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US 5,069,535 AGranted
Electrochromic layer-set
AssigneeSchott Glaswerke
InventorsFriedrich G. K. Baucke, Jutta Braun, Bernd Metz
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AssigneeSchott Glaswerke
InventorsFriedrich G. K. Baucke, Jutta Braun, Bernd Metz
Estimating the term…
An electrochromic layer-set, operating with hydrogen, comprises a transparent substrate front face plate, at least two electrodes, at least one electrochromic layer, a hydrogen ion-storing layer, a hydrogen ion-conducting layer, a rear face in sealing relationship with the layer-set, directly following one of the two electrodes, there being a metallic layer between the rear face and the layer lying in front of the rear face (the electrode) or the rear face itself is formed by this metallic layer. The side of the metallic layer turned away from the substrate plate is optionally transformed into the oxide of the metal. For the application of such a metallic layer, the layer-set and a counter-electrode are immersed in an electrolyte containing the metal ions, with the electrode lying at the rear face of the layer-set being made the negative electrode.
An electrochromic layer-set comprising a transparent substrate plate, arranged on the front face of the layer-set, a transparent electrode, at least one electrochromic layer, a hydrogen-storing layer, a hydrogen ion-conducting layer, at least one additional electrode, a catalytic layer being simultaneously capable of functioning as an electrode, a rear face in immediate contact with the catalytic layer, said rear face comprising a metallic layer,
A process of electrolytically sealing an electrochromic layer-set comprising immersing the electrochromic layer-set and a counter-electrode in a solution of metal ions, said layer-set comprising an electrode at one end functioning as a negative electrode, said counter-electrode functioning as a positive electrode, and electrolytically depositing a metal layer from said metal ions, said metal layer being deposited on said negative electrode in a sufficient depth to seal the electrochromic layers set to prevent hydrogen and water from leaking from said layer-set and to prevent ambient oxygen from diffusing out the layer-set which would otherwise react with hydrogen.
A process of improving the sealing of an electrochromic layer-set having a metal sealing layer, said metal layer having a posterior side facing away from the electrochromic layer-set, said process comprising oxidizing said posterior side of said metal layer.
An electrochromic layer-set comprising:
An electrochromic layer-set having an electrolytically deposited metal sealing layer of 5 to 10 microns.
Dependencies are inferred from the claim text.