A User’s Guide to the Distribution of Relaxation Times

Concepts for Robust Application

Jake Huang

Presented by Jake Huang
Institute of Inorganic and Analytical Chemistry
University of Münster
48149 Münster, Germany

Abstract:

The distribution of relaxation times (DRT) is a versatile and powerful tool for electrochemical impedance analysis. Unfortunately, many users (or potential users) are frustrated by a lack of understanding of core DRT concepts, the wide array of calculation methods and software, the subjectivity of tuning, and the difficulty of interpreting results. This webinar will seek to empower users by providing a clear understanding of the DRT to enable robust, reproducible, and interpretable analyses.

This webinar will cover:

•  The concept of the DRT and how it relates to other modeling approaches
• Why the DRT calculation is ambiguous and the importance of tuning
• A conceptual (and lightly mathematical) introduction to DRT calculation methods
• How to apply the DRT to experimental data, from best practices to potential pitfalls
• Opportunities for more advanced usage of the DRT 

Experimental examples will be drawn from solid-state devices, but the principles should be applicable to a wide range of fields.

Bio:

Jake Huang is an Alexander von Humboldt postdoctoral fellow at the University of Münster. His broad research interests are the development of electrochemical characterization/analysis techniques and autonomous experimentation capabilities to facilitate progress in solid-state electrochemical energy conversion devices. Currently, he focuses on operando electrochemical investigations to improve understanding and accelerate development of solid-state batteries.