Elektrochromes Fenster mit Polymerschicht

• Main Authors: SLOBODNIK, JOHN BENEDICT, NEW KENSINGTON, PENNSYLVANIA 15068, US, SINGLETON, DAVID ELLIS, NATRONA HEIGHTS, PENNSYLVANIA 15065, US, HO, KUOUAN, PITTSBURGH, PENNSYLVANIA 15237, US, RUKAVINA, THOMAS GEORGE, LOWER BURRELL, PENNSYLVANIA 15068, US, GREENBERG, CHARLES BERNARD, MURRYSVILLE, PENNSYLVANIA 15668, US
• Format: Patent
• Language: German
• Published: 23.10.1997
• Edition: 6
• Subjects: ADHESIVES; BASIC ELECTRIC ELEMENTS; CABLES; CHEMISTRY; CONDUCTORS; DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH ISMODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THEDEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY,COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g.SWITCHING, GATING, MODULATING OR DEMODULATING; DYES; ELECTRICITY; FREQUENCY-CHANGING; INSULATORS; MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NATURAL RESINS; NON-LINEAR OPTICS; OPTICAL ANALOGUE/DIGITAL CONVERTERS; OPTICAL LOGIC ELEMENTS; OPTICS; PAINTS; PHYSICS; POLISHES; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING ORDIELECTRIC PROPERTIES; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF

An electrochromic window (10) includes a first transparent substrate (14), an electroconductive film electrode (16), a transparent electrochromic film (18) in contact with said electroconductive film (16), an ion-conductive layer (26) in contact with said electrochromic film (18), a counter electrode (22) in contact with said ion-conductive layer (26), and a second transparent substrate (24) overlaying the counter electrode (22). A preferred copolymer electrolyte is a reaction product of a sulfonic acid monomer such as acrylamidomethylpropane sulfonic acid or ethylene sulfonic acid, and a hydrophilic acrylate comonomer such that the copolymer is curable with ultraviolet radiation. The optimum moisture content of the ion-conducting polymer sheet (26) is maintained by means of a moisture vapor barrier (38) surrounding the perimeter of the cell. A plurality of bus bars (34) extend across the electroconductive film electrode (16) to distribute electrical current throughout the film electrode and provide a more uniform current density between the film electrode (16) and the counter electrode (22).