Method For Manufacturing Cathode Active Material For Lithium Secondary Battery, And Cathode Active Material Manufactured Thereby

Abstract: The present invention relates to a method for manufacturing a cathode active material for a lithium secondary battery and a cathode active material for a lithium secondary battery manufactured thereby, the method comprising the steps of: (1) mixing a single-particle or quasi-single-particle lithium composite transition metal oxide with a cobalt-containing raw material and heat-treating the mixture to form a cobalt coating layer on the surface of the lithium composite transition metal oxide; and (2) mixing the lithium composite transition metal oxide having the cobalt coating layer formed thereon with a boron-containing raw material and heat-treating the mixture to form a boron coating layer on the cobalt coating layer.

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