Quality control methods for gas diffusion media

Details Quality control methods for gas diffusion media Quality control methods for gas diffusion media

2006-09-19

2006-09-19

Larkin, Daniel S. (Department: 2856)

Measuring and testing

Testing of material

C073S866000, C429S006000

Reexamination Certificate

active

07107864

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: 5763113 (1998-06-01), Meltser et al.
patent: 6329094 (2001-12-01), Yasuo et al.
patent: 6350539 (2002-02-01), Wood, III et al.
patent: 6406807 (2002-06-01), Nelson et al.
patent: 2002/0134501 (2002-09-01), Fan et al.
patent: 0 731 520 (1996-09-01), None
patent: WO 97/50143 (1997-12-01), None

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