COMPOSITE CATHODE ACTIVE MATERIAL, CATHODE AND LITHIUM BATTERY CONTAINING COMPOSITE CATHODE ACTIVE MATERIAL AND PREPARATION METHOD THEREOF

A composite cathode active material, a cathode including the same, a lithium battery, and a method of preparing a composite cathode active material are provided. The composite cathode active material includes: a core including a lithium transition metal oxide; and a shell disposed on and conforming to a surface of the core The shell includes: at least one first metal oxide represented by formula MaOb (0