摘要 |
<p>PROBLEM TO BE SOLVED: To provide a power storage device for making it possible to provide a gas generating member in a case while suppressing occurrence of electrode displacement caused by a gap between a case wall and electrode assembly.SOLUTION: A secondary battery 10 includes a case 11 for accommodating an electrode assembly 14 having a layered structure interposing a separator 27 between a positive electrode 21 and negative electrode 24. The case 11 includes a pressure release valve 15 which operates by pressure inside the case. Inside the case 11, foam members 35 including a foaming agent are arranged between third side faces 14c of the electrode assembly 14 and side walls 12b, 12d of a case main body 12 which are opposite to the third side faces 14c. The foam members 35 are arranged so as to be in contact with the third side faces 14c.</p> |