Reversible inorganic electrochromic solution device
US6122092A · kind A · utility
1Cited by
8References
6Claims
0Family size
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Key dates
| Filing date | May 20, 1999 |
| Grant date | Sep 19, 2000 |
| Priority date | — |
| Expiry date | May 20, 2019 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/1506
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
An electrochromic device (10) of reversible light-transmissivity comprises a pair of spaced-apart window plate members (11, 13) bearing electrically-conductive surface layers (12, 14) and containing an electrochromotropic electrolyte solution in the intervening space (16). The electrolyte comprises an aqueous inorganic solution of a silver salt and may further comprise a salt of a transition metal. The electrolyte solutions are responsive to varying applied voltages by transitioning between solution phases of varying light-transmissivity which, depending upon solution composition, may be persistent or passively reversible.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.