Electric Potential Mapping of All-Solid-State Lithium Ion Batteries using A Terahertz Chemical Microscope

Ryota Tomie, Taketo Yamaguchi, Masashi Shimizu, Kashu Hamada, Takashi Teranishi, Hidetoshi Nose, Masaki Kobayashi, Jin Wang, Kenji Sakai, Toshihiko Kiwa

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

A terahertz (THz) chemical microscope has been developed to measure the electric potential distribution of liquid phase lithium ion batteries (LIBs) during charging and discharging. A LIB was fabricated on a sensing plate, which consists of SiO2 and Si films on a sapphire substrate, to generate THz pulses by a laser irradiation. Since the amplitude of THz is proportional to the electric potential on the sensing plate, the electric potential distribution of the lithium ion battery on the sensing plate could be visualized. In this study, the electric potential distribution across a conventional all-solid-state LIB was measured by immobilizing the LIB on the sensing plate using epoxy resin. The distribution of the electric potentials of the battery was clearly visualized by the TCM. This result indicates that the TCM could be one of useful tools for the development high performance batteries.

Original languageEnglish
Title of host publicationIRMMW-THz 2022 - 47th International Conference on Infrared, Millimeter and Terahertz Waves
PublisherIEEE Computer Society
ISBN (Electronic)9781728194271
DOIs
Publication statusPublished - 2022
Event47th International Conference on Infrared, Millimeter and Terahertz Waves, IRMMW-THz 2022 - Delft, Netherlands
Duration: Aug 28 2022Sep 2 2022

Publication series

NameInternational Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz
Volume2022-August
ISSN (Print)2162-2027
ISSN (Electronic)2162-2035

Conference

Conference47th International Conference on Infrared, Millimeter and Terahertz Waves, IRMMW-THz 2022
Country/TerritoryNetherlands
CityDelft
Period8/28/229/2/22

ASJC Scopus subject areas

  • Energy Engineering and Power Technology
  • Electrical and Electronic Engineering

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