Ternary nickel oxide materials for electrochromic devices

Patent metadata

Field	Value
Publication number	US-8995041-B2
Application number	US-201313961184-A
Country	US
Kind code	B2
Filing date	Aug 7, 2013
Priority date	Aug 9, 2012
Publication date	Mar 31, 2015
Grant date	Mar 31, 2015

Abstract

Compounds having the formula Li a EC 1 M1 b M2 c O x , wherein “a” ranges from about 0.5 to about 3; b+c ranges from about 0.1 to about 1; c/(b+c) ranges from about 0.1 to about 0.9; and wherein x is about 0.1 to about 50, are disclosed. Methods of making these compounds as well as their use in thin film materials and electrochromic devices are also disclosed.

First claim

What is claimed is:

1. A compound having a formula Li a EC 1 M1 b M2 c O x , wherein “a” ranges from about 0.5 to about 3; b+c ranges from about 0.1 to about 1; c/(b+c) ranges from about 0.1 to about 0.9; and wherein x is about 0.1 to about 50;
wherein “EC” is selected from the group consisting of a mixture of Ni(II) and Ni(III); a mixture of Co(II) and Co(III); a mixture of Ir(IV) and Ir(V); and a mixture of Mn(II), Mn(III), and Mn(IV);
“M1” is selected from the group consisting of Zr(IV); Hf(IV); Ta(V); Nb(V); and W(VI); and
“M2” is selected from the group consisting of V(V); Ta(V); Mo(VI); Nb(V); Mn(IV); La(III); and Ce(IV).

2. The compound of claim 1 , where x is an integer ranging from about 0.1 to about 50.

3. The compound of claim 1 , where x is an integer ranging from about 1 to about 6.

4. The compound of claim 1 , where “a” ranges from about 1 to about 2.6.

5. The compound of claim 1 , where b+c ranges from about 0.2 to about 0.45.

6. The compound of claim 1 , where c/(b+c) ranges from about 0.55 to about 0.75.

7. The compound of claim 1 , where:
“a” ranges from about 1.4 to about 2.2;
b+c ranges from about 0.25 to about 0.35; and
c/(b+c) ranges from about 0.6 to about 0.7.

8. An electrochromic device comprising:
(a) a first electrode comprising one of a electrochromic layer or a counter electrode layer,
(b) a second electrode comprising other of the electrochromic layer or the counter electrode layer,
(c) an ion-conductor layer for conducting ions between the first and second electrodes,
(d) a first conductive layer, and
(e) a second conductive layer,
the first and second electrodes and the ion-conductor layer being sandwiched between the first and second conductive layers,
the counter electrode layer comprising a material having a formula Li a EC1M1 b M2 c O x , where
“EC” is an electrochromic metal species,
“M1” is a host-oxide metal species, and
“M2” is a dopant oxide metal species, and
“a” ranges from about 0.5 to about 3; b+c ranges from about 0.1 to about 1; c/(b+c) ranges from about 0.1 to about 0.9; and wherein x is about 0.1 to about 50.

9. The electrochromic device of claim 8 , wherein “EC” is selected from the group consisting of a mixture of Ni(II) and Ni(III); a mixture of Co(II) and Co(III); a mixture of Ir(IV) and Ir(V); and a mixture of Mn(II), Mn(III), and Mn(IV).

10. The electrochromic device of claim 8 , wherein “M1” is selected from the group consisting of Zr(IV); Hf(IV); Ta(V); Nb(V); and W(VI).

11. The electrochromic device of claim 8 , wherein “M2” is selected from the group consisting of V(V); Ta(V); Mo(VI); Nb(V); Mn(IV); La(III); or Ce(IV).

12. The device of claim 8 , wherein the counter electrode layer comprises Li 1.82 NiW 0.45 O x , and wherein x ranges from about 0.1 to about 50.

13. The device of claim 8 , wherein the counter electrode layer comprises Li 1.97 NiZr 0.23 O x , and wherein x ranges from about 0.1 to about 50.

14. The device of claim 8 , wherein the counter electrode layer comprises Li 0.51 NiZr 0.16 La 0.19 O x , and wherein x ranges from about 0.1 to about 50.

15. The device of claim 8 , wherein the counter electrode layer comprises Li 2.22 NiZr 0.14 Mo 0.25 O x , and wherein x ranges from about 0.1 to about 50.

16. The device of claim 8 , wherein the counter electrode layer comprises Li 3.12 NiZr 0.15 Ta 0.15 O x , and wherein x ranges from about 0.1 to about 50.

17. The device of claim 8 , wherein the counter electrode layer comprises Li 2.65 NiZr 0.18 V 0.60 O x , and wherein x ranges from about 0.1 to about 50.

18. An electrochromic device comprising a substrate and at least one thin film layer, wherein the thin film layer is comprised of a material selected from the group consisting of Li 1.82 NiW 0.45 O x ; Li 1.97 NiZr 0.23 O x ; Li 0.51 NiZr 0.16 La 0.19 O x ; Li 2.22 NiZr 0.14 Mo 0.25 O x ; Li 3.12 NiZr 0.15 Ta 0.15 O x ; and Li 2.65 NiZr 0.18 V 0.60 O x , wherein x ranges from about 0.1 to about 50.

19. The electrochromic device of claim 18 , wherein x ranges from about 1 to about 6.

20. The electrochromic device of claim 18 , wherein x ranges from about 1.6 to about 5.4.

Assignees

• Sage Electrochromics Inc
• Nat Renewable Energy Lab
• Alliance Sustainable Energy

Inventors

• Weir Douglas Glenn John
• Lin Feng
• Engtrakul Chaiwat

Classifications

• H01M4/382

  Lithium (H01M4/405 takes precedence) · CPC title

• H01M4/505

  of mixed oxides or hydroxides containing manganese for inserting or intercalating light metals, e.g. LiMn2O4 or LiMn2OxFy · CPC title

• G02F2001/1502

  complementary cell · CPC title

• H01M4/48

  of inorganic oxides or hydroxides · CPC title

• C23C14/3414

  Metallurgical or chemical aspects of target preparation, e.g. casting, powder metallurgy · CPC title