DISCONNECTION-PROOF BATTERY MODULE

The present disclosure provides: a structure of a pouch type battery cell provided with electrode leads protruding from lengthwise ends thereof, respectively, wherein the pouch type battery cell includes a margin capable of extending the electrode leads by deforming as end portions of the electrode leads are tensioned; and a structure of a battery module with a battery cell stack accommodated therein formed by stacking at least one of above-described battery cells.