Gas diffusion electrode and production method for same; membrane electrode assembly and production method for same
US9029045B2 · kind B2 · utility
1Cited by
2References
32Claims
0Family size
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Key dates
| Filing date | Jun 25, 2010 |
| Grant date | May 12, 2015 |
| Priority date | — |
| Expiry date | Dec 28, 2031 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P70/50
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
[Object] To provide a gas diffusion electrode capable of a high current density operation of a fuel cell.[Solving means] A gas diffusion electrode including a hydrophilic porous layer having an electrically conductive material and an ion conductive material; and a catalyst layer adjacent to the hydrophilic porous layer, wherein a water transport resistance of the hydrophilic porous layer is smaller than a water transport resistance of the catalyst layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.