Microporous layer structures and gas diffusion layer assemblies in proton exchange membrane fuel cells
US8945790B2 · kind B2 · utility
2Cited by
4References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 15, 2013 |
| Grant date | Feb 3, 2015 |
| Priority date | — |
| Expiry date | May 25, 2033 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/50
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
In at least one embodiment, a microporous layer configured to be disposed between a catalyst layer and a gas diffusion layer of a fuel cell electrode assembly is provided. The microporous layer may have defined therein a plurality of hydrophilic pores, a plurality of hydrophobic pores with a diameter of 0.02 to 0.5 μm, and a plurality of bores with a diameter of 0.5 to 100 μm. The microporous layer structures and gas diffusion layer assemblies disclosed herein may be defined by a number of various designs and arrangements for use in proton exchange membrane fuel cell systems.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.