NOVELTY - Fuel cell (10) includes electrolyte electrode assembly (26) having anode (24), cathode (22), and electrolyte (20); and separators (28). An annular member (90) and a ring foil (92) are provided between the separators. The annular member has opening (96) for discharging first exhaust gas which has been consumed at one electrode to outside of electrolyte electrode assembly. The ring foil prevents first exhaust gas from entering the other electrode, and allows second exhaust gas which has been consumed at the other electrode to be discharged to the outside of electrolyte electrode assembly.    USE - As solid oxide fuel cell used in stationary and mobile applications, particularly vehicle.    ADVANTAGE - Fuel gas and oxygen-containing gas which have been consumed in the reaction do not contact each other in an area near an electrolyte electrode assembly. The power generation efficiency and the durability are reliably prevented from being degraded due to combustion of the exhaust gas.    DETAILED DESCRIPTION - The fuel cell includes electrolyte electrode assembly having anode, cathode, and electrolyte; and separators. An annular member is provided between the separators around an outer circumferential portion of the electrolyte electrode assembly, and has an opening for discharging a first exhaust gas which has been consumed at one electrode to outside of the electrolyte electrode assembly. A ring foil is provided adjacent to another electrode, and extends from a position between an outer end of the electrolyte electrode assembly and the separator to a position between the annular member and the separator. The ring foil prevents the first exhaust gas from entering the other electrode, and allows a second exhaust gas which has been consumed at the other electrode to be discharged to the outside of the electrolyte electrode assembly.    DESCRIPTION OF DRAWING(S) - The figure shows a cross-sectional view schematically showing operation of the fuel cell.    Fuel cell (10)    Electrolyte (20)    Cathode (22)    Anode (24)    Electrolyte electrode assembly (26)    Separators (28)    Annular member (90)    Ring foil (92)    Opening (96)