Battery module, and battery pack and vehicle comprising the same

A battery module, comprising:

• a plurality of battery cells disposed to face each other and arranged side by side at least in a first direction;
• a module cover configured to accommodate the plurality of battery cells and formed to have at least one open side;
• and
• a pair of buffering members located between one side of a battery cell located at an outermost side in the first direction among the plurality of battery cells and a side of the module cover so that at least a part thereof is in contact with the sides of the battery cells and the module cover, respectively,
• wherein each buffering member is a leaf spring having at least one bent portion, and
• wherein each buffering member includes:
• a body provided in contact with the battery cell located at the outermost side among the battery cells;
• a first bent portion connected to one end of the body and having a bent shape, the first bent portion being at least partially in contact with the side of the module cover;
• and
• a second bent portion connected to the other end of the body and having a bent shape, the second bent portion being at least partially in contact with the side of the module cover and being spaced apart from the first bent portion, and
• wherein a pair of coupling grooves are formed at a lower plate of the module cover so that the module cover and each buffering member are coupled thereto in a sliding manner.