▎ 摘　　要

NOVELTY - A temperature sensitive membrane comprises composite material comprising polymer matrix layer containing poly-sulfobetaine and substrate layer containing graphene oxide. USE - Temperature sensitive membrane for energy storing element e.g. battery or supercapacitor (all claimed). ADVANTAGE - The temperature sensitive membrane uses temperature response behavior of polysulfobetaine to realize the reversible control of the lithium ion transmission of the membrane at different temperatures to suppress heat release side reactions and thermal runaway. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for the following: (1) preparation of the temperature sensitive membrane, which involves hydroxylating graphene oxide, brominating and grafting polysulfobetaine on the graphene oxide surface, dispersing in solvent and polymerizing to form the composite material; and (2) packaging structure.