The invention provides an electrolyte solution capable of improving the high-temperature storage characteristics and cycle characteristics of an electrochemical device. The electrolyte solution contains at least one selected from the group consisting of a compound represented by the following formula (1-1) (wherein Rf111s are the same as or different from each other and are each a C2-C4 fluorinated alkenyl group), a compound represented by the following formula (1-2) (wherein R121 is a C1-C4 alkyl group; and Rf121 is a C2-C4 fluorinated alkenyl group), and a compound represented by the following formula (1-3) (wherein Rf131 is a C1-C3 fluorinated alkyl group; and R131 is a C6-C12 aryl group).
本发明提供了一种能够改善电
化学装置的高温存储特性和循环特性的电解质溶液。该电解质溶液含有至少一种选自由下式(1-1)代表的化合物(其中 Rf111s 彼此相同或不同,且各自为 C2-C4
氟化烯基)、下式(1-2)代表的化合物(其中 R121 为 C1-C4 烷基;和 Rf121 是 C2-C4
氟化烯基),以及下式(1-3)代表的化合物(其中 Rf131 是 C1-C3
氟化烷基;和 R131 是 C6-C12 芳基)。