Fuel cell
US9203102B2 · kind B2 · utility
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10Claims
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Key dates
| Filing date | Jul 8, 2013 |
| Grant date | Dec 1, 2015 |
| Priority date | — |
| Expiry date | Mar 6, 2034 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/50
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A membrane electrode assembly of a fuel cell includes a solid polymer electrolyte membrane, a cathode, and an anode. The surface size of a cathode side electrode catalyst layer of the cathode is smaller than the surface size of an anode side electrode catalyst layer of the anode. An inner end of a gas impermeable film provided around the anode side electrode catalyst layer and an outer end of a cathode side electrode catalyst layer are overlapped with each other on both sides of the solid polymer electrolyte membrane.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.