abstract |
According to one embodiment, there is provided a nonaqueous electrolyte battery (20). The negative electrode (4) of the battery (20) includes a negative electrode active material which can absorb and release lithium ions at a negative electrode potential of 0.4 V (V.S. Li/Li + ) or more. The battery (20) satisfying the following equations (I) and (II): 1 ¤ Q ¢ 2 / Q ¢ 1 0.5 ¤ C / A ¤ 0.999 |