There is provided an electrolytic solution comprising a chain carbonate (I) represented by the formula (I): wherein Rf1 is a fluorine-containing ether group (Ia) having CF3 at its end; Rf2 is a fluorine-containing ether group or a fluorine-containing alkyl group, and an electrolyte salt (II), and the electrolytic solution is excellent in flame retardance, low temperature characteristics, withstand voltage and compatibility with a hydrocarbon solvent and high in solubility of an electrolyte salt.