Active material, nonaqueous electrolyte battery and battery pack

摘要

According to one embodiment, an active material includes a monoclinic systemβ-type titanium composite oxide. The monoclinic systemβ-type titanium composite oxide includes a first element including at least one of Mo and W and satisfies the following formula (1): B>A  (1) In the formula, A is an intensity of a peak which is derived from (110) plane of the monoclinic systemβ-type titanium composite oxide in a wide-angle X-ray diffraction pattern. B is an intensity of a peak which is derived from (002) plane of the monoclinic systemβ-type titanium composite oxide in the wide-angle X-ray diffraction pattern.