| 摘要 |
PROBLEM TO BE SOLVED: To provide a structure and a manufacturing method of a power storage device with high energy density.SOLUTION: A structure of an air electrode is configured to include: a first current collector; a second current collector having a projecting structure disposed in contact with the first current collector; and a catalyst layer having one or more and 100 or less graphene films. Accordingly, surface area of the air electrode can be significantly increased because of effect of the second current collector. Further, the graphene film can exhibit catalytic reaction without using a catalyst such as noble metal. Therefore, by employing a structure in which the catalyst layer is provided on the second current collector, energy density of a power storage device can be increased. |
