NEGATIVE ACTIVE MATERIAL FOR RECHARGEABLE LITHIUM BATTERY AND RECHARGEABLE LITHIUM BATTERY

摘要

Negative active materials and rechargeable lithium batteries including the negative active materials are provided. The negative active material includes an intermetallic compound of Si and a metal, and a metal matrix including Cu and Al. The negative active material may provide a rechargeable lithium battery having high capacity and excellent cycle-life and cell efficiency.