FUEL CELL SYSTEM COMPRISING HEAT GENERATING SOURCE FOR HEATING WATER ABSORBING MEMBER, AND ELECTRONIC DEVICE COMPRISING SAME

摘要

A fuel cell system (10) which comprises a fuel cell stack (11) comprising two or more unit cells (101) each containing a cathode electrode, an electrolyte membrane and an anode electrode in this order, and also an electronic device comprising the fuel cell system (10).  Fuel cell systems recently have become the focus of increased attention as small-sized power supplies for portable electronic devices and the like.  Fuel cell systems, however, have a problem in that when much water is generated and condensed at the cathode electrode, the water leaks out of the system, and even if a water-absorbing member for preventing leakage is arranged, leakage occurs if the water absorption ability of the water-absorbing member becomes saturated.  The above-described problem has been solved by providing the fuel cell system (10) with a water-absorbing member (14) arranged on the outer surface of the fuel cell stack in such a manner that the water-absorbing member (14) spatially communicates with the cathode electrode and absorbs the water generated at the cathode electrode, and a heat generating source (12) for heating the water-absorbing member.