BATTERY CASE FORMING APPARATUS, AND BATTERY CASE MANUFACTURING METHOD USING SAME

The present invention relates to a battery case shaping apparatus including a punch configured to press a laminate sheet in order to shape a battery case, a die in which an accommodation portion is formed, the accommodation portion having a size corresponding to an electrode assembly receiving portion that is shaped by the punch, a holder configured to fix the outer periphery of the laminate sheet, and an elastic separator located under the punch in order to prevent direct contact between the punch and the laminate sheet, wherein an elongation region of the laminate sheet is extended to prevent the laminate sheet from being locally excessively elongated.