It is a new type of lithium battery.
Lithium-ion power battery is a new high-energy battery successfully developed in the 20th century. The negative electrode of this battery is graphite and other materials, and the positive electrode is lithium iron phosphate, lithium cobalt oxide, lithium titanate, etc. It became practical in the 1970s. Because of its advantages of high energy, high battery voltage, wide operating temperature range, and long storage life, it has been widely used in military and civilian small electrical appliances.