| 摘要 |
PROBLEM TO BE SOLVED: To provide a battery pack having excellent crush resistance.SOLUTION: A battery pack 1 is constituted by arranging a plurality of electric cells 2 in a predetermined direction. The plurality of electric cells 2 include an outer container 10 including a stress concentration part 12, respectively. With regard to the plurality of electric cells 2, arranged from at least any one outermost electric cell 2A in the arrangement direction toward at least the center thereof, the size of the stress concentration part 12 of each electric cell 2 increases, in order, from the stress concentration part 12 of the outermost electric cell 2A in the arrangement direction.SELECTED DRAWING: Figure 1 |
