abstract |
A lithium battery electrode in which an active material thin film that occludes / discharges lithium such as a microcrystalline silicon thin film or amorphous silicon is formed on a current collector, and the thin film is separated into a columnar shape by a gap formed in the thickness direction thereof, and the columnar portion thereof. A bottom portion of a lithium battery electrode is provided, which is in close contact with a current collector. |