There is provided a fluorine-containing polymer solid electrolyte which has an excellent ion-conducting property, is high in oxidation resistance, is stable electrochemically and thermally, has sufficient strength and is applicable to various electrochemical devices. The electrolyte comprises (A) a non-crystalline fluorine-containing polymer having, in a trunk chain and/or side chain of the polymer molecule, a structural unit D having five or more chained units derived from a fluorine-containing ether, (B) an electrolytic compound and (C) a solvent, and has an ionic conductivity of from 10
−10
to 10
1
S/cm measured at 25° C. by an alternating current complex impedance method. The electrolyte is useful for various electrochemical devices.
提供一种含
氟聚合物固态电解质,具有优异的离子传导性能,高
氧化抗性,电
化学和热稳定性稳定,具有足够的强度,适用于各种电
化学设备。该电解质包括(A)一种非晶态含
氟聚合物,其在
聚合物分子的主链和/或侧链中具有从含
氟醚中衍生出的具有五个或更多链式单元的结构单元D,(B)电解质化合物和(C)溶剂,并且具有从10-10到101S / cm的离子电导率,通过交流复合阻抗法在25°C下测量。该电解质适用于各种电
化学设备。