PURPOSE: To prevent the freezing of an electrolyte by heating a fuel cell main body and a storage battery in a container when the temperature in the storage container becomes a preset value or less.
CONSTITUTION: A fuel cell main body 1 and a storage battery 8 are installed in a storage container 3, and the output current of the main body 1 is fed to a load 10 and a heating unit 5 made of an electric heater while charging the storage battery 8. A temperature detector 6 of the inside space 4 is provided in the container 3, its detected signal is fed to a control unit 7 and compared with a preset value of -5°C as the temperature that an anolyte is not frozen. If the detected value is the preset value or less, a switching unit 9 is turned on to energize the heating unit 5, and the main body 1, an anolyte tank 2, accessories and wiring, and the storage battery 8 are heated. When the temperature in the container is increased and the detected value exceeds a preset value of +5°C, the energization of the heating unit 5 is cut off by the switching unit 9.
SUMIYA YOSHIO
TAKAHASHI SANKICHI
IKEMOTO NORIO
