| 摘要 |
PROBLEM TO BE SOLVED: To provide a power storage device that can suppress occurrence of a break in an electrode sheet.SOLUTION: A secondary battery includes a positive electrode terminal 30 and a negative electrode terminal 40 which are respectively inserted into a pair of insertion holes formed in a peripheral wall of a case and have lamination surfaces 301, 401, and an electrode laminate 50 which has a plurality of positive electrode sheets 60 stacked on a stacking face 301 of the positive electrode terminal 30, a plurality of negative electrode sheets 70 stacked on a stacking face 401 of the negative electrode terminal 40, and a separator which is located between the positive electrode sheet 60 and the negative electrode sheet 70 in the lamination direction of the electrode sheets 60, 70 and insulates the positive electrode sheet 60 and the negative electrode sheet 70. A suppressing portion 29 is provided in juxtaposition with the electrode terminals 30, 40 in the case so as to suppress the electrode sheets 60, 70 from being bent and deformed because of pressing of the electrode sheets 60, 70 laminated on the stacking surfaces 301, 401 against the stack surfaces 301, 401 of the electrode terminals 30, 40.SELECTED DRAWING: Figure 12 |
