METHOD OF PREPARING NEGATIVE ACTIVE MATERIAL FOR RECHARGEABLE LITHIUM BATTERY AND RECHARGEABLE LITHIUM BATTERY INCLUDING NEGATIVE ACTIVE MATERIAL PREPARED THEREFROM

摘要

A method of manufacturing an anode active material for a lithium secondary battery is provided to ensure excellent capability and lifetime property and high reproducibility. A method of manufacturing an anode active material for a lithium secondary battery comprises (S1) a step for obtaining a mixture by mixing lithium salt, vanadium raw material and optionally progression solvent containing M; (S2) a step for manufacturing an active material precursor by heat-reacting the mixture; and (S3) a step for manufacturing the anode active material of the chemical formula 1: Li1+xV1-x-yMyO2+z by calcining the active material precursor under reduction. In the formula 1, 0.01 <= x <= 0.5, 0 <= y <= 0.3, -0.2 <= z <= 0.2, and M is an element selected from the group consisting of a transition metal except the vanadium, alkali metal, alkaline earth metal, semi-metal and their combination.