Surface Film Formation on Graphite in Propylene Carbonate Solution Containing Lithium Bis(oxalate)Borate

초록

In this study, the surface film formation reactions occurring on highly oriented pyrolytic graphite (HOPG) in propylene carbonate (PC) containing lithium bis(oxalato) borate (LiBOB) were investigated. In-situ electrochemical atomic force microscopy analysis revealed that a thin film with a thickness of similar to 5 nm was formed on the HOPG basal plane after the first potential cycle. There was no evidence of co-intercalation of the solvent molecules. The cyclic voltammetry analysis revealed that the nature of the surface film formed in 1 mol kg(-1) of LiBOB in PC was significantly different from that formed in an ethylene carbonate-based solution.

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