Redox oscillations in 18650-type lithium-ion cell revealed by in operando Compton scattering imaging

Compton scattering imaging using high-energy synchrotron x-rays allows the visualization of the spatio-temporal lithiation state in lithium-ion batteries probed in-operando. Here, we apply this imaging technique to the commercial 18650-type cylindrical lithium-ion battery. Our analysis of the linesh...

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Published inarXiv.org
Main Authors Suzuki, Kosuke, Suzuki, Shunta, Otsuka, Yuji, Tsuji, Naruki, Jalkanen, Kirsi, Koskinen, Jari, Hoshi, Kazushi, Honkanen, Ari-Pekka, Hasnain Hafiz, Sakurai, Yoshiharu, Kanninen, Mika, Huotari, Simo, Bansil, Arun, Sakurai, Hiroshi, Barbiellini, Bernardo
Format Paper Journal Article
LanguageEnglish
Published Ithaca Cornell University Library, arXiv.org 13.05.2021
Subjects
Elastic scattering
Electric cells
Imaging
Imaging techniques
Lithium
Lithium-ion batteries
Oscillations
Physics - Applied Physics
Physics - Pattern Formation and Solitons
Rechargeable batteries
Synchrotron radiation
Synchrotrons
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Summary:Compton scattering imaging using high-energy synchrotron x-rays allows the visualization of the spatio-temporal lithiation state in lithium-ion batteries probed in-operando. Here, we apply this imaging technique to the commercial 18650-type cylindrical lithium-ion battery. Our analysis of the lineshapes of the Compton scattering spectra taken from different electrode layers reveals the emergence of inhomogeneous lithiation patterns during the charge-discharge cycles. Moreover, these patterns exhibit oscillations in time where the dominant period corresponds to the time scale of the charging curve.
ISSN:2331-8422
DOI:10.48550/arxiv.2105.06379