Technology of electrochemical impedance spectroscopy for an energy-sustainable society

Research output: Contribution to journalReview articlepeer-review

3 Citations (Scopus)

Abstract

Electrochemical impedance spectroscopy has been widely used to understand the chemistry and physics of battery systems. This review covers electrochemical impedance spectroscopy used for the interpretation of impedance data of lithium-ion batteries (LIBs) from advanced equivalent circuit models to the mathematical model, which is developed by John Newman. In addition, as a method to realize an energy-sustainable society using diagnostics based on the combination of LIBs and electrochemical impedance spectroscopy, on-board diagnostics of battery packs are achieved based on an input signal generated by a power controller in a battery management system instead of the conventionally used frequency response analyzer. The diagnostic system is applicable to energy management systems which are installed in homes, buildings, and communities, accumulating the impedance data on state of health of LIBs. Finally, a future possibility regarding the diagnostics of battery packs coupled with the machine learning of impedance data is introduced.

Original languageEnglish
Pages (from-to)66-77
Number of pages12
JournalCurrent Opinion in Electrochemistry
Volume20
DOIs
Publication statusPublished - 2020 Apr

Keywords

  • Diagnostics
  • Electrochemical impedance spectroscopy (EIS)
  • In situ EIS
  • Lithium-ion battery (LIB)
  • Machine learning

ASJC Scopus subject areas

  • Analytical Chemistry
  • Electrochemistry

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