The battery module is another important part of the battery system in addition to the cell (cell). It can be said that the module is a bridge connecting the cell and the battery pack (pack). It not only has many characteristics of the cell, but also is related to the many characteristics of the pack combine the two organically through chemical, mechanical, thermal, electronic and electrical aspects to form a battery system with the required functions.

After the aging of the single battery is completed, it enters the stage of module combination. Before the combination, it is necessary to first screen, that is, test the capacity, dynamic internal resistance and voltage of the single battery, and try to select batteries with the same parameters for matching.

In general, the module design is simple and simple, and if it is complicated, it also contains a lot of design details that require in-depth verification. The module plays a role in connecting the previous and the next, so the two-way requirements of cell and pack need to be taken into account when designing the module. The elements in the two directions are used as design input, and the design output must match both directions.