CATHODE ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERY, PREPARATION METHOD THEREFOR, AND LITHIUM SECONDARY BATTERY COMPRISING SAME

The present invention relates to a positive electrode active material for a lithium secondary battery, comprising a lithium transition metal oxide containing nickel (Ni), wherein the lithium transition metal oxide is in form of a single particle, has an average particle diameter (D50) ranging from 2 μm to 4 μm, and exhibits a maximum pole density value of 20 or less at the (001) plane as determined by Electron Back Scatter Diffraction (EBSD) analysis of a pole figure diagram.