Battery module, battery pack including the battery module, and vehicle including the battery module

A battery pack comprising:

• a pack case;
• a module case accommodated in the pack case, the module case being configured to accommodate a plurality of battery cells therein and having a through-hole formed in one surface thereof;
• a cooling plate coupled to the one surface of the module case and having a flow path in which a coolant is accommodated, the cooling plate being configured such that the coolant is discharged through the through-hole when a thermal event of the battery cells occurs;
• a sealing pad disposed between the module case and the cooling plate and configured to seal at least a portion of a space between the module case and the cooling plate;
• and
• a coupler configured to couple the sealing pad and the module case such that the sealing pad comes into close contact with the module case.