| 摘要 |
In order to provide a battery pack having stable characteristics that are not easily affected by vibrations, shocks, and the like, a battery module (300) is formed by laminating battery holders, whereon film-covered batteries having positive electrode lead-out tabs and negative lead-out tabs that are taken out from the same side are mounted, by aligning the orientation of the side on which the positive lead-out tabs and the negative lead-out tabs are led out. Extension tabs that are connected to each tab are oriented at right angles to the direction of the lead-out tabs, extend in the opposite direction to the other lead-out tabs, and are lead out from the battery holders. The extension tabs are bent so as to overlap along a side surface at right angles to the battery lamination surface, and are thereby electrically connected. |
