Mixtures of ionic liquids for low temperature electrolytes

► Air-stable, hydrophobic molten salts. ► Low temperature conductivity in ionic liquid mixtures. ► Development of non-flammable and non-volatile electrolytes. ► Realization of high performance electrochemical energy storage devices. The conductivity, viscosity and the self-diffusion coefficient of p...

Full description

Saved in:
Bibliographic Details
Published in:Electrochimica acta 2012-11, Vol.82, p.69-74
Main Authors: Kunze, Miriam, Jeong, Sangsik, Appetecchi, Giovanni B., Schönhoff, Monika, Winter, Martin, Passerini, Stefano
Format: Article
Language:English
Subjects:
Binary mixtures
Capacitors
Chemistry
Coefficients
Conductivity
Electrochemistry
Electrolytes
Exact sciences and technology
General and physical chemistry
IL mixtures
Ionic liquids
Lithium batteries
PFG-NMR
Supercapacitors
Viscosity
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:► Air-stable, hydrophobic molten salts. ► Low temperature conductivity in ionic liquid mixtures. ► Development of non-flammable and non-volatile electrolytes. ► Realization of high performance electrochemical energy storage devices. The conductivity, viscosity and the self-diffusion coefficient of pyrrolidinium-based ILs (ILs), N-butyl-N-methyl pyrrolidinium-bis(trifluoromethanesulfonyl)imide (Pyr14TFSI) and N-methyl-N-propyl pyrrolidinium-bis(fluorosulfonyl)imide (Pyr13FSI), and their binary mixtures were investigated in order to better understand their behavior as electrolyte components in supercapacitor and lithium battery systems. The IL mixtures showed excellent low temperature properties far exceeding those of the pure IL materials. For example, at −40°C the conductivity of binary mixtures was found to be up to four orders of magnitude higher than that of the pure ILs.
ISSN:0013-4686
1873-3859
DOI:10.1016/j.electacta.2012.02.035