| 摘要 |
<p>A secondary battery (1) includes a package (2) where an electrolytic solution is stored, an electrode assembly (3) provided inside the package (2) and configured to function as a power generation element, a pressure release valve (2b1) provided in the package (2) and configured to discharge a gas generated inside the package (2), and an insulator (8) provided between the pressure release valve (2b1) and the electrode assembly (3) and covering the pressure release valve (2b1) at a position away from the pressure release valve (2b1). The insulator (8) includes multiple opening portions (8c) serving as flow paths of the gas.</p> |
