Chemical processes, their equivalent circuits and common pitfalls

Further elaboration on the equivalent circuits for EIS measurements and how they are linked to the chemical processes. Johan also explained some of the pitfalls of using equivalent circuits to model the impedance response, as it is always possible to construct an equivalent circuit with the right output characteristics, but that might not be a physically correct representation of your measured system.

Johan then presented how to interpret the EIS measurements from batteries followed by Andreas Christensen showing EIS data obtained from a lithium-ion battery and the data integrity of these measurements. The following discussion transitioned to the next presentation which was Johan explaining how to use Kramers-Krönig relations to verify the data integrity from impedance measurements.

Adobe_PDF_Icon.svgEquivalent circuits for battery related EIS measurements

Adobe_PDF_Icon.svgInterpretation of EIS data

Adobe_PDF_Icon.svgEIS data validation

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