ダウンロード数: 85
このアイテムのファイル:
ファイル | 記述 | サイズ | フォーマット | |
---|---|---|---|---|
j.jelechem.2021.115508.pdf | 1.86 MB | Adobe PDF | 見る/開く |
完全メタデータレコード
DCフィールド | 値 | 言語 |
---|---|---|
dc.contributor.author | Shimoda, Keiji | en |
dc.contributor.author | Minato, Taketoshi | en |
dc.contributor.author | Konishi, Hiroaki | en |
dc.contributor.author | Kano, Gentaro | en |
dc.contributor.author | Nakatani, Tomotaka | en |
dc.contributor.author | Fujinami, So | en |
dc.contributor.author | Celik Kucuk, Asuman | en |
dc.contributor.author | Kawaguchi, Shogo | en |
dc.contributor.author | Ogumi, Zempachi | en |
dc.contributor.author | Abe, Takeshi | en |
dc.contributor.alternative | 下田, 景士 | ja |
dc.contributor.alternative | 湊, 丈俊 | ja |
dc.contributor.alternative | 小西, 宏明 | ja |
dc.contributor.alternative | 狩野, 巌大郎 | ja |
dc.contributor.alternative | 仲谷, 友孝 | ja |
dc.contributor.alternative | 藤波, 想 | ja |
dc.contributor.alternative | 小久見, 善八 | ja |
dc.contributor.alternative | 安部, 武志 | ja |
dc.date.accessioned | 2022-05-02T07:49:14Z | - |
dc.date.available | 2022-05-02T07:49:14Z | - |
dc.date.issued | 2021-08 | - |
dc.identifier.uri | http://hdl.handle.net/2433/269542 | - |
dc.description.abstract | Fluoride shuttle batteries (FSBs), which utilize F– ion migration in electrochemical reactions, have recently advanced in academic research as next-generation rechargeable batteries. Bismuth trifluoride (BiF₃) and its relatives are expected to be promising positive electrode materials for FSBs because of their high theoretical capacity. Herein, the defluorination/fluorination reaction of a BaF₂-doped BiF₃, Bi₀.₈Ba₀.₂F₂.₈, positive electrode was investigated using synchrotron-radiation X-ray diffraction, X-ray absorption spectroscopy, and transmission electron microscopy. The Bi₀.₈Ba₀.₂F₂.₈ electrode showed a higher reversible capacity in the first cycle and improved capacity retention compared to the BiF₃ electrode. The pristine Bi₀.₈Ba₀.₂F₂.₈ showed a tysonite-type structure, and metallic Bi and BaF₂ nanoparticles were observed in the fully defluorinated state. Moreover, we found that the (re-)fluorinated material consisted of BiF₃ and BaF₂ nanoparticles, indicating that bismuth is the only redox-active element, and that the tysonite structure is not recovered after the initial discharging. This suggests that the cycle performance of the Bi₀.₈Ba₀.₂F₂.₈ electrode may be improved due to the suppression of the coarsening of BiF₃ nanoparticles by the adhesion of BaF₂ nanoparticles formed after initial defluorination. | en |
dc.language.iso | eng | - |
dc.publisher | Elsevier BV | en |
dc.rights | © 2021. This manuscript version is made available under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International license. | en |
dc.rights | The full-text file will be made open to the public on 15 August 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.rights.uri | https://creativecommons.org/licenses/by-nc-nd/4.0/ | - |
dc.subject | Fluoride shuttle battery | en |
dc.subject | Bismuth trifluoride | en |
dc.subject | Tysonite | en |
dc.title | Defluorination/fluorination mechanism of Bi₀.₈Ba₀.₂F₂.₈ as a fluoride shuttle battery positive electrode | en |
dc.type | journal article | - |
dc.type.niitype | Journal Article | - |
dc.identifier.jtitle | Journal of Electroanalytical Chemistry | en |
dc.identifier.volume | 895 | - |
dc.relation.doi | 10.1016/j.jelechem.2021.115508 | - |
dc.textversion | author | - |
dc.identifier.artnum | 115508 | - |
dcterms.accessRights | open access | - |
datacite.date.available | 2023-08-15 | - |
dc.identifier.pissn | 1572-6657 | - |
出現コレクション: | 学術雑誌掲載論文等 |
このアイテムは次のライセンスが設定されています: クリエイティブ・コモンズ・ライセンス