Electrochromic cell with improved electrolyte system

Details Electrochromic cell with improved electrolyte system Electrochromic cell with improved electrolyte system

G - Physics

02

F

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G02F 1/01 (2006.01) G02F 1/15 (2006.01)

Patent

CA 1163011

27,845 ELECTROCHROMIC CELLS WITH IMPROVED ELECTROLYTE SYSTEM ABSTRACT OF THE INVENTION Electrochromic devices are described having a layer of electrochromic material, e.g. WO3, in contact with a layer of organic electrolyte resin, with elec- trodes for changing electrochromic properties of the de- vice by reversibly applying electric fields across said layers. The electrolyte resin layer comprises a hydro- philic layer of homopolymer of poly(2-acrylamido-2-methyl- propanesulfonic acid) and in some preferred embodiments may further comprise a thinner layer of less hydrophilic electrolyte resin between the homopolymer and electro- chromic layers.

356721

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