ELECTROCHROMIC ELEMENTS USING ANTIOXIDANTS TO SUPPRESS SELF-DISCHARGING
First Claim
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1. A process for suppressing self-discharging in an electrochromic element, comprising:
- adding at least one antioxidant with a first concentration to an electrochromic element having an ion conducting component.
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Abstract
The invention relates to the use of antioxidants of different kinds and concentrations in electrochromic elements having an ion conducting component to suppress self-discharging. In comparison to electrochromic elements known from prior art, electrochromic elements according to the invention show a significantly smaller increase in transmissivity for a period of time after the electric current necessary to decrease transmissivity is switched off. The use of sterically hindered amines and/or 1,3,5-trisubstituted phenols has proven particularly effective for this purpose.
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Citations
15 Claims
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1. A process for suppressing self-discharging in an electrochromic element, comprising:
adding at least one antioxidant with a first concentration to an electrochromic element having an ion conducting component. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. An electrochromic element comprising:
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first and second electrodes that are substantially optically transparent and electrically conducting; first and second electrochromic layers; and an ion conducting component containing an antioxidant. - View Dependent Claims (10, 11, 12, 13, 14, 15)
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Specification