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    GEL ELECTROLYTE SYSTEM FOR SOLID STATE BATTERY
    2.
    发明申请
    GEL ELECTROLYTE SYSTEM FOR SOLID STATE BATTERY 有权

    公开(公告)号：US20230046608A1

    公开(公告)日：2023-02-16

    申请号：US17710900

    申请日：2022-03-31

    申请人： GM GLOBAL TECHNOLOGY OPERATIONS LLC

    发明人： Qili SU ,  Zhe LI ,  Mengyan HOU ,  Yong LU ,  Haijing LIU

    IPC分类号： H01M10/0565 ,  H01M10/0525 ,  H01M4/62

    摘要： An electrochemical cell that cycles lithium ions is provided. The electrochemical cell includes a first electrode, a second electrode, and an electrolyte layer disposed between the first electrode and the second electrode. The first electrode includes a first plurality of solid-state electroactive material particles and a first polymeric gel electrolyte, where the first polymeric gel electrolyte includes a first additive. The second electrode includes a second plurality of solid-state electroactive material particles and a second polymeric gel electrolyte that is different from the first polymeric gel electrolyte, where the second polymeric gel electrolyte includes a second additive. The electrolyte layers include a third polymeric gel electrolyte that is different from both the first polymeric gel electrolyte and the second polymeric gel electrolyte.

    SOLID-STATE ELECTRODES AND METHODS FOR MAKING THE SAME
    3.
    发明申请
    SOLID-STATE ELECTRODES AND METHODS FOR MAKING THE SAME 有权

    公开(公告)号：US20210020929A1

    公开(公告)日：2021-01-21

    申请号：US16514193

    申请日：2019-07-17

    申请人： GM GLOBAL TECHNOLOGY OPERATIONS LLC

    发明人： Dewen KONG ,  Yong LU ,  Mengyan HOU ,  Zhe LI ,  Haijing LIU

    IPC分类号： H01M4/40 ,  H01M4/80 ,  H01M10/0525 ,  H01M4/62 ,  H01M4/66 ,  H01M4/505

    摘要： Solid-state electrodes and methods of forming solid-state electrodes and batteries are provided. The method includes contacting an electrode precursor with a liquid. The liquid includes one or more precursors of an ionically conductive polymer. The electrode precursor includes a plurality of electroactive particles and a plurality of electrolyte particles disposed on a current collector. A plurality of interparticle pores exists between the electroactive and electrolyte particles. When the electrode precursor is contacted with the liquid, the liquid flows into the interparticle pores. The one or more precursors of the ionically conductive polymer are electropolymerized so as to cause the formation of a polymeric matrix (including the ionically conductive polymer) that surrounds and embeds the plurality of electroactive particles and the plurality of electrolyte particles so as to form the solid-state electrode.

    METHODS OF MANUFACTURING BIPOLAR SOLID-STATE BATTERIES
    6.
    发明申请
    METHODS OF MANUFACTURING BIPOLAR SOLID-STATE BATTERIES 有权

    公开(公告)号：US20230025830A1

    公开(公告)日：2023-01-26

    申请号：US17697135

    申请日：2022-03-17

    申请人： GM GLOBAL TECHNOLOGY OPERATIONS LLC

    发明人： Qili SU ,  Mengyan HOU ,  Zhe LI ,  Haijing LIU

    IPC分类号： H01M10/0585 ,  H01M4/04 ,  H01M4/36 ,  H01M4/62 ,  H01M10/0565

    摘要： The present disclosure provides a method for forming a solid-state battery. The method includes stacking two or more cell units, where each cell unit is formed by substantially aligning a first electrode and a second electrode, where the first electrode includes one or more first electroactive material layers disposed on or adjacent to one or more surfaces of a releasable substrate and the second electrode includes one or more second electroactive material layers disposed on or adjacent to one or more surfaces of a current collector; disposing an electrolyte layer between exposed surfaces of the first electrode and the second electrode; and removing the releasable substrate to form the cell unit.

