To provide a fuel cell system which operates effectively and stably and improves durability of a hydrogen separation film layer by preventing deterioration of the hydrogen separation film layer in the fuel cell, and also to provide its power generation system.
The fuel cell system 1 comprises a reformer 2, a fuel cell 3, and a control device. The fuel cell 3 has an electrolyte body 31 made by laminating a hydrogen separation metal layer 311 and a proton conductor layer 312, an anode passage 32, a cathode passage 33, and a coolant passage 34. The control device, by operating a cathode gas controller 6, increases the pressure in the cathode passage 33 when the temperature T of the electrolyte body 31 exceeds the upper limit Tmax of the permissible operating temperature range Tp, and decreases the pressure in the cathode passage 33 when the temperature T of the electrolyte body 31 becomes below the lower limit Tmin of the permissible operating temperature range Tp of the electrolyte body 31.
COPYRIGHT: (C)2005,JPO&NCIPI
Takashi Shimanzu
Hiroyuki Mitsui
Atsushi Ogino
Satoshi Aoyama
Satoshi Shiokawa
TOYOTA JIDOSHA KABUSHIKI KAISHA
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Tamiwa Iwakura