| abstract |
(57) [Summary] [Structure] The polymer solid electrolyte of the present invention is a polyether complex comprising a random copolymer containing polyethylene oxide and polytetrahydrofuran as polymerization components, and an alkali metal salt. Is a polyether complex crosslinked with an isocyanate crosslinking agent. [Effect] Since it is excellent in film forming processability and has high conductivity, when it is used as a polymer solid electrolyte in a battery, an ECD cell, etc., it can be made thin and flexible. |