Physical-Chemical Characterization of Binary Mixtures of 1-Butyl-1-methylpyrrolidinium Bis{(trifluoromethyl)sulfonyl}imide and Aliphatic Nitrile Solvents as Potential Electrolytes for Electrochemical Energy Storage Applications

Alex R. Neale, Christoph Schütter, Patrick Wilde, Peter Goodrich, Christopher Hardacre, Stefano Passerini, Andrea Balducci, Johan Jacquemin

Research output: Contribution to journalArticlepeer-review

19 Citations (Scopus)
355 Downloads (Pure)

Abstract

In the scope of improving the energy and power densities of electrochemical double layer capacitors (EDLCs), the development of high performance electrolytes with enhanced operative voltages is imperative. The formulation of mixtures containing ionic liquids with organic molecular solvents is an important strategy in the pursuit of developing highly electrochemically stable and safe materials while retaining fast transport properties for high power applications. In this work, we report on the physical-chemical investigations into binary mixtures containing the ionic liquid 1-butyl-1-methylpyrrolidinium bis{(trifluoromethyl)sulfonyl}imide with one mononitrile solvent, butyronitrile, and two dinitrile solvents, glutaronitrile and adiponitrile, as potential electrolytes for EDLCs. The thermal, volumetric and transport properties of the binary mixtures are investigated as functions of the electrolyte composition and temperature. Furthermore, the electrolyte composition which exhibits the highest conductivity for each of the binary mixtures was determined, and its electrochemical stability is reported using a glassy carbon macrodisk electrode.
Original languageEnglish
Pages (from-to)376-390
Number of pages15
JournalJournal of Chemical and Engineering Data
Early online date21 Dec 2016
DOIs
Publication statusEarly online date - 21 Dec 2016

Keywords

  • Ionic liquid
  • Aliphatic nitrile solvents
  • Binary mixtures
  • Volumetric properties
  • Transport properties

Fingerprint Dive into the research topics of 'Physical-Chemical Characterization of Binary Mixtures of 1-Butyl-1-methylpyrrolidinium Bis{(trifluoromethyl)sulfonyl}imide and Aliphatic Nitrile Solvents as Potential Electrolytes for Electrochemical Energy Storage Applications'. Together they form a unique fingerprint.

Cite this