abstract |
The present invention also relates to a method for producing a cathode active material, a cathode active material, and a lithium secondary battery comprising the cathode active material. [Chemical Formula 1] Li a Ni x Co y Mn z O 2 In the above formula (1), 0.90? A? 1.11, 0.5? X <1.0, 0 <y? 0.5, and 0 <z? 0.5, and x + y + z = |