| 摘要 |
PROBLEM TO BE SOLVED: To provide a battery pack having stable characteristics which is less susceptible to vibration, impact, and the like.SOLUTION: Battery holders 200, each mounting a film-covered battery having a positive electrode lead-out tab and a negative electrode lead-out tab taken out from the same side, are stacked while aligning the sides from which the positive electrode lead-out tab and the negative electrode lead-out tab are led out, thus obtaining a battery module 300. A battery pack includes the battery module in which an extension tab connected with each tab is led out from the battery holder in the direction at right angle to the direction of the lead-out tab while extending in the reverse direction of the other lead-out tab, and respective extension tabs are bent along the side face in a direction at right angle to the battery lamination plane, and overlapped before being connected electrically. |
