Fuel cell and electrode structure therefor
Abstract
Abstract An assembly of stacked electrodes, alternating with semipermeable diaphragms is built up, with the marginal portions of the electrodes and diaphragms formed with flow duct openings to direct electrolyte and reactants to flow lengthwise of the stack of electrodes and diaphragms and, by means of channels formed in the electrodes, to wash over the faces of the electrodes; the electrode face is embossed with projections arranged in a plurality of adjacent elementary groups, each in itself parallel to the marginal portions of the electrode, the projections themselves being formed in arrays of elongated ridges, peak points, or the like, which may be continuous or discontinuous, and which are inclined with respect to the marginal portions, the direction of inclination of adjacent groups being opposite towards each other so that the median flow direction of electrolyte and reactant washing over the face of the electrodes will be approximately perpendicular to the marginal portions from which the flow emanates.
Inventors
- 👤 B Warszawski
- 👤 H Vandenberghe
- 👤 B Verger
Bibliographic Details
Claims Analysis
Total Claims: 0References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-10-08 | 1977-04-09 | 1977-10-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-10-08 | 1981-04-09 | 1981-10-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-10-08 | 1985-04-09 | 1985-10-09 | $7700.00 | Window Closed / Lapsed |