Mark Žic
Ruđer Bošković Institute, Croatia
Inverse problems in Electrochemical Impedance Spectroscopy
Abstract:
Electrochemical Impedance Spectroscopy (EIS) is a well-known non-destructive experimental
technique that can be used to probe different electrical properties of both diverse materials
and power sources under the investigation. However, EIS problems are generally ill-posed; and
thus, they should be treated by advanced mathematical techniques.
Nowadays, the most studied EIS problems are Nonlinear Complex Least-Squares Problem (CNLS),
Distribution of Relaxation Times (DRT), and Distribution of Diffusion Times (DDT). Herein,
we will present EIS problem solutions that were extracted by the application of diverse
mathematical techniques. For that purpose, we used synthetic and experimental EIS data.
The numerical experiments were conducted by the application of general-purpose Python
programming language.
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