| アイテムタイプ |
学術雑誌論文 / Journal Article(1) |
| 公開日 |
2024-05-23 |
| タイトル |
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タイトル |
Operando resonant soft X-ray emission spectroscopy of the LiMn2O4 cathode using an aqueous electrolyte solution |
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言語 |
en |
| 言語 |
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|
言語 |
eng |
| 資源タイプ |
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資源タイプ識別子 |
http://purl.org/coar/resource_type/c_6501 |
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資源タイプ |
journal article |
| 著者 |
Daisuke Asakura
Yusuke Nanba
Hideharu Niwa
Hisao Kiuchi
Jun Miyawaki
Masashi Okubo
Hirofumi Matsuda
Yoshihisa Harada
Eiji Hosono
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| 抄録 |
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内容記述タイプ |
Abstract |
|
内容記述 |
The Mn 3d electronic-structure change of the LiMn2O4 cathode during Li-ion extraction/insertion in an aqueous electrolyte solution was studied by operando resonant soft X-ray emission spectroscopy (RXES). The Mn L3 RXES spectra for the charged state revealed the Mn4+ state with strong chargetransfer from the O 2p to Mn 3d orbitals dominates, while for the open-circuit-voltage and discharged states it is ascribed to the mixture of sites with Mn3+ and Mn4+ states. The degree of charge transfer is significantly different between the Mn3+ and Mn4+ states, indicating that the redox reaction takes place on the strongly-hybridized Mn 3d?O 2p orbital rather than the localized Mn 3d orbital. |
| 書誌情報 |
Physical Chemistry Chemical Physics
巻 32,
p. 19177-19183,
発行日 2022-06
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| 出版者 |
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出版者 |
Royal Society of Chemistry |
| ISSN |
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収録物識別子タイプ |
ISSN |
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収録物識別子 |
1463-9084 |
| DOI |
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識別子タイプ |
DOI |
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関連識別子 |
10.1039/D2CP01040B |
