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Basics of Teaching Electrochemical Impedance Spectroscopy of Electrolytes for Ion-rechargeable Batteries – Part 1: a Good Practice on Estimation of Bulk Resistance of Solid Polymer Electrolytes by Suhaila Idayu Abdul Halim; Chin Han Chan; Jan Apotheker is a Social Sciences article available to read on EtoBox.

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## Abstract In this publication, we present the basic to characterize the electrical properties of electrolytes that are widely used in ion-rechargeable batteries using electrochemical impedance spectroscopy (EIS). This simplified yet insightful background provided may be used for educational purposes, especially for beginners or young researchers for both undergraduate and postgraduate students. We start with introduction of electrolytes and electrochemical impedance spectroscopy (EIS) instrumentation, following with the step-by-step guidelines using three different procedures to estimate the bulk resistance (R ~b~) of the electrolytes, which is inversely proportional to the conductivity (σ ~DC~) of the materials R b ∝ 1 / σ DC $\left({R}\_{\mathrm{b}}\propto 1/{\sigma }\_{\mathrm{DC}}\right)$ . Several examples and exercises on estimation of quantity R ~b~ are supplemented for educational purposes. Comparison was made on estimation of R ~b~ using manual graphical procedures, mathematical regression procedures using commercial graphical software and equivalent circuit fitting procedures using exclusive EIS software. The results suggest that the manual graphical technique may serve

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Author

Suhaila Idayu Abdul Halim; Chin Han Chan; Jan Apotheker

Publisher

Walter de Gruyter GmbH

Published

2021

Language

EN

Field

Social Sciences (Physical Sciences)