Patent ID: 7629082

Claim:
An anode active material, which comprises: (a) a carbonaceous material; and (b) a carbide coating layer partially or totally formed on a surface of the carbonaceous material, the carbide coating layer comprising at least one element selected from the group consisting of metals and metalloids wherein the carbide coating layer is represented by the following formula 1: {—C—C—C} n {C a M b}m {M x X y} 1 [Formula 1] wherein M is at least one metal or metalloid element selected from the group consisting of alkali metals, alkaline earth metals, transition metals and elements of Group 13 and Group 14; X is an oxygen atom or nitrogen atom; each of n, m, x, a and b independently represents a natural number of 1 or more; and each of 1 and y independently represents an integer of 0 or more.