Provided is a cartridge frame which is inserted between a plurality of unit battery cells stacked in the fabrication of a modularized battery and a battery module having the same. The cartridge frame according to one aspect of the present disclosure includes an inter-cell separation plate with a planar shape inserted between adjacent unit battery cells to separate the adjacent unit battery cells, and a sidewall part extending in a direction perpendicular to the planar surface of the inter-cell separation plate at an edge other than an edge of a direction in which an electrode terminal of the battery cell is drawn, among edges of the inter-cell separation plate, wherein for at least a portion of the sidewall part, an inner sidewall coming into contact with a side surface of the unit battery cell is made from metal, and an outer sidewall facing the inner sidewall is made from plastic.