What are the production processes of polymer lithium batteries

The production of the electrode mainly contains the batching, coating, rolling and sheeting process; the process of the sheeting process will be different due to the different production methods of the core: the current process includes winding-type roll sheeting and stacking. Single-chip die-cutting of chip technology. //Battery packaging and battery packaging, which mainly includes the assembly of the core and the packaging after the battery is filled with liquid. The main part of the assembly is to assemble the formed pole piece into a core while packaging the core with the corresponding shell. The current important There are square laser welding and heat sealing of soft aluminum plastic film. The assembled battery needs to be vacuum-baked to remove the moisture absorbed by the battery during the process, and then the battery is injected and encapsulated: the encapsulated square battery and cylinder are the last encapsulation, and the soft pack is pre-sealed. //Battery test The battery test mainly contains the first formation, aging, capacity division, second sealing and factory testing of the battery. Among them, there is a two-sealing process unique to soft-pack batteries. The two-sealing is divided into two processes: Degassing and two-sealing. Therefore, after the two-sealing of the soft-pack battery, not only the gas will be extracted from the battery during the formation process. , And at the same time make the inner layer of the battery and the pole piece between the layers better fit. After the second seal is completed, the soft-packed lithium battery cell is basically formed. Therefore, the batteries that have undergone the sub-capacity test can be directly shipped to the client according to customer needs, or they can be shipped after PACK for electronic assembly or other external packaging. 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 is the price of lithium iron phosphate batteries used in new energy passenger cars?