Development of impedance measurement of lithium ion batteries electrode using terahertz chemical microscope

In recent years, with the spread of electric vehicles, improvement in the performance of lithium ion batteries has been required. Evaluation of the active material is important because the performance of the lithium ion battery is affected by the movement of lithium ions at the electrode active mate...

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Bibliographic Details
Published inElectrical engineering in Japan Vol. 214; no. 4
Main Authors Shimizu, Masashi, Yamanaka, Ryoji, Teranishi, Takashi, Wang, Jin, Sakai, Kenji, Tsukada, Keiji, Kiwa, Toshihiko
Format Journal Article
LanguageEnglish
Published Hoboken Wiley Subscription Services, Inc 01.12.2021
Subjects
Electric vehicles
Electrodes
Impedance measurement
Ions
Lithium
lithium ion battery
Lithium-ion batteries
Rechargeable batteries
terahertz
terahertz chemical microscope
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Summary:In recent years, with the spread of electric vehicles, improvement in the performance of lithium ion batteries has been required. Evaluation of the active material is important because the performance of the lithium ion battery is affected by the movement of lithium ions at the electrode active material‐electrolyte interface. In this study, we fabricated a lithium ion battery with the sensing plate, which is a potential sensor, attached to the positive electrode, and evaluated lithium ion battery with a terahertz chemical microscope (TCM). As a result, we succeeded in measuring the potential distribution of the positive electrode during charging and discharging, and the local impedance.
Bibliography:Translated from Volume 141 Number 8, pages 273–278, DOI
10.1541/ieejsmas.141.273
of
IEEJ Transactions on Sensors and Micromachines
ISSN:0424-7760
1520-6416
DOI:10.1002/eej.23355