Pyrrolidinium containing Ionic liquid electrolytes for Li-based batteries

Thumbnail Image
molecules-25-06002-v2.pdf(13.04 MB)
Published version
McGrath, Louise M.
Rohan, James F.
Journal Title
Journal ISSN
Volume Title
Research Projects
Organizational Units
Journal Issue
Ionic liquids are potential alternative electrolytes to the more conventional solid-state options under investigation for future energy storage solutions. This review addresses the utilization of IL electrolytes in energy storage devices, particularly pyrrolidinium-based ILs. These ILs offer favorable properties, such as high ionic conductivity and the potential for high power drain, low volatility and wide electrochemical stability windows (ESW). The cation/anion combination utilized significantly influences their physical and electrochemical properties, therefore a thorough discussion of different combinations is outlined. Compatibility with a wide array of cathode and anode materials such as LFP, V2O5, Ge and Sn is exhibited, whereby thin-films and nanostructured materials are investigated for micro energy applications. Polymer gel electrolytes suitable for layer-by-layer fabrication are discussed for the various pyrrolidinium cations, and their compatibility with electrode materials assessed. Recent advancements regarding the modification of typical cations such a 1-butyl-1-methylpyrrolidinium, to produce ether-functionalized or symmetrical cations is discussed.
Anode , Cathode , Electrolyte , Energy storage , Ionic liquids , Lithium ion batteries , Lithium metal batteries , Polymer gel electrolyte , Pyrrolidinium
McGrath, L. M. and Rohan, J. F. (2020) 'Pyrrolidinium Containing Ionic Liquid Electrolytes for Li-Based Batteries', Molecules, 25(24), 6002 (33 pp). doi: 10.3390/molecules25246002
Link to publisher’s version