Ionomer impregnation of electrode substrates for improved fuel cell performance
US6187467A · kind A · utility
18Cited by
13References
23Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 29, 1998 |
| Grant date | Feb 13, 2001 |
| Priority date | — |
| Expiry date | Dec 29, 2018 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/50
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Liquid feed fuel cell performance can be increased by impregnating electrode substrates with a proton conducting ionomer prior to incorporation of the electrocatalyst, and optionally also after application of the electrocatalyst. Ionomer impregnation is particularly effective for direct methanol fuel cell anodes that comprise carbonaceous substrates.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.