Active electrode material
AssigneeEchion Technologies Limited
InventorsAlexander Groombridge, Zhihong Cai, Daniel Martin, Prince Babbar
Life of this patent
Estimating the term…
Abstract
The invention relates to active electrode materials and to methods for the manufacture of active electrode materials. Such materials are of interest as active electrode materials in lithium-ion or sodium-ion batteries. The invention provides an active electrode material expressed by the general formula M1aM22-aM3bNb34-bO87-c-dQd.
Claims28
An active electrode material comprising a mixed niobium oxide, wherein the mixed niobium oxide has the composition M1aM22-aM3bNb34-bO87-c-dQd, wherein:
- M1 and M2 are different;
- M1 is selected from Mg, Ca, Sr, Y, La, Ce, Zr, Hf, V, Nb, Ta, Cr, Mo, W, Mn, Fe, Co, Ni, Cu, Zn, Cd, B, Al, Ga, In, Si, Ge, Sn, Pb, P, Sb, Bi and mixtures thereof;
- M2 is Zn or Cu;
- M3 is selected from Mg, Ca, Sr, Y, La, Ce, Ti, Zr, Hf, V, Ta, Cr, Mo, W, Mn, Fe, Co, Ni, Cu, Zn, Cd, B, Al, Ga, In, Si, Ge, Sn, Pb, P, Sb, Bi, and mixtures thereof;
- Q is selected from F, Cl, Br, I, N, S, Se, and mixtures thereof;
- 0≤a<1.0;
- 0≤b≤3.4;
- −0.5≤c≤4.35;
- 0≤d≤4.35;
- one or more of a, b, c, and d does not equal 0;
- and
- when a, b, and d equal zero, c is greater than zero;
- wherein a crystal structure of the mixed niobium oxide as determined by X-ray diffraction corresponds to the crystal structure of one or more of Zn2Nb44O87 and Cu2Nb34O87.
10-11. (canceled)
(canceled)
The active electrode material according to any preceding claim, wherein the mixed niobium oxide further comprises Li and/or Na intercalated within the crystal structure of the mixed niobium oxide.
(canceled)
The active electrode material according to any preceding claim comprising the mixed niobium oxide and at least one other component;
- wherein the at least one other component is selected from a binder, a solvent, a conductive additive, a different active electrode material, and mixtures thereof.
25-26. (canceled)
30-32. (canceled)
Dependencies are inferred from the claim text.