Cathode active material for lithium secondary battery and method of manufacturing the same

A cathode active material for a lithium secondary battery, comprising:

• a lithium metal oxide particle;
• and
• a thio-based compound formed on at least portion of a surface of the lithium metal oxide particle, the thio-based compound including a thioamide compound represented by Structural Formula 1,
• wherein the thio-based compound forms a coating layer, a ligand bond or a complex bond on the surface of the lithium metal oxide particle:
• wherein, in the Structural Formula 1 above, R1 represents hydrogen, halogen, a salt containing O−or S−, a C1-C10 hydrocarbon group capable of substituted with a substituent group, a C1-C10 alkoxy group, an amine group, an amine group substituted with a C1-C10 alkyl group, a C1-C10 thioalkyl group or a thioamide group,
• wherein R2 and R3 are each independently hydrogen or a C1-C10 hydrocarbon group capable of substituted with a substituent group, R2 and R3 are capable of being fused together to form a ring, and
• wherein the substituent group capable of being combined with R1, R2 and R3 includes halogen, a cyano group, a hydroxyl group or a carboxyl group.