| abstract |
A non-aqueous electrolyte and a non-aqueous electrolyte secondary battery capable of realizing excellent cycle characteristics are provided. A non-aqueous electrolyte includes a non-aqueous solvent, an electrolyte salt, and a general formula (I). [Chemical 1] (X, Y and Z in the formula are elements selected from Group 16 elements, and any one of X, Y and Z is different. R1 and R2 are organic groups, and R1 and R2 are the same. At least one of R1 and R2 represents a group 17 element or an organic group in which some or all of the hydrogen atoms are substituted with a group 17 element, provided that X = Y = Z = oxygen And a compound represented by the above). The nonaqueous electrolyte secondary battery includes a positive electrode, a negative electrode, and a nonaqueous electrolyte solution containing at least one of a nonaqueous solvent, an electrolyte salt, and a compound represented by the general formula (I). [Selection figure] None |