Electrolyte Supported Cells (ESC)

The electrolyte supported cells consist of an electrolyte tile which separates anode and cathode spatially and conducts oxygen ions at operation temperatures in the range of 750 °C to 950 °C. At the cathode oxygen molecules are taken from the gas phase and form oxygen ions in an electrochemical reaction with electrons from the cathode. The formed oxygen ions move through the electrolyte to the anode, where they react with hydrogen to water by releasing the electrons to the anode. This way, excess charges are generated at the cathode and anode, which can be utilized as electrical current. To achieve a higher voltage, several cells are connected in series to form a stack, which is the current providing unit of a fuel cell system.

Our electrolyte supported cells have a high planarity and are optimized for the usage in SOFC-stacks. Highly efficient electrodes with low polarization resistances have been developed. The robustness of the cells has been proven by several long term tests, by thermo cycles, and by oxidation/reduction tests. In our R&D department the cells are continuously improved regarding power density and robustness. We also developed the cell type KeraCell III, which is based on a LSCF oxygen electrode. This cell type provides a high power density both as fuel cell and electrolyzer cell.  

  • Oxygen electrode: LSM; LSCF
  • Hydrogen electrode: NiO / YSZ; NiO / GDC
  • Electrolyte substrates: 10Sc1CeSZ; 8YSZ; 6Sc1CeSZ; YScSZ or 3YSZ
Dimensions according to customer

Our standard cell sizes are 50x50x0.15 mm³ and 100x100x0.15 mm³. In addition, custom-built round or rectangular geometries can be produced. Depending on the geometry, we also offer symmetrical cells and half cells.

Subscribe to the SOFC-Newsletter and become an insider!

You Get:

  • News and trends around SOFC
  • Information to new products
  • Invitations to exhibitions and lectures

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

Download vCard

Quick Contact

I ask for:

By setting the hook you agree, that the data you enter will be collected and stored electronically. You can revoke this consent at any time with a message to us. For more information, see the privacy statement.