| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a power storage device capable of preventing a deterioration of a function of a short-circuit unit while being provided with a spacer between the short-circuit unit and a wall part.SOLUTION: In a secondary battery 10, a short-circuit unit 30 is arranged in a clearance S between both flat surfaces 14a of an electrode assembly 14 and a long side wall 12c in such a manner that one surface thereof faces the flat surface 14a. Additionally, a spacer 50 is arranged between the long side wall 12c and the other surface of the short-circuit unit 30, in the clearance S. In the spacer 50, a layer facing the other surface (first metal member 31) of the short-circuit unit 30 is configured as a first metal sheet 51a.</p> |
