FUEL CELL STACK WITH MEMBRANE ELECTRODE UNIT AND DISTRIBUTOR SHEET

Title:

FUEL CELL STACK WITH MEMBRANE ELECTRODE UNIT AND DISTRIBUTOR SHEET

Document Type and Number:

WIPO Patent Application WO2002039529

Kind Code:

A3

Abstract:

The invention relates to a fuel cell stack with gaseous fuel, comprising a membrane electrode unit (8) and a distribution sheet (1), comprising a channel region (2) with gas channels (3) for the distribution of the anode or cathode gases the membrane electrode unit (8) and a port region (4) for introduction of the anode and cathode gas into the channel region (2). According to the invention, additional connection channels (6) from the port regions (4) open out along the gas channels (3) such that unused anode or cathode gas from the port regions (4) may be locally dosed into the gas channels (3) by means of said connection channels (6).

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Inventors:

BLANK FELIX (DE)
HELLER COSMAS (DE)
SCHMID OTTMAR (DE)

Application Number:

PCT/DE2001/004158

Publication Date:

September 12, 2003

Filing Date:

November 06, 2001

Export Citation:

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Assignee:

DAIMLER CHRYSLER AG (DE)
BLANK FELIX (DE)
HELLER COSMAS (DE)
SCHMID OTTMAR (DE)

International Classes:

H01M8/02; H01M8/0258; H01M8/0265; H01M8/04; H01M8/04089; H01M8/04291; (IPC1-7): H01M8/02; H01M8/04

Other References:

PATENT ABSTRACTS OF JAPAN vol. 017, no. 549 (E - 1443) 4 October 1993 (1993-10-04)
PATENT ABSTRACTS OF JAPAN vol. 2000, no. 06 22 September 2000 (2000-09-22)

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