Air-cooled battery pack

The invention relates to the technical field of energy storage equipment, and particularly discloses an air-cooled battery pack which comprises a box body with an accommodating cavity, a battery management unit arranged in the accommodating cavity, and a battery cell assembly arranged on one side of the battery management unit in a first direction, the battery cell assembly comprises two battery cell modules arranged at intervals along a second direction perpendicular to the first direction, a first air duct formed between the two battery cell modules, and a fan arranged on one side, far away from the battery management unit, of the first air duct; the box body comprises two first side walls located on the two sides of the containing cavity in the second direction respectively and an upper cover located above the containing cavity, first ventilation openings corresponding to the battery cell assemblies are formed in the two first side walls, and a second ventilation opening is formed in the position, close to