Method of making a gas diffusion media and quality controls...

Details Method of making a gas diffusion media and quality controls... Method of making a gas diffusion media and quality controls...

2005-08-16

2005-08-16

Williams, Hezron (Department: 2856)

Measuring and testing

Testing of material

C073S866000, C073S038000, C073S064470, C429S006000

Reexamination Certificate

active

06928893

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.

REFERENCES:
patent: 5346780 (1994-09-01), Suzuki
patent: 5763113 (1998-06-01), Meltser et al.
patent: 6103077 (2000-08-01), DeMarinis et al.
patent: 6350539 (2002-02-01), Wood, III et al.
patent: 6444602 (2002-09-01), DeMarinis et al.
patent: 2003/0104267 (2003-06-01), Haridoss et al.
patent: 0 731 520 (1996-09-01), None
patent: WO 97/50143 (1997-12-01), None

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