POROUS POLYMER ELECTROLYTE COMPOSITION BLENDED WITH POLYMER/ACRYLATE-BASED IONOMER OF POLYVINYL CHLORIDE/ACRYLATE AND PROCESS FOR PREPARATION THEREOF

摘要

PURPOSE: A process for preparing a polymer electrolyte composition capable of obtaining high ion conductivity and having excellent mechanical physical properties by blending an acrylate-based polymer and an acrylate-based ionomer with polyvinyl chloride and impregnating a polymer matrix having a porous structure with a liquid electrolyte is provided. Thereby, the composition can be effectively used as material of polymer electrolyte for lithium secondary battery. CONSTITUTION: The composition blended with polyvinyl chloride/acrylate-based polymer/acrylate-based ionomer is obtained by impregnating polyvinyl chloride, an acrylate-based polymer and an acrylate-based ionomer with a liquid electrolyte comprising a cosolvent and lithium salts in a ratio of 8 : 1 : 1 to 5 : 2 : 3. The polyvinyl chloride has an average molecular weight of 70,000 to 300,000.