1. 1) Battery Association of Japan, Denti, p. 7, March 1 (2005) [in Japanese].
2. 2) Battery Association of Japan, Denti, p. 4, April 1 (2005),
3. p. 3, May 1 (2005),
4. p. 6, June 1 (2005) [in Japanese].
5. 3) A. Kozawa, K. Fujita, A. Sato, and D. Brodd, Proc. 12th Annual Battery Conf. on Applicatins and Advances, p. 277 (Long Beach, USA, Jan. 14–17) (1997).