Unit cell for solid oxide fuel cell and related method

• Main Authors: SHIBATA ITARU, SUGIMOTO HIROMI, YAMANAKA MITSUGU, IBUKA SHIGEO
• Format: Patent
• Language: English
• Published: 25.03.2004
• Edition: 7
• Subjects: BASIC ELECTRIC ELEMENTS; CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION ORPROCESSING OF GOODS; ELECTRICITY; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE

A unit cell for a solid oxide fuel cell is provided with a substrate including a portion having a first porosity, a battery element formed on the substrate and having an electrode layer and an electrolyte layer, and a low porosity layer provided in at least one of the substrate and the battery element to have a second porosity lower than the first porosity. Sizes of a plurality of pores of the low porosity layer falls in a value equal to or less than 10 mum to laminate a part of the battery element on the low porosity layer.