NOVELTY - Nonaqueous electrolyte battery has container (2) obtained using laminate film. The container contains active material particles, positive electrode (3) containing coating of particles, negative electrode (4) containing metallic compound which occludes lithium ion, separator (5), and nonaqueous electrolyte containing lithium salt dissolved in mixed solvent containing primary nonaqueous solvent and secondary nonaqueous solvent containing nitrile group-containing ( gamma )butyrolactone having molecular weight of 40-100.    USE - Nonaqueous electrolyte battery is used for battery pack (claimed) for motor vehicle.    ADVANTAGE - The battery pack formed using nonaqueous electrolyte battery has excellent heat resistance and durability.    DETAILED DESCRIPTION - Nonaqueous electrolyte battery has container obtained using laminate film. The container contains active material particles having average particle diameter of 0.1-10 mu m, positive electrode containing coating of particles having average particle diameter of 60 nm or less and average thickness of 60 nm or less, negative electrode containing metallic compound which occludes lithium ion at 0.4 V, separator arranged between positive electrode and negative electrode, and nonaqueous electrolyte containing lithium salt dissolved in the 10-70 vol.% of mixed solvent containing primary nonaqueous solvent containing propylene carbonate and ethylene carbonate and secondary nonaqueous solvent containing nitrile group-containing ( gamma )butyrolactone having molecular weight of 40-100. At least one type of element chosen from magnesium, titanium, zirconium, barium, boron and carbon is contained on the surface of active material particles. The active material particles are of formula: LixM1yO2, LizM22wO4 or LisM3tPO4.    M1-M3=manganese, nickel, cobalt or iron;    x,z,s=0-1.1;and    y,w,t=0.8-1.1.    DESCRIPTION OF DRAWING(S) - The drawing shows the sectional view of the nonaqueous electrolyte battery.    Electrode group (1)    Container (2)    Positive electrode (3)    Negative electrode (4)    Separator (5)    Positive electrode lead (6)    Negative electrode lead (7)    Positive electrode electroconductive tab (8)    Negative electrode electroconductive tab (9)