Method for detecting abnormality in fuel cell

Details Method for detecting abnormality in fuel cell Method for detecting abnormality in fuel cell

2002-07-25

2008-11-04

Ryan, Patrick (Department: 1795)

Chemistry: electrical current producing apparatus, product, and

With pressure equalizing means for liquid immersion operation

C429S010000

Reexamination Certificate

active

07445861

ABSTRACT:
The invention detects quickly and with high precision abnormalities in fuel cells. In a method of detecting abnormalities in a fuel cell1comprising a plurality of unit cells that generate power by supplying hydrogen gas to an anode and supplying air to a cathode of each unit cell, the abnormality in the fuel cell1is detected based on the speed of the decrease in the cell voltages after stopping the fuel cell, i.e., after stopping the supply of the reacting gases to the fuel cell.

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IPDL JPO Machine Translation for JP 2002-151125 A (publication date of May 4, 2002).
Japanese Office Action for Application No. 2001-228556, dated Jun. 17, 2008.

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