SOLID OXIDE TYPE FUEL BATTERY CELL, FUEL BATTERY MODULE AND FUEL BATTERY DEVICE

• Main Author: IWAMOTO TAKAYUKI
• Format: Patent
• Language: English; Japanese
• Published: 28.09.2017
• 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 cell capable of preventing a conductive support from being cracked, a fuel battery module and a fuel battery device.SOLUTION: A solid oxide type fuel battery cell 1 comprises: a conductive support 2 in which a fuel gas flow passage 7 is provided and which contains an iron group metal component; a fuel electrode layer 3 which is provided on at least one principal plane of the conductive support 2; a solid electrolyte layer 4 which is provided while covering the fuel electrode layer 3; and an air electrode layer 5 which is provided on the solid electrolyte layer 4 oppositely to the fuel electrode layer 3. An oxidation suppression layer 10 is provided in one end of the conductive support 2. The oxidation suppression layer 10 contains a silicate including at least one of second group elements on a periodic table as a main component. In a corner between an inner wall of the fuel gas flow passage 7 and an end face of the conductive support 2, the oxidation suppression layer 10 is thinner than in the other portion.SELECTED DRAWING: Figure 3 【課題】 導電性支持体のクラックの発生を抑制できる固体酸化物形燃料電池セルおよび燃料電池モジュールならびに燃料電池装置を提供する。【解決手段】 固体酸化物形燃料電池セル１は、内部に燃料ガス流路７が設けられており、鉄族金属成分を含む導電性支持体２と、導電性支持体２の少なくとも一方主面上に設けられた燃料極層３と、燃料極層３を覆って設けられた固体電解質層４と、固体電解質層４上で、燃料極層３と対向するように設けられた空気極層５と、を有しており、導電性支持体２の一端部に酸化抑制層１０が設けられており、酸化抑制層１０は、周期律表第２族元素のうち少なくとも１種を含むケイ酸塩を主成分として含有しており、燃料ガス流路７の内壁と導電性支持体２の端面との角部における酸化抑制層１０の厚みが、他の部分より薄い。【選択図】図３