Patent ID: 8142937
Filing Date: 2012-03-27
Classification: H01M,Y02E,Y02T

Abstract:
1. A fuel cell system comprising: a fuel cell including a cathode; a detector arranged to detect an electrical variable regarding power generation in the fuel cell; an instruction unit arranged to issue a power generation stop command for the fuel cell; a cut off unit arranged to cut off a supply of gas containing oxidizer to the cathode after an issuance of the power generation stop command by the instruction unit; and a determination unit programmed to determine a presence or an absence of an abnormality in the cut off unit based on a result of a comparison between a detection result from the detector and a first threshold value after the issuance of the power generation stop command; wherein the determination unit determines that there is no abnormality in the cut off unit if the detection result from the detector is smaller than the first threshold value, and determines that there is an abnormality in the cut off unit if the detection result from the detector is not smaller than the first threshold value.