| abstract |
An embodiment of the present invention is a layered structure of lithium-based oxide particles represented by the following formula (1); It provides a positive electrode active material for a lithium secondary battery comprising; and metal oxide particles coated on at least a portion of the surface of the lithium-based oxide particles. [Formula 1] Li x Ni a Co b M c O 2 In Formula 1, M is Al, Ni, Co, Mn, Cr, Fe, Mg, Sr, V, or a combination thereof, and x, a, b and c are 0.8<x<1.5, 0<a< It is a real number that satisfies 1, 0<b<1, 0<c<1, and a+b+c=1. |