| 摘要 |
PROBLEM TO BE SOLVED: To provide a nonaqueous electrolyte secondary battery whose resistance increase at a time of high-temperature storage is suppressed while keeping excellent battery characteristics and a manufacturing method of the same.SOLUTION: The manufacturing method of a nonaqueous electrolyte secondary battery includes steps of: preparing a positive electrode, a negative electrode, and a nonaqueous electrolyte; and storing the positive electrode, the negative electrode, and the nonaqueous electrolyte in a battery case. The nonaqueous electrolyte contains a fluorine atom containing supporting electrolyte and a benzothiophene oxide compound.SELECTED DRAWING: Figure 1 |
