| 摘要 |
A method of producing a positive electrode active material for a non-aqueous electrolyte secondary battery, comprising the steps of: (a) preparing a raw material mixture, comprising "nx" mol of magnesium, "ny" mol of an element M where the element M is at least one selected from the group consisting of Al, Ti, Sr, Mn, Ni and Ca, "n(1-x-y)" mol of cobalt and "nz" mol of lithium, such that the values n, x, y and z satisfy 0<n, 0.97<=(1/z)<=1, 0.005<=x<=0.1, and 0.001<=y<=0.03; and (b) baking the raw material mixture in an oxidization atmosphere at 1000 to 1100° C.
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