Fuel cell and method of purging a fuel cell

Details Fuel cell and method of purging a fuel cell Fuel cell and method of purging a fuel cell

1983-11-16

1985-08-27

Skapars, Anthony

Chemistry: electrical current producing apparatus, product, and

With pressure equalizing means for liquid immersion operation

429 26, 429 34, 429 40, H01M 822

Patent

active

045378398

ABSTRACT:
A fuel cell may be purged with inert gas and/or pre-heated and/or maintained at an elevated temperature by combusting the hydrogen fuel with air and passing the combustion product gases either through the cell or through a heat exchanger for imparting heat either to the electrolyte or to the fuel gases. Preferably the combustor includes a catalyst. The hydrogen can either be taken directly from the fuel supply or the "waste" hydrogen periodically bled from the cell can be used. If the product gases are to be passed into the cell, the stoichiometry of the combustion should be controlled so that hydrogen is absent.

REFERENCES:
patent: 4001041 (1977-01-01), Menard
patent: 4041210 (1977-08-01), Van Dine
patent: 4128700 (1978-12-01), Sederquist

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