Patent ID: 9391326
Filing Date: 2016-07-12
CPC Classification: C01G,C01P,H01G,H01M,Y02E,Y02T

Claim Text:
1. A positive electrode active material comprising: a solid solution lithium-containing transition metal oxide (A) represented by a compositional formula (1) wherein in the compositional formula (1), Li is lithium, Ni is nickel, Co is cobalt, Mn is manganese and O is oxygen, and 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) wherein in the compositional formula (2), Li is lithium, Ni is nickel, Co is cobalt, Mn is manganese and O is oxygen, and 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.