| 摘要 |
PROBLEM TO BE SOLVED: To increase impact strength of a cover fit to the opening of a covering material in a battery pack in which a battery element is housed in the covering material. SOLUTION: The battery element is housed in the hard covering material 1 having a first opening and a second opening at both ends, and a first cover and a second cover manufactured by resin molding are fitted to the first opening and the second opening. The second cover 3 has one or two or more through holes 32 filling resin between the second cover 3 and the battery element, and a groove 33 installed on the surface facing the battery element. When resin is filled between the second cover 3 and the battery element through the through hole, resin is filled in the groove installed on the surface facing the battery element and cured. It is therefore possible to ensure anchor effect. COPYRIGHT: (C)2006,JPO&NCIPI
|
