A method for fabricating a laminate-type secondary battery, comprising: setting a laminated-film exterior package member as an insert in a mold, the laminated-film exterior package member accommodating cell elements (2, 3, 4); and integrally forming a bead-shaped edge protector in a peripheral edge of the laminated-film exterior package member by molding a hot melt resin material such that the hot melt resin material surrounds an end edge of the laminated-film exterior package member and both opposite surfaces (5a, 5b) of the laminated-film exterior package member in a vicinity of the end edge, wherein a compressed air is introduced between a mold surface defining a cavity of the mold and a surface of a hot melt resin layer formed of the hot melt resin material after starting to fill or inject the hot melt resin material into the cavity and before a temperature of the hot melt resin material becomes equal to or lower than a softening point thereof, wherein introduction of the compressed air is carried out by blowing the compressed air in a same direction as a direction in which ejector pins are projected from a part of the mold surface defining the cavity, wherein the direction in which the compressed air is blown is aligned with a direction in which the edge protector formed of the hot melt resin material is pressed onto one of the opposite surfaces of the laminated-film exterior package member or another of the opposite surfaces thereof, and wherein a plurality of ejector pins are arranged to be exposed to the mold surface defining the cavity and spaced apart from each other at a predetermined pitch in a longitudinal direction of the edge protector to be molded, and compressed air blowing holes respectively formed to open to the mold surface between respective adjacent two of the ejector pins, and wherein the compressed air is simultaneously blown from the compressed air blowing holes. setting a laminated-film exterior package member as an insert in a mold, the laminated-film exterior package member accommodating cell elements (2, 3, 4); and integrally forming a bead-shaped edge protector in a peripheral edge of the laminated-film exterior package member by molding a hot melt resin material such that the hot melt resin material surrounds an end edge of the laminated-film exterior package member and both opposite surfaces (5a, 5b) of the laminated-film exterior package member in a vicinity of the end edge, wherein a compressed air is introduced between a mold surface defining a cavity of the mold and a surface of a hot melt resin layer formed of the hot melt resin material after starting to fill or inject the hot melt resin material into the cavity and before a temperature of the hot melt resin material becomes equal to or lower than a softening point thereof, wherein introduction of the compressed air is carried out by blowing the compressed air in a same direction as a direction in which ejector pins are projected from a part of the mold surface defining the cavity, wherein the direction in which the compressed air is blown is aligned with a direction in which the edge protector formed of the hot melt resin material is pressed onto one of the opposite surfaces of the laminated-film exterior package member or another of the opposite surfaces thereof, and wherein a plurality of ejector pins are arranged to be exposed to the mold surface defining the cavity and spaced apart from each other at a predetermined pitch in a longitudinal direction of the edge protector to be molded, and compressed air blowing holes respectively formed to open to the mold surface between respective adjacent two of the ejector pins, and wherein the compressed air is simultaneously blown from the compressed air blowing holes.