Electrolyte substrates

Kerafol^® offers both electrolyte substrates and electrolyte supported cells. In the electrolyte supported cell the electrolyte is the bearing component. The electrolyte separates the anode and cathode spatially from each other and usually consists of zirconia. At operation temperatures between 750 °C to 950 °C zirconia is a good oxygen ion conductor when doped with various metal oxides. Important factors for producing electrolyte tape and the choice of the doping metal oxide are the oxygen ion conductivity, the mechanical stability, the long term stability, gas tightness, and planarity. We offer partially stabilized variations with high mechanical stability, fully stabilized zirconia with higher ionic conductivity, and a mixed version, which combines both properties.

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