| 摘要 |
A fuel cell system includes a power generator configured to generate electricity through supply of an oxidant gas and a fuel composed of a compound containing a carbon atom; a concentration detector configured to detect a concentration of carbon dioxide (CO2); and a controller configured to operate so as to allow the power generator to generate electricity when the concentration of carbon dioxide detected by the concentration detector is lower than a predetermined threshold concentration and so as to stop a generating operation of the power generator when the concentration of carbon dioxide detected is higher than or equal to the threshold concentration.
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