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Title: High energy density rechargeable magnesium battery using earth-abundant and non-toxic elements.
Authors: Orikasa, Yuki
Masese, Titus
Koyama, Yukinori
Mori, Takuya
Hattori, Masashi
Yamamoto, Kentaro  kyouindb  KAKEN_id  orcid (unconfirmed)
Okado, Tetsuya
Huang, Zhen-Dong
Minato, Taketoshi
Tassel, Cédric  kyouindb  KAKEN_id
Kim, Jungeun
Kobayashi, Yoji
Abe, Takeshi
Kageyama, Hiroshi
Uchimoto, Yoshiharu  kyouindb  KAKEN_id  orcid (unconfirmed)
Author's alias: 折笠, 有基
タッセル, セドリック
陰山, 洋
内本, 喜晴
Keywords: Batteries
Issue Date: 11-Jul-2014
Publisher: Nature Publishing Group
Journal title: Scientific reports
Volume: 4
Thesis number: 5622
Abstract: 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.
Description: 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.
Rights: 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
DOI(Published Version): 10.1038/srep05622
PubMed ID: 25011939
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