Method of making a gas diffusion media and quality controls for same
US7284411B2 · kind B2 · utility
2Cited by
12References
20Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 12, 2005 |
| Grant date | Oct 23, 2007 |
| Priority date | — |
| Expiry date | Oct 19, 2025 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N15/0893
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The present invention discloses various methods in which a quality of a diffusion media for use in a fuel cell assembly can be qualitatively evaluated. The material constant, an internal contact angle, a ratio of high and low energy pores, and an external contact angle can be calculated for the diffusion media and compared to a predetermined standard to evaluate the quality of the diffusion media.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.