| abstract |
The lithium metal composite oxide powder of the present invention is a lithium metal composite oxide powder composed of secondary particles that are aggregates of primary particles and single particles existing independently from the secondary particles, wherein the lithium metal composite oxide is composed of The following compositional formula (I) is represented, and when the number of independently existing single particles is a and the number of secondary particles is b, [a/(a+b)] satisfies 0.5<[a/(a+b) ] < 1.0. (in the formula, M is one or more metal elements selected from Fe, Cu, Ti, Mg, Al, W, B, Mo, Nb, Zn, Sn, Zr, Ga, La and V, satisfying -0.1≤ x≤0.2, 0≤y≤0.4, 0≤z≤0.4, and 0≤w≤0.1.) Li[Li x (Ni (1‑y‑z‑w) Co y Mn z M w ) 1‑x ]O 2 (I). |