In operando quantitation of Li concentration for a commercial Li-ion rechargeable battery using high-energy X-ray Compton scattering.

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ID: 101616
2017
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Abstract
Compton scattering is one of the most promising probes for quantitating Li under in operando conditions, since high-energy X-rays, which have high penetration power, are used as the incident beam and the Compton-scattered energy spectrum has specific line-shapes for each element. An in operando quantitation method to determine the Li composition in electrodes has been developed by using line-shape (S-parameter) analysis of the Compton-scattered energy spectrum. In this study, S-parameter analysis has been applied to a commercial coin cell Li-ion rechargeable battery and the variation of the S-parameters during the charge/discharge cycle at the positive and negative electrodes has been obtained. By using calibration curves for Li composition in the electrodes, the change in Li composition of the positive and negative electrodes has been determined using the S-parameters simultaneously.
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Authors Suzuki, Kosuke;Suzuki, Ayahito;Ishikawa, Taiki;Itou, Masayoshi;Yamashige, Hisao;Orikasa, Yuki;Uchimoto, Yoshiharu;Sakurai, Yoshiharu;Sakurai, Hiroshi;
Journal journal of synchrotron radiation
Year 2017
DOI
10.1107/S1600577517010098
URL
Keywords
quantitation compton profile li-ion battery in operando measurement

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