Analysis of the composition and characteristics of lithium battery PACK

Lithium battery PACK composes PACK including battery pack, bus bar, flexible connection, protection board, outer packaging, output (including connector), barley paper, plastic bracket and other auxiliary materials together to form PACK. Lithium battery PACK means packaging, encapsulation, 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 production lines, which are mainly used for PACK on-line, off-line, testing, in-plant transmission and packaging. The lithium battery pack production line is relatively simple. The core processes include feeding, bracket pasting, electric welding, testing and other processes. The core equipment is a laser welding machine and various pasting test equipment. At present, major lithium battery equipment manufacturers have fewer automated integration layouts in this area, and laser equipment manufacturers such as Han's Laser and Lianying Laser have a higher share of Pack equipment due to their absolute advantages in the laser field. Characteristics of Lithium Battery PACK ①The battery pack PACK requires lithium batteries to have a high degree of consistency. ②The cycle life of the battery pack PACK is lower than that of a single battery. ③Use under limited conditions (including charging, discharging current, charging method, temperature, etc.) ④The battery voltage and capacity of the lithium battery pack are greatly improved after the PACK is formed. It must be protected by charging equalization, temperature, voltage Overcurrent monitoring. ⑤Lithium battery pack PACK must meet the design requirements of voltage and capacity. Lithium battery PACK is realized in two ways. One is laser welding or ultrasonic welding or pulse welding. This is a commonly used welding method. The advantage is that it has better reliability, but it is not easy to replace. The second is the contact through the elastic metal sheet. The advantage is that no welding is required and the battery is easy to replace, but the disadvantage is that it may cause poor contact. Disclaimer: Some pictures and content of articles published on this site are from the Internet, please contact to delete if there is any infringement. Previous: Analysis of the product characteristics of UPS lithium battery packs