Methods—unexpected effects in galvanostatic EIS of randles' cells: Initial transients and harmonics generated

Date
2022-03-17
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Source Title
Journal of The Electrochemical Society
Print ISSN
0013-4651
Electronic ISSN
1945-7111
Publisher
Electrochemical Society, Inc.
Volume
169
Issue
3
Pages
[1] - [12]
Language
English
Type
Article
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Abstract

Non-linear EIS analysis is gaining wider attention and interest due to the deeper understanding that is provided especially when combined with linear EIS. The nonlinear part of the data can get corrupted due to a number of effects. One of these is the initial transient, which is the response right after excitation signal is applied before a steady-state is reached. In this study, we demonstrate this phenomenon through analyzing simplified Randles' cells via Kirchoff's laws. To get rid of the effects of the initial transient, instrument manufacturers typically discard some fraction of the response, the effectiveness of which, as demonstrated here has to be checked.

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Published Version (Please cite this version)