| 摘要 |
PROBLEM TO BE SOLVED: To prevent reduction in a manufacturing speed of an electrode winding body while preventing a foreign substance derived from a negative electrode sheet from being deposited on a positive electrode sheet when manufacturing the electrode winding body.SOLUTION: An electrode winding device includes: a first roller for forming a sheet laminate by holding the positive electrode sheet between two separator sheets; a second roller for winding up the negative electrode sheet and the sheet laminate while overlapping them with each other so as to position the sheet laminate outside and the negative electrode sheet inside; and a partition part disposed between the negative electrode sheet in a state before wound up by the second roller and the positive electrode sheet and the two separator sheets in a state before formed into the sheet laminate. |
