Electrochromic lithium nickel group 5 mixed metal oxides

Patent metadata

Field	Value
Publication number	US-2021096435-A1
Application number	US-202017101848-A
Country	US
Kind code	A1
Filing date	Nov 23, 2020
Priority date	Jan 21, 2013
Publication date	Apr 1, 2021
Grant date	—

Abstract

Multi-layer devices comprising a layer of an electrochromic lithium nickel oxide composition on a first substrate, the lithium nickel oxide composition comprising lithium, nickel and a Group 5 metal selected from niobium, tantalum and a combination thereof.

First claim

What is claimed is:

1 . A multi-layer device comprising a layer of a lithium nickel oxide composition on a first substrate, the lithium nickel oxide composition exhibiting long range ordering by X-ray diffraction analysis and comprising lithium, nickel, and at least one of niobium and tantalum, the lithium nickel oxide composition being characterized by a largest d-spacing of at least 2.5 Å.

2 . The multi-layer device of claim 1 wherein the lithium nickel oxide composition exhibits long range ordering as measured by the presence of at least one reflection peak in the XRD pattern below 26 degrees (20) when measured with copper Kα radiation.

3 . The multi-layer device of claim 1 wherein the lithium nickel oxide composition comprises tantalum.

4 . The multi-layer device of claim 4 wherein (i) the atomic ratio of lithium to the combined amount of nickel and tantalum in the lithium nickel oxide composition is at least 0.4:1, respectively, and (ii) the atomic ratio of the amount of tantalum to the combined amount of nickel and tantalum in the lithium nickel oxide composition is about 0.025:1 to about 0.8:1, respectively.

5 . The multi-layer device of claim 4 wherein the atomic ratio of lithium to the combined amount of nickel and tantalum in the lithium nickel oxide composition is in the range of about 0.75:1 to about 3:1, respectively.

6 . The multi-layer device of claim 4 wherein the atomic ratio of tantalum to the combined amount of nickel and tantalum in the lithium nickel oxide composition is in the range of about 0.1:1 and about 0.6:1, respectively.

7 . The multi-layer device of claim 1 wherein the lithium nickel oxide composition comprises niobium.

8 . The multi-layer device of claim 1 wherein the atomic ratio of lithium to the combined amount of nickel and niobium in the lithium nickel oxide composition is at least 0.4:1, respectively, and (ii) the atomic ratio of the amount of niobium to the combined amount of nickel and niobium in the lithium nickel oxide composition is about 0.025:1 to about 0.8:1, respectively.

9 . The multi-layer device of claim 8 wherein the atomic ratio of lithium to the combined amount of nickel and niobium in the lithium nickel oxide composition is in the range of about 0.75:1 to about 3:1, respectively.

10 . The multi-layer device of claim 8 wherein the atomic ratio of niobium to the combined amount of nickel and niobium in the lithium nickel oxide composition is in the range of about 0.1:1 and about 0.6:1, respectively.

11 . The multi-layer device of claim 1 wherein (i) the atomic ratio of lithium to the combined amount of nickel, tantalum and niobium in the lithium nickel oxide composition is at least 0.4:1, respectively, and (ii) the atomic ratio of the combined amount of tantalum and niobium to the combined amount of nickel, tantalum, and niobium in the lithium nickel oxide composition is about 0.025:1 to about 0.8:1, respectively.

12 . The multi-layer device of claim 11 wherein the atomic ratio of lithium to the combined amount of nickel, tantalum and niobium in the lithium nickel oxide composition is in the range of about 0.75:1 to about 3:1, respectively.

13 . The multi-layer device of claim 11 wherein the atomic ratio of the combined amount of tantalum and niobium to the combined amount of nickel, tantalum and niobium in the lithium nickel oxide composition is in the range of about 0.1:1 and about 0.6:1, respectively.

14 . The multi-layer device of claim 1 wherein (i) the lithium nickel oxide composition comprises at least one bleached state stabilizing element selected from the group consisting of Y, Ti, Zr, Hf, V, Mo, W, B, Al, Ga, In, Si, Ge, Sn, P, and Sb, (ii) the atomic ratio of lithium to the combined amount of nickel, tantalum, niobium and the bleached state stabilizing element(s) in the lithium nickel oxide composition is at least 0.4:1, respectively, and (iii) the atomic ratio of the combined amount of tantalum, niobium, and the bleached state stabilizing element(s) to the combined amount of nickel, tantalum, niobium, and the bleached state stabilizing elements in the lithium nickel oxide composition is about 0.025:1 to about 0.8:1, respectively.

15 . The multi-layer device of claim 14 wherein the atomic ratio of lithium to the combined amount of nickel, tantalum, niobium, and the bleached state stabilizing element(s) in the lithium nickel oxide composition is in the range of about 0.75:1 to about 3:1, respectively.

16 . The multi-layer device of claim 14 wherein the atomic ratio of the combined amount of tantalum, niobium, and the bleached state stabilizing elements to the combined amount of nickel, tantalum, niobium, and the bleached state stabilizing element(s) in the lithium nickel oxide composition is in the range of about 0.1:1 and about 0.6:1, respectively.

17 . The multi-layer device of claim 1 wherein the lithium nickel oxide composition layer has an average thickness between 25 nm and 2,000 nm.

18 . The multi-layer device of claim 1 wherein the first substrate comprises glass, plastic, metal, or metal-coated glass or plastic.

19 . The multi-layer device of claim 1 wherein the multi-layer device further comprises a first transparent conductive oxide layer and the first transparent conductive oxide layer is between the lithium nickel oxide composition layer and the first substrate.

20 . The multi-layer device of claim 1 wherein the lithium nickel oxide composition comprises at least 0.05 wt. % carbon.

21 . The multi-layer device of claim 1 wherein the lithium nickel oxide composition has a bleached state voltage of at least 2V.

22 . A multi-layer device of claim 1 wherein the multi-layer device further comprises a second substrate, a second electrically conductive layer, a cathode layer, and an ion conductor layer, wherein the first electrically conductive layer is between the first substrate and the lithium nickel oxide layer, the lithium nickel oxide layer is between the first electrically conductive layer and the ion conductor layer, the second electrically conductive layer is between the cathode layer and the second substrate, the cathode layer is between the second electrically conductive layer and the ion conductor layer, and the ion conductor layer is between the cathode layer and the lithium nickel oxide anode layer.

23 . An electrochromic device comprising the multi-layer device of claim 1 .

Assignees

• Kinestral Tech Inc

Inventors

• Choi Hye Jin
• Bailey Mark
• Bass John David
• Von Kugelgen Stephen Winthrop
• Lachman Eric
• Turner Howard W

Classifications

• Y10T428/265

  1 mil or less · CPC title

• G02F1/1524 Primary

  Transition metal compounds · CPC title

• G02F1/1523

  comprising inorganic material · CPC title