Design Tips for Battery Modules

The definition of a battery module: a combination of connected sets of individual batteries. It includes a single cell, a frame for fixing a single cell, an electrical connection device between an individual cell, and may also include a temperature sensor, a voltage detection circuit, a management unit of the battery module, etc.

The system of battery modules varies, but they all have certain skills in design. All involve the safety of small modules and heat spread.

The basic principles of battery module product design are as follows:

(1) The battery module assembly tightness is moderate, each structural part has enough strength, to prevent deformation or damage due to the internal pressure of the battery, and to strictly avoid the movement of the battery in the vibration process, some batteries require a special single battery fixing device;

(2) The structural parts are easy for assembly and operation;

(3) Meet the power supply technical indicators of the used equipment used;

(4) For metal shell batteries, electric insulation between individual batteries or with the structural parts;

(5) Compact structure and according to the design requirements of the battery pack, so that heat from the battery to the receiving

(6) With the installation fixed position, so that the battery pack can be firmly fixed on the power supply system or the whole machine;

(7) The weight of the auxiliary parts is as low as possible, and the weight of the general module assembly parts should not be more than 30% of the total weight of the battery;

(8) Battery module is suitable for expansion, such as the module from 5 single battery combinations can be expanded to 10 battery combination modules;

(9) The conductive connection distance between batteries is as short as possible, reliable connection, and flexible connection is appropriate. The conductive capacity of each part of the conductive connection should meet the maximum overcurrent capacity requirements of the electrical equipment.

In addition, the module must achieve low internal resistance and less heat generation. The most important feature is: if the external short circuit, can be fused. In this respect, GCL has strengthened external learning in many ways and has its own patents.