Effects of gamma-radiation on the polymer electrolyte P(EO)8·LiClO4

Abstract

The polymer electrolyte formed with poly(ethylene oxide), P(EO) and LiClO₄ in the n = 8:1 ratio (n = [EO units]/[Li]) was exposed to γ-radiation at room temperature in aqueous solution, then dried and characterized using thermal and conductivity measurements. Its improved electrical and mechanical properties, in comparison with those of the non-irradiated material, suggest that cross-linked P(EO)₈·LiClO₄ can advantageously replace the usual polymer electrolyte of the same composition in electrochemical devices in the solid state.