Advantages and disadvantages of lithium-ion batteries

Advantages of lithium-ion batteryHigh voltage: The single battery’s working voltage is as high as 3.7-3.8V (the cell voltage can be up to 4.2V). That is three times that of Ni-Cd and Ni-H batteries.

Enormous specific energy: The actual specific power that can arrive 555Wh/kg, that is, the material can reach a particular capacity above 150mAh/g (3-4 times Ni-Cd, 2-3 times Ni-MH). That is close to About 88% of its theoretical value.

Long cycle life: generally can reach more than 500 times, even more than 1000 times, and lithium iron phosphate can get more than 2000 times. Regarding small-current discharge electrical appliances, the battery lifespan will double the competitiveness of electrical appliances.

Good safety performance: No pollution, no memory effect. As the predecessor of Li-ion, the lithium-ion battery is prone to short-circuit due to the formation of dendrites, which reduces its application fields: Li-ion does not contain cadmium, lead, mercury, etc. Environmental pollution elements: A significant drawback of Ni-Cd batteries of some processes (such as sintered) is the memory effect. It severely restricts the use of batteries, but Li-ion does not have this problem at all.

Low self-discharge: The self-discharge rate of fully-charged Li-ion at room temperature about 2% after one month. Much lower than 25-30% of Ni-Cd and 30-35% of Ni and MH.