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    ELECTROLYTE COMPOSITIONS FOR BATTERIES
    4.
    发明申请
    ELECTROLYTE COMPOSITIONS FOR BATTERIES 有权

    公开(公告)号：US20220077500A1

    公开(公告)日：2022-03-10

    申请号：US17528987

    申请日：2021-11-17

    申请人： Enevate Corporation

    发明人： Heidi Leighette Anderson ,  Benjamin Yong Park ,  Hong Gan ,  Sung Won Choi

    IPC分类号： H01M10/0569 ,  H01M10/052

    摘要： An energy storage device comprising a first electrode and a second electrode, wherein at least one of the first electrode and the second electrode comprises a self-supporting composite material film, a separator between the first electrode and the second electrode, and an electrolyte in contact with the first electrode, the second electrode, and the separator, wherein the electrolyte comprises at least one of a fluorine-containing cyclic carbonate, a fluorine-containing linear carbonate, and a fluoroether. The composite material film having greater than 0% and less than about 90% by weight of silicon particles, and greater than 0% and less than about 90% by weight of one or more types of carbon phases. At least one of the one or more types of carbon phases can be a substantially continuous phase that holds the composite material film together such that the silicon particles are distributed throughout the composite material film.

    Electrolyte compositions for batteries
    7.
    发明授权
    Electrolyte compositions for batteries 有权

    公开(公告)号：US11183712B2

    公开(公告)日：2021-11-23

    申请号：US16574817

    申请日：2019-09-18

    申请人： Enevate Corporation

    发明人： Heidi Leighette Anderson ,  Benjamin Yong Park ,  Hong Gan ,  Sung Won Choi

    IPC分类号： H01M10/0569 ,  H01M10/052

    摘要： An energy storage device comprising a first electrode and a second electrode, a separator between the first electrode and the second electrode, and an electrolyte in contact with the first electrode, the second electrode, and the separator, wherein the electrolyte comprises at least one of a fluorine-containing cyclic carbonate, a fluorine-containing linear carbonate, and a fluoroether. The electrolyte may be substantially free of non-fluorine containing cyclic carbonates.

    Method And System For Silicon-Dominant Lithium-Ion Cells With Controlled Utilization of Silicon
    9.
    发明申请
    Method And System For Silicon-Dominant Lithium-Ion Cells With Controlled Utilization of Silicon 有权

    公开(公告)号：US20210104724A1

    公开(公告)日：2021-04-08

    申请号：US16594508

    申请日：2019-10-07

    申请人： Enevate Corporation

    发明人： Benjamin Park ,  Ian Browne ,  Sung Won Choi ,  Fred Bonhomme

    IPC分类号： H01M4/04 ,  H01M10/44 ,  H01M4/38 ,  H01M4/587 ,  H01M4/36 ,  H01M10/0525

    摘要： Systems and methods for silicon-dominant lithium-ion cells with controlled utilization of silicon may include a cathode, an electrolyte, and an anode, where the anode has an active material comprising more than 50% silicon. The battery may be charged by lithiating silicon while not lithiating carbon. The active material may comprise more than 70% silicon. A voltage of the anode during discharge of the battery may remain above a minimum voltage at which silicon can be lithiated. The anode may have a specific capacity of greater than 3000 mAh/g. The battery may have a specific capacity of greater than 1000 mAh/g. The anode may have a greater than 90% initial Coulombic efficiency and may be polymer binder free. The battery may be charged at a 10 C rate or higher. The battery may be charged at temperatures below freezing without lithium plating. The electrolyte may comprise a liquid, solid, or gel.