ROLLING MEMBER, ROLLING DEVICE FOR LITHIUM ION SECONDARY BATTERY OF USING THE SAME, ROLLING METHOD OF USING THE SAME

摘要

The present invention relates to a rolling structure for preventing cracks on an electrode for a cylindrical secondary battery. According to the present invention, the electrode stress at the end of the electrode is reduced by locating an electrode tab on a modified curvature area which modifies the curvature of a rolling member for rolling the cylindrical secondary battery, and the generation of cracks on the electrode can be reduced.