Battery pack containing electrode terminal connecting device

An electrode terminal connecting device to electrically connect a plurality of battery modules to each other, wherein the electrode terminal connecting device comprises:

• a conductive connecting member coupled to electrode terminals of the battery modules to electrically connect the electrode terminals of the battery modules to each other, the conductive connecting member being provided at opposite sides thereof with steps;
• a shut-off cutter mounted to an outside of the conductive connecting member to shut off the circuit of the conductive connecting member when impact is applied to the battery pack in a longitudinal direction of the battery pack;
• and
• an insulative sheathing member mounted to the conductive connecting member in a state in which the insulative sheathing member surrounds the conductive connecting member, the insulative sheathing member being open at a rear thereof excluding regions thereof corresponding to the opposite side steps of the conductive connecting member, the insulative sheathing member having a side wall protruding a predetermined height from an outer circumference of the conductive connecting member.