-What is the normal lifespan of ternary lithium batteries?

What is the normal lifespan of ternary lithium batteries?
author:enerbyte source:本站 click125 Release date: 2024-07-15 09:21:56
abstract:
A ternary lithium-ion battery has a theoretical cycle life of around 1500 cycles. In practical use, it can be fully charged and discharged for over 800 cycles. However, when the battery is controlled to discharge at 25% -75%, it can be used for over 1200 cycles. The charging and discharging cycle li...

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A ternary lithium-ion battery has a theoretical cycle life of around 1500 cycles. In practical use, it can be fully charged and discharged for over 800 cycles. However, when the battery is controlled to discharge at 25% -75%, it can be used for over 1200 cycles. The charging and discharging cycle life of lithium iron phosphate batteries can generally reach more than 2000 times. Even for a car with a range of only 70 kilometers, 2000 cycles can support pure electric driving for 140000 kilometers. The only drawback is low energy density and significant low-temperature decay. The capacity will decrease by about 10% at 0 ℃ and about 30% at -20 ℃.

The theoretical lifespan of ternary lithium-ion batteries is about 800 cycles, which is considered moderate among commercial rechargeable lithium-ion batteries. Lithium iron phosphate has about 2000 cycles, while lithium titanate is said to achieve 10000 cycles. At present, mainstream battery manufacturers promise in their specifications for ternary battery cells that they will be charged and discharged more than 500 times under standard conditions. However, after the battery cells are assembled into a battery pack, due to consistency issues, the voltage and internal resistance cannot be exactly the same, and their cycle life is about 400 times.

1. The material of ternary lithium-ion batteries is cycled about 800 times.

2. The lithium iron phosphate battery has approximately 2500 cycles.

3. There is a difference in the number of cycles between genuine batteries and defective batteries. Genuine batteries are designed and produced according to the battery manufacturer's specifications, while defective batteries may sometimes have less than 50 cycles.

The current 3.7V 18650 generally has a cycle life of about 500-1000 times, and the 3.2V 18650 generally has a life of over 2000 times. Of course, the prerequisite is qualified batteries produced by legitimate manufacturers. If it is a defective or counterfeit battery, the life will be very short.


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