| 摘要 |
PROBLEM TO BE SOLVED: To provide a power storage device in which damage on a joint can be suppressed, even if vibration is given.SOLUTION: A secondary battery 10 includes an electrode assembly 14 configured by laminating a positive electrode 21 and a negative electrode 22 with a separator 23 interposed therebetween, and a case 11 for housing the electrode assembly 14. The electrode assembly 14 includes a pair of lamination outermost parts 14a, 14b on both sides in the lamination direction, and a pair of side parts 14c, 14d facing each other on both sides in a direction orthogonal to both the lamination direction and the projection direction of positive electrode tab. A swelling tape 16 is provided at least between the pair of side parts 14c, 14d and the inner surface 11a of the case 11. |
