SOLID OXIDE TYPE FUEL BATTERY STACK, SOLID OXIDE TYPE FUEL BATTERY MODULE AND SOLID OXIDE TYPE FUEL BATTERY SYSTEM

• Main Authors: UKAI KENJI, ICHIKAWA MASAHIRO, OKUNO TOMOKO
• Format: Patent
• Language: English; Japanese
• Published: 09.02.2017
• Subjects: BASIC ELECTRIC ELEMENTS; ELECTRICITY; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY

PROBLEM TO BE SOLVED: To enhance adhesion between a tubular solid oxide type fuel battery tubular cell and a connection member for electrically connecting solid oxide type fuel battery tubular cells in a solid oxide type fuel battery stack.SOLUTION: In a solid oxide type fuel battery stack 30, a connecting member 32 for connecting a plurality of oxide solid type fuel tubular cells 31 formed in a tubular shape includes a first contact portion 32a which contacts the outer wall surface of a fuel electrode layer exposed portion 31a1, a second contact portion 32b which contacts the outer wall surface of an air electrode layer 31c, and a connecting portion 32c for integrally connecting the first contact portion 32a and the second contact portion 32b, is molded by processing a raw material having electrical conductivity by using a mold, and has flexibility after the molding. After the molding, the shape of the first contact portion 32a is capable of keeping a first predetermined shape that is in close contact with the outer wall surface of the fuel electrode layer exposed portion 31a1, and the second contact portion 32b is capable of keeping a second predetermined shape that is in close contact with the outer wall surface of the air electrode layer 31c.SELECTED DRAWING: Figure 2 【課題】固体酸化物形燃料電池スタックにおいて、筒状の固体酸化物形燃料電池筒状セルと、固体酸化物形燃料電池筒状セル間を電気的に接続する接続部材との密着性を向上させることを目的とする。【解決手段】固体酸化物形燃料電池スタック３０において、筒状に形成された複数の固体酸化物形燃料電池筒状セル３１間を接続する接続部材３２は、燃料極層露出部３１ａ１の外壁面に接触する第一接触部３２ａと、空気極層３１ｃの外壁面に接触する第二接触部３２ｂと、第一接触部３２ａと第二接触部３２ｂとを一体的に連結する連結部３２ｃと、を備え、かつ、導電性を有する原材料を、型を使用して加工することにより成型をされ、成型後、可撓性を有し、第一接触部３２ａの形状は、成型後、燃料極層露出部３１ａ１の外壁面に密着する第一所定形状を保持可能であるとともに、第二接触部３２ｂの形状は空気極層３１ｃの外壁面に密着する第二所定形状を保持可能である。【選択図】 図２