UNIT CELL PACK OF ENERGY STORAGE SYSTEM

摘要

Disclosed is a unit cell pack of an energy storage system for rapidly cooling secondary cells therein. The unit cell pack according to the present invention includes: a first cell module including cell cartridges sequentially stacked and a plurality of cells in which every two cells are mounted on the upper surface of the each cell cartridge; a second cell module which is adjacent to the first cell module and has the same elements as the first cell module; a cell housing which encloses the first and second cell modules and includes air inflow window covers and air outflow window covers facing each other; and a fan duct disposed on the air outflow window covers of the cell housing, wherein the lower surfaces of the respective cell cartridges define air guide grooves disposed in parallel with each other, and the air guide grooves are aligned with the air inflow window covers and the air outflow window covers in one of the first and second cell modules to form straight air passages.