Electrolyte solution for electrochemical device, and electrochemical device

Abstract

An electrolyte solution for electrochemical device contains: an electrolyte solution comprising a cyclic carbonate solvent containing 1.0 mol/L to 1.6 mol/L of LiPF6 as an electrolyte; an oxalate complex salt of lithium whose additive quantity relative to the electrolyte solution accounts for 1.0 percent by weight to 3.0 percent by weight; and a straight-chain carbonate whose additive quantity relative to the electrolyte solution accounts for 1.0 percent by weight to 9.0 percent by weight.

Dependencies are inferred from the claim text.