Precursor for the production of positive electrode active material comprising metal oxides having multilayered structure and positive electrode active material for lithium secondary battery produced using the same

A precursor for the production of a positive electrode active material for a secondary battery comprising:

• a core composed of transition metal hydroxides including nickel(Ni) and manganese(Mn) and further including anions other than hydroxyl groups(OH), or transition metal hydroxides including nickel(Ni), manganese(Mn) and cobalt(Co) and further including anions other than hydroxyl groups(OH);
• and
• a shell composed of transition metal hydroxides including cobalt(Co) and further including anions other than hydroxyl groups(OH),
• wherein the transition metal hydroxide of the core is a compound represented by the following Formula 1, and the transition metal hydroxide of the shell is a compound represented by the following Formula 2
• NiaMNbCO1−(a+b+c)Mc[(OH1−X)2−(z/n)A(z/n)] (1)
• wherein
• 0.55≤a≤0.9, 0.05≤b≤0.5, 0≤c≤0.1, a+b+c≤1, 0<x<0.5, 0.01≤z≤0.5, N is an oxidation number of A;
• M is one or more selected from the group consisting of W, B, Zr, Al, Ti, Mg, Cr, and Si;
• and
• A is one or more selected from the group consisting of PO4, BO2, B4O7, B3O5 and F;
• Co(1−a)Za[(OH1−x)2−(z/n)N(z/n)] (2)
• wherein,
• 0≤a≤0.1, 0<x<0.5, 0.01≤z≤0.5, n is an oxidation number of A′;
• Z is one or more selected from the group consisting of W, B, Zr, Al, Ti, Mg, Cr, and Si;
• and
• A′ is one or more selected from the group consisting of PO4, BO2, B4O7, B3O5 and F.