ELECTROLYTIC SOLUTION, ELECTROCHEMICAL DEVICE, LITHIUM-ION SECONDARY BATTERY, AND MODULE

The disclosure provides an electrolyte solution capable of improving the output characteristics of an electrochemical device at initial stage and after high-temperature storage. The electrolyte solution contains a compound represented by the following formula (1). In the formula (1), R101s are each individually an optionally fluorinated organic group; X101s are each individually a halogen atom, -Rc101, or -ORc101, wherein Rc101 is an alkyl group or an aryl group; p1 is an integer of 1 to 4; and q1 is an integer satisfying p1 + q1 = 4.