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

摘要

Disclosed are: a negative electrode active material including a nanostructure having a hollow core portion-shell portion structure; a lithium battery comprising the same; and a producing method of the negative electrode active material. The nanostructure comprises: a hollow core unit; and a cross section of an shell unit including a semiconductive element of a ring form surrounding the core unit and an oxide of the semiconductive element.