| 摘要 |
PROBLEM TO BE SOLVED: To provide a power storage device in which movement of an electrode body can be minimized in a case.SOLUTION: A secondary battery 10 comprises: an electrode body 18 having a laminar structure of a positive electrode sheet 21 and a negative electrode sheet 31 with a sheet-like separator 19 interposed therebetween; and a case 11 for housing the electrode body 18, in which a positive electrode uncoated part 24a and a positive electrode terminal 15 are connected electrically by a positive electrode collector terminal 41, and a negative electrode uncoated part and a negative electrode terminal are connected electrically by a negative electrode collector terminal. The secondary battery 10 further includes an insulation bag 40 formed of an insulating resin material, in bag-shape, so as to house the electrode body 18. The insulation bag 40 and the inner wall face 12b of the case (body member 12) are heat-welded. |
