Nonaqueous electrolyte battery

A nonaqueous electrolyte battery comprising:

• an electrode group comprising a positive electrode comprising a positive electrode layer comprising nickel in a quantity of 12 wt % or more but 34 wt % or less and a negative electrode comprising a negative electrode layer comprising titanium in a quantity of 39 wt % or more but 51 wt % or less and a portion of which is opposed to the positive electrode layer;
• and
• a nonaqueous electrolyte held by the electrode group,
• wherein a following relation (1) is satisfied:
• −0.07≦(DA−DC)×S/B≦0.05 (1)
• wherein the B [Ah] is a discharge capacity of the nonaqueous electrolyte battery, the B being obtained by charging the nonaqueous electrolyte battery up to a maximum usage voltage with a constant current at a rate of 0.05 C and at 25° C., and then charging the nonaqueous electrolyte battery with a constant voltage until a current value becomes 0.01 C, and then discharging the nonaqueous electrolyte battery up to a final discharge voltage at a rate of 0.05 C;
• the S [cm2] is an area of the portion of the negative electrode layer opposed to the positive electrode layer;
• the DC [mAh/cm2] is a discharge capacity of the positive electrode, the DC being obtained by discharging the positive electrode from a fully charged state up to 3.0 V (vs. Li/Li+) at 25° C. and at a rate of 0.05 C;
• and
• the DA [mAh/cm2] is a discharge capacity of the negative electrode, the DA being obtained by discharging the negative electrode from a fully charged state up to 2.0 V (vs. Li/Li+) at 25° C. and at a rate of 0.05 C.