Nonaqueous electrolyte battery containing a negative electrode of lithium-titanium composite oxide, battery pack and vehicle

Abstract

A nonaqueous electrolyte battery, containing a case and provided in the case, a positive electrode containing at least one selected from the group consisting of spinel type lithium-manganese-nickel composite oxide and lithium phosphate oxide having an olivine structure, a negative electrode and a nonaqueous electrolyte. The negative electrode comprises a lithium-titanium composite oxide, wherein a crystallite diameter of the lithium-titanium composite oxide is not larger than 6.9×102 {acute over (Å)}. The lithium-titanium composite oxide comprises: rutile TiO2; anatase TiO2; Li2TiO3; and a lithium titanate having a spinel structure. A main peak intensity relative to lithium titanate set at 100, as determined by X-ray diffractometry, of each of lithium titanate having a spinel structure, the rutile TiO2, the anatase TiO2 and Li2TiO3 is not larger than 7.

Dependencies are inferred from the claim text.