Catalyst-coated membrane with integrated sealing material...

Details Catalyst-coated membrane with integrated sealing material... Catalyst-coated membrane with integrated sealing material...

2004-09-18

2011-11-29

Gilliam, Barbara (Department: 1727)

Chemistry: electrical current producing apparatus, product, and

Fuel cell, subcombination thereof, or method of making or...

Means for joining components together

C429S479000, C429S509000

Reexamination Certificate

active

08067130

ABSTRACT:
The invention relates to a catalyst-coated ion-conducting membrane and a membrane-electrode assembly (MEA) for electrochemical devices, in particular for fuel cells. The catalyst-coated, ion-conducting membrane is provided with a sealing material which is applied in the edge region to one side of the membrane and has a thickness which corresponds to at least the total thickness of the catalyst-coated membrane. Owing to their simple, material-conserving construction, the catalyst-coated ion-conducting membranes and the membrane-electrode assemblies produced therefrom can be manufactured inexpensively. They are used in PEM fuel cells, direct methanol fuel cells (DMFCs), electrolyzers and other electrochemical devices.

REFERENCES:
patent: 6475656 (2002-11-01), Koschany et al.
patent: 6756147 (2004-06-01), Bronold et al.
patent: 6852440 (2005-02-01), Bonsel et al.
patent: 2002/0015873 (2002-02-01), Bruckner et al.
patent: 199 03 352 (2000-10-01), None
patent: 199 26 027 (2000-11-01), None
patent: WO 00/10215 (2000-02-01), None
International Search Report Dated, Mar. 2, 2005.
Written Opinion of the International Searching Authority dated Mar. 2, 2005.

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