ELECTROLYTE SOLUTION FOR A LITHIUM ION CELL

    公开(公告)号:US20210013545A1

    公开(公告)日:2021-01-14

    申请号:US16921323

    申请日:2020-07-06

    摘要: An electrolyte solution for a lithium-ion cell includes at least one organic carbonate solvent, at least one lithium salt including a non-coordinating anion and at least one polyfluorinated alkoxy olefin according to the general formula I, the general formula II, or the general formula III: I: RaRbC═CH—O—R, II: RaRbC═CH—O—CHRa′Rb′, III: RaRbC═CH—O—Rc—O—CH═CRa′Rb′, wherein Ra and Ra′ are each independently a fluorinated alkyl group having 1 or 2 carbon atoms, Rb and Rb′ are each independently F, Cl, Br or H, and R is CnHxFy, wherein n is an integer from 1 to 6, x and y are each independently integers from 0 to 13, and x+y=2n+1 or x+y=2n−1, and Rc is CkH(2k+1), wherein k is an integer from 2 to 4.