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US 2001/0033958 A1Published application
Thin graphite bipolar plate with associated gaskets and carbon cloth flow-field for use in an ionomer membrane fuel cell
OwnerGeorge A. Marchettiinventor
Life of this patent
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Abstract
The present invention comprises a thin graphite plate with associated gaskets and pieces of carbon cloth that comprise a flow-field. The plate, gaskets and flow-field comprise a “plate and gasket assembly” for use in an ionomer membrane fuel cell, fuel cell stack or battery.
Claims9
A bipolar plate and gasket assembly (a “PGA”), comprising:
- a graphite sheet;
- rigid gasket main body or bodies;
- compressible gasket material;
- and
- two or more pieces of carbon cloth and one or more gas flow channels positioned between or around the pieces of carbon cloth.
2 more elements
A gasket comprising:
- a rigid gasket main body or bodies;
- port channels in the gasket main body or bodies;
- and
- a compressible gas material, wherein comers of the gasket are clipped at an angle to permit access for tie-rods..
1 more element
A carbon cloth flow-field, or flow fields, which is adjacent to and in contact with the graphite portion of a bipolar plate, comprising pieces of carbon cloth and one or more gas flow channels positioned between or around the pieces of carbon cloth.
Dependencies are inferred from the claim text.