| abstract |
(57) Abstract: Provided are a positive electrode active material for a lithium secondary battery having excellent structural stability, and a method for producing the positive electrode active material for a lithium secondary battery. SOLUTION: The positive electrode active material for a lithium secondary battery is Li CoO 2 core, Al, Mg, Sn, Ca, Ti and M n, wherein the metal is distributed at different concentration gradients from the surface layer to the center of the core. In addition, in the method of manufacturing a positive electrode active material for a lithium secondary battery according to the present invention, the LiCoO 2 is coated with a metal compound solution of the metal, It is characterized by firing at ℃. |