Theorganic/inorganicnanocompositespolymerelectrolytesweredesignedandsynthesized.Theorganic/inorganicnanocom-positesmembranematerialsandtheirlithiumsaltcomplexeshavebeenfoundthermallystablebelow200℃.Theconductivityoftheorganic/inorganicnanocompositespolymerelectrolytespreparedatroomtemperaturewasatmagnituderangeof10-6S/cm.