The invention belongs to the technical field of 
lithium ion batteries and particularly relates to a 
control system for controlling the placement time of a 
battery cell, comprising a scanning device, adisplay device, a storage module and a 
processing module; the scanning device is configured to scan and acquire data of placement time of the 
battery cell; the 
display device is configured to displaythe data of the placement time of the 
battery cell; the storage module is configured to store the data of the placement time of the battery 
cell; the 
processing module is configured to process the data of the placement time of the battery 
cell; the scanning device, the 
display device, and the storage module are all connected with the 
processing module. Compared with the prior art, by arranging acontrol 
system in the invention, the data of the placement time of the battery 
cell can be accurately recorded, instead of manually recording the data of the placement time of the battery cell, thereby improving the production efficiency of the battery cell as well as avoiding the occurrence of a manual recording error, the battery cell with placement 
timeout is prevented from entering the next process, which plays a preventing role and improves the safety performance of the battery cell.