Electrochromic window with integrated bus bars
First Claim
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1. In a laminated article having variable transmittance in response to electric potential wherein the article includes:
- electrode means comprising an electroconductive film on a surface of a transparent substrate and an electrochromic film in contact with the electroconductive film;
counter electrode means comprising an ion-conductive layer in contact with current conducting means; and
the ion-conductive layer of the counter electrode means in contact with the electrochromic film of the electrode means,the improvement comprising;
the electrode means comprising;
at least one current conducting member in electrical contact with surface portions of the electroconductive film; and
means providing electrical connection to said at least one current conducting member.
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Abstract
An electrochromic window includes a first transparent substrate, an electroconductive film electrode, a transparent electrochromic film in contact with said electroconductive film, an ion-conductive layer in contact with said electrochromic film, a counter electrode in contact with said ion-conductive layer, and a second transparent substrate overlaying the counter electrode. A plurality of bus bars extend across the electroconductive film electrode to distribute electrical current throughout the film electrode and provide a more uniform current density between the film electrode and the counter electrode.
109 Citations
19 Claims
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1. In a laminated article having variable transmittance in response to electric potential wherein the article includes:
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electrode means comprising an electroconductive film on a surface of a transparent substrate and an electrochromic film in contact with the electroconductive film; counter electrode means comprising an ion-conductive layer in contact with current conducting means; and the ion-conductive layer of the counter electrode means in contact with the electrochromic film of the electrode means, the improvement comprising; the electrode means comprising; at least one current conducting member in electrical contact with surface portions of the electroconductive film; and means providing electrical connection to said at least one current conducting member. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. In a method of making a laminated article having variable transmittance in response to electric potential wherein the method includes the steps of:
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providing an electrochromic film in contact with an electroconductive film to define a conductive laminate; mounting the conductive laminate on a surface of a transparent substrate to define an electrode means; providing an ion-conductive layer in contact with current conducting means to define a counter electrode means; and contacting the ion-conductive layer of the counter electrode means and the electrochromic film of the electrode means; the improved method comprising the steps of; providing at least one current conducting member in electrical contact with the electroconductive film; and providing electrical access to the at least one current conducting member. - View Dependent Claims (19)
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Specification