| 摘要 |
An alloy material containing an intermetallic compound of metal that is alloyed with Li and metal that is not alloyed with Li, capable of repeatedly absorbing and desorbing Li, is formed on a collector made of a material that is not alloyed with Li, as a plurality of convex portions partitioned with gaps disposed thereamong, and an area the convex portions occupy on the collector is assumed to be 60 to 95% of the area of the collector. Because of this, an electrode containing an intermetallic compound capable of repeatedly absorbing and desorbing Li can be provided, which can configure a non-aqueous secondary battery having a higher charging/discharging efficiency, a larger discharging capacity, and more excellent high rate characteristics and cycle characteristics.
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