Nonaqueous electrolytic solution and nonaqueous secondary battery using the same

A nonaqueous electrolytic solution comprising an electrolyte salt dissolved in an organic solvent is disclosed. The nonaqueous electrolytic solution contains a silicon compound represented by formula (I): wherein R 1 represents an alkenyl group having 2 to 10 carbon atoms; R 2 and R 3 each represent an alkyl group having 1 to 10 carbon atoms, an alkoxy group having 1 to 10 carbon atoms, an alkenyl group having 2 to 10 carbon atoms or a halogen atom; and X represents a halogen atom.