Title:
SEALING MEMBRANE ELECTRODE ASSEMBLIES FOR ELECTROCHEMICAL FUEL CELLS
Document Type and Number:
WIPO Patent Application WO2004057693
Kind Code:
A3
Abstract:
An elastomer may be used to construct a separate, moldable part that engages the edge of a membrane electrode assembly (MEA) to thereby seal the MEA. The seal has a groove defining two sealing portions separated by a web portion. The groove of the seal then engages the edge of the MEA and can maintain a tight fit without the need for additional adhesives. Additional features may extend laterally from the web portion to assist in separating cathode and anode plates and/or encompass, for example, manifold openings.
Inventors:
KIRBY CHRISTOPHER T (CA)
Application Number:
PCT/CA2003/001953
Publication Date:
September 23, 2004
Filing Date:
December 18, 2003
Export Citation:
Assignee:
BALLARD POWER SYSTEMS (CA)
KIRBY CHRISTOPHER T (CA)
KIRBY CHRISTOPHER T (CA)
International Classes:
H01M2/08; H01M8/02; H01M8/10; (IPC1-7): H01M8/02
Domestic Patent References:
| WO2000010216A1 | 2000-02-24 |
Foreign References:
| EP1246281A1 | 2002-10-02 | |||
| EP1156546A1 | 2001-11-21 | |||
| GB2368968A | 2002-05-15 |
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