NEGATIVE ACTIVE MATERIAL FOR RECHARGEABLE LITHIUM BATTERY AND RECHARGEABLE LITHIUM BATTERY INCLUDING SAME

Disclosed are a negative active material for a rechargeable lithium battery and a rechargeable lithium battery including the same. The negative active material includes: a silicon particle core comprising a silicon particle having a particle size in a micrometer range; an oxide layer having a thickness in a range of about 65 nm to about 450 nm, on the silicon particle core; and a conductive layer on the oxide layer.