Exterior for Secondary Battery and Apparatus and Method for Manufacturing Exterior for Secondary Battery

Disclosed are an exterior for a secondary battery and an apparatus and method for manufacturing the exterior for the secondary battery. According to one aspect of the present invention, a method for manufacturing an exterior for a secondary battery comprises: a first step of preparing a sheet and a mold in which a recess part (I) is formed; a second step of locating the sheet so that a portion of the sheet faces the recess part (I); and a third step of supplying a fluid from the side of the mold toward the recess part (I) to form a forming part having a shape corresponding to that of the recess part (I) in an area of the sheet, which is provided on the recess part (I).