Application of Electrochemical Impedance Spectroscopy to Ferri/Ferrocyanide Redox Couple and Lithium Ion Battery Systems Using a Square Wave as Signal Input

Tokihiko Yokoshima, Daikichi Mukoyama, Kazuhiro Nakazawa, Yuhei Gima, Hidehiko Isawa, Hiroki Nara, Toshiyuki Momma, Tetsuya Osaka

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Abstract

To realize electrochemical impedance spectroscopy (EIS) using a simple measurement system, application of a square potential/current waveform to the input signals of EIS was investigated. The impedance of a simple redox reaction of [Fe(CN)<inf>6</inf>]<sup>4-</sup>/[Fe(CN)<inf>6</inf>]<sup>3-</sup> solution was measured by the potentio-EIS using a square waveform as the input signal, which was generated by a potentiostat system without a frequency response analyzer (FRA). A steady impedance response in the frequency range of 40 Hz-3.5 kHz was obtained, and the impedance was obtained by the potentiostat system with an FRA. The errors - the differences between the impedance measured by EIS with a square potential waveform and that of conventional EIS - were sufficiently low to allow impedance analysis. The impedance of a lithium-ion battery (LIB) was measured by galvano-EIS using a square waveform input signal generated by a power controller. A steady impedance response in the frequency range of 5 Hz-2.5 kHz was obtained, and the errors were sufficiently low to allow impedance analysis. It was demonstrated that both square potential-EIS (SP-EIS) and square current-EIS (SC-EIS) have great potential as simple systems for measuring impedance. Moreover, it was demonstrated that SC-EIS has potential as a simple measurement system for analyzing the state of an LIB. Thus, the potential of the SP/SC-EIS methodology was confirmed for electrochemical systems.

Original languageEnglish
Article number25551
Pages (from-to)922-928
Number of pages7
JournalElectrochimica Acta
Volume180
DOIs
Publication statusPublished - 2015 Oct 20

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Electrochemical impedance spectroscopy
Frequency response
Oxidation-Reduction
Lithium-ion batteries
hexacyanoferrate II
Redox reactions
Controllers

Keywords

  • Electrochemical impedance spectroscopy
  • FFT impedance
  • Input signal
  • Lithium ion battery
  • Square wave

ASJC Scopus subject areas

  • Electrochemistry
  • Chemical Engineering(all)

Cite this

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title = "Application of Electrochemical Impedance Spectroscopy to Ferri/Ferrocyanide Redox Couple and Lithium Ion Battery Systems Using a Square Wave as Signal Input",
abstract = "To realize electrochemical impedance spectroscopy (EIS) using a simple measurement system, application of a square potential/current waveform to the input signals of EIS was investigated. The impedance of a simple redox reaction of [Fe(CN)6]4-/[Fe(CN)6]3- solution was measured by the potentio-EIS using a square waveform as the input signal, which was generated by a potentiostat system without a frequency response analyzer (FRA). A steady impedance response in the frequency range of 40 Hz-3.5 kHz was obtained, and the impedance was obtained by the potentiostat system with an FRA. The errors - the differences between the impedance measured by EIS with a square potential waveform and that of conventional EIS - were sufficiently low to allow impedance analysis. The impedance of a lithium-ion battery (LIB) was measured by galvano-EIS using a square waveform input signal generated by a power controller. A steady impedance response in the frequency range of 5 Hz-2.5 kHz was obtained, and the errors were sufficiently low to allow impedance analysis. It was demonstrated that both square potential-EIS (SP-EIS) and square current-EIS (SC-EIS) have great potential as simple systems for measuring impedance. Moreover, it was demonstrated that SC-EIS has potential as a simple measurement system for analyzing the state of an LIB. Thus, the potential of the SP/SC-EIS methodology was confirmed for electrochemical systems.",
keywords = "Electrochemical impedance spectroscopy, FFT impedance, Input signal, Lithium ion battery, Square wave",
author = "Tokihiko Yokoshima and Daikichi Mukoyama and Kazuhiro Nakazawa and Yuhei Gima and Hidehiko Isawa and Hiroki Nara and Toshiyuki Momma and Tetsuya Osaka",
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T1 - Application of Electrochemical Impedance Spectroscopy to Ferri/Ferrocyanide Redox Couple and Lithium Ion Battery Systems Using a Square Wave as Signal Input

AU - Yokoshima, Tokihiko

AU - Mukoyama, Daikichi

AU - Nakazawa, Kazuhiro

AU - Gima, Yuhei

AU - Isawa, Hidehiko

AU - Nara, Hiroki

AU - Momma, Toshiyuki

AU - Osaka, Tetsuya

PY - 2015/10/20

Y1 - 2015/10/20

N2 - To realize electrochemical impedance spectroscopy (EIS) using a simple measurement system, application of a square potential/current waveform to the input signals of EIS was investigated. The impedance of a simple redox reaction of [Fe(CN)6]4-/[Fe(CN)6]3- solution was measured by the potentio-EIS using a square waveform as the input signal, which was generated by a potentiostat system without a frequency response analyzer (FRA). A steady impedance response in the frequency range of 40 Hz-3.5 kHz was obtained, and the impedance was obtained by the potentiostat system with an FRA. The errors - the differences between the impedance measured by EIS with a square potential waveform and that of conventional EIS - were sufficiently low to allow impedance analysis. The impedance of a lithium-ion battery (LIB) was measured by galvano-EIS using a square waveform input signal generated by a power controller. A steady impedance response in the frequency range of 5 Hz-2.5 kHz was obtained, and the errors were sufficiently low to allow impedance analysis. It was demonstrated that both square potential-EIS (SP-EIS) and square current-EIS (SC-EIS) have great potential as simple systems for measuring impedance. Moreover, it was demonstrated that SC-EIS has potential as a simple measurement system for analyzing the state of an LIB. Thus, the potential of the SP/SC-EIS methodology was confirmed for electrochemical systems.

AB - To realize electrochemical impedance spectroscopy (EIS) using a simple measurement system, application of a square potential/current waveform to the input signals of EIS was investigated. The impedance of a simple redox reaction of [Fe(CN)6]4-/[Fe(CN)6]3- solution was measured by the potentio-EIS using a square waveform as the input signal, which was generated by a potentiostat system without a frequency response analyzer (FRA). A steady impedance response in the frequency range of 40 Hz-3.5 kHz was obtained, and the impedance was obtained by the potentiostat system with an FRA. The errors - the differences between the impedance measured by EIS with a square potential waveform and that of conventional EIS - were sufficiently low to allow impedance analysis. The impedance of a lithium-ion battery (LIB) was measured by galvano-EIS using a square waveform input signal generated by a power controller. A steady impedance response in the frequency range of 5 Hz-2.5 kHz was obtained, and the errors were sufficiently low to allow impedance analysis. It was demonstrated that both square potential-EIS (SP-EIS) and square current-EIS (SC-EIS) have great potential as simple systems for measuring impedance. Moreover, it was demonstrated that SC-EIS has potential as a simple measurement system for analyzing the state of an LIB. Thus, the potential of the SP/SC-EIS methodology was confirmed for electrochemical systems.

KW - Electrochemical impedance spectroscopy

KW - FFT impedance

KW - Input signal

KW - Lithium ion battery

KW - Square wave

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