NONAQUEOUS ELECTROLYTE SECONDARY BATTERY

A nonaqueous electrolyte secondary battery according to one embodiment of the present disclosure comprises a positive electrode, a negative electrode (12) and a nonaqueous electrolyte solution; the negative electrode (12) comprises a negative electrode collector (40) and a negative electrode active material layer (42) that is provided on the negative electrode collector (40); the negative electrode active material layer (42) contains, as negative electrode active materials, graphite particles A and graphite particles B; the graphite particles A have an internal void fraction of 5% or less; the graphite particles B have an internal void fraction of from 8% to 20%; if the negative electrode active material layer (42) is halved in the thickness direction, a region (42b) on the half closer to the outer surface contains more graphite particles A than a region (42a) on the half closer to the negative electrode collector; and the nonaqueous electrolyte solution contains a phosphoric acid ester compound represented by general formula (I).(In the formula, each of R1, R2 and R3 independently represents an alkyl group, an alkenyl group or an alkynyl group; and at least one of R1, R2 and R3 represents an alkenyl group or an alkynyl group.)