| abstract |
Disclosed are an electrolyte and an electrochemical device that are excellent in durability and improve the reliability of an electrochemical device. An imidazolium salt represented by the formula (1) and an electrolytic solution for an electrochemical device containing the imidazolium salt. [R 1 , R 2 , R 3 and R 4 are the same or different and each represents hydrogen, methyl or ethyl, n is an integer of 3 to 10, and X is an anion. ] [Selection figure] None |