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    POLYMERIC GEL ELECTROLYTE SYSTEMS FOR HIGH-POWER SOLID-STATE BATTERY
    32.
    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.

    METHODS OF MANUFACTURING BIPOLAR SOLID-STATE BATTERIES
    33.
    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

    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

    Inventor： Qili SU ,  Mengyan HOU ,  Zhe LI ,  Haijing LIU

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

    Abstract: 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
    34.
    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

    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

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

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

    Abstract: 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.

    SOLID-STATE BIPOLAR BATTERY INCLUDING IONOGEL
    35.
    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.

    HIGH POWER CATHODE ELECTRODES FOR SOLID-STATE BATTERIES
    36.
    发明申请
    HIGH POWER CATHODE ELECTRODES FOR SOLID-STATE BATTERIES 有权

    公开(公告)号：US20250149539A1

    公开(公告)日：2025-05-08

    申请号：US18521119

    申请日：2023-11-28

    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

    Inventor： Qili SU ,  Zhe LI ,  Haijing LIU

    IPC: H01M4/131 ,  H01M4/02

    Abstract: A solid-state battery cell includes A anode electrodes including an anode active material layer arranged on an anode current collector, C cathode electrodes including a cathode active material layer arranged on a cathode current collector. The cathode active material layer includes cathode active material comprising particles including an outer layer of a material selected from a group consisting of LiNbO3, Li2ZrO3, Li3PO4, and combinations thereof. A solid electrolyte has a D50 size in a range from 4 μm to 12 μm. S separators are arranged between the A anode electrodes and the C cathode electrodes, where A, C, and S are integers greater than one.

    BI-CAPACITOR DESIGN FOR FAST STATE OF CHARGE EQUALIZATION
    39.
    发明公开
    BI-CAPACITOR DESIGN FOR FAST STATE OF CHARGE EQUALIZATION 审中-公开

    公开(公告)号：US20240270121A1

    公开(公告)日：2024-08-15

    申请号：US18359411

    申请日：2023-07-26

    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

    Inventor： Jingyuan LIU ,  Qili SU ,  Dave G. RICH ,  Si CHEN ,  James MORRISON ,  Dewen KONG ,  Haijing LIU

    IPC: B60L58/22 ,  B60L58/12 ,  B60L58/19

    CPC classification number: B60L58/22 ,  B60L58/12 ,  B60L58/19 ,  B60L2240/547

    Abstract: A state of charge (SOC) balancing system includes: first and second batteries; first and second capacitors; an SOC module configured to determine first and second SOCs of the first and second batteries, respectively; and a switching module configured to selectively, when the first SOC is greater than the second SOC: (i) electrically connect the first and second capacitors in parallel; (ii) electrically connect the first battery to the first and second capacitors while the first and second capacitors are electrically connected in parallel; (iii) electrically disconnect the first battery from the first and second capacitors; (iv) electrically connect the first and second capacitors in series; (v) electrically connect the second battery to the first and second capacitors while the first and second capacitors are electrically connected in series; and (vi) electrically disconnect the second battery from the first and second capacitors.

    COLUMNAR SILICON ANODE HAVING A CARBONACEOUS NETWORK AND METHODS OF FORMING THE SAME
    40.
    发明公开
    COLUMNAR SILICON ANODE HAVING A CARBONACEOUS NETWORK AND METHODS OF FORMING THE SAME 审中-公开

    公开(公告)号：US20240154095A1

    公开(公告)日：2024-05-09

    申请号：US18127444

    申请日：2023-03-28

    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

    Inventor： Zhe LI ,  Xingcheng XIAO ,  Qili SU ,  Yong LU

    IPC: H01M4/36 ,  H01M4/04 ,  H01M4/38 ,  H01M4/583 ,  H01M10/0525

    CPC classification number: H01M4/364 ,  H01M4/0404 ,  H01M4/0471 ,  H01M4/386 ,  H01M4/583 ,  H01M10/0525 ,  H01M2004/027

    Abstract: An electrochemical cell includes a first electrode that includes a first current collector and a first electroactive material layer disposed on or near the first current collector, a second electrode that includes a second current collector and a second electroactive material layer disposed on or near the second current collector, and a separating layer disposed between the first electroactive material layer and the second electroactive material layer. The second electroactive material layer includes a plurality of hierarchical silicon columns, each of the hierarchical silicon columns has a longest dimension perpendicular to a major axis of the second current collector. The second electroactive material layer also includes a carbonaceous network that at least partially fills interstices defined between hierarchical silicon columns of the plurality of hierarchical silicon columns. The carbonaceous network includes linked carbon atoms that define a plurality of pores.

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