NEGATIVE ACTIVE MATERIAL FOR RECAHRGEABLE LITHIUM BATTERY AND RECAHRGEABLE LITHIUM BATTERY INCLUDING THE SAME

摘要

A negative electrode active material for a lithium secondary battery and a lithium secondary battery including the same are provided. The negative electrode active material for a lithium secondary battery comprises: crystalline carbon; amorphous carbon; and a silicon-carbon composite including silicon nanoparticles which are acicular, scaly, lamellar, or a combination thereof. The silicon nanoparticles have an average particle diameter of 5 to 150 nm, and an aspect ratio of 4 to 10.