Analyze the difference between power lithium battery module and PACK and its market development

by:CTECHi     2021-08-16

As we all know, in the entire process from lithium battery cells to automated modules to the PACK production line, the degree of automation of the assembly line is an important factor that determines product quality and production efficiency. In recent years, with the increase of experience and the improvement of automation integration capabilities, domestic high-end intelligent equipment manufacturers are building automatic/semi-automatic assembly lines for power batteries, automation equipment integration, information collection and transmission (MES), and unmanned workshop software. The hardware management system and other aspects have made great efforts and occupy a place. The editor of this article will start from the characteristics and market demand of power lithium battery modules and PACK equipment, talk about the difference between lithium battery packs and PACK, and analyze the current market situation. Power Lithium Battery Module Lithium battery modules are multiple lithium battery packs composed of several to hundreds of battery cells in parallel and in series. In addition to the mechanism design part, the battery management system and thermal management system can be combined. A more complete lithium battery pack system. Generally speaking, whether it is a soft pack, square, cylindrical or 18650 type battery, the automated assembly process of the module starts with the charging of the cells. The incoming material can be the packaging provided by the original supplier, or it can be a special pallet uniformly organized by the manufacturer after inspection. The feeding process can be manual operation, or it can be automatically fed by a conveyor belt, and then picked up by a robot by a gripper. At the same time of loading, the code reading of the cell (collecting the identity data information of a single cell), cell polarity detection (with or without reverse direction), cell sorting and grouping, and rejecting defective products will also be carried out. After the incoming materials pass the initial inspection and sorting, according to the different module and process requirements, such as laser cleaning-gluing-battery cell stacking-battery box assembly-tab cutting and shaping-module shell laser welding-module Laser coding-screwing-module inspection-connecting piece laser welding-BMS system connection-module final inspection-module blanking and other processes. At present, due to the different requirements of various car manufacturers in the market, almost no one has the same module and production process, which also puts forward more requirements on the automated production line. In addition to meeting the above hardware configuration and process requirements, a good automated production line also needs to focus on compatibility and 'full line beats.' Because the modules are not fixed, the incoming batteries, shells, PCB boards, connecting pieces, etc. may change, and the compatibility of the production line is especially important. For the current power battery industry, the automation requirements of modules are relatively high, and due to the complexity of the process and the requirements of the working environment, the advantages of using robots and special equipment are obvious. PACKPACK means packaging, encapsulation, and assembly. The process is divided into three parts: processing, assembly, and packaging. The PACK production line generally only needs to undertake two functions: transmission and detection. At present, various manufacturers generally use semi-automatic PACK assembly lines, which are mainly used for PACK on-line, off-line, testing, in-plant transmission and packaging. Among them, AGV trolleys, power-assisted robotic arms, roller lines, booms, etc. are all simple and effective tools. Because flexible wiring and other work cannot be separated from manual assistance, semi-automatic PACK is currently the mainstream configuration of various manufacturers. With the rapid development of the industry, more and more customers require the integration of PACK and module MES systems for better management and fast query, which is a big deal for system integrators. challenge. The difference between power lithium battery module and PACK Lithium battery module is a relatively complete system, while PACK is a single component. Lithium battery modules are multiple packs composed of several to hundreds of battery cells in parallel and in series. In addition to the mechanism design part, plus the battery management system and thermal management system, a more complete lithium battery pack can be formed. system. PACK means packaging, encapsulation, and assembly, and its processes are divided into three parts: processing, assembly, and packaging. PACK is a single component. The PACK production line generally only needs to undertake two functions: transmission and detection. At present, various manufacturers generally use semi-automatic PACK assembly lines, which are mainly used for PACK on-line, off-line, testing, in-plant transmission and packaging. The automation integration business of power batteries generally includes fully automatic/semi-automatic assembly lines of modules and PACKs, automation equipment integration, information collection and transmission (MES), and unmanned workshop software and hardware management systems. Market analysis of power lithium battery modules and PACK With the continuous improvement of power battery automatic assembly technology and the popularization of high-end equipment, power battery companies have become more and more aware of it. Last year, many domestic companies have configured fully automatic module production lines, and their production capacity and product quality have been significantly expanded and improved. In terms of market demand, the form of battery modules and PACK production equipment will range from the current small batches and multiple varieties to the future mass standardization. The formulation of solutions will be the focus of battery manufacturers’ attention. At the same time, battery companies choose automation models. Group and PACK production line are not only for investment and return, but also a strategic layout for the long-term development of the company. Industry insiders believe that if PACK companies want to stand out in the future market competition, they must eliminate traditional assembly processes and production methods. At the same time, lithium battery pack PACK manufacturers need to continuously enhance their Ru0026D capabilities, improve product quality, and realize production automation. . Automated and intelligent production methods may become an important indicator for considering PACK lithium batteries.

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