Catalyst layer, membrane electrode assembly, and electrochemical cell
US9276269B2 · kind B2 · utility
0Cited by
1References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 27, 2012 |
| Grant date | Mar 1, 2016 |
| Priority date | — |
| Expiry date | Sep 27, 2032 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/50
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A catalyst layer containing a catalyst material, the catalyst layer having a porosity of 20 to 90% by vol and satisfying a relation: R1≧R0×1.2, wherein R1 is an alignment ratio of the catalyst layer; and R0 is an alignment ratio of the catalyst material in powder form having a random crystalline plane distribution, and each of the alignment ratios is calculated from a X-ray diffraction spectrum having a diffraction angle 2θ range from 10 to 90 degree measured using Cu-Kα-rays.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.