Separators for winding-type lithium secondary batteries having gel-type polymer electrolytes and manufacturing method for the same

摘要

A porous separator for a winding-type lithium secondary battery having a gel-type polymer electrolyte includes a matrix made of polyvinyl chloride, or a matrix made of mixtures of polyvinylchloride and at least one polymer selected from the group consisting of polyvinylidenefluoride, a vinylidenefluoride/hexafluoropropylene copolymer, polymethacrylate, polyacrylonitrile and polyethyleneoxide.