Analysis of the structural characteristics and advantages of cylindrical lithium batteries

Structural characteristics of cylindrical lithium batteries (1) Generally cylindrical lithium batteries are composed of a shell, a cap, a positive electrode, a negative electrode, a diaphragm and an electrolyte. Generally, the battery case is the negative electrode of the battery, the cap is the positive electrode of the battery, and the battery case is made of nickel-plated steel plate. (2) The key difference of the power cylindrical lithium battery lies in the conductive connection structure of the battery, because the power lithium ion battery generally uses a relatively large current and requires a special high-current structure design. In order to facilitate the combination and connection, on the basis of the original cylindrical lithium battery structure, a special connection combination device is designed, such as designing internal threads or studs on the positive and negative electrodes of the battery, and the conductivity is also enhanced. Cylindrical lithium batteries use a fairly mature winding process with a high degree of automation, stable product quality, and relatively low cost. Advantages of cylindrical lithium batteries ① Cylindrical lithium batteries have formed a series of internationally unified standard specifications and models. The technology is relatively mature and suitable for continuous processing in large quantities. ②The cylinder has a large specific surface area and good heat dissipation effect. ③ Cylindrical lithium batteries are generally sealed batteries, and there are no maintenance problems during use. ④Lithium battery shell has high pressure resistance, and there will be no phenomenon such as square shape and soft packaging battery expansion during use. Disclaimer: Some pictures and content of the articles published on this site are from the Internet. If there is any infringement, please contact to delete. Previous: What are the critical processes in the processing of soft pack lithium batteries