Direct X-ray Evidence of Electrochemical Induced Intercalation of Substituted Alkylimidazolium and Lithium Cations into Graphite from Ambient-Temperature Ionic Liquids

摘要

It has been reported that various 1-ethyl-3-methyl-imidazolium (EMI~+) and 1,2-dimethyl-3-propyl-imidazolium (DMPI~+) salts can function not only as electrolytes,but also as the electrochemical intercalates in a simple battery (1,2).Also,it has been reported that these ionic liquids can function as the electrolytes in various types of lithium battery systems,including simple graphite based systems in which Li~+ and the imidazolium cation is reported to intercalate graphite.(3-6)