The utility model relates to the technical field of
energy storage, in particular to a modularized
lithium ion battery energy storage cabin which comprises a cabin body, a battery chamber and an equipment chamber are arranged in the cabin body, a partition plate is arranged between the battery chamber and the equipment chamber, and the battery chamber comprises a plurality of battery racks distributed in the length direction of the cabin body. Two groups of battery clusters can be placed on each battery rack along the height direction of the cabin body, each group of battery clusters comprises a plurality of battery modules, and all the battery clusters are equally divided into two sets of battery stacks; a high-
voltage box guide rail for mounting a high-
voltage box is arranged below each battery rack, and a high-
voltage box cover plate is arranged between the battery rack and the high-voltage box guide rail of the high-voltage box; the equipment chamber is located on one side of the cabin body in the length direction, the side, located on the cabin body in the length direction, of the equipment chamber is open, and the equipment chamber is divided into a liquid
cooling chamber and an electrical chamber in the width direction of the cabin body. The
modular design of one rack with two clusters and one cabin with two stacks is adopted, the spatial
layout is reasonable, and the expansibility, compatibility and environmental applicability are high.