SOLID-STATE BATTERY

A solid-state battery that includes one or more battery constituent units each including a positive electrode layer, a negative electrode layer, and a solid electrolyte layer interposed between the positive electrode layer and the negative electrode layer, in which the positive electrode layer and the negative electrode layer have a central portion and an outer edge portion surrounding the central portion in a plan view of the solid-state battery, and in at least one of the positive electrode layer and the negative electrode layer: 1.05≤(maximum value of film thickness of outer edge portion)/(average film thickness of central portion)0.35.