Open AccessMono-and di-cationic Ionic Liquids: Synthesis, Characterization and Applications in Batteries
Author(s) -
Lizhen Mao
Publication year - 2021
Publication title -
petroleum and petrochemical engineering journal
Language(s) - English
Resource type - Journals
ISSN - 2578-4846
DOI - 10.23880/ppej-16000288
Subject(s) - ionic liquid , cationic polymerization , ionic conductivity , electrochemistry , electrolyte , viscosity , conductivity , materials science , lithium (medication) , chemical engineering , inorganic chemistry , analytical chemistry (journal) , chemistry , electrode , polymer chemistry , chromatography , organic chemistry , composite material , catalysis , medicine , engineering , endocrinology
In this paper, a mono-cationic ionic liquid (MIL) ([BMIM] [NTF 2 ]) and two di-cationic ionic liquids (DILs) ([C 5 (MIM) 2 ][NTF 2 ] 2 and [C 6 (MIM) 2 ][NTF 2 ] 2 ) were synthesized by two-step method, and the conductivity, viscosity and electrochemical stability of the three ionic liquids were systematically studied and analyzed. The results show that the conductivity of MIL is better than that of DILs, while the viscosity and the electrochemical stability of DILs are higher than those of MIL. The viscosity of the DILs decreases with the increasing length of the group within the DILs. Finally, the application of MIL as the electrolyte in the lithium-oxygen battery was studied.