| abstract |
PROBLEM TO BE SOLVED: To provide an electrolytic solution having a high withstand voltage and high electric conductivity and an electric device using the same. A quaternary ammonium salt represented by the formula (1), an electrolytic solution containing the quaternary ammonium salt, and an electrochemical device using the electrolytic solution. (Wherein, R 1 to R 3 represents a linear or branched alkyl group having 1 to 3 carbon atoms, R 4 represents a methoxymethyl group, ethoxymethyl group, a propoxymethyl group or isopropoxymethyl group. X − represents PF 6 − .) [Selection] Figure 1 |