    VOLTAGE-MODIFIED HYBRID ELECTROCHEMICAL CELL DESIGN
    23.
    发明申请
    VOLTAGE-MODIFIED HYBRID ELECTROCHEMICAL CELL DESIGN 有权

    公开(公告)号：US20210110980A1

    公开(公告)日：2021-04-15

    申请号：US17069932

    申请日：2020-10-14

    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

    Inventor： Qili SU ,  Haijing LIU ,  Meiyuan WU ,  Dewen KONG ,  Mengyan HOU

    IPC: H01G11/08 ,  H01G11/28 ,  H01G11/32 ,  H01G11/68 ,  H01G11/46 ,  H01G11/54 ,  H01G11/82

    Abstract: Hybrid lithium-ion electrochemical cells include a first electrode having a first polarity and a first electroactive material that reversibly cycles lithium ions having a first maximum operational voltage and a second electrode having the first polarity with a second electroactive material having a second maximum operational voltage. A difference between the second and first maximum operational voltages defines a predetermined voltage difference. Also included are at least one third electrode including a third electroactive material that reversibly cycles lithium ions having a second polarity opposite to the first polarity, a separator, and electrolyte. A voltage modification component (e.g., diode) is in electrical communication with the first and the second electrodes. In a first operational state corresponding to charging, the at least one voltage modification component is configured to induce a voltage drop corresponding to the predetermined voltage difference providing high power density and high energy density hybrid lithium-ion electrochemical cells.

    ELECTROLYTE MEMBRANES FOR BATTERIES THAT CYCLE LITHIUM IONS AND METHODS OF MANUFACTURING THE SAME
    24.
    发明申请
    ELECTROLYTE MEMBRANES FOR BATTERIES THAT CYCLE LITHIUM IONS AND METHODS OF MANUFACTURING THE SAME 有权

    公开(公告)号：US20250140900A1

    公开(公告)日：2025-05-01

    申请号：US18521081

    申请日：2023-11-28

    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

    Inventor： Xin ZHANG ,  Zhe LI ,  Qili SU ,  Thomas A. YERSAK ,  Haijing LIU

    IPC: H01M10/056 ,  H01M10/052

    Abstract: An electrolyte membrane for a battery that cycles lithium ions includes a sulfide-based solid electrolyte, a polymer binder, an inorganic filler, an inorganic lithium salt, and an ionic liquid. The sulfide-based solid electrolyte includes lithium sulfide (Li2S) and at least one element selected from the group consisting of phosphorus (P), tin (Sn), silicon (Si), germanium (Ge), boron (B), gallium (Ga), and aluminum (Al). The ionic liquid includes substantially equimolar amounts of a cation and an anion. The cation includes a complex of lithium (Li+) and an ethylene glycol dimethyl ether, an imidazolium ion, a piperidinium ion, a pyrrolidinium ion, an ammonium ion, a phosphonium ion, or a combination thereof. The anion includes an arsenate ion, a phosphate ion, a sulfonylimide ion, a borate ion, a chlorate ion, or a combination thereof.

    SOLID-STATE INTERLAYER FOR SOLID-STATE BATTERY
    30.
    发明公开
    SOLID-STATE INTERLAYER FOR SOLID-STATE BATTERY 审中-公开

    公开(公告)号：US20230268547A1

    公开(公告)日：2023-08-24

    申请号：US17828898

    申请日：2022-05-31

    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

    Inventor： Qili SU ,  Zhe LI ,  Xiaochao QUE ,  Haijing LIU

    IPC: H01M10/056 ,  H01M10/0525

    CPC classification number: H01M10/056 ,  H01M10/0525 ,  H01M2220/20

    Abstract: The present disclosure provides an electrochemical cell that cycles lithium ions, where the electrochemical cell includes an electrode, a solid-state electrolyte layer, and a solid-state interlayer disposed between the electrode and the solid-state electrolyte layer. The solid-state interlayer includes a plurality of solid-state electrolyte particles. In certain instances, the solid-state interlayer includes a plurality of through-holes dispersed therewithin. The through-holes have an average diameter between about 0.05 to about 100 micrometers. The solid-state interlay covers between about 50% and about 100% of a total surface area of the electrode. In each variation, solid-state interlayer has a thickness greater than or equal to about 0.1 to less than or equal to about 8 micrometers, and the electrochemical cell may include a polymeric gel electrolyte that at least partially fills voids between solid-state electroactive particle and solid-state electrolyte particles.

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