Electrochromic device and manufacturing method therefor

Patent metadata

Field	Value
Publication number	US-10481457-B2
Application number	US-201716307833-A
Country	US
Kind code	B2
Filing date	Jul 6, 2017
Priority date	Jul 7, 2016
Publication date	Nov 19, 2019
Grant date	Nov 19, 2019

Abstract

An electrochromic device, the electrochromic device including a substrate; a first electrode provided on the substrate; an ion storage layer provided on the first electrode; a polymer electrolyte layer provided on the ion storage layer; an electrochromic layer provided on the polymer electrolyte layer; and a second electrode provided on the electrochromic layer, wherein the ion storage layer includes Mo a Ti b O x N y , and a, b, x and y are the same as or different from each other and each independently is a real number of greater than or equal to 0.5 and less than or equal to 60. Also included is a method for manufacturing an electrochromic device.

First claim

The invention claimed is:

1. An electrochromic device, comprising:
a substrate;
a first electrode provided on the substrate;
an ion storage layer provided on the first electrode;
a polymer electrolyte layer provided on the ion storage layer;
an electrochromic layer provided on the polymer electrolyte layer; and
a second electrode provided on the electrochromic layer,
wherein the ion storage layer includes Mo a Ti b O x N y , wherein a, b, x and y are the same as or different from each other and each independently is a real number of greater than or equal to 0.5 and less than or equal to 60.

2. The electrochromic device of claim 1 , wherein the ion storage layer has a thickness of greater than or equal to 20 nm and less than or equal to 100 nm.

3. The electrochromic device of claim 1 , wherein the ion storage layer has a refractive index of 1.8 to 2.9 at a 550 nm wavelength.

4. The electrochromic device of claim 1 , wherein a and b satisfy the following Equation (1) and x and y satisfy the following Equation (2):

0.5
<

a
b

<
1.5

(
1
)

0.1
<

x
y

<
5.

(
2
)

5. The electrochromic device of claim 1 , wherein the electrochromic layer includes an oxide including tungsten (W).

6. The electrochromic device of claim 1 , wherein the electrochromic layer has a thickness of greater than or equal to 20 nm and less than or equal to 1 μm.

7. The electrochromic device of claim 1 , further comprising a film on the second electrode.

8. A method for manufacturing an electrochromic device comprising:
forming a first electrode on a substrate;
forming an ion storage layer on the first electrode;
forming an electrochromic layer on a second electrode; and
forming a polymer electrolyte layer between the ion storage layer and the electrochromic layer,
wherein the ion storage layer includes Mo a Ti b O x N y , wherein a, b, x and y are the same as or different from each other and each independently is a real number of greater than or equal to 0.5 and less than or equal to 60.

9. The method for manufacturing an electrochromic device of claim 8 , wherein the forming of an ion storage layer and the forming of an electrochromic layer are conducted using a vacuum deposition method or direct current sputtering (DC sputtering).

10. The method for manufacturing an electrochromic device of claim 8 , wherein a and b satisfy the following Equation (1) and x and y satisfy the following Equation (2):

0.5
<

a
b

<
1.5

(
1
)

0.1
<

x
y

<
5.

(
2
)

11. The method for manufacturing an electrochromic device of claim 8 , wherein the electrochromic layer includes an oxide including tungsten (W).

12. The electrochromic device of claim 1 , wherein the ion storage layer has a thickness of greater than or equal to 20 nm and less than or equal to 240 nm.

Assignees

• Lg Chemical Ltd

Inventors

• Kim Yong Chan
• Kim Ki-Hwan

Classifications

• G02F2001/1536

  additional, e.g. protective, layer inside the cell · CPC title

• G02F1/1525 Primary

  characterised by a particular ion transporting layer, e.g. electrolyte · CPC title

• C01G39/00

  Compounds of molybdenum · CPC title

• E06B9/24 Primary

  Screens or other constructions affording protection against light, especially against sunshine; Similar screens for privacy or appearance; {Slat blinds}(operating, guiding or securing devices or arrangements for roll-type closures E06B9/56; free-hanging flexible screens A47H23/00) · CPC title

• C01G41/02

  Oxides; Hydroxides · CPC title