POUCH TYPE SECONDARY BATTERY AND BATTERY MODULE

A pouch-type secondary battery according to an embodiment of the present invention for achieving the above object includes: an electrode assembly in which electrodes and separators are stacked; a pouch-type battery case comprising a cup part configured to accommodate the electrode assembly therein, wherein the battery case includes: a first case and a second case, of which at least one comprises a cup part; a folding part configured to integrally connect the first case to the second case; and a bat ear protruding outward from a portion of each of opposing ends of the folding part, wherein the bat ear has a length of 1.5 mm or less.