    METHODS OF FABRICATING BIPOLAR SOLID STATE BATTERIES
    7.
    发明申请
    METHODS OF FABRICATING BIPOLAR SOLID STATE BATTERIES 有权

    公开(公告)号：US20230015143A1

    公开(公告)日：2023-01-19

    申请号：US17688445

    申请日：2022-03-07

    申请人： GM GLOBAL TECHNOLOGY OPERATIONS LLC

    发明人： Qili SU ,  Mengyan HOU ,  Meiyuan WU ,  Haijing LIU

    IPC分类号： H01M10/0562 ,  H01M10/0525 ,  H01M10/0583 ,  H01M10/04 ,  H01M4/04

    摘要： A method for forming a solid-state battery is provided. The method includes disposing one or more cell units along a continuous current collector to form a stack precursor. In some examples, disposing of the one or more cell units along the continuous current collector includes concurrently disposing the one or more cell units along the continuous current collector and winding the continuous current collector to form a stack. In other examples, the continuous current collector is a z-folded current collector and the disposing the one or more cell units along the continuous current collector includes inserting the one or more cell units into one or more pockets formed by folds of the continuous current collector. The method may further include applying heat, pressure, or a combination of heat and pressure to the stack precursor to form a compressed stack, and cutting the continuous current collector to form the solid-state battery.

    BIPOLAR SOLID-STATE BATTERY WITH ENHANCED INTERFACIAL CONTACT
    9.
    发明申请
    BIPOLAR SOLID-STATE BATTERY WITH ENHANCED INTERFACIAL CONTACT 有权

    公开(公告)号：US20220263055A1

    公开(公告)日：2022-08-18

    申请号：US17550507

    申请日：2021-12-14

    申请人： GM GLOBAL TECHNOLOGY OPERATIONS LLC

    发明人： Mengyan HOU ,  Qili SU ,  Meiyuan WU ,  Haijing LIU

    IPC分类号： H01M4/04 ,  H01M10/0585 ,  H01M10/0565

    摘要： A method for forming a bipolar solid-state battery may include preparing a plurality of freestanding gels each comprising a polymer, a solvent, and a lithium salt and, also, positioning a first freestanding gel between a first electrode and a second electrode and a second freestanding gel between the second electrode and a third electrode. Each of the first electrode, the second electrode, and the third electrode may include a plurality of electroactive particles. The method may also include infiltrating at least a portion of the first free-standing gel into a space between particles of the first electrode and the second electrode and at least a portion of the second free-standing gel into a space between the particles of second electrode and the third electrode.

    CAPACITOR-ASSISTED ELECTROCHEMICAL DEVICES HAVING HYBRID STRUCTURES
    10.
    发明申请
    CAPACITOR-ASSISTED ELECTROCHEMICAL DEVICES HAVING HYBRID STRUCTURES 有权

    公开(公告)号：US20210135224A1

    公开(公告)日：2021-05-06

    申请号：US17084782

    申请日：2020-10-30

    申请人： GM GLOBAL TECHNOLOGY OPERATIONS LLC

    发明人： Mengyan HOU ,  Haijing LIU ,  Qili SU ,  Xiaochao QUE

    IPC分类号： H01M4/62 ,  H01M2/26

    摘要： A hybrid electrochemical device including at least two electrically connected solid-state electrochemical cells is provided. Each electrochemical cell includes a first outer electrode having a first current collector and a first electroactive layer, a second outer electrode having a second current collector and a second electroactive layer, and one or more intervening electrodes disposed between the electroactive layers. At least one of the intervening electrodes includes one or more capacitor additives. The first outer electrode is electrically connected to at least one of the intervening electrodes in a first electrical configuration. The second outer electrode is electrically connected to at least one of the intervening electrodes in a second electrical configuration. The at least two electrochemical cells are electrically connected in a third electrical configuration. The first and second electrical configurations are the same and the third electrical configuration is distinct from the first and second electrical configurations.