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What are the advantages of lithium-ion batteries?

Date of Issue:2020-07-15 Click:

1) High voltage of lithium ion battery: The working voltage of single battery is as high as 3.7-3.8V (3.2V for lithium iron phosphate), which is 3 times that of Ni-Cd and Ni-MH batteries.

2) Lithium-ion battery has a large specific energy: the actual specific energy that can be reached is about 555Wh/kg, that is, the material can reach a specific capacity of more than 150mAh/g (3--4 times Ni-Cd, 2--3 times Ni-Cd -MH), which is close to about 88% of its theoretical value.

3) Long cycle life of lithium-ion battery: generally can reach more than 500 times, even more than 1000 times, and lithium iron phosphate can reach 8000 times. For electrical appliances with low current discharge, the battery life will double the competitiveness of electrical appliances.

4) The lithium-ion battery has good safety performance: no pollution and no memory effect. As the predecessor of Li-ion, the lithium battery has a short circuit due to the formation of dendrites, which reduces its application fields: Li-ion does not contain cadmium, lead, mercury and other elements that pollute the environment: some processes (such as sintered A major drawback of Ni-Cd batteries is the "memory effect", which severely restricts the use of batteries, but Li-ion does not have this problem at all.

5) The self-discharge of lithium-ion battery is small: the self-discharge rate of fully charged Li-ion at room temperature is about 2% after 1 month, which is much lower than 25-30% of Ni-Cd and 30-35 of Ni-MH %.

6) Fast charging: 1C charging for 30 minutes, the capacity can reach more than 80% of the nominal capacity, and the phosphorous iron battery can be charged to 90% of the nominal capacity for 10 minutes.

7) Working temperature: Working temperature is -25~45°C, with the improvement of electrolyte and positive electrode, it is expected to expand to -40~70°C.


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