NEGATIVE ACTIVE MATERIAL FOR RECHARGEABLE LITHIUM BATTERY, METHOD OF PREPARING SAME, AND RECHARGEABLE LITHIUM BATTERY INCLUDING SAME

摘要

PURPOSE: A negative active material for a rechargeable lithium battery is provided to ensure excellent conductivity, output characteristics and energy density. CONSTITUTION: A negative active material for a rechargeable lithium battery comprises an active material(5) and a composite of crystalline carbons(7). The active material comprises a core(1) including a compound represented by chemical formula 1: Li_xTi_yO_Z, and a carbon coating layer(3) which is formed on the core and includes amorphous carbons. In chemical formula 1, 0.6 <= x <= 2.5 and 1.2 <= y <= 2.3. The content of the amorphous carbon is 0.1-2 weight% based on the total weight of the negative active material.