All-solid-state secondary battery

An all-solid-state secondary battery comprising:

• a laminated body in which a positive electrode layer having a positive electrode current collector layer and a positive electrode active material layer, and a negative electrode layer having a negative electrode current collector layer and a negative electrode active material layer are laminated via a solid electrolyte layer;
• a first external terminal;
• and
• a second external terminal,
• wherein the laminated body has a first side surface parallel to a laminating direction and a second side surface parallel to the laminating direction and perpendicular to the first side surface,
• the first external terminal and the second external terminal are connected to the first side surface, and
• the laminated body has a warp that is warped in the laminating direction and satisfies Equations (1) and (2):
• 0.5°≤((A1+A2)/2)≤5° (1)
• A1≤8.0° (2),
• where A1 is an angle of the warp of the laminated body when seen from a side of the first side surface, and A2 is an angle of the warp of the laminated body when seen from a side of the second side surface.