Composite electrode for a photo-rechargeable storage battery
US5672444A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 22, 1996 |
| Grant date | Sep 30, 1997 |
| Priority date | — |
| Expiry date | Mar 22, 2016 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49115
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A composite electrode for a photo-rechargeable storage battery includes a filter paper of glass fiber as a base material; a polypyrrole film coated on a surface of the filter paper to provide a conductive polymer; and a gel of polytungustic acid provided on the polypyrrole film in the form of a cluster to provide a photo-catalytic property. The polypyrrole film may be vapor phase polymerized and coated onto a surface of the filter paper and the gel of polytungustic acid may be vapor phase coated onto the polypyrrole film in the form of a cluster. Thus, all electrode manufacturing steps can be carried out in the vapor phase so that manufacturing of such an electrode having a very large specific surface area is practical and large electrode areas may be manufactured.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.