The present application relates to an electrolyte, an electrochemical device and an electronic device comprising the same. The electrolyte of the present application includes a cyclic N-containing sulfonyl-compound and at least one of vinylene carbonate, fluoroethylene carbonate, lithium tetrafluoroborate, lithium difluoro(oxalato)borate or lithium difluorophosphate. The electrolyte of the present application may further include a sulfur-oxygen double bond containing compound and a silicon-containing carbonate. Compared with the prior art, using the electrolyte provided by the present application can effectively improve the high-temperature storage, cycle performance and overcharge performance of an electrochemical device, such as a lithium-ion battery.
本申请涉及一种电解质、一种电
化学装置和一种包含该电解质的电子装置。本申请的电解液包括一种环状含 N-磺酰基化合物和
碳酸乙烯酯、
碳酸氟乙烯酯、四
氟硼酸锂、二
氟(
草酸)
硼酸锂或
二氟磷酸锂中的至少一种。本申请的电解质还可进一步包括含
硫氧双键化合物和含
硅碳酸盐。与现有技术相比,使用本申请提供的电解液可以有效提高
锂离子电池等电
化学装置的高温储能、循环性能和过充电性能。