Sumitomo Electric Industries, Limited

Daiso Co., Ltd.

Shinzo Kohjiya

Takafumi Uemiya

Masayoshi Watanabe

Katsuhito Miura

Yoshitaka Osawa

Shigeru Shoji

Yasuo Matoba

Masahiro Irie

Takahiro Sakashita

Shinzo Yamashita

Yuko Ikeda

A polymer solid electrolyte which is superior to a conventional solid electrolyte in ion conductivity and also superior in processing characteristics, molding characteristics, mechanical strength and flexibility. The polymer solid electrolyte produced by formulating a soluble electrolyte salt compound to a polyether copolymer having an oligooxyethylene side chain and an electrolyte salt compound which is soluble in the polyether copolymer, the polyether polymer being a solid random copolymer having a main chain structure consisting of 5 to 30 molar % of a structural unit of the following formula (1) and 95 to 70 molar % of a structural unit of the following formula (2), and the polyether polymer having a polymerization degree n of an oxyethylene unit of the side chain part of the formula (1) of 1 to 12, a number-average molecular weight of 100,000 to 2,000,000, a glass transition point measured by a differential scanning calorimeter (DSC) of not more than -60.degree. C. and a melting calorie of not more than 70 J/g. ##STR1##

Polymer solid electrolyte

A functional elastomer in which a viologen unit is introduced into a principal polymeric chain through cationic polymerization by using a bifunctional initiator, said elastomer being represented by the formula ##STR1## wherein X represents polyether and A represents an anion.

Functional elastomer

Growing community of inventors

Kyoto, Japan

Shinzo Kohjiya