| 摘要 |
<p>[Object] The object is to provide a bipolar secondary battery current collector that can suppress an increase of a battery temperature. [Solution Means] A bipolar secondary battery current collector according to the present invention is a bipolar secondary battery current collector having electrical conductivity The current collector is characterized in that it has an expansion section that expands in a thickness direction of the current collector at a temperature equal to or higher than a prescribed temperature.</p> |
