| abstract |
The present disclosure relates to a cathode active material for a lithium secondary battery, and a lithium secondary battery comprising same, the cathode active material comprising a lithium metal oxide represented by the following chemical formula 1: [chemical formula 1] Li p (Ni x Co y Me z )O 2 , wherein 0.9 ≤ p ≤ 1.1, 0.81 ≤ x ≤ 0.87, 0 < y ≤ 0.3, 0 < z ≤ 0.3, x + y + z =1, and Me is at least one of Al, Mn, Mg, Ti and Zr. |