| 摘要 |
An active material for batteries according to one embodiment comprises a composite oxide represented by the general formula: Lix(Nb1-yTay)2+0.5zTi1-zM0.5zO7 (wherein 0 ≤ x ≤ 5, 0 ≤ y ≤ 1, 0 < z ≤ 1). In the formula, M represents at least one metal element selected from the group consisting of Sc, Y, V, Cr, Fe, Co, Mn, Al and Ga. |
