Non-aqueous electrolyte and non-aqueous electrolyte secondary batteries

Abstract

To provide a non-aqueous electrolyte with improved voltage resistance performance.SOLUTION: A non-aqueous electrolyte contains a non-aqueous solvent, an electrolyte salt, and a silane compound expressed by the following formula (1) (where, R1, R2, and R3 are independently an alkyl group with a carbon number of 1 to 20 or an alkenyl group with a carbon number of 2 to 20, R4, R5, and R6 are independently a hydrogen atom or an alkyl group with a carbon number of 1 to 20, and n is an integer of 1 to 10). The content of the non-aqueous solvent in the non-aqueous electrolyte is 60.00 mass% to 95.50 mass%, and the content of the silane compound is 0.01 mass% to 3.00 mass%.SELECTED DRAWING: Figure 3