| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a power storage device including a gas vent valve, the gas transmission amount of which can be enhanced, and long life of the power storage device can be ensured by stabilizing the operation of the gas vent valve.SOLUTION: A capacitor including a sealing plate for sealing an outer case housing a power storage element further includes a through hole penetrating the sealing plate, and a gas vent valve arranged in the through hole. The gas vent valve includes a cylinder part, and closing part for closing the cylinder part. Outer peripheral surface of the cylinder part and the closing part are arranged to be exposed to a space formed by the outer case and the sealing body, and gas is discharged to the outside by the cylinder part and closing part.</p> |
