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    WELD-FREE BIPOLAR SOLID-STATE BATTERY CELL
    1.
    发明公开
    WELD-FREE BIPOLAR SOLID-STATE BATTERY CELL 审中-公开

    公开(公告)号：US20240072390A1

    公开(公告)日：2024-02-29

    申请号：US18123008

    申请日：2023-03-17

    申请人： GM GLOBAL TECHNOLOGY OPERATIONS LLC

    发明人： Jingyuan LIU ,  Sherman H. Zeng ,  Zhe Li ,  Qili Su ,  Haijing Liu

    IPC分类号： H01M50/536 ,  H01M50/54 ,  H01M50/548

    CPC分类号： H01M50/536 ,  H01M50/54 ,  H01M50/548

    摘要： A bipolar battery cell includes a stack including N current collectors, M anode electrodes, S separators, and C cathode electrodes, where N, M, S and C are integers greater than one. A first positioning member is arranged on one side of the stack and includes a first planar portion and a first slot in the first planar portion. A first one of the C current collectors extends through the first slot in the first planar portion and is folded. The first positioning member further includes a first rail portion and a second rail portion. The first rail portion and the second rail portion extend from the first planar portion. A first external tab is arranged between the first rail portion and the second rail portion and connected to the first one of the C current collectors.

    LITHIUM BATTERY INCLUDING COMPOSITE FLAME RETARDANT PARTICLES
    2.
    发明申请
    LITHIUM BATTERY INCLUDING COMPOSITE FLAME RETARDANT PARTICLES 有权

    公开(公告)号：US20220200039A1

    公开(公告)日：2022-06-23

    申请号：US17128905

    申请日：2020-12-21

    申请人： GM GLOBAL TECHNOLOGY OPERATIONS LLC

    发明人： Xingcheng Xiao ,  Mei Cai ,  Sherman H. Zeng

    IPC分类号： H01M10/0525 ,  H01M4/36 ,  H01M50/414 ,  H01M50/46 ,  H01M50/491 ,  H01M50/446

    摘要： An electrochemical cell for a lithium battery includes a negative electrode, a positive electrode, a polymeric separator, and composite flame retardant particles including a particulate host material and a flame retardant material carried by the particulate host material. The composite flame retardant particles may be positioned within the electrochemical cell along a lithium-ion transport path or an electron transport path that extends through or between one or more components of the electrochemical cell. The composite flame retardant particles may be positioned within polymeric portions of a laminate structure that defines a housing in which the electrochemical cell is enclosed.

    Systems and methods for lithium-ion cell manufacturing to reduce cell contamination
    3.
    发明授权
    Systems and methods for lithium-ion cell manufacturing to reduce cell contamination 有权

    公开(公告)号：US10461318B2

    公开(公告)日：2019-10-29

    申请号：US15383118

    申请日：2016-12-19

    申请人： GM GLOBAL TECHNOLOGY OPERATIONS LLC

    发明人： Sherman H. Zeng ,  Zhiqiang Yu ,  Dewen Kong ,  Haijing Liu

    IPC分类号： H01M4/1391 ,  H01M4/04 ,  H01M10/0525 ,  H01M4/505

    摘要： A system for forming an electrode for a lithium-ion battery cell includes an electrode material, a material-supply mechanism, a wetting mechanism, a debris-generating tool, and a conditioner. The material-supply mechanism is configured to deliver the electrode material. The wetting mechanism is configured to receive the electrode material from the material-supply mechanism and apply a solution to the electrode material to produce a wet precursor. The debris-generating tool is configured to remove a portion of the electrode material from the wet precursor to form a pre-electrode. The conditioner is configured to eliminate the solution from the pre-electrode and thereby form the electrode.

    Capacitor-assisted solid-state battery with quasi-solid-state electrolyte
    5.
    发明授权
    Capacitor-assisted solid-state battery with quasi-solid-state electrolyte 有权

    公开(公告)号：US11171365B2

    公开(公告)日：2021-11-09

    申请号：US16390782

    申请日：2019-04-22

    申请人： GM GLOBAL TECHNOLOGY OPERATIONS LLC

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

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

    摘要： 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.