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Anionic Effects on Li-Ion Activity and Li-Ion Intercalation Reaction Kinetics in Highly Concentrated Li Salt/Propylene Carbonate Solutions
http://hdl.handle.net/10131/00015245
http://hdl.handle.net/10131/00015245356f351d-fb4f-4257-958f-31e399f96f7c
| 名前 / ファイル | ライセンス | アクション |
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Draft_PC_Anion_revised_final_black.pdf (1.0 MB)
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| Item type | 学術雑誌論文 / Journal Article(1) | |||||||||||||||||||
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| 公開日 | 2023-04-19 | |||||||||||||||||||
| タイトル | ||||||||||||||||||||
| タイトル | Anionic Effects on Li-Ion Activity and Li-Ion Intercalation Reaction Kinetics in Highly Concentrated Li Salt/Propylene Carbonate Solutions | |||||||||||||||||||
| 言語 | en | |||||||||||||||||||
| 言語 | ||||||||||||||||||||
| 言語 | eng | |||||||||||||||||||
| キーワード | ||||||||||||||||||||
| 主題 | Anions, Electrodes, Electrolytes, Salts, Solvents(en) | |||||||||||||||||||
| 資源タイプ | ||||||||||||||||||||
| 資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||||||||||||||||
| 資源タイプ | journal article | |||||||||||||||||||
| アクセス権 | ||||||||||||||||||||
| アクセス権 | open access | |||||||||||||||||||
| アクセス権URI | http://purl.org/coar/access_right/c_abf2 | |||||||||||||||||||
| 著者 |
Ugata, Yosuke
× Ugata, Yosuke
× Tatara, Ryoichi
e-Rad_Researcher
20876081
× Ock, Ji-young
× Jingjun, Zhang
× Kazuhide, Ueno
e-Rad_Researcher
30637377
× Watanabe, Masayoshi
e-Rad_Researcher
60158657
× Dokko, Kaoru
e-Rad_Researcher
70438117
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| 抄録 | ||||||||||||||||||||
| 内容記述タイプ | Abstract | |||||||||||||||||||
| 内容記述 | Certain highly concentrated electrolytes (HCEs) enhance the charge-transfer reaction rate at the electrode/electrolyte interface in Li-ion batteries. The solvation structure of Li+ in HCEs significantly affects the electrochemical interfacial reaction kinetics. However, the effects of different anions on these kinetics have not yet been fully understood. Therefore, in this study, we investigated the effects of anionic species on the liquid structure and electrochemical reactions of HCEs composed of various Li salts and propylene carbonate (PC). Raman spectra revealed that both PC and anions were coordinated to Li+ ions in HCEs and that the concentration of uncoordinated (free) PC changed depending on the anionic species. Consequently, the activity of Li+ in the electrolyte changed depending on the anionic species. The use of Li salts with weakly Lewis basic anions increased the activity of Li+ and decreased the concentration of free PC in HCEs. The activity of Li+ in the electrolyte significantly affected the Li+ intercalation/deintercalation reaction rate of the LiCoO2 thin-film electrode. Electrochemical impedance spectroscopy revealed that the interfacial reaction rate of LiCoO2 was enhanced in the HCEs with anions having weaker Lewis basicity owing to the higher Li+ ion activity. | |||||||||||||||||||
| 言語 | en | |||||||||||||||||||
| 書誌情報 |
Journal of physical chemistry. C 巻 127, 号 8, p. 3977-3987, 発行日 2023-02-16 |
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| 収録物識別子タイプ | ISSN | |||||||||||||||||||
| 収録物識別子 | 19327455 | |||||||||||||||||||
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| 収録物識別子タイプ | NCID | |||||||||||||||||||
| 収録物識別子 | AA12192210 | |||||||||||||||||||
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| 関連タイプ | isVersionOf | |||||||||||||||||||
| 識別子タイプ | DOI | |||||||||||||||||||
| 関連識別子 | https://doi.org/10.1021/acs.jpcc.2c08653 | |||||||||||||||||||
| 権利 | ||||||||||||||||||||
| 言語 | en | |||||||||||||||||||
| 権利情報 | This document is the Accepted Manuscript version of a Published Work that appeared in final form in Journal of physical chemistry. C, Copyright © 2023 American Chemical Society after peer review and technical editing by the publisher. To access the final edited and published work see https://pubs.acs.org/articlesonrequest/AOR-VS7INJPPM6Y2JNXR3U72 | |||||||||||||||||||
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| 出版タイプ | AM | |||||||||||||||||||
| 出版タイプResource | http://purl.org/coar/version/c_ab4af688f83e57aa | |||||||||||||||||||
| 出版者 | ||||||||||||||||||||
| 出版者 | American Chemical Society | |||||||||||||||||||
