Lithium 3.7V 18650
Lithium is a metal element with the chemical symbol Li (English name is lithium). It is a silver-white, very soft, chemically active metal that is the lightest in metals. In addition to its application in the atomic energy industry, it can manufacture special alloys, special glass (fluorescent screen glass for TV sets) and lithium batteries. It is used as an anode of a battery in a lithium battery.