The key advantages of Lithium-ion battery

1) High voltage

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

2) High energy density

The actual specific energy that can be achieved is about 555Wh/kg, that is, the material can reach a specific capacity above 150mAh/g (3-4 times Ni-Cd, 2–3 times Ni-MH).

3) Long cycle life

Generally, it can reach more than 500 times, or even more than 1000 times, and it can reach 8000 times for lithium iron phosphate. For electrical appliances with low current discharge, the battery life will double the competitiveness of electrical appliances.

4) No pollution and no memory effect

As the predecessor of Li-ion, the lithium battery is short-circuited due to the formation of dendrites due to metal lithium, which reduces its application fields: Li-ion does not contain cadmium, lead, mercury and other elements that pollute the environment: A major disadvantage of Ni-Cd batteries of some processes (such as sintered) is the "memory effect", which seriously restricts the use of batteries, but Li-ion does not have this problem at all.

5) Low self-discharge

The self-discharge rate of fully charged Li-ion stored at room temperature for 1 month is about 2%, which is much lower than 25-30% of Ni-Cd and 30-35% of Ni-MH.

6) Fast charging

The capacity of 1C charging for 30 minutes can reach more than 80% of the nominal capacity, and the ferrophosphorus battery can be charged to 90% of the nominal capacity for 10 minutes.

7) Working temperature

The 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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