Electrochemical Impedance Spectroscopy Part 1: Fundamentals
Electrochemical impedance spectroscopy (EIS) enables the examination of the electrochemical nature of electrodes and electrochemical cells by applying an alternating voltage (or current) and measuring the resulting current (or voltage). The resistance and capacitance components of the electrode can...
Main Authors: | , , , , , , |
---|---|
Format: | Article |
Language: | English |
Published: |
The Electrochemical Society of Japan
2022-10-01
|
Series: | Electrochemistry |
Subjects: | |
Online Access: | https://www.jstage.jst.go.jp/article/electrochemistry/90/10/90_22-66071/_html/-char/en |
_version_ | 1828074448872275968 |
---|---|
author | Kingo ARIYOSHI Zyun SIROMA Atsushi MINESHIGE Mitsuhiro TAKENO Tomokazu FUKUTSUKA Takeshi ABE Satoshi UCHIDA |
author_facet | Kingo ARIYOSHI Zyun SIROMA Atsushi MINESHIGE Mitsuhiro TAKENO Tomokazu FUKUTSUKA Takeshi ABE Satoshi UCHIDA |
author_sort | Kingo ARIYOSHI |
collection | DOAJ |
description | Electrochemical impedance spectroscopy (EIS) enables the examination of the electrochemical nature of electrodes and electrochemical cells by applying an alternating voltage (or current) and measuring the resulting current (or voltage). The resistance and capacitance components of the electrode can be evaluated by applying an AC voltage and changing the frequency. In particular, analysis using the equivalent circuit can determine important parameters related to the electrochemical reaction of the electrode, such as the charge transfer resistance, electric double-layer capacitance, and Warburg impedance. Moreover, the internal resistance of the cell can be divided into resistances caused by the positive electrode, negative electrode, and electrolyte. Because of these advantages, EIS is a powerful technique used for basic research, such as in identifying the rate-determining step of an electrochemical reaction, and also for applied research, such as characterizing electrochemical devices (e.g., batteries and capacitors). In this paper, the concept of impedance, which represents the relationship between the AC voltage and current, is first explained; then, the AC characteristics of various circuit elements used in equivalent circuits, which are essential for understanding EIS, are described. Finally, treatments of more complex circuits based on transmission-line models (TLMs), which are used to represent equivalent circuits of porous electrodes, are presented. Analyses based on TLMs are the foundation for understanding electrodes for practical applications because porous electrodes are usually used in electrochemical devices. |
first_indexed | 2024-04-11T01:43:50Z |
format | Article |
id | doaj.art-d9502f941f194c6897ccf033f976c422 |
institution | Directory Open Access Journal |
issn | 2186-2451 |
language | English |
last_indexed | 2024-04-11T01:43:50Z |
publishDate | 2022-10-01 |
publisher | The Electrochemical Society of Japan |
record_format | Article |
series | Electrochemistry |
spelling | doaj.art-d9502f941f194c6897ccf033f976c4222023-01-03T08:12:25ZengThe Electrochemical Society of JapanElectrochemistry2186-24512022-10-01901010200710200710.5796/electrochemistry.22-66071electrochemistryElectrochemical Impedance Spectroscopy Part 1: FundamentalsKingo ARIYOSHI0https://orcid.org/0000-0002-6784-6639Zyun SIROMA1https://orcid.org/0000-0002-3237-4643Atsushi MINESHIGE2https://orcid.org/0000-0002-6767-8356Mitsuhiro TAKENO3https://orcid.org/0000-0002-4235-382XTomokazu FUKUTSUKA4https://orcid.org/0000-0002-8731-9078Takeshi ABE5https://orcid.org/0000-0002-1515-8340Satoshi UCHIDA6https://orcid.org/0000-0002-5232-8548Graduate School of Engineering, Osaka Metropolitan UniversityResearch Institute of Electrochemical Energy, National Institute of Advanced Industrial Science and TechnologyGraduate School of Engineering, University of HyogoPanasonic Energy Co., Ltd.Graduate School of Engineering, Nagoya UniversityGraduate School of Engineering, Kyoto UniversityResearch Institute of Electrochemical Energy, National Institute of Advanced Industrial Science and TechnologyElectrochemical impedance spectroscopy (EIS) enables the examination of the electrochemical nature of electrodes and electrochemical cells by applying an alternating voltage (or current) and measuring the resulting current (or voltage). The resistance and capacitance components of the electrode can be evaluated by applying an AC voltage and changing the frequency. In particular, analysis using the equivalent circuit can determine important parameters related to the electrochemical reaction of the electrode, such as the charge transfer resistance, electric double-layer capacitance, and Warburg impedance. Moreover, the internal resistance of the cell can be divided into resistances caused by the positive electrode, negative electrode, and electrolyte. Because of these advantages, EIS is a powerful technique used for basic research, such as in identifying the rate-determining step of an electrochemical reaction, and also for applied research, such as characterizing electrochemical devices (e.g., batteries and capacitors). In this paper, the concept of impedance, which represents the relationship between the AC voltage and current, is first explained; then, the AC characteristics of various circuit elements used in equivalent circuits, which are essential for understanding EIS, are described. Finally, treatments of more complex circuits based on transmission-line models (TLMs), which are used to represent equivalent circuits of porous electrodes, are presented. Analyses based on TLMs are the foundation for understanding electrodes for practical applications because porous electrodes are usually used in electrochemical devices.https://www.jstage.jst.go.jp/article/electrochemistry/90/10/90_22-66071/_html/-char/enelectrochemical impedance spectroscopyequivalent circuittransmission-line modelporous electrode |
spellingShingle | Kingo ARIYOSHI Zyun SIROMA Atsushi MINESHIGE Mitsuhiro TAKENO Tomokazu FUKUTSUKA Takeshi ABE Satoshi UCHIDA Electrochemical Impedance Spectroscopy Part 1: Fundamentals Electrochemistry electrochemical impedance spectroscopy equivalent circuit transmission-line model porous electrode |
title | Electrochemical Impedance Spectroscopy Part 1: Fundamentals |
title_full | Electrochemical Impedance Spectroscopy Part 1: Fundamentals |
title_fullStr | Electrochemical Impedance Spectroscopy Part 1: Fundamentals |
title_full_unstemmed | Electrochemical Impedance Spectroscopy Part 1: Fundamentals |
title_short | Electrochemical Impedance Spectroscopy Part 1: Fundamentals |
title_sort | electrochemical impedance spectroscopy part 1 fundamentals |
topic | electrochemical impedance spectroscopy equivalent circuit transmission-line model porous electrode |
url | https://www.jstage.jst.go.jp/article/electrochemistry/90/10/90_22-66071/_html/-char/en |
work_keys_str_mv | AT kingoariyoshi electrochemicalimpedancespectroscopypart1fundamentals AT zyunsiroma electrochemicalimpedancespectroscopypart1fundamentals AT atsushimineshige electrochemicalimpedancespectroscopypart1fundamentals AT mitsuhirotakeno electrochemicalimpedancespectroscopypart1fundamentals AT tomokazufukutsuka electrochemicalimpedancespectroscopypart1fundamentals AT takeshiabe electrochemicalimpedancespectroscopypart1fundamentals AT satoshiuchida electrochemicalimpedancespectroscopypart1fundamentals |