Nonaqueous electrolytic solution and nonaqueous electrolyte battery using the same

摘要

An object of the invention is to provide nonaqueous electrolyte batteries having high initial efficiency, excellent initial capacity and excellent overcharge safety, and nonaqueous electrolytic solutions realizing such batteries. A nonaqueous electrolytic solution includes an electrolyte and a nonaqueous solvent, and further includes an aromatic compound represented by Formula (I) (in which R1 to R5 are independently hydrogen, a halogen, or an unsubstituted or halogen-substituted hydrocarbon group having 1 to 20 carbon atoms, R6 and R7 are independently a hydrocarbon group having 1 to 12 carbon atoms, at least two of R1 to R7 may be bonded together to form a ring, and Formula (I) satisfies at least one of the requirements (A) and (B): (A) at least one of R1 to R5 is a halogen, or an unsubstituted or halogen-substituted hydrocarbon group having 1 to 20 carbon atoms, (B) the total number of carbon atoms in R1 to R7 is 3 to 20). A nonaqueous electrolyte battery includes the nonaqueous electrolytic solution.

主权项

1. A nonaqueous electrolytic solution, comprising:
an electrolyte and a nonaqueous solvent, the nonaqueous electrolytic solution further comprising an aromatic compound represented by Formula (I): wherein: R1 to R5 are independently hydrogen, a halogen, or an unsubstituted or halogen-substituted hydrocarbon group having 1 to 20 carbon atoms; R6 and R7 are independently a hydrocarbon group having 1 to 12 carbon atoms, at least two of R1 to R7 may be bonded together to form a ring; and Formula (I) satisfies at least one of the requirements (A) and (B):
(A) at least one of R1 to R5 is a halogen, or an unsubstituted or halogen-substituted hydrocarbon group having 1 to 20 carbon atoms,(B) the total number of carbon atoms in R1 to R7 is 3 to 20.