Fuel cell stack assembly with edge seal
First Claim
Patent Images
1. A proton exchange membrane fuel stack cell assembly, comprising:
- a plurality of fuel cells stacked upon one another with a peripheral seal disposed between each of said fuel cells;
each of said plurality of fuel cells including a separator plate;
a membrane electrode assembly with a first side and a second side;
a separator plate bonded to said membrane electrode assembly with bonding material on said first side;
a formed seal located on a peripheral portion of said separator plate on said second side.
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Abstract
A stack (200) of fuel cells (202) sealed together with a formed elastomer seal (206) is disclosed. Each of the individual cell components are bonded to one another with thermoplastic film (204). As a result, only one formed elastomer seal (206) is required for each fuel cell (202) within a stack (200) to provide a modular fuel cell stack assembly (200).
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Citations
32 Claims
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1. A proton exchange membrane fuel stack cell assembly, comprising:
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a plurality of fuel cells stacked upon one another with a peripheral seal disposed between each of said fuel cells;
each of said plurality of fuel cells including a separator plate;
a membrane electrode assembly with a first side and a second side;
a separator plate bonded to said membrane electrode assembly with bonding material on said first side;
a formed seal located on a peripheral portion of said separator plate on said second side.- View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A fuel cell stack assembly, comprising:
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a plurality of fuel cells stacked upon one another with a peripheral seal disposed between each of said fuel cells;
each of said plurality of fuel cells each including a separator plate;
a membrane electrode assembly with a first side and a second side;
a membrane electrode bonded to said separator plate with bonding material on said first side;
a formed seal located on a peripheral portion of said membrane electrode assembly not bonded to said separator plate.- View Dependent Claims (15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26)
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27. A fuel cell assembly, comprising:
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a membrane electrode assembly having a first side and a second side;
a separator plate bonded with bonding material to said first side of said membrane electrode assembly; and
a formed elastomeric seal positioned at the periphery of and on a side of said membrane electrode assembly plate not bonded to said separator plate. - View Dependent Claims (28, 29)
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30. A fuel cell assembly, comprising:
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a membrane electrode assembly having a first side and a second side;
a separator plate bonded to said first side of said membrane electrode assembly;
a formed elastomeric seal positioned at the periphery of and on a side of said separator plate not bonded to said membrane electrode assembly. - View Dependent Claims (31, 32)
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Specification