SILOXANE COPOLYMER AND SOLID POLYMER ELECTROLYTE COMPRISING SUCH SILOXANE COPOLYMERS

摘要

A copolymer comprising a first monomer a methyl siloxane backbone with a side group comprising a polyether and a polymerizable ethylenic side group; and a second monomer a hydroxyl-substituted alkyl acrylate or methacrylate is presented. The copolymer may be used to form a solid polymer electrolyte composition comprising; (i) the copolymer (ii) a plasticizer, and (iii) a salt. The solid polymer electrolyte may be used to form a solid polymer electrolyte film, which may be suitable for use in electrochemical devices (e.g., lithium ion batteries) of various sizes and for a wide range of applications.