Solid oxide fuel cells (SOFC) with oxide electrolyte are to one of variants of development of alternative energy. The use of SOFC is conditioned by the followings advantages: by a high output-input ratio and absence of contamination of environment. To failings it is necessary to take the high cost of energy which is conditioned by the high cost of materials and complication of construction. Work on the increase of operating materials characteristics for SOFC, simplification of producing technology of fuel cell elements and whole construction, decreasing the cost and increase of reliability is basic tasks which are decided by the whole world.
SOFC is the three-layered element, which consists of two porous ceramic electrodes and dense ceramic electrolyte which divides electrodes. Presently the most developed material for making of SOFC is zirconium dioxide. The use of domestic raw material for making of SOFC elements of in Ukraine is another advantage.
Increase of ionic conductivity of electrolyte and his mechanical properties, increase of catalytic activity of electrodes, is a basic task for making of materials for SOFC.
During implementation of five stages of project were considered and decided the followings questions: increase of ionic conductivity of electrolyte material by the use of nanopowders and additional alloying of material, increase of mechanical properties of material of electrolyte and anode by the use of nanopowders, decrease the sintering temperature, making of dense electrolyte and porous anode by the co-sintering method.
During project work the testing module for measuring volt-ampere characteristics of fuel element at temperatures to 1000оС was making. The study of process of reoxidation of nickel in the layer of anode depending on the density of composite material, from a temperature and time of renewal, stream of hydrogen and investigation volt ampere characteristics of planar fuel element were conducted.
Keywords: Zirconia, electrolyte, anode, cathode, nanopowders, additional doping, density, impedance, strength, recovery of nickel