Electrode for fuel cell, and membrane-electrode assembly and fuel cell system comprising the same
US7998638B2 · kind B2 · utility
3Cited by
3References
36Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 2, 2005 |
| Grant date | Aug 16, 2011 |
| Priority date | — |
| Expiry date | Dec 4, 2029 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P70/50
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The electrode for a fuel cell of the present invention includes a catalyst layer and an electrode substrate supporting the catalyst layer, where the electrode substrate includes a hydrophilic region and a hydrophobic region separated from each other. The hydrophilic region and the hydrophobic region that are separated from each other can easily release water produced at the cathode, and thereby prevent clogging of pores of the membrane by water, and smoothly diffuse the reactants resulting in obtaining a high current density.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.