The application relates to the technical field of
energy storage devices, and discloses a small industrial and commercial
energy storage device, which comprises a cabinet body, two symmetrical partition racks fixed in the cabinet body, a placing area arranged between the two partition racks, an air inlet area arranged between the partition racks and the inner wall of the cabinet body, a placing rack, a heat dissipation
assembly and an air inlet control
assembly, the placing rack is arranged in the placing area, two groups of object placing racks are symmetrically arranged in the placing rack, a plurality of object placing racks are equidistantly arranged in each group of object placing racks, an
energy storage assembly is arranged between every two object placing racks, the heat dissipation assembly is arranged in each object placing rack, the air inlet control assembly is arranged in the partition rack, and an air supply assembly is arranged in the air inlet area. Through the technical scheme, the problem that, in the prior art, the unified heat dissipation structure cannot guarantee the effective heat dissipation of part of battery packs due to the long heat dissipation path of the part of battery packs in a group of batteries, thereby affecting the normal use of the whole device, is solved.