Electrochemical cell bipolar plate

Chemistry: electrical current producing apparatus – product – and – With pressure equalizing means for liquid immersion operation

Reexamination Certificate

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Details

C204S255000, C204S256000

Reexamination Certificate

active

10711712

ABSTRACT:
A bipolar plate for an electrochemical cell is disclosed. The bipolar plate includes a unitary plate having first and second inlet ports, first and second outlet ports, first flow channels, and second flow channels. A first inlet header channel at one end of the first flow channels is in fluid communication with the first inlet port, and a first outlet header channel at the other end of the first flow channels is in fluid communication with the first outlet port. A second inlet header channel at one end of the second flow channels is in fluid communication with the second inlet port, and a second outlet header channel at the other end of the second flow channels is in fluid communication with the second outlet port. Each of the header channels includes a support surface sufficient to support a membrane-electrode-assembly while providing a fluid flow channel from one end of the respective header channel to the other end.

REFERENCES:
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patent: 5776624 (1998-07-01), Neutzler
patent: 5976726 (1999-11-01), Wilkinson
patent: 6017649 (2000-01-01), Pondo
patent: 6037075 (2000-03-01), Critz
patent: 6099716 (2000-08-01), Molter
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patent: 6261710 (2001-07-01), Marianowski
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patent: 6503653 (2003-01-01), Rock
patent: 6706436 (2004-03-01), Molter
patent: 2003/0203260 (2003-10-01), Lee
patent: 1284512 (2003-02-01), None
patent: 2004-47451 (2004-02-01), None
Computer-generated English translation, from the Japanese Patent Office website, of JP-2004-047,451 (doc date Feb. 2004).
International Search Report PCT/US2005/035269 dated Sep. 28, 2005.

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