Negative active material for non-aqueous electrolyte battery, method of preparing same, and non-aqueous electrolyte battery comprising same

A negative active material of a non-aqueous electrolyte battery includes a compound represented by the following formula: LiMVOwhere 0.1 ≤ x ≤ 2.5, 0 < y ≤ 0.5, 0.5 ≤ z ≤ 1.5, 0 ≤ d ≤ 0.5, and M is at least one element selected from the group consisting of Al, Cr, Mo, Ti, W, and Zr.