“…Today, economically competitive SOFC systems already exist, apparently ready for commercialization, but the widespread penetration of the technology into the market requires constant innovation of materials and manufacturing processes to increase the system service life and reduce the costs [9]. Among the numerous types of FC, such as alkaline FC [10,11], FCs with proton-exchange membrane [12][13][14], FCs based on carbon compounds [15,16], solid oxide fuel cells (SOFCs) based on oxygen-conducting solid electrolytes, which have a high efficiency (up to 60%) and can use not only pure hydrogen but also various hydrocarbons as a fuel, should be highlighted. The main structural components of these SOFCs are porous electrodes (anode and cathode) and a solid gas-tight electrolyte (ZrO 2 : Y 2 O 3 (YSZ)) located between them [1].…”