Basic composition of the production line

Battery cell feeding and inspection station:

Automated feeding equipment, such as conveyor belts or robotic arms, 

are used to accurately transport the battery cells to the starting position 

of the production line. During the feeding process, a high-precision detection device 

is set up to quickly detect whether the appearance of the battery cell is damaged, 

whether the polarity is correct, and whether the key parameters of the battery cell, 

such as voltage and internal resistance, are within the qualified range. 

For example, the visual inspection system can identify defects such as scratches 

and bulges on the surface of the battery cell. Once an unqualified battery cell is found, it will be immediately 

removed and an alarm will be issued to ensure the quality of the battery cell entering the subsequent assembly process.

Pole piece welding station:

Advanced laser welding technology or ultrasonic welding technology is used to weld the positive 

and negative pole pieces of the battery cell to the connecting piece. Laser welding can achieve

 high-precision and high-speed welding, with a smooth and firm weld and a small heat-affected zone, 

which effectively guarantees the welding quality and the stability of the battery performance. During 

the welding process, the parameters of the welding equipment will be adjusted according to the specifications 

and materials of the battery cell, such as laser power, welding time, welding pressure, etc., to ensure the consistency and reliability of the welding.

Battery module assembly station:

The welded cells are combined into battery modules in a specific arrangement. This station is usually

 equipped with automated assembly equipment that can accurately locate the cells, install the module frame,

 end plates and side plates, and tighten them. For example, a robot arm is used to place the cells into the module 

frame one by one, and then the end plates and side plates are automatically installed and fixed by bolts 

or riveting processes to ensure the stability and integrity of the module structure.

BMS (battery management system) installation and testing station:

The BMS is installed on the battery module and a comprehensive electrical 

performance test and functional verification are performed. The BMS is the core control component of the battery pack, 

responsible for monitoring the battery's voltage, current, temperature and other parameters, and realizing

 the battery's overcharge, over-discharge, over-temperature protection and balance management functions. 

During the installation process, it is necessary to ensure that the connection between the BMS 

and the battery cell is reliable. The various functions of the BMS are strictly tested by professional testing equipment, 

such as simulating the battery charging and discharging process to detect whether the BMS can accurately monitor 

and control the battery status. Once the BMS is found to have a fault or abnormal function, it will be repaired or replaced in time.

Battery pack packaging station:

The assembled battery module and BMS are packaged to form a complete battery pack. 

The packaging material usually uses fireproof, waterproof and shock-resistant materials,

 such as aluminum alloy shell or high-strength plastic shell. During the packaging process, 

it is necessary to ensure that the shell is well sealed and can effectively protect the internal 

battery module and BMS from the influence of the external environment. For example, 

the sealant is evenly applied to the joints of the shell by automated glue coating equipment, 

and then the shell is tightly pressed together by a press, and finally cured 

to achieve the best sealing effect of the sealant.

Final inspection and packaging station:

The assembled battery pack is thoroughly inspected for quality,

 including appearance inspection, electrical performance test, 

safety test, etc. The appearance inspection mainly checks whether the battery 

pack shell is scratched or deformed, and whether the label is clear and complete. 

The electrical performance test includes retesting whether the battery pack's voltage, 

capacity, internal resistance and other parameters meet the standard requirements. 

The safety test includes simulation tests such as overcharge, over-discharge, short circuit, 

extrusion, and needle puncture to ensure the safety of the battery pack 

under various extreme conditions. Only battery packs that pass 

all inspection items will be packaged and shipped. The packaging usually 

uses anti-static and moisture-proof packaging materials to ensure 

the stable quality of the battery pack during transportation and storage.

For any inquiries about Three-wheeler pack battery pack assembly line solutions, please don't hesitate to contact us.