The cylindrical lithium battery is a type of lithium ion battery. Its shape is cylindrical, so it is called a cylindrical lithium battery. The cylindrical lithium battery is divided into lithium cobaltate (LICOO2), lithium manganate (LIMN2O4), and LINIMNCOO2 or NMC, LINICOALO2 or NCA), lithium iron phosphate (LIFEPO4) and lithium titanate (li4Ti5O12).
There are many models in cylindrical lithium batteries, and the common ones are 14500, 14650, 18500, 18650, 21700, 26650, 32650, etc., which are widely used in special equipment, medical equipment, instrument, handheld equipment, security communication and other fields.