FLUORINE-BASED POLYMER ELECTROLYTE FILM

摘要

PROBLEM TO BE SOLVED: To provide a fluorine-based polymer electrolyte film having excellent mechanical strength and proton conductivity.SOLUTION: The fluorine-based polymer electrolyte film is formed by impregnating a fluorine-based polymer electrolyte into a polyolefin microporous film having voids of 0.05 to 0.5 μm in pore size, wherein conductivity is 0.1 S/cm or more.