| abstract |
Doped titanium niobate is provided, which has a chemical structure of Ti(1-x)M1xNb(2-y)M2yO(7-z)Qz or Ti(2-x')M1x'Nb(10-y')M2y'O(29-z')Qz', wherein M1 is Li, Mg, or a combination thereof; M2 is Fe, Mn, V, Ni, Cr, or a combination thereof; Q is F, Cl, Br, I, S, or a combination thereof; 0 ≤ x ≤ 0.15; 0 ≤ y ≤ 0.15; 0.01 ≤ z ≤ 2; 0 ≤ x' ≤ 0.3; 0 ≤ y' ≤ 0.9; and 0.01 ≤ z' ≤ 8. |