What is the real cycle life of LiFePO4 battery?

LiFePO4 battery is used as the anode material of lithium iron phosphate lithium ion batteries.

Long life cycle life of lead-acid battery in about 300 times, the highest is 500 times. While lithium iron phosphate power battery, cycle life reached more than 2000 times, the standard charging rate (5 hours) to use, can reach 2000 times. With the quality of the lead-acid battery is "new six months, six months old, maintenance, maintenance and half a year", the most is 1-1.5 years, while iron phosphate the lithium battery under the same conditions used, the theory of life will reach 7 ~ 8 years. Comprehensive consideration and the price performance ratio in theory is for lead-acid battery more than four times. Large current discharge can be as big 2 C fast charge and discharge current, under the special charger, 1.5 C can make battery charging 40 minutes, starting current can be up to 2 C, lead-acid battery is the performance.

Now a lot of teaching laboratory will use the carbonic acid LiFePO4 battery. Due to application of carbonic acid LiFePO4 battery in life now is becoming more and more widely, so a lot of people are very the attention of its development. Then the real life small make up in carbonic acid LiFePO4 battery do a simple introduction, for your understanding.

A, carbonic acid LiFePO4 battery in different environments have different discharge rate:

Small make up to introduce the first that the carbonate LiFePO4 battery under different environments, it will have different discharge rate, and the minimum discharge rate can reach 0.5 c, maximum discharge rate can reach 10 c, and this kind of battery in either discharge rate, in the process of discharge will be very smooth, in general voltage is very smooth, almost will remain the same, only when the carbonic acid LiFePO4 battery power end, will find it will be a sharp decline phenomenon, this can be very effective, carbonic acid LiFePO4 battery it has very good discharge characteristics which means it's real life is very long.

Second, carbonic acid LiFePO4 battery under different temperature conditions showed that:

Second small make up to introduce, carbonic acid LiFePO4 battery in different adjustment of temperature, also can have different discharge phenomenon, we have to set the temperature to minus 20 to 40 degrees or above, at that time you will find that the carbonic acid LiFePO4 battery in 23 ℃, power capacity can reach 100%, and the amount of discharge at 0 ℃ is 78%, which means he SanTie lithium battery in different temperature under the conditions of its discharge rate is different, so we want to estimate the carbonic acid LiFePO4 battery of this description, be sure to keep it in the temperature of a particular area, so that the estimated result is good, but he is under the condition of the limit temperature of manifestation, carbonic acid LiFePO4 battery real life is very long, can reach more than 570 times the discharge cycle.

Third, carbonic acid LiFePO4 battery in zero voltage experiment:

Put carbonic acid LiFePO4 battery in zero voltage experiment, you'll find, three days after the battery power is full of, in such an environment continue to discharge loop, found that its capacity will change is very small, which means it has a capacity of recovery is very good.

Finally, the production of the lithium iron phosphate in foreign countries is a patent dispute, and this is also the foreign electric car widely used ternary cathode material of lithium-ion batteries.

The life of the lithium iron phosphate batteries may not four to five times longer than lead acid battery, with high technical content of lead-acid battery now, and life of 5 years is no problem. And because lithium battery cathode material graphite structure collapse problems, even if put five years do not use will be discarded. Batteries of different quality can't compare. Digititan and oriental star can be far from it.

P.S. It doesn't make sense to make a comparison between lithium ion battery and lead-acid battery, but they are absolutely not environmental protection.

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