Battery pack including connection plate, electronic device and vehicle

A battery pack, comprising:

• a plurality of battery modules disposed in a front-to-rear direction, wherein each of the plurality of battery modules includes:
• a plurality of battery cells arranged in a horizontal direction and having electrode terminals respectively at upper and lower portions thereof;
• a module housing configured to have an inner space in which the battery cells are accommodated;
• and
• a connection plate including a contact portion at an upper or lower portion of the plurality of battery cells and having a plurality of connection terminals formed in a portion thereof and respectively electrically contacted and connected to the electrode terminals at the plurality of battery cells, and a connection portion bent at least once from one end of the contact portion to extend in at least one direction among an upper direction, a lower direction, the front-to-rear direction so that the bent and extending region of the connection portion is on a left or right outer wall of the module housing to contact a part of a connection plate of another battery module,
• wherein each connection plate of each respective battery module includes:
• a first connection plate having a plate shape and located at the upper portion of the plurality of battery cells, the first connection plate including a first contact portion having the connection terminal electrically contacted and connected to the electrode terminal at the upper portion of the battery cell, and a first connection portion bent from a front or rear end of the first contact portion to extend in the lower direction and bent from a left or right end of the bent and extending region to extend in the front-to-rear direction;
• and
• a second connection plate having a plate shape and located at the lower portion of the plurality of battery cells, the second connection plate including a second contact portion having the connection terminal electrically contacted and connected to the electrode terminal at the lower portion of the battery cell, and a second connection portion bent from a left or right end of the second contact portion to extend in the upper direction so that the bent and extending region is contacted and connected to a portion of the first connection portion of the first connection plate of an adjacent battery module, and
• wherein each module housing includes:
• fixing holes at left and right outer sides thereof;
• and
• fixing tubes configured to extend in the upper direction to be inserted into the fixing holes.