Negative electrode active material for nonaqueous electrolyte battery, method of producing the same, nonaqueous electrolyte battery and battery pack

A titanium oxide compound having a crystal structure of a monoclinic titanium dioxide and satisfying the following equation (I):

• d001≧6.223 Å (I)
• wherein d001 is the spacing of the (001) plane which is measured by the powder X-ray diffraction method using a Cu—Kα radiation source, and wherein
• the titanium oxide compound has a crystal structure which belongs to the space group C2/m,
• the titanium oxide compound is suitable as an active material in a negative electrode of a nonaqueous electrolyte battery,
• the titanium oxide compound has a particle form
• the titanium oxide compound has a BET specific surface area in the range of 6 to 200 m2/g;
• and
• the titanium compound satisfies the following equation (II):
• 0.39≦I(200)/I(001)≦0.5 (II)
• wherein I(001) is the peak intensity of the (001) plane and I(200) is the peak intensity of the (200) plane, which are measured by the powder X-ray diffraction method using a Cu—Kα radiation source.