NONAQUEOUS ELECTROLYTE SECONDARY BATTERY

A nonaqueous electrolyte secondary battery includes: a separator including a polyolefin porous film; a porous layer containing a polyvinylidene fluoride-based resin; a positive electrode plate; and a negative electrode plate, wherein a sum of interface barrier energies being a predetermined value, the polyolefin porous film having a puncture strength of a predetermined value, the value represented by Formula (1) below being not less than 0.00 and not more than 0.54, |1− Formula (1), and the polyvinylidene fluoride-based resin containing an α-form polyvinylidene fluoride-based resin in an amount of not less than 35.0 mol %.