| 摘要 |
Adequacy of a charge/discharge cycle of a secondary battery as an electromotive apparatus is realized. A phosphate mineral powder containing at least one, two, or more elements selected from cerium, lanthanum, praseodymium, neodymium, and thorium is carried in at least one of a positive electrode active material, a negative electrode active material, and a separator, or contained in an active material layer formed on one electrode so as to face the other electrode. With such a structure, discharge duration characteristics for a long time in the electromotive apparatus can be obtained. |
