Abstract: When inserting film armored battery into space between movable plates, tab-shaped terminal projecting from side edge of outer packaging body is reliably guided into space. Guide member disposed at an upper position of movable plates is provided with guide surface portion tapered toward counter-insertion direction. In guide surface portion, relative to side edge of terminal on the side of insertion direction, a portion corresponding to terminal base portion close to outer packaging body is relatively projected toward counter-insertion direction in comparison with a portion corresponding to terminal tip portion far from outer packaging body. Terminal is thereby contacted to guide surface portion in a sliding manner from terminal base portion having a small deformation and is corrected to the shape before the deformation.

Abstract: A manufacturing method of a secondary battery includes a first sealing process that stores a power generation element inside an exterior body formed by overlapped exterior films and that seals the exterior body at a first sealing part, the power generation element being arranged with a space from at least a part of the first sealing part, a conditioning process that performs conditioning, an hole forming process that forms a degassing hole between the first sealing part and the power generation element, and a second sealing process that seals the degassing hole, in which the hole forming process includes a pressing process that presses, from both sides of the exterior body, a portion where the degassing hole is formed in the exterior body so that the overlapped exterior films are brought into contact with each other, before the degassing hole is formed in the exterior body.

Abstract: When inserting film armored battery into space between movable plates, tab-shaped terminal projecting from side edge of outer packaging body is reliably guided into space. Guide member disposed at an upper position of movable plates is provided with guide surface portion tapered toward counter-insertion direction. In guide surface portion, relative to side edge of terminal on the side of insertion direction, a portion corresponding to terminal base portion close to outer packaging body is relatively projected toward counter-insertion direction in comparison with a portion corresponding to terminal tip portion far from outer packaging body. Terminal is thereby contacted to guide surface portion in a sliding manner from terminal base portion having a small deformation and is corrected to the shape before the deformation.

Abstract: A manufacturing method of a secondary battery includes a first sealing process that stores a power generation element inside an exterior body formed by overlapped exterior films and that seals the exterior body at a first sealing part, the power generation element being arranged with a space from at least a part of the first sealing part, a conditioning process that performs conditioning, an hole forming process that forms a degassing hole between the first sealing part and the power generation element, and a second sealing process that seals the degassing hole, in which the hole forming process includes a pressing process that presses, from both sides of the exterior body, a portion where the degassing hole is formed in the exterior body so that the overlapped exterior films are brought into contact with each other, before the degassing hole is formed in the exterior body.