Development of Coating to Mitigate Chromium Contamination from Bipolar Plates in a Metal-Supported Solide Oxide Fuel (MS-SOFC)

Abstract

Metal-Supported Solid Oxide Fuel Cells (MS-SOFCs) are electrochemical devices applicable to sustainable power generation. The main reason for efficiency loss in these cells is chromium contamination, leading to degradation and reduced lifetime. In order to improve cell durability and minimize the need for frequent replacement of its components, an extensive literature review was carried out to select the most suitable materials for the fabrication of bipolar plates and their coatings. Selection criteria included cost, ease of manufacturing, thermal expansion coefficient (TEC), and electrical conductivity, ensuring compatibility with the cell stack materials. Ferritic stainless steels were selected for the plates, and oxides and spinels of specific metals for coatings. These choices will directly impact the commercial and environmental viability of this technology.