Patent ID: 7914936

Claim:
A fuel cell system comprising: a fuel cell including a power generation portion provided with a fuel electrode and an oxidizer electrode, for performing power generation by a fuel supplied from a fuel tank; a fuel supply control mechanism, which is disposed between the fuel tank and the fuel cell, and which is capable of interrupting a supply of the fuel; and a thermistor provided to a circuit connecting the fuel supply control mechanism to the fuel cell, for changing a resistance value according to at least one of a temperature of the power generation of the fuel cell and a temperature of an electronic device connected to the fuel cell to be supplied with electric power, wherein the fuel supply control mechanism is operated by a change in the resistance value of the thermistor so that the supply of the fuel is interrupted, wherein the power generation portion of the fuel cell comprises a fuel cell stack including a plurality of fuel cell units, wherein the fuel supply control mechanism is supplied with an output from at least one of the plurality of fuel cell units of the fuel cell stack, and wherein fuel cell units for supplying the output to the fuel supply control mechanism have higher heat and mechanical resistances than other fuel cell units of the fuel cell stack.