| abstract |
PROBLEM TO BE SOLVED: To provide a solid polymer electrolyte having high ionic conductivity, excellent electrochemical stability, and also excellent stability in a charged state. Another object is to provide a secondary battery using such a solid polymer electrolyte. A polymer solid electrolyte comprising a polymer compound containing a metal salt of Group Ia of the periodic table and an acidic inorganic substance. And a secondary battery using the polymer solid electrolyte. |