What is the processing technology of lithium batteries?

Lithium battery processing technology: stirring, coating, winding, and testing are important processing technologies for lithium batteries. 1. Slurry mixing is an important part of lithium battery equipment. The positive electrode slurry of lithium battery is composed of binder, conductive agent, positive electrode material, etc., and the negative electrode slurry is composed of binder, graphite carbon powder, etc.; positive and negative electrode slurry The preparation of Lithium batteries includes the mutual mixing, dissolution and dispersion of liquid and liquid, liquid and solid materials; the quality of the dispersion of the slurry directly affects the quality and performance of the lithium battery. 2. Coating determines the consistency and superiority of the battery, and occupies a technical position in battery manufacturing. No matter what kind of battery is processed (such as cylindrical or square), the coating machine used in manufacturing is the same; different types of batteries need to be equipped with different types of winding machines. 3. In addition to lithium battery winding machines, there are capacitor winding machines, textile winding machines, etc. According to the operation mode of the machine, it can be divided into manual winding machine, semi-automatic winding machine and fully automatic winding machine. 4. The importance of testing items has become increasingly prominent. Lithium batteries are easy to burn or explode due to short circuit, overcharge and other reasons. In applications, they will be combined with the protection board to form a finished battery; in applications with higher energy density, lithium batteries need to be combined in series and parallel to form a lithium battery pack, through the battery management system (BMS) for management. It can be seen that the lithium battery processing technology is relatively long, including more than 50 procedures, corresponding to more than 50 kinds of equipment. The entire manufacturing process can be divided into four process stages: pole piece production, cell assembly, cell activation detection and battery packaging. Among them, pole piece production related equipment is called front-end equipment, cell production related to mid-end equipment, and cell activation detection. And battery packaging equipment is the back-end equipment. In recent years, lithium battery processing has developed towards integration, integration, and automation. The lithium battery automated processing line provides customers with standardized products. Traditional development methods cannot cope with the rapidly changing needs of customers. Disclaimer: Some pictures and content of articles published on this site are from the Internet. If there is any infringement, please contact to delete. Previous: What are the charging errors of mobile phone batteries?