ELECTROLYTE, AND ELECTROCHEMICAL DEVICE AND SECONDARY BATTERY WHICH USE SAME

Provided are an electrolytic solution that enables improvement in durability of an electrochemical device and reduction of a resistance increase ratio thereof, and an electrochemical device and a secondary battery using the same. An electrolytic solution comprising at least one compound represented by the following general formula (1) : Rf1OLi (1)wherein Rfl is a fluorinated alkyl group having 1 to 5 carbon atoms.