To prevent degradation of the battery property.

The battery comprises a positive electrode 4 in which a positive electrode mixture layer 9 is formed on a positive electrode current collector 8, a negative electrode 5 in which a negative electrode mixture layer 12 is formed on a negative electrode current collector 11, and a solid electrolyte 6. Since the positive electrode mixture layer 9 and/or the negative electrode mixture layer 12 have at least one or more cut-out parts gong from these surfaces toward the thickness direction, the solid electrolyte 6 is diffused throughout the whole part of the positive electrolyte mixture layer 9 and/or the negative electrode mixture layer 12 along these cut-out parts, and make small the electric resistance of the positive electrode 4 and/or the negative electrode and prevent degradation of the battery property.