Electrochromic devices
US8432603B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 22, 2009 |
| Grant date | Apr 30, 2013 |
| Priority date | — |
| Expiry date | Dec 22, 2029 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC03C2217/94
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
Prior electrochromic devices frequently suffer from poor reliability and poor performance. Some of the difficulties result from inappropriate design and construction of the devices. In order to improve device reliability two layers of an electrochromic device, the counter electrode layer and the electrochromic layer, can each be fabricated to include defined amounts of lithium. Further, the electrochromic device may be subjected to a multistep thermochemical conditioning operation to improve performance. Additionally, careful choice of the materials and morphology of some components of the electrochromic device provides improvements in performance and reliability. In some devices, all layers of the device are entirely solid and inorganic.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.