| 摘要 |
<p>A gas generated in a battery case (5) increases battery inner pressure. Therefore, the gas may be the cause of deformation and breakage of the battery case (5). Furthermore, since the gas may accelerate deterioration of battery characteristics, a technology of suppressing the gas and improving the battery characteristics is provided. According to one embodiment of the present invention, a gasket (17) is provided between the battery case (5) and a sealing body (10) that seals an opening of the battery case (5), and the gasket contains an adsorbent (30) that adsorbs water and/or the gas generated in the battery case (5).</p> |
