Electrolyte compositions for batteries

    公开(公告)号:US10461366B1

    公开(公告)日:2019-10-29

    申请号:US14800380

    申请日:2015-07-15

    IPC分类号: H01M10/0569 H01M10/052

    摘要: An energy storage device includes 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. The electrolyte includes at least one of a fluorine-containing cyclic carbonate, a fluorine-containing linear carbonate, and a fluoroether. At least one of the first electrode and the second electrode includes a self-supporting composite material film. The composite material film has 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.