Abstract

Classical density functional theory is used to study the capacitance enhancing issue of electrical double-layer using aqueous-like electrolyte and ionic liquid+solvent mixture (ILSM) as supporting electrolyte, respectively. The polar organic solvent and water-like solvent are described by an electric dipole dimer model. This study focuses on capacitance enhancing of counter-ion sized electrode pore (CISEP) relative to large pore capacitance and relation with electrode voltage applied, counter-ion relative size, solvent weight percentage in the bulk and its polarity depicted by electric dipole moment.

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