Electrochromic window with metal grid counter electrode
First Claim
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1. An article of manufacture having variable transmittance in response to an electric field comprising:
- a. a transparent substrate;
b. an electroconductive electrode member;
c. a transparent electrochromic film in contact with said electroconductive electrode member;
d. an ion-conductive layer in contact with said electrochromic film; and
e. a metal grid counter electrode in contact with said ion-conductive layer said metal capable of balancing half cell reactions at lower absolute potentials than the electrolysis reactions of water.
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Abstract
An electrochromic transparency comprising an electrochromic film and an ion-conductive layer disposed between a pair of electrodes is disclosed wherein the optical properties and electrochromic efficiency are improved by means of a metal grid electrode.
59 Citations
20 Claims
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1. An article of manufacture having variable transmittance in response to an electric field comprising:
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a. a transparent substrate; b. an electroconductive electrode member; c. a transparent electrochromic film in contact with said electroconductive electrode member; d. an ion-conductive layer in contact with said electrochromic film; and e. a metal grid counter electrode in contact with said ion-conductive layer said metal capable of balancing half cell reactions at lower absolute potentials than the electrolysis reactions of water. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. An article of manufacture having variable transmittance in response to an electric field comprising:
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a. a transparent glass substrate; b. an electroconductive electrode member deposited on said substrate; c. a transparent electrochromic tungsten oxide film in contact with said electroconductive electrode member; d. an ion-conductive polymer layer in contact with said electrochromic film; and e. a copper grid counter electrode in contact with said ion-conductive polymer layer.
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19. An article of manufacture having variable transmittance in response to an electric field comprising:
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a. a transparent substrate; b. an electronconductive electrode member; c. a transparent electrochromic film in contact with said electroconductive electrode member; d. an ion-conductive layer in contact with said electrochromic film; and e. a metal grid counter electrode in contact with said ion-conductive layer wherein said metal grid is coated with a material which undergoes a half-cell reaction at a potential lower than that of the electrolysis of water. - View Dependent Claims (20)
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Specification