2019年8月28日
Microscopic photoelectron analysis of single crystalline LiCoO2 particles during the charge-discharge in an all solid-state lithium ion battery
Scientific Reports
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プレプリント・著者最終稿
回数 : 495
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- 巻
- 9
- 号
- 1
- 開始ページ
- 12452
- 終了ページ
- 記述言語
- 英語
- 掲載種別
- 研究論文(学術雑誌)
- DOI
- 10.1038/s41598-019-48842-6
- 出版者・発行元
- Springer Science and Business Media LLC
We report synchrotron-based operando soft X-ray microscopic photoelectron spectroscopy under charge-discharge control of single crystalline LiCoO2 (LCO) particles as an active electrode material for an all solid-state lithium-ion battery (LIB). Photoelectron mapping and the photoelectron spectrum of a selected microscopic region are obtained by a customized operando cell for LIBs. During the charge process, a more effective Li extraction from a side facet of the single crystalline LCO particle than from the central part is observed, which ensures the reliability of the system as an operando microscopic photoelectron analyzer that can track changes in the electronic structure of a selected part of the active particle. Based on these assessments, the no drastic change in the Co 2p XPS spectra during charge-discharge of LCO supports that the charge-polarization may occur at the oxygen side by strong hybridization between Co 3d and O 2p orbitals. The success of tracking the electronic-structure change at each facet of a single crystalline electrode material during charge-discharge is a major step toward the fabrication of innovative active electrode materials for LIBs.
- リンク情報
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- DOI
- https://doi.org/10.1038/s41598-019-48842-6
- Web of Science
- https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=JSTA_CEL&SrcApp=J_Gate_JST&DestLinkType=FullRecord&KeyUT=WOS:000482886700006&DestApp=WOS_CPL
- URL
- http://www.nature.com/articles/s41598-019-48842-6.pdf
- URL
- http://www.nature.com/articles/s41598-019-48842-6
- ID情報
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- DOI : 10.1038/s41598-019-48842-6
- ISSN : 2045-2322
- eISSN : 2045-2322
- ORCIDのPut Code : 70261792
- Web of Science ID : WOS:000482886700006