02-03-2022 дата публикации
Номер: GB0002598432A
Принадлежит:
An active electrode material comprises a mixture of (a) at least one lithium titanium oxide and (b) at least one mixed niobium oxide, wherein the mixed niobium oxide is expressed by the general formula [M1]x[M2](1-x)[Nb]y[O]z, wherein 0 ≤ x < 0.5, 0.5 ≤ y ≤ 49 and 4 ≤ z ≤ 124. M1 and M2 are different, where M1 is selected from one or more of P, B, Ti, Mg, V, Cr, W, Zr, Mo, Cu, Fe, Ga, Ge, Ca, K, Ni, Co, Al, Sn, Mn, Ce, Se, Si, Sb, Y, La, Hf, Ta, Zn, In and Cd, and M2 is selected from one or more of P, Mg, V, Cr, W, Zr, Mo, Cu, Fe, Ga, Ge, Ca, K, Ni, Co, Al, Sn, Mn, Ce, Sb, Bi, Sr, Y, La, Hf, Ta, Zn, In and Cd. If x = zero and M2 consists of a single element, then the mixed niobium oxide must be oxygen deficient. In other words, the mixed niobium oxide is adapted, either by cationic substitution due to the presence of both M1 and M2, or by providing a mixed niobium oxide with oxygen depletion. Such materials are of interest as active electrode materials in lithium-ion or sodium-ion batteries ...
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