ALL-SOLID-STATE BATTERY AND METHOD OF PRODUCING ALL-SOLID-STATE BATTERY

An all-solid-state battery in which a positive electrode active material layer, a solid electrolyte layer, a negative electrode active material layer, and a negative electrode current collector are laminated in this order on at least one surface of a positive electrode current collector, wherein the negative electrode active material layer contains a negative electrode active material, and the filling rate of the negative electrode active material layer is less than 80%.