Wednesday, November 6th, 13:00 – 15:00.


Dr. Tom-Patrick Heins1; Dr. Fridolin Röder2
1Battery LabFactory and Institute of Environmental and Sustainable Chemistry, Technische Universität Braunschweig
2Battery LabFactory and Institute of Energy and Process Systems Engineering, Technische Universität Braunschweig


The performance of a battery cell is determined by the processes within the cell. Modeling and simulation contribute significantly to understanding these processes. New methods and tools are also required to characterize the cells and determine their properties.
This seminar aims to convey fundamentals and applications of the electrochemical diagnosis and the modelling of lithium-ion batteries. In the first part a comprehensive overview on state-of-the-art electrochemical characterization techniques will be given as well as a profound introduction in one of the most promising tools of electrochemical diagnosis: electrochemical impedance spectroscopy. In the second part an introduction into the modelling of lithium-ion batteries will be given. Further aspects are the identification of relevant modelling parameter in electrochemical measurements and the application of model-based diagnosis in the production of lithium-ion electrodes.


  • Introduction to Electrochemical Impedance Spectroscopy (EIS)
  • Identification of processes in the SEI using the Distribution of Relaxation Times (DRT)
  • Basics of modeling and simulation of batteries

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