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    SOLID-STATE BATTERY WITH SOLID ELECTROLYTE SURFACE TOPOGRAPHY DESIGN
    31.
    发明申请
    SOLID-STATE BATTERY WITH SOLID ELECTROLYTE SURFACE TOPOGRAPHY DESIGN 有权

    公开(公告)号：US20210057776A1

    公开(公告)日：2021-02-25

    申请号：US16544992

    申请日：2019-08-20

    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

    Inventor： Yong Lu ,  Zhe Li ,  Dewen Kong

    IPC: H01M10/058 ,  H01M10/0525

    Abstract: A solid-state battery cell, such as a lithium-ion cell, is assembled with a solid electrolyte layer member positioned between co-extensive surface layers of an anode active layer member and a cathode active material layer member. At least one of the engaging surfaces of the solid electrolyte layer is not flat. It is formed with a topographical pattern comprising recesses in a flat surface, or a surface of projections and recesses, and placed against a compatibly-shaped, mating surface of the anode layer and/or the cathode layer. The re-shaping of the surface(s) of the solid electrolyte layer and adjoining electrode layer(s) is to significantly increase the effective contact area with the facing layer of electrode material and improve the conduction of ions across the interface. A thin film of interlayer material may be placed between the surfaces of the facing cell members with the specially shaped adjacent faces.

    ELECTRODE WITH ENHANCED STATE OF CHARGE ESTIMATION
    33.
    发明申请
    ELECTRODE WITH ENHANCED STATE OF CHARGE ESTIMATION 有权

    公开(公告)号：US20210036385A1

    公开(公告)日：2021-02-04

    申请号：US16598244

    申请日：2019-10-10

    Applicant: GM Global Technology Operations LLC

    Inventor： Yong Lu ,  Dewen Kong ,  Mengyan Hou ,  Zhe Li ,  Haijing Liu

    IPC: H01M10/48 ,  H01M10/0525 ,  H01M4/1391 ,  H01M4/131

    Abstract: An anode electrode with enhanced state of charge estimation is provided. The anode electrode comprises anode layer and a negative current collector. The negative current collector has a first side and a second side. The anode layer comprises lithium-titanium oxide and a second anode material (e.g. niobium-titanium oxide) disposed on at least one of the first and second sides of the negative current collector with single-layer or layer-by-layer coated structures. The second anode material (e.g. niobium-titanium oxide) can be physically blended with lithium-titanium oxide or be at least partially coated on the surface of lithium-titanium oxide or their combinations. The anode electrode further comprises a binder and a conductive carbon.

    CAPACITOR-ASSISTED SOLID-STATE BATTERY WITH QUASI-SOLID-STATE ELECTROLYTE
    34.
    发明申请
    CAPACITOR-ASSISTED SOLID-STATE BATTERY WITH QUASI-SOLID-STATE ELECTROLYTE 审中-公开

    公开(公告)号：US20200036053A1

    公开(公告)日：2020-01-30

    申请号：US16390782

    申请日：2019-04-22

    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

    Inventor： Zhe Li ,  Dave G. Rich ,  Haijing Liu ,  Dewen Kong ,  Sherman H. Zeng

    IPC: H01M10/42 ,  H01M10/0562 ,  H01M10/0525 ,  H01M10/0565

    Abstract: A capacitor-assisted, solid-state lithium-ion battery is formed by replacing at least one of the electrodes of the battery with a capacitor electrode of suitable particulate composition for the replaced battery particulate anode or cathode material. The solid-state electrodes typically contain quasi-solid-state electrode material and are separated with a layer of quasi-solid-state electrolyte material. In another embodiment the capacitor anode or cathode particles may be mixed with lithium-ion battery anode or cathode particles respectively. Preferably, the battery comprises at least two positively-charged electrodes and two negatively-charged electrodes, and the location, number and compositions of the capacitor material electrode(s) may be selected to provide a desired combination of energy and power.

    DUAL-LAYER ELECTROLYTE
    36.
    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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