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

摘要

The present invention relates to a negative electrode active material for a lithium secondary battery, comprising: a core including a material that allows for lithium doping and undoping; and a titanium silicide layer formed along the outer periphery of the core including the material that allows for lithium doping and undoping. Furthermore, the present invention relates to a method for preparing the negative electrode active material for the lithium secondary battery and to the lithium secondary battery comprising the negative electrode active material for the lithium secondary battery.