| 摘要 |
There is provided a fuel cell system and operation methods therefor capable of ensuring transfer to normal operation while maintaining convenience. A fuel cell system 100 includes: a cell stack 102; a secondary battery 126; a controller 142 including a CPU 158; a main switch 148; and a stop button 30b. After the main switch 148 is turned OFF, if there is no power generation stopping command from the stop button 30b, the CPU 158 stops power generation in the cell stack 102 after continuing power generation in the cell stack 102 till a charge rate of the secondary battery 126 becomes not smaller than a first threshold value. If the charge rate is not smaller than a second threshold value and is smaller than the first threshold value, generation in the cell stack 102 is stopped in response to the power generation stopping command from the stop button 30b. If the charge rate is lower than the second threshold value, power generation in the cell stack 102 is continued to charge the secondary battery 126 until the charge rate becomes not lower than the second threshold value even if a normal power generation stopping command is given from the stop button 30b. |
