Analysis of the structural characteristics and model specifications of cylindrical lithium batteries

(1) Generally cylindrical lithium batteries are composed of a shell, a cap, a positive electrode, a negative electrode, a separator, and an electrolyte. Generally, the battery case is the negative electrode of the battery, and the cap is the positive electrode of the battery. The battery case is made of nickel-plated steel. (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. What are the model specifications? Cylindrical lithium batteries are divided into lithium cobalt oxide, lithium manganese oxide, and ternary materials. The three material system batteries have different advantages. The batteries are widely used in: notebook computers, digital cameras, lighting fixtures, toy products, power tools, portable mobile energy and other fields. 1. 10440 battery The 10440 battery is a lithium battery with a diameter of 10mm and a height of 44mm. It is the same size as what we often call the No. 7 battery. The capacity of this battery is generally small, only a few hundred mAh. It is important to use in mini electronics. product. For example, flashlights, mini speakers, loudspeakers, etc. 2. 14500 battery The 14500 battery is a lithium battery with a diameter of 14mm and a height of 50mm. This is also the size we have always called the No. 5 battery. This battery is generally 3.7V or 3.2V, with a relatively small nominal capacity. A bit larger than the 10440 battery, usually 1600mAh, with superior discharge performance. The most important use category is consumer electronics, such as wireless audio, electric toys, and digital cameras. 3. 16340 battery 16340 battery is a kind of lithium battery with a diameter of 16mm and a height of 34mm. Because the height of the ruler is a little shorter, and the capacity is not small, it is used in strong light flashlights, LED flashlights, headlights, and laser lights. , Lighting fixtures, etc. often appear. 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 should I pay attention to when charging UPS lithium batteries?