abstract |
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a separator for a wound lithium secondary battery comprising a gel polymer electrolyte, and a method for manufacturing the same, comprising polyvinyl chloride or polyvinyl chloride, polyvinylidene fluoride, vinylidene fluoride / hexafluoropropylene copolymer It provides a separator comprising a matrix formed of a mixture with at least one selected from the group consisting of polymethacrylate, polyacrylonitrile and polyethylene oxide. |