POUCH-TYPE BATTERY CASE AND SECONDARY BATTERY INCLUDING THE SAME

A pouch-type battery case according to an embodiment of the present invention may include: a cup part having a recessed shape; and a side disposed around at least a portion of the cup part. The cup part may include: a base surface; a plurality of circumferential surfaces; a plurality of die edges connecting the plurality of circumferential surfaces and the side to each other and formed to be rounded; and a plurality of thickness edges connecting the plurality of circumferential surfaces to each other and formed to be rounded.In the pouch-type battery case, when a curvature radius of each of the die edges is Rd, and a curvature radius of each of the thickness edges is Rt, a conditional expression: Rd ≤ Rt < 3*Rd is satisfied.