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Physical properties of high Li-ion content N-propyl-N-methylpyrrolidinium bis(fluorosulfonyl)imide based ionic liquid electrolytes

Yoon, Hyungook, Best, Adam S., Forsyth, Maria, MacFarlane, Douglas R. and Howlett, Patrick C. 2015, Physical properties of high Li-ion content N-propyl-N-methylpyrrolidinium bis(fluorosulfonyl)imide based ionic liquid electrolytes, Physical chemistry chemical physics, vol. 17, no. 6, pp. 4656-4663, doi: 10.1039/c4cp05333h.

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Title Physical properties of high Li-ion content N-propyl-N-methylpyrrolidinium bis(fluorosulfonyl)imide based ionic liquid electrolytes
Author(s) Yoon, Hyungook
Best, Adam S.
Forsyth, MariaORCID iD for Forsyth, Maria orcid.org/0000-0002-4273-8105
MacFarlane, Douglas R.
Howlett, Patrick C.ORCID iD for Howlett, Patrick C. orcid.org/0000-0002-2151-2932
Journal name Physical chemistry chemical physics
Volume number 17
Issue number 6
Start page 4656
End page 4663
Total pages 8
Publisher Royal Society of Chemistry
Place of publication Cambridge, Eng.
Publication date 2015
ISSN 1463-9084
Summary Electrolytes based on bis(fluorosulfonyl)imide (FSI) with a range of LiFSI salt concentrations were characterized using physical property measurements, as well as NMR, FT-IR and Raman spectroscopy. Different from the behavior at lower concentrations, the FSI electrolyte containing 1 : 1 salt to IL mole ratio showed less deviation from the KCl line in the Walden plot, suggesting greater ionic dissociation. Diffusion measurements show higher mobility of lithium ions compared to the other ions, which suggests that the partial conductivity of Li(+) is higher at this higher composition. Changes in the FT-IR and Raman peaks indicate that the cis-FSI conformation is preferred with increasing Li salt concentration.
Language eng
DOI 10.1039/c4cp05333h
Field of Research 030604 Electrochemistry
030605 Solution Chemistry
091205 Functional Materials
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 ©2015, Royal Society of Chemistry
Persistent URL http://hdl.handle.net/10536/DRO/DU:30075399

Document type: Journal Article
Collection: Institute for Frontier Materials
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