| 摘要 |
<p>A battery assembly has circular cylindrical rechargeable/dischargeable battery cells (10) and a holding member for holding the battery cells. On the outer peripheral surface (32) of each battery cell are formed wavy irregularities (34) arranged in the circumferential direction of the battery cell and extending longitudinally. The holding member has battery cell installation holes each having grooves (28) formed in an inner peripheral surface (29) of the installation hole and engaging with the irregularities (34). The battery cells (10) are held inserted in the battery cell installation holes in the holding member, and in this state, the irregularities (34) on the outer peripheral surfaces (32) of the battery cells and the grooves (28) are fitted to each other.</p> |
