EIS-Tutorial
Electrochemical Impedance Spectroscopy

0.5 ECTS credits; Level: advanced;
Tuesday, 1 July 2025, 9:30 - 17:00; Tutorial Language is English
On-site in Lucerne Switzerland and/or On-line in the Virtual Room*

by:   Dr. André Weber, Karlsruhe Institute of Technology, KIT, Germany
          Dr. Dino Klotz, previously I2CNER, Kyushu University, Fukuoka, Japan

To book the EIS-Tutorial go to the On-line Registration. 
If registration is not open, or you have questions about (early) registration
for this tutorial or any other EFCF events, please email forum@efcf.com.

*Remark:
Sufficient number of virtual participants required, however
the EIS tutorial is also available as an On-Demand Tutorial.

See here the Added Values of the EIS-Tutorial.

View the Preliminary Content 

EIS Tutorial Draft Schedule:

09:30 Registration & Get-Together in the virtual rooms 
10:00 Welcome & Introduction (EFCF)
10:15 Lecture 1: Fundamentals of Electrochemical Impedance Spectroscopy
11.00 Lecture 2: Evaluation of Impedance Spectra
                                      Kramers-Kronig Test, DRT-Analysis & CNLS Fit
11:45 Coffee break
12.00 Lecture 3: Applications I - Analysis of Materials & Interfaces
12:45 Lunch Break
14:00 Lecture 4: Applications II - Analysis Single Cells & Stacks
14:45 Lecture 5: Impedance Modelling & Simulation
15.30 Coffee break
15:45 Lecture 6: "EIS challenge" - Summary
17:00 End of EIS Tutorial, Opportunity to Visit the Exhibition

The EIS Tutorial will cover the following topics:

Fundamentals of Electrochemical Impedance Spectroscopy

  • impedance measurements 
  • selection of appropriate testing parameters
  • impedance analyzers
  • impact of wiring and cell setup
  • correction and calibration

Evaluation of Impedance Spectra – Kramers-Kronig Test, DRT-Analysis & CNLS-Fit

  • validating impedance data quality
  • Distribution of Relaxation Times (DRT)
  • CNLS-fit

Applications I - Analysis of Materials and Interfaces

  • electrolyte conductivity – impact of humidity and temperature
  • single electrode measurements – ideal counter electrode, symmetrical cell or reference electrode
  • high resistance model electrodes
  • high performance electrodes
  • impedance of further interfaces

Applications II - Analysis Single Cells and Stacks

  • test bench design
  • humidity and liquid water
  • single cells, repeat units and stacks

Impedance Modeling and Simulation

  • electrochemical processes and their operating parameter dependencies
  • deconvolution of electrode processes
  • from AC-impedance to DC-performance

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