| abstract |
Provided is a lithium ion secondary battery that obtains excellent initial discharge capacity and low temperature discharge capacity. A lithium ion secondary battery includes a positive electrode, a negative electrode including a carbon material, a cyclic carbonate, a chain carbonate, and a compound represented by the following formula (1) in a non-aqueous electrolyte solution in an amount of 0.1%. A nonaqueous electrolytic solution in which an electrolyte is dissolved in a nonaqueous solvent containing ˜7 mass%. [In the formula (1), R 1 , R 2 , R 3 and R 4 are each independently hydrogen, halogen, an alkyl group having 1 to 6 carbon atoms, or an alkyl having 1 to 6 carbon atoms having halogen in the side chain. It is a group. ] [Selection figure] None |