Discussion On The Two Major Market Modes Of Power Battery Module And PACK Series[1]

- Nov 09, 2016 -

Since its inception in 1990, because of its high energy density, high voltage, environmental protection, long life and fast charging, etc., lithium batteries are popular with the 3C digital, power tools and other industries, especially the contribution of the new energy automotive industry is particularly prominent. As a source of new energy vehicles, lithium battery industry, a huge potential market, is an important part of national strategic development. the next 5 to 10 years, the industry chain will achieve the ecological self-improvement and development of the industry, the industry is expected to break through 160 billion yuan.

As we all know, from the lithium battery cell to the automation module to the PACK production line to the entire process, the assembly line of automation is an important factor to determine the quality of products and production efficiency.

In recent years, with the increase in experience and automation integration capabilities, the domestic high-end intelligent equipment manufacturing enterprises are creating power battery automatic / semi-automatic assembly line, automation equipment integration, information collection and transmission (MES), unmanned workshop Hardware management systems and other aspects, which highly influenced the industry.

This article will analyze the current market shape from the domestic battery module and PACK equipment characteristics and market demand.

 

Battery module

Lithium battery module composed by hundreds of battery cells through the parallel and series to multiple modules, in addition to the design part, coupled with the battery management system and thermal management system can form a more complete lithium battery Package system. Generally speaking, whether it is soft bag, cylindrical  or 18650 battery, the module of the automated assembly process are starting from the core feeding. Incoming material can be provided by the original packaging suppliers, manufacturers can also be detected after the consolidation of a good unified tray. The loading process can be manual or automatic feeding through the conveyor belt, and then grabbed by the robot through the gripper. While the battery will read the code (collecting the identity of a single cell data information), cell polarity detection (with or without the direction of the opposite), batteries sorting and with groups, and reject the bad. After the initial inspection and sorting, according to the different requirements of modules and processes, doing the processes , such as laser cleaning - glue - cell stack - battery box assembly - cutting the plastic ear - Laser coding - a screw - the module detection - connecting plate laser welding - BMS system connection - the final module - the module blanking respectively.

 

Lithium battery module

At present, due to the requirements of various car manufacturers on the market, the module and production process are different, which influences the stander of automated production line. Good automated production line in addition to meet the above hardware configuration and process requirements, but also need to focus on compatibility and "line the whole beat." As the module is not fixed, so the incoming batteries, shell, PCB board, connecting piece may change, production line compatibility is particularly important. For the current power battery industry, the requirements module of the degree of automation are relatively high, but also because of the complexity of the process, the working environment requirements, the application of robots and special equipment advantages are obvious.

 

The detail of the battery PACK market will be in the Discussion on the Two Major Market Modes of Power Battery Module and PACK Series[2].