Easy preparation of graphite-containing gel electrolytes using a gelator and characterization of their electrochemical properties

Cyclo(L-β-3,7-dimethyloctylasparaginyl-L-phenylalanyl) was used as a gelator to synthesize gel electrolytes using 1-butyl-3-methylimidazolium tetrafluoroborate, propylene carbonate (PC), and γ-butyrolactone in 1 M LiBF4. Gel strengths and thermal stabilities were studied with regard to the effect of graphite as a helper additive. Ionic conductivities, activation energies for ionic conductivity, and the electrochemical stabilities of the graphite-containing gel electrolytes were studied.