Battery module and battery pack

A battery pack, comprising:

• a case, and
• a plurality of battery modules, each of the battery modules comprising:
• a battery cell arrangement structure, wherein the battery cell arrangement structure comprises a first battery cell arrangement structure and a second battery cell arrangement structure, the first battery cell arrangement structure and the second battery cell arrangement structure both comprise a plurality of battery cells arranged along a horizontal direction, and the first battery cell arrangement structure and the second battery cell arrangement structure are arranged along a vertical direction;
• a plurality of bus bars connected to the plurality of battery cells, wherein the plurality of battery cells are electrically connected by means of the plurality of bus bars to form a first output electrode of the battery module and a second output electrode of the battery module, and the first output electrode of the battery module and the second output electrode of the battery module are arranged at a same end of the battery module along the horizontal direction;
• and
• a fixing plate, wherein the fixing plate is located on a side of the battery cell arrangement structure along the horizontal direction, the fixing plate is provided with an insulating portion, the insulating portion comprises a protrusion, the protrusion is arranged on a surface of the fixing plate facing away from the battery cell arrangement structure, the protrusion protrudes in a direction away from the battery cell arrangement structure, and the protrusion is located between the first output electrode of the battery module and the second output electrode of the battery module to separate the first output electrode of the battery module from the second output electrode of the battery module;
• wherein a surface with the largest area of each the battery cell in the first battery cell arrangement structure is disposed to a surface with the largest area of each the battery cell in the corresponding second battery cell arrangement structure along the vertical direction, the fixing plate is arranged on a side of the first battery cell arrangement structure and a side of the second battery cell arrangement structure, electrode terminals of the first battery cell arrangement structure and electrode terminals of the second battery cell arrangement structure are arranged on a side of the battery module along a width direction, and are arranged on the side of the first battery cell arrangement structure and the side of the second battery cell arrangement structure.