| abstract |
The present invention provides a positive electrode active material precursor for a non-aqueous electrolyte secondary battery, which comprises a general formula Ni x Co y Mn z M t CO 3 (wherein the formula satisfies x+y+z+t=1, 0.05≤x≤0.3, 0.1≤y≤0.4, 0.55≤z≤0.8, and 0≤t≤0.1, M is selected from Mg, Ca, Al, Ti, V, Cr, Zr, Nb, Mo, and W The nickel-cobalt-manganese carbonate complex and the hydrogen-containing functional group represented by one or more additional elements), wherein the mass ratio H/Me of the hydrogen contained therein and the contained metal component Me is 1.60 or more. |