Patent ID: 9728783
Date: 2017-08-08
CPC Classifications: H01M,Y02E

Claim:
1. A cathode active material for a lithium secondary battery comprising: a core including a compound represented by the following Chemical Formula 1; and a shell including a compound represented by the following Chemical Formula 2, wherein the material composition of the core and the material composition of the shell are different: wherein M1, M2, and M3 are independently selected from the group consisting of Ni, Co, Mn, Fe, Na, Mg, Ca, Ti, V, Cr, Cu, Zn, Ge, Sr, Ag, Ba, Zr, Nb, Mo, Al, Ga, B and a combination thereof, and M1 and M3 are identical, M1 and M2 are different from each other; E is selected from the group consisting of F, S and a combination thereof;