Battery module having heat conduction pad

A battery module comprising:

• a plurality of cylindrical battery cells, each having electrode terminals respectively formed at an upper portion and a lower portion thereof;
• a module housing comprising an accommodation portion having a plurality of hollow structures in which the plurality of cylindrical battery cells are accommodated;
• a current collecting plate on an outer surface of the module housing and comprising a plurality of welding holes, such that each of the electrode terminals of the cylindrical battery cells are exposed to the outside through a respective one of the welding holes;
• a bus bar in contact with an outer surface of the current collecting plate, such that respective bus bar contact portions are disposed into respective ones of the welding holes to be in contact with respective ones of the electrode terminals to electrically connect the electrode terminals to the current collecting plate;
• and
• a heat conduction pad disposed outside the current collecting plate and comprising contact protrusion portions protruding and extending in a direction in which the electrode terminals are disposed, such that each contact protrusion portion is inserted into and disposed in a respective welding hole of the current collecting plate to be in direct contact with a respective bus bar contact portion,
• wherein the respective bus bar contact portion is between the respective electrode terminal and the respective contact protrusion portion.