A nonaqueous electrolyte battery (10, 21) comprising: a positive electrode; a negative electrode comprising a negative electrode active material layer comprising particles of a niobium-and-titanium-containing composite oxide; a separator layer provided between the positive electrode and the negative electrode, the separator layer comprising insulating particles; an intermediate region provided between the negative electrode active material layer and the separator layer, the intermediate region comprising a carbonaceous material; and a gel nonaqueous electrolyte, wherein at least a part of the gel nonaqueous electrolyte is held in the separator layer and the intermediate region, the nonaqueous electrolyte battery (10, 21) satisfies a volume ratio V A /V B of 5 or more, where V A is a volume of the intermediate region, and V B is an average volume of gaps among the particles of the niobium-and-titanium-containing composite oxide in the negative electrode active material layer, the volume ratio V A /V B being obtained as the area ratio S A /S B, wherein the areas S A and S B are determined from a cross-sectional SEM image in which an intermediate region and a region being adjacent to the intermediate region are present in view, using the method described in the section "[Method for Calculating Volume Ratio V A /V B]" of the specification, wherein the negative electrode active material layer comprises a recessed part which faces the separator layer, the intermediate region is provided in the recessed part; and wherein a part of the separator layer is in contact with a surface of the negative electrode active material layer. a positive electrode; a negative electrode comprising a negative electrode active material layer comprising particles of a niobium-and-titanium-containing composite oxide; a separator layer provided between the positive electrode and the negative electrode, the separator layer comprising insulating particles; an intermediate region provided between the negative electrode active material layer and the separator layer, the intermediate region comprising a carbonaceous material; and a gel nonaqueous electrolyte, wherein at least a part of the gel nonaqueous electrolyte is held in the separator layer and the intermediate region, the nonaqueous electrolyte battery (10, 21) satisfies a volume ratio V A /V B of 5 or more, where V A is a volume of the intermediate region, and V B is an average volume of gaps among the particles of the niobium-and-titanium-containing composite oxide in the negative electrode active material layer, the volume ratio V A /V B being obtained as the area ratio S A /S B, wherein the areas S A and S B are determined from a cross-sectional SEM image in which an intermediate region and a region being adjacent to the intermediate region are present in view, using the method described in the section "[Method for Calculating Volume Ratio V A /V B]" of the specification, wherein the negative electrode active material layer comprises a recessed part which faces the separator layer, the intermediate region is provided in the recessed part; and wherein a part of the separator layer is in contact with a surface of the negative electrode active material layer.