NONAQUEOUS ELECTROLYTE BATTERY, BATTERY PACK AND VEHICLE

According to one approach, a nonaqueous electrolyte battery (10) is provided. The nonaqueous electrolyte battery (10) includes a positive electrode (11), a negative electrode (12) including a negative electrode active material layer (12a), a separator layer (13), an intermediate region (14), and a gel nonaqueous electrolyte. The separator layer (13) and the intermediate region (14) hold at least a part of the gel nonaqueous electrolyte. The nonaqueous electrolyte battery (10) satisfies a volume ratio V/Vof 5 or more. Vis a volume of the intermediate region (14). Vis an average volume of gaps (15) among the particles (20) of the niobium-and-titanium-containing composite oxide in the negative electrode active material layer (12a).