NOVELTY - A nonaqueous electrolyte battery has positive electrode, negative electrode having porous structure, and nonaqueous electrolyte. A pore diameter distribution of negative electrode as determined by mercury porosimetry, includes peak having a mode diameter of 0.01-0.2 mu m, and peak having a mode diameter of 0.003-0.02 mu m. The volume of pores having diameter of 0.01-0.2 mu m is 0.05-0.5 mL per g of negative electrode excluding weight of collector. The volume of pores having diameter of 0.003-0.02 mu m is 0.0001-0.02 mL per g of negative electrode excluding weight of current collector.    USE - Nonaqueous electrolyte battery is used for battery pack for vehicle (all claimed). Uses include but are not limited to digital camera, hybrid electric automobile, power-assisted bicycle, etc.    ADVANTAGE - The nonaqueous electrolyte battery has high energy density, thermal stability, productivity, current characteristics and charging and discharging cycle characteristics.    DETAILED DESCRIPTION - A nonaqueous electrolyte battery comprises a positive electrode, a negative electrode and a nonaqueous electrolyte. The negative electrode has a current collector and a negative electrode layer supported by the current collector. The negative electrode layer contains a titanium-based oxide having a lithium ion insertion potential of more than 0.4V (vs. Li/Li+). The negative electrode has a porous structure. A pore diameter distribution of negative electrode as determined by a mercury porosimetry, includes a peak having a mode diameter falling within range of 0.01-0.2 mu m, and a peak having a mode diameter falling within a range of 0.003-0.02 mu m. The volume of pores having diameter of 0.01-0.2 mu m as determined by mercury porosimetry is 0.05-0.5 mL per g of negative electrode excluding the weight of the current collector. The volume of pores having diameter of 0.003-0.02 mu m as determined by mercury porosimetry is 0.0001-0.02 mL per g of negative electrode excluding the weight of the current collector.    DESCRIPTION OF DRAWING(S) - The drawing shows the cross-sectional view of nonaqueous electrolyte battery.    Band-like positive electrode terminal (1)    Band-like negative electrode terminal (2)    Wound electrode group (6)    Case (7)