ABSTRACT This paper will review the current development and progress of the room temperature molten salt (RTMS) based on the AlCl3/l-methyl-3-ethylimidazolium chloride system. Both the fundamental and application aspects using RTMS as the medium for electrodeposition of metals, alloys and for high energy secondary lithium battery application have been covered and discussed. A survey on the structure and physical-chemical parameters of the various molten salt media based on the AlCl3/MEIC and related systems as revealed by studies using NMR, X-ray, FTIR, electrochemical methods and other techniques is conducted. The effect of the composition and structure of the melt on the solubility of metallic salts, electrochemical nucleation of alloy phases, and chemical interaction occurred at the interface will be reported and discussed. Future areas of development and problems facing the application of RTMS will be assessed and discussed.
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