| 摘要 |
An active material for a secondary battery with improved life characteristics is provided. An active material for a secondary battery according to this exemplary embodiment is an active material for a secondary battery represented by Lia1(Nix1Mn2-x1-y1-x1M1y1 M2z1)O4 wherein 0<x1, 0<y1, 0<z1, x1+y1+z1<2, and 0≦a1≦2; M1 is at least one selected from Si and Ti; and M2 is at least one selected from Li, B, Mg, Na, K, and Ca. In addition, an active material for a secondary battery according to this exemplary embodiment is an active material for a secondary battery represented by Lia2(Nix2Mn2-x2-y2-z2M3y2M4z2)O4 wherein 0<x2, 0<y2, 0<z2<0.03, x2+y2+z2<2, and 0≦a2≦2; M3 is at least one selected from Si and Ti; and M4 is at least one selected from Li, B, Mg, Al, Na, K, and Ca, and includes at least Al. |
| 主权项 |
1. An active material for a secondary battery represented by the following formula (I):
Lia1(Nix1Mn2-x1-y1-z1M1y1M2z1)O4 (I) wherein 0.4≦x1≦0.6, 0<y1, 0<z1, x1+y1+z1<2, and 0≦a1≦1.2; M1 is at least one selected from Si and Ti; and M2 is at least one selected from Li, B, Na, K, and Ca. |
