Chemistry: electrical current producing apparatus – product – and – Fuel cell – subcombination thereof – or method of making or... – Means for distributing – storing – or preventing fluid movement
Reexamination Certificate
2006-07-26
2010-10-12
Michener, Jennifer K (Department: 1795)
Chemistry: electrical current producing apparatus, product, and
Fuel cell, subcombination thereof, or method of making or...
Means for distributing, storing, or preventing fluid movement
Reexamination Certificate
active
07811719
ABSTRACT:
Proposed is a PEM fuel cell that comprises a separator plate assembly with a charging chamber, which is partitioned off by a partition wall and via charging spots has a fluid connection to an adjoining cathode chamber. The partition wall is designed so that the depths of the charging channels in the charging chamber and the depths of the distribution channels in the adjoining cathode chambers change in such a way that the quantity of oxidant that is charged at a charging spot from the charging chamber into the cathode chamber can be fixed in advance. As a result, the charging of oxidant, which has not been humidified or only slightly, into the cathode chamber can be improved with regard to the curve of the relative humidity along the cathode. Also proposed is a method for manufacturing a separator plate assembly suitable for a PEM fuel cell.
REFERENCES:
patent: 5683828 (1997-11-01), Spear et al.
patent: 7335437 (2008-02-01), Blank et al.
patent: 10055253 (2002-05-01), None
patent: 10346594 (2005-05-01), None
patent: 102004058117 (2006-06-01), None
patent: 102004058117 (2006-06-01), None
patent: 03001621 (2003-01-01), None
Blank Felix
Kunick Thomas
Barcena Carlos
Daimler AG
Michener Jennifer K
Patent Central LLC
Pendorf Stephan A.
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