Phenomenological investigation of operando lithium-ion battery for automotive application

Sohei Suga, Satoshi Takaichi, Junko Kurihara, Takao Nakagaki, Shuichiro Hirai, Yuichiro Tabuchi

Research output: Contribution to conferencePaper

Abstract

Lithium-ion batteries for automotive use require not only downsizing but also compatibility between energy density and power density. To satisfy these requirements, a phenomenological understanding of the conditions occurring in a battery during operation is essential. Understanding the behavior of ion transport during charging and discharging is an especially key factor for optimal battery design. This paper presents the results of X-ray in-situ visualization and in-situ electrochemical impedance spectroscopy (EIS). X-ray analysis showed the ion concentration change at the electrodes and EIS revealed the resistance change. The results agreed well quantitatively and were validated by a numerical method.

Original languageEnglish
Publication statusPublished - 2018 Jan 1
Event31st International Electric Vehicle Symposium and Exhibition, EVS 2018 and International Electric Vehicle Technology Conference 2018, EVTeC 2018 - Kobe City, Japan
Duration: 2018 Sep 302018 Oct 3

Conference

Conference31st International Electric Vehicle Symposium and Exhibition, EVS 2018 and International Electric Vehicle Technology Conference 2018, EVTeC 2018
CountryJapan
CityKobe City
Period18/9/3018/10/3

Keywords

  • Electrochemical impedance spectroscopy
  • Lithium-ion battery
  • Operando analysis

ASJC Scopus subject areas

  • Fuel Technology
  • Automotive Engineering
  • Electrical and Electronic Engineering

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  • Cite this

    Suga, S., Takaichi, S., Kurihara, J., Nakagaki, T., Hirai, S., & Tabuchi, Y. (2018). Phenomenological investigation of operando lithium-ion battery for automotive application. Paper presented at 31st International Electric Vehicle Symposium and Exhibition, EVS 2018 and International Electric Vehicle Technology Conference 2018, EVTeC 2018, Kobe City, Japan.