Battery pack assembly process and characteristics introduction

The battery pack assembly process has seven major links: the selection and matching group process, the automatic welding process, the semi-finished product assembly process, the aging test process, the pack inspection process, and the pack packaging process. The battery pack is realized in two ways. One is laser welding, ultrasonic welding or pulse welding. This is a commonly used welding method. The advantage is that it has good reliability, but it is not easy to replace. The second is to contact through the elastic metal sheet. The advantage is that it does not need to be welded and the battery is easy to replace. The disadvantage is that it may lead to poor contact. In the entire process from lithium-ion battery cells to automation modules to the battery pack production line, the degree of automation of the assembly line is a key factor in determining product quality and production efficiency. Because battery pack standards are not uniform, automated manufacturing in the pack link is almost blank. In order to further improve production efficiency and reduce costs, it is necessary to vigorously promote the application of lithium-ion battery automated production equipment. The characteristics of the battery pack 1. The battery pack requires a high degree of consistency of lithium-ion batteries; 2. The cycle life of the battery pack is lower than that of a single battery; 3. Use under limited conditions (including charging and discharging current , Charging method, temperature, etc.; 4. After the lithium-ion battery pack is formed, the battery voltage and capacity are greatly improved, and must be protected by charging equalization, temperature, voltage and overcurrent monitoring; 5. lithium-ion battery pack Must meet the design requirements of voltage and capacity. Statement: Some pictures and content of the articles published on this site are from the Internet. If there is any infringement, please contact to delete the previous article: How to use and maintain lithium-ion batteries in winter?