Authors
Usui, Hiroyuki Department of Chemistry and Biotechnology, Graduate School of Engineering, Tottori University / Center for Research on Green Sustainable Chemistry, Tottori University Tottori University Researchers KAKEN Search Researchers
Domi, Yasuhiro Department of Chemistry and Biotechnology, Graduate School of Engineering, Tottori University / Center for Research on Green Sustainable Chemistry, Tottori University Tottori University Researchers KAKEN Search Researchers
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 Tottori University Researchers KAKEN Search Researchers
Keywords
Na-ion battery
Anode materials
Tin phosphide (Sn4P3)
Ionic liquid electrolyte
Intermediate temperature
Abstract
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.
Publisher
Wiley‐VCH Verlag GmbH & Co. KGaA, Weinheim
Content Type
Journal Article
Link
ISSN・ISBN
23656549
Journal Title
ChemistrySelect
Volume
3
Issue
29
Start Page
8462
End Page
8467
Published Date
2018-08-01
Publisher-DOI
Text Version
Author
Rights
© 2018 Wiley‐VCH Verlag GmbH & Co. KGaA, Weinheim
Citation
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
Department
Faculty of Engineering/Graduate School of Engineering
Language
English