| abstract |
There is provided a positive electrode active material comprising a lithium composite oxide represented by the following general formula (1), a process for producing the same, and a lithium secondary battery having the positive electrode active material. [Chemical Formula 1] Li a Ni x Co y M 1 -xy- z Al z O 2 In the above formula (1), M is at least one element selected from the group consisting of Mn, Mg, Cr, Fe, Ti, Zr, Mo, ) And zinc (Zn), wherein 1? A? 1.3, x is a number of 0.45 to 0.6, y is a number of 0.15 to 0.3, and z is a number of 0.003 to 0.01. |