Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

Dependency of Charge-Discharge Rate on Lithium Reaction Distributions for a Commercial Lithium Coin Cell Visualized by Compton Scattering Imaging

Kosuke Suzuki
* ORCID logo ,
Ryo Kanai
,
Naruki Tsuji
,
Hisao Yamashige
,
Yuki Orikasa
,
Yoshiharu Uchimoto
,
Yoshiharu Sakurai
,
Hiroshi Sakurai
Version 1 : Received: 23 August 2018 / Approved: 23 August 2018 / Online: 23 August 2018 (11:31:45 CEST)

A peer-reviewed article of this Preprint also exists.

Suzuki, K.; Kanai, R.; Tsuji, N.; Yamashige, H.; Orikasa, Y.; Uchimoto, Y.; Sakurai, Y.; Sakurai, H. Dependency of the Charge–Discharge Rate on Lithium Reaction Distributions for a Commercial Lithium Coin Cell Visualized by Compton Scattering Imaging. Condens. Matter 2018, 3, 27. Suzuki, K.; Kanai, R.; Tsuji, N.; Yamashige, H.; Orikasa, Y.; Uchimoto, Y.; Sakurai, Y.; Sakurai, H. Dependency of the Charge–Discharge Rate on Lithium Reaction Distributions for a Commercial Lithium Coin Cell Visualized by Compton Scattering Imaging. Condens. Matter 2018, 3, 27.

Abstract

In this study, lithium reaction distributions, dependent on charge-discharge rate, were nondestructively visualized for a commercial lithium-ion battery, using the Compton scattering imaging technique. By comparing lithium reaction distributions obtained from two different charge-discharge speeds, residual lithium ions were detected at the center of the negative electrode on a fully discharged state, by relatively high-speed discharge rate. Moreover, we confirmed that inhomogeneous reactions were facilitated on a relatively high-speed charge-discharge rate, in both the negative and positive electrodes. A feature of our technique is that it can be applied to commercially used lithium-ion batteries, because it uses high-energy X-rays with a high penetration power. Our technique thus opens a novel analyzing pathway for developing advanced batteries.

Keywords

lithium reaction distribution; in-operando measurement; Compton scattering imaging

Subject

Engineering, Energy and Fuel Technology

Copyright: This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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