Resin-framed stepped membrane electrode assembly for fuel cell
US10476086B2 · kind B2 · utility
1Cited by
0References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 8, 2017 |
| Grant date | Nov 12, 2019 |
| Priority date | — |
| Expiry date | Nov 3, 2037 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/50
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A resin-framed stepped membrane electrode assembly for a fuel cell, includes a stepped membrane electrode assembly and a resin frame member. The resin frame member surrounds a membrane outer periphery end of a solid polymer electrolyte membrane and includes an inner protruding portion protruding from the membrane outer periphery end toward a second electrode and is joined to the stepped membrane electrode assembly with an adhesive. The inner protruding portion includes a bank portion, a groove portion, and a ledge portion. The roughness of the bank surface is smaller than a roughness of the groove surface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.