MANUFACTURING METHOD OF SWIRL-SHAPED ELECTRODE GROUP

摘要

PROBLEM TO BE SOLVED: To provide a manufacturing method of an electrode group capable of securing reliability without stress due to bending of an electrode plate generated as a group diameter gets large by winding. SOLUTION: In a process of manufacturing a swirl-shaped electrode group by winding a positive electrode plate and a negative electrode plate through a separator, an electrode plate is supplied from a tangential direction toward the electrode group at a contact point between the electrode group in the process of winding, and the bending at exit of an electrode supply table is eliminated. COPYRIGHT: (C)2005,JPO&NCIPI