フルテキストファイル
著者
Shimizu Masahiro Department of Chemistry and Biotechnology, Graduate School of Engineering, Tottori University/Center for Research on Green Sustainable Chemistry, Tottori University
Usui Hiroyuki Department of Chemistry and Biotechnology, Graduate School of Engineering, Tottori University/Center for Research on Green Sustainable Chemistry, Tottori University 鳥取大学研究者総覧 KAKEN研究者をさがす
Yamane Kazuya Department of Chemistry and Biotechnology, Graduate School of Engineering, Tottori University/Center for Research on Green Sustainable Chemistry, Tottori University
Sakata Takuma Department of Chemistry and Biotechnology, Graduate School of Engineering, Tottori University/Center for Research on Green Sustainable Chemistry, Tottori University
Nokami Toshiki Department of Chemistry and Biotechnology, Graduate School of Engineering, Tottori University/Center for Research on Green Sustainable Chemistry, Tottori University 鳥取大学研究者総覧 KAKEN研究者をさがす
Itoh Toshiyuki Department of Chemistry and Biotechnology, Graduate School of Engineering, Tottori University/Center for Research on Green Sustainable Chemistry, Tottori University 鳥取大学研究者総覧 KAKEN研究者をさがす
Sakaguchi Hiroki Department of Chemistry and Biotechnology, Graduate School of Engineering, Tottori University/Center for Research on Green Sustainable Chemistry, Tottori University 鳥取大学研究者総覧 KAKEN研究者をさがす
NDC分類
5類 技術・工学・工業
抄録
The electrochemical Na-insertion/extraction properties of phosphorus as a Na-ion battery anode in ionic liquid electrolytes were investigated by using a thick film without any binder or conductive additive. The ionic liquid with more electrochemically-stable cation structure, 1-((2-methoxyethoxy)methyl)-1-methylpyrrolidinium bis(fluorosulfonyl)amide (Py1MEM-FSA), delivered a high reversible capacity of 310 mA h g−1 at the 100th cycle, whereas the phosphorus electrode in 1-ethyl-3-methylimidazolium bis(fluorosulfonyl)amide (EMI-FSA) showed a low capacity of only 110 mA h g−1. It was revealed that disintegration of the electrode after cycling was effectively suppressed by applying Py1MEM-FSA instead of an organic electrolyte including propylene carbonate (PC), and that a surface layer induced by the decomposition of EMI-FSA hindered Na-insertion into the active material layer. The performance obtained in Py1MEM-FSA was very superior to that in PC. We applied for the first time a closed-system fire-resistance test to the ionic liquid electrolyte for quantitatively evaluating its non-flammability. The Py1MEM-FSA-based electrolyte exhibited an excellent fire resistance in comparison with the PC-based organic electrolyte, which can be an advantage for realizing a Na-ion battery with a high-energy density and a high safety.
出版者
ESG
資料タイプ
学術雑誌論文
外部リンク
ISSN・ISBN
1452-3981
掲載誌名
International Journal of Electrochemical Science
最新掲載誌名
International Journal of Electrochemical Science
10
12
開始ページ
10132
終了ページ
10144
発行日
2015-11-04
著者版フラグ
出版社版
著作権表記
© 2015 The Authors. Published by ESG (www.electrochemsci.org). This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution license (http://creativecommons.org/licenses/by/4.0/).
掲載情報
International Journal of Electrochemical Science. 2015, 10(12), 10132-10144
部局名
工学部・工学研究科
言語
英語