Photovoltaically self-charging storage system
US6541697B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 19, 2001 |
| Grant date | Apr 1, 2003 |
| Priority date | — |
| Expiry date | Nov 19, 2021 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S136/291
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The present invention relates to a photovoltaically self-charging storage system having a layer structure in which a first material (1), which forms a first redox system, a second material (2), which forms a second redox system, and a photosensitive material (3) are arranged in or between a first (4) and a second electrically conductive layer (5). At least one of the electrically conductive layers (4, 5) is transparent for visible light. The first and the second material (1, 2) are each in electrical contact with one of the electrically conductive layers (4, 5) and arranged in the layer structure in such a manner that, due to the effect of light, the photosensitive material (3) induces a redox reaction Aox+Bred→Ared+Box, which can be reversed if light ceases. The thickness of the layer over which the first (1) and/or second material (2) extends is configured in such a manner that a charge storage sufficient for operating an electrical consumer is made possible. The additional introduction of a catalyst material accelerating said back reaction enables the spatial separation of the direct reaction and the back reaction. The inventive system enables the photovoltaic conversion a…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.