| abstract |
To provide a non-aqueous electrolyte battery having high initial efficiency, excellent initial capacity, and excellent safety during overcharge, and a non-aqueous electrolyte solution that provides the same. A non-aqueous electrolyte solution containing an electrolyte and a non-aqueous solvent, wherein the non-aqueous electrolyte solution is further represented by the formula (I) (wherein R 1 to R 5 are independently hydrogen, halogen or non- A substituted or halogen-substituted hydrocarbon group having 1 to 20 carbon atoms, and R 6 and R 7 are each independently a hydrocarbon group having 1 to 12 carbon atoms, among R 1 to R 7 At least two of them may be taken together to form a ring, provided that formula (I) is (A) and (B): (A) At least one of R 1 to R 5 is a halogen or an unsubstituted or halogen-substituted hydrocarbon group having 1 to 20 carbon atoms. (B) The total number of carbon atoms of R 1 to R 7 is 3 or more and 20 or less. And a non-aqueous electrolyte battery including the non-aqueous electrolyte solution. [Selection figure] None |