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

摘要

A method for preparing an anode active material for a lithium secondary battery is provided to obtain a lithium secondary battery having excellent lifespan characteristics and quality reproducibility. A method for preparing an anode active material for a lithium secondary battery comprises the steps of: (S1) mixing a lithium vanadium oxide, a carbonaceous material and a binder in a solvent to provided a mixed solution; and (S2) spraying and heat treating the mixed solution to provide an anode active material comprising a metal oxide represented by the formula of Li1+xV1-X-yMyO2+z and carbonaceous material. In the formula, x ranges from 0.01 to 0.5; y ranges from 0 to 0.3; z ranges from -0.2 to 0.2; M is an element selected from transition metals other than vanadium, alkali metals, alkaline earth metals, metalloids, and combinations thereof.