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acsaem.2c02904.pdf | 1.92 MB | Adobe PDF | 見る/開く |
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dc.contributor.author | Zheng, Yayun | en |
dc.contributor.author | Jitto, Shunta | en |
dc.contributor.author | Hwang, Jinkwang | en |
dc.contributor.author | Matsumoto, Kazuhiko | en |
dc.contributor.author | Hagiwara, Rika | en |
dc.contributor.alternative | 鄭, 亞雲 | ja |
dc.contributor.alternative | 実藤, 俊太 | ja |
dc.contributor.alternative | 黄, 珍光 | ja |
dc.contributor.alternative | 松本, 一彦 | ja |
dc.contributor.alternative | 萩原, 理加 | ja |
dc.date.accessioned | 2022-11-30T03:36:56Z | - |
dc.date.available | 2022-11-30T03:36:56Z | - |
dc.date.issued | 2022-11-28 | - |
dc.identifier.uri | http://hdl.handle.net/2433/277552 | - |
dc.description.abstract | The orthorhombic NaFeF₃, which is envisioned to be an auspicious positive electrode for Na-ion batteries, has drawn considerable interest as an environmentally benign energy material with exceptionally high theoretical capacity. Despite these prospects, the reaction mechanism(s) during orthorhombic NaFeF₃ operations are still not well understood. Thus, in a bid to expound on this research space, we report the reaction mechanism(s) of a carbon-coated orthorhombic NaFeF₃ prepared through high-energy ball-milling and heat treatment processes. A thermally stable ionic liquid electrolyte at elevated temperatures is employed to maximize the utilization of NaFeF₃. The orthorhombic NaFeF₃ exhibits high electrochemical activity and long-term cycling stability of up to 400 cycles at 90℃. Through a combination of galvanostatic intermittent titration technique and synchrotron X-ray powder diffraction measurements, we discover that the (de)sodiation processes are facilitated by a multiphase transformation mechanism. Further, we experimentally identify, for the first time, an orthorhombic Na₀₅FeF₃ compound as an intermediate phase of the transformations. The results discussed in this work are expected to provide invaluable insights for the future advancement of the Na–Fe–F system. | en |
dc.language.iso | eng | - |
dc.publisher | American Chemical Society (ACS) | en |
dc.rights | This document is the Accepted Manuscript version of a Published Work that appeared in final form in 'ACS Applied Energy Materials', copyright © American Chemical Society after peer review and technical editing by the publisher. To access the final edited and published work see https://doi.org/10.1021/acsaem.2c02904. | en |
dc.rights | The full-text file will be made open to the public on 31 October 2023 in accordance with publisher's 'Terms and Conditions for Self-Archiving' | en |
dc.rights | This is not the published version. Please cite only the published version. この論文は出版社版でありません。引用の際には出版社版をご確認ご利用ください。 | en |
dc.subject | orthorhombic NaFeF₃ | en |
dc.subject | sodium-ion batteries | en |
dc.subject | ionic liquid electrolyte | en |
dc.subject | elevated temperature | en |
dc.subject | multiphase transformation | en |
dc.subject | orthorhombic Na₀.₅FeF₃ | en |
dc.title | Multiphase Transformation of NaFeF₃ During Desodiation and Sodiation | en |
dc.type | journal article | - |
dc.type.niitype | Journal Article | - |
dc.identifier.jtitle | ACS Applied Energy Materials | en |
dc.identifier.volume | 5 | - |
dc.identifier.issue | 11 | - |
dc.identifier.spage | 14361 | - |
dc.identifier.epage | 14371 | - |
dc.relation.doi | 10.1021/acsaem.2c02904 | - |
dc.textversion | author | - |
dcterms.accessRights | open access | - |
dcterms.alternative | Multi-phase Transformation of NaFeF₃ During Desodiation and Sodiation | en |
datacite.date.available | 2023-10-31 | - |
datacite.awardNumber | 21H02047 | - |
datacite.awardNumber.uri | https://kaken.nii.ac.jp/ja/grant/KAKENHI-PROJECT-21H02047/ | - |
dc.identifier.pissn | 2574-0962 | - |
jpcoar.funderName | 日本学術振興会 | ja |
jpcoar.awardTitle | 固液二相電解質を用いた液体ナトリウム金属二次電池 | ja |
出現コレクション: | 学術雑誌掲載論文等 |
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