Electrochromic devices
First Claim
1. A window coating comprising an electrochromic device, the electrochromic device comprising:
- (a) an electrochromic layer comprising an electrochromic material that is operable for undergoing a first electrochromic transition; and
(b) a counter electrode layer comprising a counter electrode material that is operable for undergoing a second electrochromic transition;
wherein the electrochromic device does not contain a layer of electrically insulating, ion conducting material between the electrochromic layer and the counter electrode layer, and wherein at least one of the electrochromic layer and the counter electrode layer contain lithium.
8 Assignments
0 Petitions
Accused Products
Abstract
Conventional electrochromic devices frequently suffer from poor reliability and poor performance. Improvements are made using entirely solid and inorganic materials. Electrochromic devices are fabricated by forming an ion conducting electronically insulating interfacial region that serves as an IC layer. In some methods, the interfacial region is formed after formation of an electrochromic and a counter electrode layer. The interfacial region contains an ion conducting electronically insulating material along with components of the electrochromic and/or the counter electrode layer. Materials and microstructure of the electrochromic devices provide improvements in performance and reliability over conventional devices.
-
Citations
17 Claims
-
1. A window coating comprising an electrochromic device, the electrochromic device comprising:
-
(a) an electrochromic layer comprising an electrochromic material that is operable for undergoing a first electrochromic transition; and (b) a counter electrode layer comprising a counter electrode material that is operable for undergoing a second electrochromic transition; wherein the electrochromic device does not contain a layer of electrically insulating, ion conducting material between the electrochromic layer and the counter electrode layer, and wherein at least one of the electrochromic layer and the counter electrode layer contain lithium. - View Dependent Claims (2, 3, 4, 5, 6)
-
-
7. A window coating comprising an electrochromic device, the electrochromic device comprising:
-
a two-layer stack, the two layers of said two-layer stack being in contact with one another, said two-layer stack comprising; (a) an electrochromic layer comprising an electrochromic material that is operable for undergoing a first electrochromic transition; and (b) a counter electrode layer comprising a counter electrode material that is operable for undergoing a second electrochromic transition; wherein a region between the electrochromic layer and the counter electrode layer is ion conducting and substantially electronically insulating, and wherein at least one of the electrochromic layer and the counter electrode layer contain lithium. - View Dependent Claims (8, 9, 10, 11, 12)
-
-
13. A window coating comprising an electrochromic device, the electrochromic device comprising:
-
(a) an electrochromic layer comprising an electrochromic material that can undergo a first electrochromic transition; and (b) a counter electrode layer comprising a counter electrode material that can undergo a second electrochromic transition and having an interface with the electrochromic layer; wherein during operation, the electrochromic device has a leakage current of not more than about 15 μ
A/cm2, and wherein at least one of the electrochromic layer and the counter electrode layer contain lithium.- View Dependent Claims (14, 15, 16, 17)
-
Specification