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.

We offer the following electrolyte substrates
  • 3YSZ
  • YScSZ
  • 6Sc1CeSZ
  • 8YSZ
  • 10Sc1CeSZ
Dimensions according to customer

Our standard electrolyte sizes are 50x50x0.15 mm³ and 100x100x0.15 mm³. In addition, custom-built round or rectangular geometries can be produced.

We can offer 3YSZ with a minimal thickness of 40 µm due to its high mechanical stability und flexibility.


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We take company holidays from 23.12.2019 - 06.01.2020. 

In the period from 23 December 2019 up to and including 6 January 2020 we take company holidays.
From 7 January 2020 you can reach us again at the usual times. 

The entire KERAFOL-Team wishes you and your family a pleasant Advent season,
Merry Christmas and a healthy, successful year 2020.


Do you have any questions, requests or suggestions? How can we help you?

Dipl.-Ing. Franz-Martin Fuchs
Head of department SOFC

Phone: +49 (0)9645 88 430
Fax: +49 (0)9645 88 492
E-Mail: sofc(at)kerafol.com

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