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タイトル: | High energy density rechargeable magnesium battery using earth-abundant and non-toxic elements. |
著者: | Orikasa, Yuki Masese, Titus Koyama, Yukinori Mori, Takuya Hattori, Masashi Yamamoto, Kentaro https://orcid.org/0000-0002-8739-4246 (unconfirmed) Okado, Tetsuya Huang, Zhen-Dong Minato, Taketoshi Tassel, Cédric https://orcid.org/0000-0002-8867-4813 (unconfirmed) Kim, Jungeun Kobayashi, Yoji Abe, Takeshi https://orcid.org/0000-0002-1515-8340 (unconfirmed) Kageyama, Hiroshi Uchimoto, Yoshiharu https://orcid.org/0000-0002-1491-2647 (unconfirmed) |
著者名の別形: | 折笠, 有基 タッセル, セドリック 陰山, 洋 内本, 喜晴 |
キーワード: | Batteries Electrochemistry |
発行日: | 11-Jul-2014 |
出版者: | Nature Publishing Group |
誌名: | Scientific reports |
巻: | 4 |
論文番号: | 5622 |
抄録: | Rechargeable magnesium batteries are poised to be viable candidates for large-scale energy storage devices in smart grid communities and electric vehicles. However, the energy density of previously proposed rechargeable magnesium batteries is low, limited mainly by the cathode materials. Here, we present new design approaches for the cathode in order to realize a high-energy-density rechargeable magnesium battery system. Ion-exchanged MgFeSiO4 demonstrates a high reversible capacity exceeding 300 mAh·g(-1) at a voltage of approximately 2.4 V vs. Mg. Further, the electronic and crystal structure of ion-exchanged MgFeSiO4 changes during the charging and discharging processes, which demonstrates the (de)insertion of magnesium in the host structure. The combination of ion-exchanged MgFeSiO4 with a magnesium bis(trifluoromethylsulfonyl)imide-triglyme electrolyte system proposed in this work provides a low-cost and practical rechargeable magnesium battery with high energy density, free from corrosion and safety problems. |
記述: | 高エネルギー密度・高安全性・低コスト二次電池の開発に成功 -リチウムからマグネシウム金属へ-. 京都大学プレスリリース. 2014-07-11. |
著作権等: | This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article's Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder in order to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/ |
URI: | http://hdl.handle.net/2433/188958 |
DOI(出版社版): | 10.1038/srep05622 |
PubMed ID: | 25011939 |
関連リンク: | https://www.kyoto-u.ac.jp/ja/research-news/2014-07-11 |
出現コレクション: | 学術雑誌掲載論文等 |
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