Polymer electrolyte membrane assembly for fuel cells

Details Polymer electrolyte membrane assembly for fuel cells Polymer electrolyte membrane assembly for fuel cells

1998-09-22

2000-11-21

Bell, Bruce F.

Chemistry: electrical current producing apparatus, product, and

With pressure equalizing means for liquid immersion operation

429 30, 204296, H07M 810

Patent

active

06150047&

ABSTRACT:
An electrolyte membrane for use in a fuel cell can contain sulfonated polyphenylether sulfones. The membrane can contain a first sulfonated polyphenylether sulfone and a second sulfonated polyphenylether sulfone, wherein the first sulfonated polyphenylether and the second sulfonated polyphenylether sulfone have equivalent weights greater than about 560, and the first sulfonated polyphenylether and the second sulfonated polyphenylether sulfone also have different equivalent weights. Also, a membrane for use in a fuel cell can contain a sulfonated polyphenylether sulfone and an unsulfonated polyphenylether sulfone. Methods for manufacturing a membrane electrode assemblies for use in fuel cells can include roughening a membrane surface. Electrodes and methods for fabricating such electrodes for use in a chemical fuel cell can include sintering an electrode. Such membranes and electrodes can be assembled into chemical fuel cells.

REFERENCES:
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patent: 5086130 (1992-02-01), Dickinson et al.
patent: 5795496 (1998-08-01), Yen et al.
patent: 5882810 (1999-03-01), Mussell et al.
patent: 5906716 (1999-05-01), Mertesdorf et al.

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