Patent ID: 8728344
Filing Date: 2014-05-20
Classification: C01G,C01P,H01M,Y02E

Abstract:
1. An electrode active material comprising: a lithium-nickel-manganese-cobalt composite oxide having a hexagonal, layered rock-salt type crystal structure that belongs to the space group R3m, the lithium-nickel-manganese-cobalt composite oxide being represented by Li wherein, in a powder X-ray diffraction analysis of a powder of the lithium-nickel-manganese-cobalt composite oxide using a CuKα ray, a peak intensity ratio (A/B) of a diffraction peak intensity (A) observed near 2θ=18.6±0.2° to a diffraction peak intensity (B) observed near 2θ=44.3±1.0° is more than 0 and less than 1.0.