Paper counter-electrode for electrochromic devices
First Claim
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1. In a variable light modulating device of the electrochromic type having an arrangement comprising a light transmitting substrate having a persistent electrochromic material as a light modulating material and a counter-electrode separated from said electrochromic material by an ion-conducting material, an improved counter-electrode structure consisting essentially of a paper sheet including a web of filaments permeated with carbon.
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Abstract
Disclosed is a method for forming a counter-electrode in a variable light modulating device of the electrochromic type. The counter-electrode is a paper composition of fibrous pulp and carbon.
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Citations
16 Claims
- 1. In a variable light modulating device of the electrochromic type having an arrangement comprising a light transmitting substrate having a persistent electrochromic material as a light modulating material and a counter-electrode separated from said electrochromic material by an ion-conducting material, an improved counter-electrode structure consisting essentially of a paper sheet including a web of filaments permeated with carbon.
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6. A process for making a paper counter-electrode for an electrochromic variable light modulating device comprising:
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blending an aqueous suspension of fibrous material with powdered carbon to form an aqueous mixture, forming a sheet of the solids from said aqueous mixture, drying and pressing said sheet to form a paper material to be used as a counter-electrode for an electrochromic device. - View Dependent Claims (7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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Specification