Chemistry: electrical current producing apparatus – product – and – Fuel cell – subcombination thereof – or method of making or... – Process or means for control of operation
Reexamination Certificate
2011-07-05
2011-07-05
Cantelmo, Gregg (Department: 1726)
Chemistry: electrical current producing apparatus, product, and
Fuel cell, subcombination thereof, or method of making or...
Process or means for control of operation
C429S472000
Reexamination Certificate
active
07972739
ABSTRACT:
A method for inerting and protecting the anodes of fuel cells, especially high-temperature fuel cells, and a fuel cell system, in which, during a shutdown, when the supply of fuel gas to the anodes is interrupted, during emergency shutdown or standby operation, water vapor is supplied to the anodes, and an external voltage is applied to the fuel cells to produce a reducing atmosphere at the anodes by electrolysis. This makes it possible to inert the anodes of the fuel cells without having to maintain a supply of a flushing or protective gas expressly for this purpose.
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EG&G Services, Fuel Cell Handbook, Oct. 2000, US Department of Energy, Fifth Edition, p. 2-2.
Bednarz Marc
Woski Michael
Cantelmo Gregg
Lucas & Mercanti LLP
MTU CFC Solutions GmbH
Stoffel Klaus P.
Wang Eugenia
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