NOVELTY - The nonaqueous electrolyte battery useful in vehicle e.g. hybrid electric cars, comprises a negative electrode including a layer containing a negative electrode active material and a negative electrode current collector, which retains the negative electrode layer, a positive electrode including a layer containing a positive electrode active material and a positive electrode current collector, which retains the positive electrode layer, and a nonaqueous electrolyte. The positive electrode current collector has a total area and specific capacitance.    USE - The nonaqueous electrolyte battery is useful in vehicle (claimed) such as two- to four-wheel hybrid electric cars and power-assisted bicycles and useful as power sources of digital camera.    ADVANTAGE - The nonaqueous electrolyte battery has improved energy density and excellent charge-discharge cycle performance under a high temperature environment, and is capable of obtaining a high capacity recovery rate when kept under the high temperature environment.    DETAILED DESCRIPTION - The nonaqueous electrolyte battery useful in vehicle e.g. hybrid electric cars, comprises a negative electrode including a layer containing a negative electrode active material and a negative electrode current collector, which retains the negative electrode layer, a positive electrode including a layer containing a positive electrode active material and a positive electrode current collector, which retains the positive electrode layer, and a nonaqueous electrolyte. The positive electrode current collector has a total area and specific capacitance, which are larger than the negative electrode current collector. The negative and positive electrode current collectors satisfy an equation of 1 less than Ap/An less than or equal to 1.2, where An is greater than 500 cm2 and Ap denotes the total area of the negative and positive electrode current collectors respectively. An amount of the positive electrode layer per a surface of the positive electrode current collector is 20-200 g/m2. The specific capacitance of the positive and negative electrode current collectors is 20-150 mu F/cm2 and less than 20 mu F/cm2 respectively. An average particle diameter of the negative electrode active material is less than or equal to 1 mu m. The negative electrode active material has a lithium ion absorption potential of greater than or equal to 0.4 V.    DESCRIPTION OF DRAWING(S) - The diagram shows a partial cut-away view of nonaqueous electrolyte battery.    Positive electrode terminal (1)    Negative electrode terminal (2)    Outer casing member (8)    Heat seal parts (8a, 8b, 8c)    Laminate type electrode group. (9)