Solid oxide fuels cells facts and figures provides clear and accurate data for a selection of sofc topics from the specific details of ni cermet anodes chemical expansion in materials and the measuring and modelling of mechanical stresses to the broader scope of the history and present design of cells to sofc systems and the future of sofc. Solid oxide fuels cells facts and figures provides clear and accurate data for a selection of sofc topics from the specific details of ni cermet anodes chemical expansion in materials and the measuring and modelling of mechanical stresses to the broader scope of the history and present design of cells to sofc systems and the future of sofc. Although fuel cells have been known for over 150 years research on solid oxide fuel cells sofcs based on an oxide ion conducting electrolyte only accelerated in the last 30 years this chapter. A solid oxide fuel cell or sofc is an electrochemical conversion device that produces electricity directly from oxidizing a fuel fuel cells are characterized by their electrolyte material the sofc has a solid oxide or ceramic electrolyte advantages of this class of fuel cells include high combined heat and power efficiency long term stability fuel flexibility low emissions and . Solid oxide fuels cells facts and figures past present and future perspectives for sofc technologies subhash c singhal auth john ts irvine paul connor eds solid oxide fuel cells sofcs operate at high temperatures allowing more fuel flexibility and also useful heat output and so increase total efficiency but does give some