SOLID OXIDE TYPE FUEL BATTERY

• Main Authors: OGURA YUSUKE, MASUDA SOICHIRO, SHIMANO JUN
• Format: Patent
• Language: English; Japanese
• Published: 27.10.2016
• Subjects: BASIC ELECTRIC ELEMENTS; ELECTRICITY; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY

PROBLEM TO BE SOLVED: To provide a solid oxide type fuel battery capable of suppressing leakage of fuel gas supplied to a fuel electrode to the outside and mixing of the fuel gas with air supplied to an air electrode.SOLUTION: A solid oxide fuel battery 1 includes a unit battery 30 having an air electrode 32 and a fuel electrode 33 provided on both the surfaces of solid oxide electrolyte 31, and a fuel electrode-side separator 20 disposed outside the fuel electrode 33 of the unit cell 30. A internal seal member 62 for blocking flow of gas is provided between a surface of the unit cell 30 on a side at which the fuel electrode 33 is provided, and the fuel electrode-side separator 20. A space which is surrounded by the unit cell 30, the fuel electrode side separator 20 and the inner sealing member 62 and partitioned from the outside is set as a fuel gas flow passage portion F through which fuel gas flows.SELECTED DRAWING: Figure 1 【課題】燃料極に供給する燃料ガスが外部へ漏出すること、および空気極に供給する空気と混合されることを抑制できる固体酸化物型燃料電池を提供すること。【解決手段】固体酸化物形燃料電池１は、固体酸化物電解質３１の両面に空気極３２と燃料極３３を設けた単セル３０と、単セル３０の燃料極３３の外側に配された燃料極側セパレータ２０とを有する。単セル３０の燃料極３３が設けられた側の面と、燃料極側セパレータ２０との間に、気体の流通を遮断する内部シール材６２が設けられ、単セル３０と燃料極側セパレータ２０と内部シール材６２とに囲まれて外部と区画された空間が、燃料ガスが流通される燃料ガス流通部Ｆとされる。【選択図】図１