| 摘要 |
PROBLEM TO BE SOLVED: To prevent the coming out of an adhesive for fixing a cover to the lower surface of a unit cell to the outside of a battery pack, without having to accurately control the coating position or coating amount of the adhesive. SOLUTION: In the battery pack, a lower side cover 6 made of hard plastic is fixed with the adhesive 49 to the lower surface of the flat square box-shaped unit cell 2, in which the front and rear thickness dimension is smaller than the upper and lower height dimensions and the right and left width dimensions. Circular adhesion parts 43, 43 for coating the adhesive 49 and ring-shaped grooves 42, 42 surrounding the adhesion parts 43, 43 are formed at the right and left both ends on the upper surface of the lower side cover 6. COPYRIGHT: (C)2007,JPO&INPIT
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