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Why choose lifepo4 battery for lithium battery?

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Why choose lifepo4 battery for lithium battery?

The cathode materials of lithium batteries are mainly divided into three categories: lithium manganate, lithium iron phosphate and ternary materials. Lithium iron phosphate battery is also called Lifepo4 Battery Cell.In terms of determining the maximum capacity of lithium battery and other performance, the most important role lies in the selection of cathode materials. However, lithium iron phosphate accounts for half of the lithium battery industry. Why choose lithium iron phosphate battery? Let's analyze it together.

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Advantages of lithium iron phosphate battery

 

1. High security

 

Lithium iron phosphate has good safety performance. According to the investigation, in the actual operation of the acupuncture or short circuit experiment, it was found that a small number of samples were burning, but no explosion occurred. However, in the overcharge experiment, the explosion occurred when high voltage charging was used, which was much more than several times of its own discharge voltage. In fact, after overcharge reaction, the safety of lithium iron phosphate has been greatly improved compared with other lithium batteries.

 

2. Long cycle life

 

As we all know, the cycle life of the so-called long-life lead-acid battery can only reach about 300 times, up to 500 times. The cycle life of lithium iron phosphate battery can reach more than 2000 times. The life of lead-acid battery with the same quality is generally about 2-3 years, while the theoretical life of lithium iron phosphate battery under the same conditions will reach 7-8 years.

 

3. Large capacity without memory effect

 

The capacity of the battery will be lower than the rated capacity rapidly when it works under the condition that it is always full and not discharged completely. This phenomenon is called memory effect. For example, NiMH and NiCd batteries have memory, while lithium iron phosphate batteries do not, and the battery capacity will not decrease. No matter what state the battery is in, it can be used as soon as it is charged, without first discharging and then charging. The volume of lithium iron phosphate battery with the same specification and capacity is 2/3 of that of lead-acid battery, and the weight is 1/3 of that of lead-acid battery.

 

4. Green and environmental protection

 

Lithium iron phosphate battery is generally considered to be free of any heavy metals and rare metals, non-toxic and pollution-free. The reason why lithium battery is favored by the industry is mainly due to the consideration of environmental protection. As an important branch of lithium battery, lithium iron phosphate has obvious environmental performance.

 

5. Good high-temperature performance

 

It is understood that the thermal peak of lithium iron phosphate can reach 350 ℃ - 500 ℃, while the thermal peak of some lithium batteries is only about 200 ℃. Therefore, lithium iron phosphate has certain advantages in high temperature performance!

 

 

Inevitably, lithium iron phosphate battery also has its own shortcomings: its low temperature performance is poor, and the preparation cost of lithium iron phosphate material and battery manufacturing cost are relatively high. However, the quality is proportional to the price, and the budget is sufficient. It is recommended to purchase lithium iron phosphate battery.


Pub Time : 2023-01-30 17:02:56 >> News list
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