Lithium doped and undoped reactions for tin have been investigated in 1-butyl-1-methylpyrrolidinium bis(trifluoromethylsulfonyl)amide (BMPTFSA) containing 0.1 M LiTFSA with some glymes. Lithium doped and undoped for tin were found to be possible in the ionic liquid electrolyte in both absence and presence of glymes. The interfacial resistance for lithium doped and undoped reactions in the ionic liquid electrolyte was decreased by addition of 0.2 M glymes probably due to the coordination of the glymes to Li+. It was suggested that the interfacial resistance is strongly affected by the coordination environment of Li+ in the ionic liquid electrolyte.
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