Energy high-temperature fuel cells solid

If the materials and corrosion problems are solved high temperature fuel cells could be used in the framework of a hydrogen economy for the conversion of hydrogen into electric energy. Cells with molten salt electrolytes immobilized in a ceramic matrix could be applied at 850-950 K and with solid oxygen ion conducting electrolytes at 1200-1300 K. 

Singh, P., Ruka, R.J., and George, R.A Direct utilization of hydrocarbon fuels in high temperature solid oxide fuel cells, In Proc 24 1 intersociety energy conversion engineering conference. Pub. Institute of Electrical and Electronics Engineers, New York, 1989, pp 1553 1563. 

A fuel cell is a form of battery. An ordinary battery consists of internal reactants that are converted into electrical energy, whereas in a fuel cell the chemical reactants are supplied from an external source. There are several designs of fuel cell, one of which is the solid oxide fuel cell (SOFC). These employ calcia- or yttria-stabilized zirco-nia. The cells operate at temperatures of about 900°C, this high temperature being needed to maintain a high enough oxygen transport for useful cell output. 

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