A battery module comprising: a plurality of battery cells; at least one cell cartridge configured to guide stacking of the plurality of battery cells and to mount therein at least one battery cell among the plurality of battery cells and comprises a first cartridge frame and a second cartridge frame combined to each other to accommodate the battery cell; each of the first and second cartridge frames (210, 260) comprises an edge frame (212, 262) configured to form edges of the cell cartridge and a cell container having a depth from the edge frame and configured to accommodate the battery cell; a pressure absorption sheet member provided between the battery cell and the cell cartridge, said battery cell comprising: an electrode assembly; a battery case including a case body configured to accommodate the electrode assembly, and a case sealing portion protruding from the case body; and electrode leads protruding from the case sealing portion of the battery case and connected to the electrode assembly, and wherein the sheet member is adhered with double sided adhesive tape or adhesive agent (152, 154) to the battery cell on a surface where the sheet member contacts the battery cell and is adhered to the cell cartridge on a surface where the sheet member contacts the cell cartridge, to fix the battery cell and the cell cartridge to each other via the sheet member, when the battery cell is mounted in the cell cartridge, at least two corners of the battery cell have a gap from the cell cartridge, the at least two corners of the battery cell are two corners of the case body in a protruding direction of the electrode leads, and the two corners of the case body are spaced apart from inner walls of the cell container (216, 266), which face each other, to have the gap in the cell container, and wherein each cell cartridge accommodates an upper battery cell fixed to the second cartridge frame via said sheet member and a lower battery cell fixed to the first cartridge frame via said sheet member, and the electrode leads protruding from said cell cartridge. a plurality of battery cells; at least one cell cartridge configured to guide stacking of the plurality of battery cells and to mount therein at least one battery cell among the plurality of battery cells and comprises a first cartridge frame and a second cartridge frame combined to each other to accommodate the battery cell; each of the first and second cartridge frames (210, 260) comprises an edge frame (212, 262) configured to form edges of the cell cartridge and a cell container having a depth from the edge frame and configured to accommodate the battery cell; a pressure absorption sheet member provided between the battery cell and the cell cartridge, said battery cell comprising: an electrode assembly; a battery case including a case body configured to accommodate the electrode assembly, and a case sealing portion protruding from the case body; and electrode leads protruding from the case sealing portion of the battery case and connected to the electrode assembly, and an electrode assembly; a battery case including a case body configured to accommodate the electrode assembly, and a case sealing portion protruding from the case body; and electrode leads protruding from the case sealing portion of the battery case and connected to the electrode assembly, and wherein the sheet member is adhered with double sided adhesive tape or adhesive agent (152, 154) to the battery cell on a surface where the sheet member contacts the battery cell and is adhered to the cell cartridge on a surface where the sheet member contacts the cell cartridge, to fix the battery cell and the cell cartridge to each other via the sheet member, when the battery cell is mounted in the cell cartridge, at least two corners of the battery cell have a gap from the cell cartridge, the at least two corners of the battery cell are two corners of the case body in a protruding direction of the electrode leads, and the two corners of the case body are spaced apart from inner walls of the cell container (216, 266), which face each other, to have the gap in the cell container, and wherein each cell cartridge accommodates an upper battery cell fixed to the second cartridge frame via said sheet member and a lower battery cell fixed to the first cartridge frame via said sheet member, and the electrode leads protruding from said cell cartridge.