Patent ID: 8980495
Filing Date: 2015-03-17
Classification: H01M,Y02E

Abstract:
1. A fuel cell system comprising: a fuel cell stack formed by stacking a plurality of fuel cells, said fuel cells each being formed by stacking an electrolyte electrode assembly and a separator, said electrolyte electrode assembly including an anode, a cathode, and an electrolyte interposed between said anode and said cathode; a heat exchanger for heating an oxygen-containing gas using a heat medium before the oxygen-containing gas is supplied to said fuel cell; a reformer for reforming a raw fuel chiefly containing hydrocarbon to produce a fuel gas to be supplied to said fuel cell stack; a combustor for burning the raw fuel to produce a combustion gas, wherein the combustor includes a combustor cover, and a fluid unit including an evaporator for evaporating water to produce a mixed fuel of the raw fuel and water vapor and at least said heat exchanger and said reformer are provided at one end of said fuel cell stack in the stacking direction, wherein said heat exchanger is separate and distinct from said evaporator and said heat exchanger is positioned relative thereto so as to surround the evaporator, wherein said combustor, said heat exchanger, and said reformer and evaporator are arranged concentrically such that: said fuel cell system further comprising: