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Effect of zwitterions on electrochemical properties of oligoether-based electrolytes

Suematsu, Mitsutake, Yoshizawa-Fujita, Masahiro, Zhu, Haijin, Forsyth, Maria, Takeoka, Yuko and Rikukawa, Masahiro 2015, Effect of zwitterions on electrochemical properties of oligoether-based electrolytes, Electrochimica Acta, vol. 175, Special issue : Polymer Electrolytes Selection of papers from the 14th International Symposium (ISPE-14) 24-29 August 2014, Geelong, VIC, Australia, pp. 209-213, doi: 10.1016/j.electacta.2014.12.067.

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Title Effect of zwitterions on electrochemical properties of oligoether-based electrolytes
Author(s) Suematsu, Mitsutake
Yoshizawa-Fujita, Masahiro
Zhu, HaijinORCID iD for Zhu, Haijin orcid.org/0000-0001-6352-7633
Forsyth, MariaORCID iD for Forsyth, Maria orcid.org/0000-0002-4273-8105
Takeoka, Yuko
Rikukawa, Masahiro
Journal name Electrochimica Acta
Volume number 175
Season Special issue : Polymer Electrolytes Selection of papers from the 14th International Symposium (ISPE-14) 24-29 August 2014, Geelong, VIC, Australia
Start page 209
End page 213
Total pages 5
Publisher Elsevier
Place of publication Amsterdam, The Netherlands
Publication date 2015-09-01
ISSN 0013-4686
Keyword(s) Polymer electrolyte
Zwitterion
Oligoether
Electrochemical window
Lithium-ion battery
Summary Solid polymer electrolytes show great potential in electrochemical devices. Poly(ethylene oxide) (PEO) has been studied as a matrix for solid polymer electrolytes because it has relatively high ionic conductivity. In order to investigate the effect of zwitterions on the electrochemical properties of poly(ethylene glycol) dimethyl ether (G5)/lithium bis(fluorosulfonyl) amide (LiFSA) electrolytes, a liquid zwitterion (ImZ2) was added to the G5-based electrolytes. In this study, G5, which is a small oligomer, was used as a model compound for PEO matrices. The thermal properties, ionic conductivity, and electrochemical stability of the electrolytes with ImZ2 were evaluated. The thermal stabilities of all the G5-based electrolytes with ImZ2 were above 150 °C, and the ionic conductivity values were in the range of 0.8–3.0 mS cm−1 at room temperature. When the electrolytes contained less than 5.5 wt% ImZ2, the ionic conductivity values were almost the same as that of the electrolyte without ImZ2. The electrochemical properties were improved with the incorporation of ImZ2. The anodic limit of the electrolyte with 5.5 wt% ImZ2 was 5.3 V vs. Li/Li+, which was over 1 V higher than that of G5/LiFSA.
Language eng
DOI 10.1016/j.electacta.2014.12.067
Field of Research 030604 Electrochemistry
Socio Economic Objective 850602 Energy Storage (excl. Hydrogen)
HERDC Research category C1 Refereed article in a scholarly journal
ERA Research output type C Journal article
Copyright notice ©2014, Elsevier
Free to Read? Yes
Persistent URL http://hdl.handle.net/10536/DRO/DU:30069721

Document type: Journal Article
Collections: Institute for Frontier Materials
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Every reasonable effort has been made to ensure that permission has been obtained for items included in DRO. If you believe that your rights have been infringed by this repository, please contact drosupport@deakin.edu.au.