Apparatus and method for determining deterioration of a fuel...

Details Apparatus and method for determining deterioration of a fuel... Apparatus and method for determining deterioration of a fuel...

2009-01-28

2011-11-08

Nasri, Javaid (Department: 2839)

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

active

08053131

ABSTRACT:
The present invention provides an apparatus and method for determining deterioration of a fuel cell, the method including measuring in real time fluoride ion concentration or pH value of outflow water from a fuel cell stack during operation in a fuel cell vehicle, calculating a fluoride emission rate from the measured value and, if the calculated fluoride emission rate is out of a predetermined normal range, determining deterioration of an electrolyte membrane of the fuel cell stack.

REFERENCES:
patent: 7041405 (2006-05-01), Skiba et al.
patent: 7422811 (2008-09-01), Yasumoto et al.
patent: 2005/0130001 (2005-06-01), Yasumoto et al.
patent: 2010/0141262 (2010-06-01), Watanabe et al.
patent: 2005-011619 (2005-01-01), None
patent: 2005-174922 (2005-06-01), None
patent: 2006-179333 (2006-07-01), None
patent: 10-2008-0033527 (2008-04-01), None

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