| 摘要 |
PROBLEM TO BE SOLVED: To provide a negative electrode active material that has excellent dope/dedope capability of lithium. SOLUTION: The negative electrode active material uses a compound A-B-C, which consists of a first element A, a second element B, and a third element C. The first element A is at least one kind of elements chosen from Cu and Fe, the second element B is at least one kind of elements chosen from Si and Sn, and the third element C is at least one kind of elements chosen from In, Sb, Bi, and Pb. |
