FESTPOLYMERELEKTROLYT, BATTERIE UND FESTKÖRPERDOPPELSCHICHTKONDENSATOR DIESEN VERWENDEND UND VERFAHREN ZU DEREN HERSTELLUNG

摘要

A solid polymer electrolyte comprising a composite of: (a) a polymer obtainable from at least one compound which contains a structure derived from a polyhydric alcohol having three or more hydroxyl groups, at least two hydrogen atoms of said alcoholic hydroxyl groups being each replaced by a unit represented by a general formula (1): CH2=C(R<1>)C(=O)[O(CH2)x(CH(CH3))y]zNHC(=O)OR<2>- wherein R<1> represents a hydrogen or a methyl group; R<2> represents a divalent organic group containing at least one oxyalkylene group; x and y each represents a number of 0 to 5; z represents a number of 0 to 10; and (b) at least one electrolyte salt. The solid polymer electrolyte has good film strength and processability as well as high ionic conductivity, and is useful for fabricating thin electrodes, batteries and electric double layer capacitors which are free from the leakage of any solution.