Electrochromic device and electrochromic dimming device

Patent metadata

Field	Value
Publication number	US-10126623-B2
Application number	US-201615372651-A
Country	US
Kind code	B2
Filing date	Dec 8, 2016
Priority date	Dec 16, 2015
Publication date	Nov 13, 2018
Grant date	Nov 13, 2018

Abstract

An electrochromic device including: first substrate; first electrode-layer on the first substrate; electrochromic layer on the first electrode-layer; second substrate facing the first substrate; second electrode-layer formed on surface of the second substrate at side of the first substrate; electrolyte layer formed between the electrochromic layer and the second electrode-layer and curable at least with ultraviolet rays; first extraction electrode to electrically connect between the first electrode-layer and power source and including region that does not transmit ultraviolet rays in at least part of the first extraction electrode; and second extraction electrode to electrically connect between the second electrode-layer and the power source and including region that does not transmit ultraviolet rays in at least part of the second extraction electrode, the region in the first extraction electrode and the region in the second extraction electrode being arranged not to overlap with each other.

First claim

What is claimed is:

1. An electrochromic device comprising:
a first substrate;
a first electrode layer formed on the first substrate;
an electrochromic layer formed on the first electrode layer;
a second substrate facing the first substrate;
a second electrode layer formed on a surface of the second substrate at a side of the first substrate;
an electrolyte layer, which is formed between the electrochromic layer and the second electrode layer, and is curable at least with ultraviolet rays;
a first extraction electrode, which is configured to electrically connect between the first electrode layer and a power source, and includes a region that does not transmit ultraviolet rays in at least part of the first extraction electrode; and
a second extraction electrode, which is configured to electrically connect between the second electrode layer and the power source, and includes a region that does not transmit ultraviolet rays in at least part of the second extraction electrode,
wherein the region that does not transmit ultraviolet rays in the first extraction electrode and the region that does not transmit ultraviolet rays in the second extraction electrode are arranged not to overlap with each other, and
wherein at least one of (i) the region that does not transmit ultraviolet rays in the first extraction electrode and (ii) the region that does not transmit ultraviolet rays in the second extraction electrode is a region including an Ag alloy, and
wherein the first extraction electrode, including the region that does not transmit ultraviolet rays, contacts the first electrode layer and contacts the electrochromic layer.

2. The electrochromic device according to claim 1 ,
wherein the region that does not transmit ultraviolet rays in the extraction electrode is a region including at least one metal selected from the group consisting of Au, Ag, Al, Zn, Zr, Ge, Pt, Rd, Ni, W, Pd, Cr, Mo, Cu, and Rh, or an alloy including any of foregoing metals.

3. The electrochromic device according to claim 1 ,
wherein the electrochromic device has a curvature.

4. The electrochromic device according to claim 3 ,
wherein the curvature is formed by thermoforming.

5. An electrochromic device comprising:
a first substrate;
a first electrode layer formed on the first substrate;
an electrochromic layer formed on the first electrode layer;
a second substrate facing the first substrate;
a second electrode layer formed on a surface of the second substrate at a side of the first substrate;
an electrolyte layer, which is formed between the electrochromic layer and the second electrode layer, and is curable at least with ultraviolet rays;
a first extraction electrode, which is configured to electrically connect between the first electrode layer and a power source, and includes a region that does not transmit ultraviolet rays in at least part of the first extraction electrode; and
a second extraction electrode, which is configured to electrically connect between the second electrode layer and the power source, and includes a region that does not transmit ultraviolet rays in at least part of the second extraction electrode,
wherein the region that does not transmit ultraviolet rays in the first extraction electrode and the region that does not transmit ultraviolet rays in the second extraction electrode are arranged not to overlap with each other, and
wherein the region that does not transmit ultraviolet rays in the extraction electrode is a region including Ag—Pd—Cu alloy.

6. The electrochromic device according to claim 5 ,
wherein the electrochromic device has a curvature.

7. The electrochromic device according to claim 6 ,
wherein the curvature is formed by thermoforming.

8. An electrochromic dimming device comprising:
an electrochromic device, which comprises:
a first substrate;
a first electrode layer formed on the first substrate;
an electrochromic layer formed on the first electrode layer;
a second substrate facing the first substrate;
a second electrode layer formed on a surface of the second substrate at a side of the first substrate;
an electrolyte layer, which is formed between the electrochromic layer and the second electrode layer, and is curable at least with ultraviolet rays;
a first extraction electrode, which is configured to electrically connect between the first electrode layer and a power source, and includes a region that does not transmit ultraviolet rays in at least part of the first extraction electrode; and
a second extraction electrode, which is configured to electrically connect between the second electrode layer and the power source, and includes a region that does not transmit ultraviolet rays in at least part of the second extraction electrode,
wherein the region that does not transmit ultraviolet rays in the first extraction electrode and the region that does not transmit ultraviolet rays in the second extraction electrode are arranged not to overlap with each other, and
wherein at least one of the region that does not transmit ultraviolet rays in the first extraction electrode and the region that does not transmit ultraviolet rays in the second extraction electrode is a region including an Ag alloy, and
wherein the first extraction electrode, including the region that does not transmit ultraviolet rays, contacts the first electrode layer and contacts the electrochromic layer.

9. The electrochromic dimming device according to claim 8 ,
wherein one of the region that does not transmit ultraviolet rays in the first extraction electrode and the region that does not transmit ultraviolet rays in the second extraction electrode is formed of a material including an Ag alloy, and
wherein the other of the region that does not transmit ultraviolet rays in the first extraction electrode and the region that does not transmit ultraviolet rays in the second extraction electrode is formed of a material including Ag—Pd—Cu alloy.

10. The electrochromic dimming device according to claim 8 ,
wherein the electrochromic device has a curvature.

11. The electrochromic dimming device according to claim 10 ,
wherein the curvature is formed by thermoforming.

Assignees

• Goto shun
• Yashiro Tohru
• Takeuchi Kohji
• Kim Sukchan
• Matsumoto Takahiko
• Yutani Keiichiroh
• Yaginuma Hidekazu
• Katano Yasuo
• Ohshima Atsushi
• Ricoh Co Ltd

Inventors

• Goto shun
• Yashiro Tohru
• Takeuchi Kohji
• Kim Sukchan
• Matsumoto Takahiko
• Yutani Keiichiroh
• Yaginuma Hidekazu
• Katano Yasuo
• Ohshima Atsushi

Classifications

• G02F1/155 Primary

  Electrodes · CPC title

• G02F1/1345

  Conductors connecting electrodes to cell terminals · CPC title

• G02F1/1508 Primary

  using a solid electrolyte · CPC title

• G02F1/153

  Constructional details · CPC title

• G02F2201/56

  Substrates having a particular shape, e.g. non-rectangular · CPC title