abstract |
PROBLEM TO BE SOLVED: To realize a non-aqueous electrolyte secondary battery excellent in charge capacity after high rate discharge. A non-aqueous electrolyte secondary battery is a porous layer containing an inorganic filler having a thermal expansion coefficient of 11 ppm / ° C. or less and a resin, and a surface temperature rising rate of 0.93 ° C./second or more. , 1.25 ° C./sec or less, a positive electrode, a negative electrode, and a nonaqueous electrolytic solution containing a predetermined additive in an amount of 0.5 ppm or more and 300 ppm or less. [Selection diagram] Figure 1 |