Method for forming a micro fuel cell
US7776386B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 31, 2007 |
| Grant date | Aug 17, 2010 |
| Priority date | — |
| Expiry date | May 31, 2029 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49108
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A method is provided for fabricating an integrated micro fuel cell that derives power from a three-dimensional fuel/oxidant interchange having increased surface area and that is positioned on a second substrate that may be either porous or flexible with gas access holes, thereby avoiding precise alignment requirements of the openings providing fuel thereto. The method comprises forming on a first substrate, a plurality of pedestals including an anode and a cathode each comprising a porous metal; positioning an electrolyte between the anode and the cathode; and forming first metal contacts on the anode and cathode. The first substrate is removed and a second substrate is positioned against the fuel cell wherein the first metal contacts are selectively positioned to make electrical contact with second metal contacts on the second substrate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.