Half cell of solid oxide fuel cell, fuel cell and their manufacturing methods

• Main Authors: MING LI, YOUSONG JIANG, BIN XIE, LEI ZHANG, WEIJIE JI
• Format: Patent
• Language: English
• Published: 29.07.2015
• 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

The invention relates to a half cell of solid oxide fuel cell, a fuel cell and their manufacturing methods. The half cell orderly comprises an electrolyte layer, an optional functional layer and a supporting layer. The outer surface of the electrolyte layer is flat in a micrometer level. Preferably, the outer surface has a submicron or nanometer microstructure, or has a submicron or nanometer raised, undulating or branched structure. Preferably, the electrolyte layer is formed on the surface of a carrier tape by a spray-drying method so that an electrolyte green compact utilizes the carrier tape as a template and copies microscopic morphology of the surface of the carrier tape. The surface of the carrier tape is flat in a micrometer level. Preferably, through processing and modification, the surface of the carrier tape forms a submicron or nanometer microstructure so that the surface of the electrolyte layer contacting with the carrier tape forms a submicron or nanometer microstructure after sintering.