著者
Usui, Hiroyuki Department of Chemistry and Biotechnology, Graduate School of Engineering, Tottori University / Center for Research on Green Sustainable Chemistry, Tottori University 研究者総覧 KAKEN
Domi, Yasuhiro Department of Chemistry and Biotechnology, Graduate School of Engineering, Tottori University / Center for Research on Green Sustainable Chemistry, Tottori University 研究者総覧 KAKEN
Nishida, Haruka Department of Chemistry and Biotechnology, Graduate School of Engineering, Tottori University / Center for Research on Green Sustainable Chemistry, Tottori University
Yamaguchi, Kazuki Department of Chemistry and Biotechnology, Graduate School of Engineering, Tottori University / Center for Research on Green Sustainable Chemistry, Tottori University
Yamagami, Ryota Course of Chemistry and Biotechnology, Department of Engineering, Graduate School of Sustainability Science, Tottori University / Center for Research on Green Sustainable Chemistry, Tottori University
Sakaguchi, Hiroki Department of Chemistry and Biotechnology, Graduate School of Engineering, Tottori University / Center for Research on Green Sustainable Chemistry, Tottori University 研究者総覧 KAKEN
キーワード
Na-ion battery
Anode materials
Tin phosphide (Sn4P3)
Ionic liquid electrolyte
Intermediate temperature
抄録
Charge-discharge performances of Sn4P3 anodes for Na‐ion battery were evaluated in an ionic liquid electrolyte using N‐methyl‐N‐propylpyrrolidinium bis(fluorosulfonyl)amide at intermediate temperatures of 60 and 90 oC. At these temperatures, the anode showed extra capacities based on the full sodiation of Sn in a potential range below 0.2 V vs. Na+/Na because its slow kinetics was improved by elevating operation temperature. Under the current density of 0.1 A g-1 (0.08 C), the Sn4P3 anode at 60 oC exhibited a large capacity of 750 mA h g-1 at the 120th cycle and high Coulombic efficiencies above 99% after the 5th cycle. On the other hand, the efficiency degraded at 90 oC by the electrolyte decomposition. At 60 oC, the anode attained an excellent rate performance with capacity of 250 mA h g-1 even at 3 A g-1 (2.65 C). These results demonstrated the promising operation at intermediate temperature at around 60 oC for Sn4P3 anode in ionic liquid electrolyte.
出版者
Wiley‐VCH Verlag GmbH & Co. KGaA, Weinheim
資料タイプ
学術雑誌論文
外部リンク
ISSN
23656549
掲載誌名
ChemistrySelect
3
29
開始ページ
8462
終了ページ
8467
発行日
2018-08-01
出版者DOI
著者版フラグ
著者版
著作権表記
© 2018 Wiley‐VCH Verlag GmbH & Co. KGaA, Weinheim
掲載情報
This research was published by Wiley.: USUI, Hiroyuki, et al. Enhanced Performance of Sn4P3 Electrode Cycled in Ionic Liquid Electrolyte at Intermediate Temperature as Na‐Ion Battery Anode. ChemistrySelect, 2018, 3.29: 8462-8467. https://doi.org/10.1002/slct.201801517
部局名
工学部・工学研究科
言語
英語