| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a high power storage element with a high production yield. <P>SOLUTION: A manufacturing method of the storage element comprises the following steps of: inserting an electrode group, which is formed by winding a strip-like positive and negative electrode sheets, and a separator, into a bottom-closed can; sealing the opening of the bottom-closed can with a sealing plate; forming a collector exposure portion continuously in a longitudinal direction on an electrode sheet of at least either one of a positive or negative electrode on which an electrode sheet is not stuck; welding together the collector exposure portion and a collecting terminal plate; disposing the collecting terminal plate onto the bottom inside of the bottom-closed can; and electrically connecting the collecting terminal plate and the sealing plate having a terminal with a collecting lead wire. As a result, respective terminals and collecting lead wire are welded before the electrode group is inserted into the bottom-closed can, thereby enabling the maintenance appropriately by checking with eyes. <P>COPYRIGHT: (C)2006,JPO&NCIPI |
