Chemistry: electrical current producing apparatus – product – and – With pressure equalizing means for liquid immersion operation
Reexamination Certificate
2008-10-24
2010-10-12
Michener, Jennifer (Department: 1795)
Chemistry: electrical current producing apparatus, product, and
With pressure equalizing means for liquid immersion operation
C429S006000
Reexamination Certificate
active
07811692
ABSTRACT:
An improved fuel cell is described. The invention addresses the problem of mechanical failure in thin electrolytes. One embodiment varies the thickness of the electrolyte and positions at least either the anode or cathode in the recessed region to provide a short travel distance for ions traveling from the anode to the cathode or from the cathode to the anode. A second embodiment uses a uniquely shaped manifold cover to allow close positioning of the anode to the cathode. Using the described structures results in a substantial improvement in fuel cell reliability and performance.
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Haile, Sossina M., et al: Solid Acids As Fuel Cell Electrolytes, Apr. 19, 2001 Macmillan Magazines LTD, Nature, vol. 410, pp. 910-913, www.nature.com.
Hibino, et al., Journal of the Electrochemical Society, 149 (2), 2002, A195-1200 (Abstract) .
Apte Raj B.
Duff David G.
Lu Jeng Ping
Salleo Alberto
Van de Walle Christian G.
Bever Patrick T.
Bever Hoffman & Harms LLP
Michener Jennifer
Palo Alto Research Center Incorporated
Wills Monique
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