| abstract |
According to the embodiment, a nonaqueous electrolyte battery including a positive electrode, a negative electrode, and a nonaqueous electrolyte is provided. The positive electrode, Li 1-x Mn 2- yz Al y M z O 4 (-0.1 ≦ x ≦ 1,0.20 ≦ y ≦ 0.35,0 ≦ z ≦ 0.1, M is Mg, Ca , Ti, V, Cr, Fe, Co, Ni, Cu, Zn, Zr, Nb, Mo, and Sn). The negative electrode is composed of a first oxide represented by Li 4 + a Ti 5 O 12 (−0.5 ≦ a ≦ 3), Al, Co, Cr, Cu, Fe, Mg, Ni, Zn, and Zr. An active material containing a second oxide of at least one element selected from the group consisting of: The negative electrode active material contains the second oxide in an amount of 300 ppm to 5000 ppm with respect to the weight of the first oxide. |