Battery

摘要

Provided is a battery, the power and durability of which can be increased. A battery includes a positive electrode, a negative electrode including a negative active material layer containing hardly-graphitizable carbon as a negative active material and an aqueous binder , a separator disposed between the positive electrode and the negative electrode, and a nonaqueous electrolyte. The negative active material layer has a density of not less than 0.81 g/cc and not more than 1.01 g/cc. The negative active material has a particle size D90 of not less than 1.9 µm and not more than 11.5 µm, the particle size D90 being a particle size at which the cumulative volume is 90% in the particle size distribution.