Analysis of the difference and market demand between domestic lithium-ion battery modules and PACK

Analysis of the difference between domestic lithium-ion battery modules and PACK and market demand. Lithium-ion battery PACK mainly refers to the production, assembly and packaging of lithium-ion battery packs in the early days. Because new energy passenger vehicles have higher requirements for energy density and safety, as their sales volume increases, the demand for soft pack batteries with higher energy density and better safety performance will increase year by year. The standardization of power lithium-ion battery cell and module specifications and size is the future development trend, which will promote the development of fully automatic intelligent lithium-ion battery module PACK line. The difference between domestic lithium-ion battery module and PACK Li-ion battery PACK is widely used in the consumer electronics market, covering mobile phones, notebook computers, game consoles, digital cameras, portable devices and so on. The PACK process of lithium-ion batteries refers to the assembly of battery cells, protective plates, battery wires, battery nickel sheets, battery accessories, battery boxes, battery membranes, etc. into finished batteries by welding. In the field of consumer electronics, the technology and market for battery packs have matured and are growing. Lithium-ion 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, together with the battery management system and thermal management system, a more complete lithium ion can be formed. Battery pack system. PACK means packaging, packaging, and assembly. The process is divided into three parts: production, assembly, and packaging. PACK is a single component. The PACK production line generally only needs to undertake two functions: transmission and testing. 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 characteristics of lithium-ion battery pack ①PACK lithium-ion battery pack requires a high degree of battery consistency (capacity, internal resistance, voltage, discharge curve, life); ②The cycle life of battery pack PACK is lower than that of a single battery; ③Lithium After the ion battery pack PACK is formed, the battery voltage and capacity have been greatly improved, and it must be protected by charging equalization, temperature, voltage and overcurrent monitoring. The domestic market demand analysis of lithium-ion battery modules and PACK is well known. In the entire process from lithium-ion battery cells to automation modules and then to the PACK processing line, the degree of automation of the assembly line is an important factor in determining product quality and processing efficiency. factor. With the increase of relevant experience and the improvement of automation integration capabilities, domestic high-end intelligent equipment manufacturing companies are building automatic/semi-automatic assembly lines for power lithium batteries, automation equipment integration, information collection and transmission (MES), and unmanned workshop software and hardware. The management system and other aspects have made great efforts and occupy a place. It is estimated that my country's new energy vehicle market will reach 1.45 million in 2020, and the corresponding demand for lithium-ion batteries will exceed 60Gwh. Based on the average battery price of 2.5 yuan/Wh, the total output value of the domestic power lithium-ion battery (including PACK) market is currently around 75 billion yuan. It is foreseeable that the domestic market demand for power lithium-ion batteries has soared, which will undoubtedly bring huge market space to PACK, and will become an important field of competition in the equipment field in the future. With the continuous improvement of the automatic assembly process of power lithium-ion battery and the popularization of high-end equipment, power lithium-ion battery companies have become more and more aware of it. In terms of market demand, the form of battery modules and PACK processing 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 automated models. Group and PACK processing line are not only for investment and return, but also for the company's long-term development strategy. At this stage, the domestic power lithium-ion battery PACK level gap is very wide, and there are very few high-quality PACK manufacturers in the industry that can truly meet the needs of downstream vehicle manufacturers. This has led to some automation integrators with strong technical capabilities, excellent design methods, and rich industry-related experience. Favored by lithium-ion electrical processing companies. Industry insiders believe that if PACK companies want to stand out in the future market competition, they must eliminate traditional assembly techniques and processing methods. At the same time, lithium-ion battery pack PACK manufacturers must continue to enhance the company’s Ru0026D strength, improve product quality, and achieve processing. automation. Automated and intelligent processing methods may become an important indicator for considering PACK lithium-ion batteries. 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