Ionic liquid electrolyte
US8114318B2 · kind B2 · utility
8Cited by
5References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 13, 2007 |
| Grant date | Feb 14, 2012 |
| Priority date | — |
| Expiry date | Nov 22, 2028 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The present invention relates to electrolytes comprising tetracyanoborate and an organic cation as components of electrolytes in electrochemical and/or optoelectronic devices, in particular solar cells. This ionic liquid has low viscosity and can be used as electrolyte in the absence of a solvent. Importantly, the ionic liquid remains stable in solar cells even after prolonged thermal stress at 80° C. for 1000 hours. Photovoltaic conversion efficiency remained stable and keeping more than 90% of the initial value.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.