What are the advantages of electric vehicle lithium-ion batteries?

Electric vehicle batteries are divided into lead-acid batteries and lithium-ion batteries. Compared with lead-acid batteries for electric vehicles, we know less about lithium-ion batteries for lithium-electric vehicles. Here we briefly introduce the top ten advantages of lithium-ion batteries.

1. Long cycle life: Lithium-ion battery is charged and discharged at 1C rate, and its cycle life is greater than or equal to 500 times. The capacitance at the 500th time is greater than 70% of the nominal copper beam. The lead-acid battery, even if it is discharged at 0.5, is charged at 0.15 C, and its cycle life is 350 or less, and the capacity is 60% or less.

2. Low temperature discharge performance: lithium-ion battery can work normally at -25 degrees, its capacity can reach 70% of the nominal capacity, while lead-acid batteries at 50% of the capacity at -10 degrees, at -25 Time is not: can work normally.

3. The ability to maintain the charge: the fully charged lithium-ion battery pack, after two months, its capacitance is greater than or equal to 80%, while the lead-acid battery is placed for two months, only 40% of the nominal capacity -50 %.

4. Strong ability to continue, because the weight of lithium-ion battery pack is only 30% of the lead-acid battery, so under the same voltage, capacity, lithium-ion battery has a strong ability to continue.

5. High specific energy: Since the volume of lithium-ion batteries is only 30% of that of lead-acid batteries, the energy reserve of lithium-ion batteries is larger than that of lead-acid batteries when using the same space.

6. Wide operating temperature range: lithium-ion batteries can work in the range of -25 degrees to 55 degrees, while lead-acid batteries can only work in the range of 10 degrees to 40 degrees.

7. Short charging time: Since the lithium ion battery has the characteristics of high current charging, the charging time is only 4-5 hours, while the lead acid battery takes 8 to 10 hours.

8. High environmental protection performance: Compared with lead metal batteries, which have a large amount of heavy metal lead which is harmful to the human body and the environment, lithium ion batteries are highly environmentally friendly products.

9. Can discharge at a large current: Lithium-ion battery discharges at a high current rate of 1C, and its capacity is only 60% of the rated capacity.

10. High current discharge does not affect cycle life: Lithium-ion battery discharges at a current rate of 1.5C, which has no effect on its cycle life. The lead-acid battery discharges at a high current rate of 1.5 C. Its cycle life is only 30%-40% of the nominal cycle life.

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