Battery module and battery pack including the battery module

A battery pack comprising:

• a pack case in which a space is formed and which includes pack vents through which an inside and an outside of the pack case are in fluid communication with each other;
• and
• a battery module disposed in the pack case,
• wherein the battery module includes:
• a plurality of battery cells, each of the battery cells including battery cell terminals and a battery cell vent;
• a reinforcement frame including a plurality of reinforcement frame connection vents in fluid communication with the battery cell vents and a reinforcement frame discharge vent in fluid communication with the reinforcement frame connection vents;
• and
• a busbar module that electrically connects the battery cell terminals.