ALL-SOLID-STATE SECONDARY BATTERY

An all-solid-state secondary battery includes a laminated body in which a positive electrode layer and a negative electrode layer are laminated via a solid electrolyte layer, a first external terminal, and a second external terminal, 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 in the laminating direction satisfying Equations (1) and (2): 0.5°≤((1+2)/2)≤5° (1) 1≤8.0° (2)