What problems will be encountered during the processing of lithium battery packs?

What are the important problems encountered when processing lithium battery packs? What are the important problems encountered when processing lithium battery packs? In lithium battery UPS, lithium battery packs are usually used as the carrier of energy storage, and its importance is not mentioned. Yu. The quality of the lithium battery pack will affect the quality of the lithium battery UPS to a large extent, so the lithium battery pack must be strictly controlled during the processing process. What are the important problems encountered in the manufacturing process of lithium battery packs? How do these problems affect the quality of lithium battery packs? The processing technology of lithium battery packaging mainly includes the molding process of aluminum plastic film, capping and side sealing process, liquid injection, and pre-sealing Process, standing, molding, fixture molding process, etc. The following discusses the processing process of the lithium battery pack. Aluminum-plastic film forming process The surface of the aluminum foil is passivated by chromic anhydride in the process of washing out the oil. Due to the surface tension of the water, the pores on the aluminum foil cannot be cleaned in the oil, resulting in subsequent process defects. When the aluminum foil is coated with the UV layer, the hardness of the aluminum foil is not high, and the dry composite will simply fold. The effect of the adhesive in the use of equipment is not simple, and it is easy to cause the problem of peeling of the aluminum-plastic film layer. Note that during the injection process of the liquid lithium battery pack, if the water content in the injection chamber is high, it reacts with the solute lithium hexafluorophosphate to form hydrofluoric acid, which has a great impact on the electrochemical performance and safety performance of the battery. If the lithium battery pack stays in the injection cavity for too long, it will absorb more water and HF acid will also appear. During the accumulation process, the formation of SEI will be affected by factors such as composition data and external temperature. If there is a problem with the formation of SEI, the irreversible capacity of the initial charge and discharge of the lithium battery pack will be added, which will reduce the charge and discharge efficiency of electrode data. There are many processes in the processing of lithium battery packs. If you want to process qualified products, you must ensure that every process of the lithium battery pack is correct. The above examples are only a small part of the lithium battery packaging process, so if you want to have a safer and more reliable lithium battery packaging product, you must buy it from a well-known large domestic manufacturer. Because large manufacturers have sufficient funds to purchase high-quality processing tools and a cleaner processing environment, there are also many testing procedures that can supply higher-quality lithium battery packs. 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: Analysis of the development prospects of all-solid-state batteries