Separated flow liquid catholyte aluminum hydrogen peroxide seawater semi fuel cell
US6849356B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 3, 2002 |
| Grant date | Feb 1, 2005 |
| Priority date | — |
| Expiry date | Mar 8, 2023 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01M12/065
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The present invention relates to an improved semi-fuel cell and an improved cathode used therein. The semi-fuel cell stack comprises a housing, an anode within the housing, a porous cathode within the housing, an aqueous catholyte within the housing, an aqueous anolyte stream flowing in the housing, and a membrane for preventing migration of the catholyte through the porous cathode and into the anolyte stream. In a preferred embodiment of the present invention, the catholyte comprises an aqueous hydrogen peroxide solution, the anolyte comprises a NaOH/seawater solution, and the membrane permits passage of OH− ions while inhibiting the passage of hydrogen peroxide. The membrane is attached to a surface of the cathode or alternatively, impregnated into the cathode.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.