NOVELTY - The battery has a positive electrode stacked with a negative electrode (50) that is provided with a negative electrode active material layer (54) and a separator. An electrolyte containing additive forms a resistance film on the negative active material layer. The separator is equipped with a surface-modification part (56) in which surface wettability is modified in a center part along permeation direction, where length (L) of the active material layer along permeation direction is set to specific value and ratio between permeation length (Lp) and length of the layer lies between 0.2 and 0.7.    USE - Non-aqueous electrolyte secondary battery i.e. lithium ion battery, for use as a driving power supply for a vehicle (claimed) e.g. electric vehicle (EV) and hybrid vehicle (HEV) such as plug-in hybrid car (PHEV). Can also be used as a lithium-polymer battery.    ADVANTAGE - The separator is equipped with the surface-modification part in which the surface wettability is modified in the center part along the permeation direction, so that the wettability can be improved with respect to the electrolyte by uniformly distributing the additive component in the resistance film formed in the negative electrode surface, thus suppressing segregation of the electrolytic additive to ends of the negative electrode active material layer, and hence forming a solid electrolyte (SEI) film stably along width direction of the negative electrode active material layer homogeneously with lower consumption of a lithium source, while extending life of the battery.    DETAILED DESCRIPTION - The additive is selected from a group consisting of lithium bisoxalate borate, vinylene carbonate, vinyl ethylene carbonate, fluoroethylene carbonate and difluoro lithium phosphate. The length of the negative active material layer along the permeation direction is set to 100 mm. An INDEPENDENT CLAIM is also included for a method for manufacturing a non-aqueous electrolyte secondary battery.    DESCRIPTION OF DRAWING(S) - The drawing shows a top view of a surface-modification part of a negative electrode.    Length of negative active material layer (L)    Permeation length (Lp)    Negative electrode (50)    Uncoated part (53)    Negative electrode active material layer (54)    Surface-modification part (56)