The invention presented relates to a regeneration method () for regenerating a contaminated fuel cell stack (). The regeneration method () comprises:

The fuel cell with a reformer according to the present invention comprises a solid electrolytic layer 56 of proton conductor or oxygen ion conductor disposed among a reforming layer 52 containing a catalyst 50 for reforming a hydrogen-content substance, a ...

As the fuel cell apparatus of the present invention comprises a fuel cell for generating electricity by supplying a fuel pole with fuel gas and an oxidant pole with air, a washing liquid tank, disposed in a supply passage of the air, for reserving washing ...