Fuel cell providing improved stack and cooling plate

Details Fuel cell providing improved stack and cooling plate Fuel cell providing improved stack and cooling plate

2011-03-29

2011-03-29

Crepeau, Jonathan (Department: 1725)

Chemistry: electrical current producing apparatus, product, and

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

Grouping of fuel cells into stack or module

C429S456000, C429S509000, C429S511000, C528S503000, C361S711000

Reexamination Certificate

active

07914940

ABSTRACT:
A fuel cell stack having an improved sealing structure of a cooling plate in which the cooling plates therein each have a coolant flow channel through which a coolant flows to remove heat from the fuel cell stack and a groove that surrounds the coolant flow channel, and a sealing member disposed in the groove to prevent coolant leakage. The sealing member has a compression rate of 18 to 30%, as the compression rate being ((a thickness of the sealing member−a height of the groove)/the thickness of the sealing member)×100. Such a fuel cell stack may maintain operation for a long time without the need of supplementing the coolant.

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“Viton O-Rings”, Product Sheet, Allied Metrics, Sparta NJ., 2008. Retrieved online on Sep. 21, 2009 from http://www.alliedmetrice.com/viton-o-rings.pht.
“Viton Rubber Gasket”, Product Sheet, MB Traders, Secunderbad, India., Retrieved online on Sep. 21, 2009 from http://www.trademart.in/lead-0022987.html.

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