| 摘要 |
[Summary] A positive electrode active material is provided to contain: a solid solution lithium-containing transition metal oxide (A) represented by Li1.5[NiaCobMnc[Li]d]O3 (where a, b, c and d satisfy the relations of 0.1≦d≦0.4, a+b+c+d=1.5, and 1.1≦a+b+c≦1.4.); and a lithium-containing transition metal oxide (B) represented by Li1.0Nia′Cob′Mnc′O2 (where a′, b′ and c′ satisfy the relation of a′+b′+c′=1.0.). |
| 主权项 |
1. A positive electrode active material comprising:
a solid solution lithium-containing transition metal oxide (A) represented by a compositional formula (1)
Li1.5[NiaCobMnc[Li]d]O3 (1) (In the formula (1), Li is lithium, Ni is nickel, Co is cobalt, Mn is manganese and O represents oxygen while a, b, c and d satisfy the relations of 0<a<1.4, 0≦b<1.4, 0<c<1.4, 0.1≦d≦0.4, a+b+c+d=1.5, and 1.1≦a+b+c≦1.4.); and a lithium-containing transition metal oxide (B) represented by a compositional formula (2)
Li1.0Nia′Cob′Mnc′O2 (2) (In the formula (2), Li is lithium, Ni is nickel, Co is cobalt, Mn is manganese and O represents oxygen while a′, b′ and c′ satisfy the relations of 0<a′<1.0, 0<b′<1.0, 0<c′<1.0, and a′+b′+c′=1.0.). |
