Redox Stable Electrode Material of Symmetrical Solid Oxide Fuel Cells

Abstract

Solid oxide fuel cells (SOFCs) technologies are considered the most efficient and environmentally-friendly option for both stationary and distributed power generation due to their advantages of low pollution, low noise and strong building blocks. Despite the potential, widespread adoption of SOFC technology has not yet been achieved. The main reason is that the high cost of manufacturing and maintenance and the insufficient operating life make SOFC technology less competitive economically. More and more people begin to pay attention to symmetrical solid oxide fuel cells (SSOFCs) because SSOFCs have many potential advantages, such as improving the thermal mechanical compatibility between electrolyte and electrode, reducing manufacturing costs, and improving the ability to resist coking and sulfur poisoning. This article reviews the development of SSOFCs redox stable electrodes in recent years, summarizes the current research hotspots, and looks forward to the future development of redox stable electrode materials.