Chemistry: electrical current producing apparatus – product – and – With pressure equalizing means for liquid immersion operation
Patent
1998-10-30
2000-10-03
Chaney, Carol
Chemistry: electrical current producing apparatus, product, and
With pressure equalizing means for liquid immersion operation
429 18, 429 35, 429 38, 429 39, H01M 810, H01M 802, H01M 824
Patent
active
06127058&
ABSTRACT:
A planar fuel cell (20) is provided, including a membrane electrode assembly (23) sandwiched between two current collector assemblies (21, 22). The membrane electrode assembly is a single sheet of a polymer electrolyte membrane with an array of anodes (27) on one side and an array of corresponding cathodes (28) on the other side. The current collectors (25) can be supported by a plastic frame (24), and they have an interconnect tab (26) that provides an electrical pathway to the exterior of the membrane electrode assembly. The interconnect tab is situated to provide electron transfer between the anodes and the cathodes such that the interconnect tab does not traverse the thickness of the polymer electrolyte membrane. When the planar fuel cell is assembled, the interconnect tab is sealed to prevent leaking of fuel or oxidant gases. Fuel is distributed (36) to only one side of the membrane electrode assembly and oxidant is distributed (36) only to the other side.
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Adlhart, O.J., Rohonyi P., Modroukas D., and Driller, J., "A small Portable Proton Exchange Membrane Fuel Cell and Hydrogen Generator for Medical Applications," ASAIO Journal 1997 (No Month).
Kelley Ronald J.
Landreth Bobby Dean
Muthuswamy Sivakumar
Pennisi Robert W.
Pratt Steven D.
Chaney Carol
Crepeau Jonathan
Dorinski Dale W.
Motorola Inc.
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