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|1. (WO2018107746) ELECTROLYTE AND SECONDARY BATTERY|
|Applicants:||CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
|Title:||ELECTROLYTE AND SECONDARY BATTERY|
An electrolyte and a secondary battery. The electrolyte comprises: an organic solvent; an electrolyte salt dissolved in the organic solvent; and an additive. The additive comprises an α- ketoester compound. The electrolyte comprises an α-ketoester compound which can improve the cycle performance and storage performance of the secondary battery and reduce the internal resistance of the secondary battery.