PRECURSOR FOR CATHOD ACTIVE MATERIAL OF LITHIUM SECONDARY BATTERY, CATHODE ACTIVE MATERIALS MADE BY THE SAME, AND LITHIUM SECONDARY BATTERY CONTAINING THE SAME

摘要

The present invention relates to an anode active material precursor for lithium secondary battery, an anode active material manufactured using the same, and a lithium secondary battery comprising the same and, more specifically, to an anode active material precursor for lithium secondary battery, an anode active material manufactured using the same, and a lithium secondary battery comprising the same, the anode active material precursor for lithium secondary battery characterized in that a complex oxide of an anode active material precursor and lithium as a secondary particle contains a transition metal, has an average particle size within a range of 4-20 μm, and is formed by congregating a plurality of primary particles in which a length in the a-axis direction is different from a length in the c-axis direction, wherein the ratio of the length in the a-axis direction to the length in the c-axis direction in the primary particles increases from the center of the secondary particle to the surface thereof.