Chemistry: electrical current producing apparatus – product – and – With pressure equalizing means for liquid immersion operation
Reexamination Certificate
2006-03-07
2006-03-07
Ryan, Patrick Joseph (Department: 1745)
Chemistry: electrical current producing apparatus, product, and
With pressure equalizing means for liquid immersion operation
C429S047000
Reexamination Certificate
active
07008718
ABSTRACT:
A fuel cell assembly is provided that includes a plurality of cells. Each cell includes an electrolyte layer (2), a pair of gas diffusion electrode layers (3, 4) interposing the electrolyte layer between them, and a pair of flow distribution plates (5) for defining passages (10, 11) for fuel and oxidizer gases that contact the gas diffusion electrode layers. The electrolyte layer (2) includes a frame (21) with a grid (21a), which has a number of through holes (21b), and electrolyte (22) retained in each of the through holes. Because the electrolyte is not required to be interposed between structural members such as the gas diffusion electrode layers and flow distribution plates, the electrolyte is allowed to expand into the passages for the fuel and oxidizer gases so that no undesirable stresses are produced, and the structural members would not be affected by the expansion of the electrolyte.
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Isogai Yuji
Kubota Tadahiro
Kuriyama Nariaki
Lee Sang-Joon John
Sasahara Jun
Honda Giken Kogyo Kabushiki Kaisha
Lumen Intellectual Property Services Inc.
Parsons Thomas H.
Ryan Patrick Joseph
The Board of Trustees of the Lealand Stanford Junior University
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