NOVELTY - A nonaqueous electrolyte battery (B1) comprises: a positive electrode containing a positive electrode layer including a metal compound, where the metal compound containing lithium and at least one metal selected from cobalt, nickel, manganese, iron and vanadium; a negative electrode containing a negative electrode layer including a negative electrode active material having a lithium (Li) ion insertion potential of not less than 0.4 V (versus Li/Li+); and a nonaqueous electrolyte.    USE - In battery pack useful in vehicle (claimed).    ADVANTAGE - The nonaqueous electrolyte battery is excellent in the charge-discharge cycle characteristics under low temperature of not greater than -20degreesC; has improved high output performance; is improved battery in respect of weight reduction, reliability for a long time in a high-temperature environment and heat dissipation properties. The battery pack permits improving the charge-discharge cycle characteristics even under a low temperature environment of -30degreesC and thus, can be suitably mounted to the vehicle and can be used for the emergency power supply of the electronic device, particularly, it is desirable to mount the battery pack to a vehicle.    DETAILED DESCRIPTION - A nonaqueous electrolyte battery comprises: a positive electrode containing a positive electrode layer including a metal compound where the metal compound containing lithium and at least one metal selected from cobalt, nickel, manganese, iron and vanadium; a negative electrode containing a negative electrode layer including a negative electrode active material having a Li ion insertion potential not less than 0.4 V (versus Li/Li+); and a nonaqueous electrolyte. The specific surface area (Sn) (m2/g) of the negative electrode layer as determined by the BET method is of 0.5 - 50 m2/g. The ratio of Sn/specific surface area (Sp) (m2/g) of the positive electrode layer as determined by the BET method is of 5 - 100. The ratio of thickness (Lp) (microns) of the positive electrode layer and the thickness (Ln) (microns) of the negative electrode layer is of 0.5 - less than 1. An INDEPENDENT CLAIM is included for a battery pack comprising nonaqueous electrolyte batteries (B1).