What are the specific types of lithium battery cells?

There are three types of batteries that are widely used in the market, including 18650 batteries, polymer batteries and lithium iron phosphate batteries. 1. 18650 battery cell 18650 lithium battery refers to a battery with a diameter of 18mm and a length of 65mm, and 0 means a cylindrical battery. The technology of the 18650 battery cell is relatively mature, the battery structure is stable, the specific capacity is high, the comprehensive performance is outstanding, and because of its small size, it can be used in many areas. 2. Polymer batteries The difference between polymer batteries and traditional lithium batteries lies in the processing technology. Lithium batteries are wound and are relatively soft. The polymers are superimposed and have a harder body. With the same volume of polymer and lithium batteries, the capacity of the polymer is larger, about 30% higher. And it's safer, and the risk of explosion is small. long lasting. 3. Lithium iron phosphate batteries Lithium iron phosphate batteries, in terms of material composition, its resources are more common on earth. The P-O bond in the lithium iron phosphate crystal in the battery cell is stable and difficult to decompose. Even at high temperatures or overcharge, it will not collapse and heat up or form strong oxidizing substances in the same structure as lithium cobalt oxide, so it has good safety. Disclaimer: Some pictures and content of articles published on this site are from the Internet. If there is any infringement, please contact to delete.