Cathode catalyst layer, membrane electrode assembly and polymer electrolyte fuel cell and manufacturing method thereof
US9431661B2 · kind B2 · utility
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9Claims
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Key dates
| Filing date | Dec 20, 2011 |
| Grant date | Aug 30, 2016 |
| Priority date | — |
| Expiry date | Oct 18, 2032 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P70/50
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A cathode catalyst layer used for a polymer electrolyte fuel cell that includes an electrolyte membrane is provided. The cathode catalyst layer comprises a catalyst having weight of not greater than 0.3 mg/cm2 of a reaction surface of the cathode catalyst layer that is adjoining the electrolyte membrane; and an electrolyte resin having oxygen permeability of not less than 2.2*10−14 mol/m/s/Pa in an environment of temperature of 80 degrees Celsius and relative humidity of 50%.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.