HYBRID POLYMER ELECTROLYTE, ITS PRODUCTION AND LITHIUM BATTERY MANUFACTURED BY USE OF THIS

摘要

PROBLEM TO BE SOLVED: To enhance the ion conductivity and to improve the stability by including a copolymer matrix of porous polyvinyl chloride and polyvinylidene chloride and an organic solvent to which an alkali metal salt impregnated in the pores is dissolved. SOLUTION: In this electronyte, the copolymer matrix preferably has 10-50 vol.% of pores to the total electrolyte. An alkali metal, salt consists a lithium salt and, particularly preferably, LiN(CF3 SO2 )2 . The organic solvent preferably consists of a mixture of ethylene carbonate and propylene carbonate. The weight ratio of polyvinyl chloride to polyvinylidene chloride in the copolymer matrix is particularly preferably 3:1. The weight ratio of copolymer matrix:alkali metal: organic solvent is preferably set to 0.2:0.2:0.6-0.35:0.35:0.3.