Laminated and sealed electrochromic window
First Claim
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1. An article of manufacture having variable transmittance in response to an electric field comprising:
- a. a first transparent substrate;
b. an electroconductive electrode member;
c. a transparent electrochromic film in contact with said electroconductive electrode member;
d. a preformed, preconditioned ion-conductive polymer sheet in contact with said electrochromic film;
e. a counter electrode in contact with said ion-conductive polymer sheet;
f. a second transparent substrate which in combination with said first transparent substrate form the walls of an electrochromic cell; and
g. a moisture vapor barrier surrounding the perimeter of said cell.
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Abstract
An electrochromic transparency comprising an electrochromic film and a preformed, preconditioned ion-conductive polymer sheet laminated between a pair of electrode bearing cell members is disclosed wherein the optimum moisture content of the ion-conducting polymer sheet is maintained by means of a moisture vapor barrier surrounding the perimeter of the cell.
122 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 first transparent substrate; b. an electroconductive electrode member; c. a transparent electrochromic film in contact with said electroconductive electrode member; d. a preformed, preconditioned ion-conductive polymer sheet in contact with said electrochromic film; e. a counter electrode in contact with said ion-conductive polymer sheet; f. a second transparent substrate which in combination with said first transparent substrate form the walls of an electrochromic cell; and g. a moisture vapor barrier surrounding the perimeter of said cell. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method for producing an electrochromic cell comprising the steps of:
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a. forming a sheet of polymer electrolyte; b. conditioning said sheet to a desired moisture content; c. laminating said sheet between a pair of transparent substrates encompassing transparent electrodes and a transparent electrochromic film to form an electrochromic cell; and d. sealing the perimeter of said cell with a moisture vapor barrier. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification