NOVELTY - A nonaqueous electrolyte secondary battery comprises shrinkage suppression layer formation part (3a) where suppression shrinkage layer is formed in surface of separator, shrinkage suppression layer non-formation part (3b) where suppression shrinkage layer is not formed, positive electrode collector exposure part which is provided in surface of positive electrode collector, and negative electrode collector exposure part which is provided in surface of negative electrode collector.    USE - A nonaqueous electrolyte secondary battery, e.g. lithium ion battery or polymer battery for drive power supply of movement information terminals, e.g. mobile telephone, notebook personal computer, and personal digital assistant (PDA), power tool power supplies, and vehicle mounted power supply of electric vehicle or hybrid vehicle.    ADVANTAGE - Improves reliability by reducing electric potential of positive electrode. Suppresses shrinkage of separator at high temperature.    DETAILED DESCRIPTION - A nonaqueous electrolyte secondary battery comprises negative electrode with negative electrode active material layer containing negative electrode active material on surface of negative electrode collector consisting of electroconductive metal foil, positive electrode with positive electrode active material layer containing positive electrode active material on surface of positive electrode collector consisting of electroconductive metal foil, separator (3) containing olefin type polymer as main material which is arranged among two positive and/or negative poles, nonaqueous electrolyte, positive electrode current collection tab which is attached to positive electrode collector, negative electrode current collection tab which is attached to negative electrode collector, shrinkage suppression layer formation part (3a) where suppression shrinkage layer is formed in surface of separator, shrinkage suppression layer non-formation part (3b) where suppression shrinkage layer is not formed, positive electrode collector exposure part which is provided in surface of positive electrode collector, and negative electrode collector exposure part which is provided in surface of negative electrode collector.    DESCRIPTION OF DRAWING(S) - The drawing shows a front view of the separator.    Separator (3)    Shrinkage suppression layer formation part (3a)    Shrinkage suppression layer non-formation part (3b)