Pouch-Type Battery Case and Pouch Type Secondary Battery

A pouch-type secondary battery comprising:

• an electrode assembly of stacked electrodes and separators;
• a pouch-type battery case comprising a cup part configured to accommodate the electrode assembly therein,
• wherein the pouch-type battery case comprises:
• a first case and a second case, of which at least one comprises the cup part;
• and
• a folding part configured to fold and connect the first case to the second case,
• wherein the cup part comprises a plurality of die edges connecting a plurality of outer walls forming a periphery of the cup part to a side or degassing part,
• wherein at least one of the die edges is rounded to define a curvature radius that corresponds to 1/20 to ⅙ of a depth of the cup part,
• wherein an outer wall is inclined at an inclination angle of 90° to 95° from the bottom part.