CPC H01M 4/134 (2013.01) [C01G 53/50 (2013.01); H01M 4/131 (2013.01); H01M 4/366 (2013.01); H01M 4/505 (2013.01); H01M 4/525 (2013.01); C01P 2002/74 (2013.01); H01M 2004/028 (2013.01)] | 4 Claims |
1. A positive electrode active material for a non-aqueous electrolyte secondary battery comprising:
a lithium metal composite oxide powder represented by a general formula:
LizNi1−x−yCoxMyO2−α,
wherein 0<x≤0.35, 0≤y≤0.35, 0.95≤z≤1.30, −0.15≤α≤0.15, and M is at least one element selected from Mn, V, Mg, Mo, Nb, Ti and Al; and
a coating layer placed on particle surfaces of the lithium metal composite oxide powder;
wherein the coating layer is a mixed-phase of a crystalline phase and an amorphous phase.
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