Patent ID: 7099062

Claim:
Electrochromic film with the general formula: ApBqOxDyEz, wherein A is an element selected from: Ni optionally in combination with one or more elements from the group consisting of Ir, Cr, V, Mn, Fe, W, Mo, Ti, Pr and Hf, Ir optionally in combination with one or more elements from the group consisting of Cr, V, Mn, Fe, W, Mo, Ti, Pr and Hf, and W optionally in combination with one or more elements from the group consisting of Cr, V, Mn, Fe, Mo, Ti, Pr and Hf, the total amount being set to p; B is an element selected from: if A is Ni: the group consisting of Mg, Ca, Sr, Ba, Al, Nb, Zr and Si, or any combination thereof, if A is Ir: the group consisting of Mg, Ca, Sr, Ba, Al, Nb and Zr, or any combination thereof, and if A is W: the group consisting of Mg, Ca, Si, Sr, Al and Zr or any combination thereof, and the total amount being set to q; O is oxygen; D: if A is Ni or W: D is an element selected from the group consisting of H, F and N or any combination thereof, and if A is Ir: D is H; and E z is an optional amount of Li, Na or K, or any combination thereof, wherein, if A is Ni, the ratio q/p is greater than 0.2 and less than 3.5, if A is Ir, the ratio q/p is greater than 0.2 and less than 3.5, and if A is W, the ratio q/p is greater than 0.5 and less than 3.5, and wherein x is greater than 0.5(p+q) and less than 5(p+q) and that y is equal to or greater than 0 and less than 2x.