| 摘要 |
A battery electrode {1, (12, 15), (32, 33)}, includes: a collector {2; (11, 11a), 14; (31: 31a, 31b)}; and an active material layer {3, (12,15), (32, 33)} formed on a surface (2A) of the collector {2; (11, 11a), 14; (31: 31a, 31b)} and including: an active material, and a conductive additive having a bulk density which is gradually decreased in a direction (D) from a collector side (3B) of the active material layer {3, (12, 15), (32, 33)} to a surface side (3A) of the active material layer {3, (12, 15), (32, 33)}. |
