WINDER USING FOR SECONDARY BATTERY OF NOVEL STRUCTURE

摘要

The present invention provides a winder winding laminated sheets in a membrane structure interposed between an anode and a cathode. The winder comprises: a main body unit formed in a cylindrical hollow shape and including an insertion slit at the center; and two or more tension permission units formed to the outer surface of the main body unit to induce stress to be uniformly dispersed. When the stress is generated at one side of the main body unit, the tension is applied to the laminated sheets by the tension permission units of the other side so that the laminated sheets are uniformly wound.