The Advantages Of LiFePO4 Battery
Author: Source: Datetime: 2016-10-18 17:12:10
Lithium iron phosphate crystals of P-O bond firm, difficult to decompose, even at high temperature or overcharge will not be as lithium cobalt oxide as the structure collapses fever or strong oxidizing substances, it has a good safety profile. There are reports that practice acupuncture or short experiment, we found a small part of the sample combustion phenomenon occurs, but there was one case of bombing, and overcharge used in the experiment far beyond the self-discharge voltage of high voltage charging several times and found that there are still explosions. Nevertheless, the overcharge security than ordinary liquid electrolyte lithium cobalt oxide batteries, has been greatly improved.
2, Improve life
It refers to the use of lithium iron phosphate lithium iron phosphate as the cathode material for LiFePO4 battery.
Long-life lead-acid battery cycle life of about 300 times, the maximum is 500 times, while the lithium iron phosphate battery, the cycle life of more than 2000 times the standard charge (5 hour rate) used up to 2000 times. With the quality of lead-acid batteries is the "new six months, six months old, Maintenance and six months", most will be from 1 to 1.5 years, while the lithium iron phosphate used under the same conditions, the theoretical life expectancy will reach 7 to 8 years. Taken together, the cost performance is theoretically more than four times the lead-acid batteries. High-current discharge high current 2C fast charge and discharge, under the dedicated charger, 1.5C charge you can make in 40 minutes the battery is full, the starting current of up to 2C, but no such performance lead-acid batteries.
3, High temperature performance
Lithium iron phosphate peak heating up to 350 ℃ -500 ℃ and lithium manganese oxide and lithium cobalt only about 200 ℃. Wide operating temperature range (-20C-- 75C), there is high temperature characteristics of lithium iron phosphate peak heating up to 350 ℃ -500 ℃ and lithium manganese oxide and lithium cobalt only about 200 ℃.
4, Large capacity
Than ordinary batteries (lead-acid) greater capacity. 5AH-1000AH (monomer).
5, No memory effect
Rechargeable battery in full condition after letting go often in work, the capacity will be lower than the nominal capacity value rapidly, a phenomenon called memory effect. Such as nickel metal hydride and nickel cadmium batteries exist memory, lithium iron phosphate is no such phenomenon, no matter what state the battery can recharge it with no need to recharge is done. It's good for using in solar powered portable generator.
6, Light weight
The volume of the same specifications capacity lithium iron phosphate is the volume of lead-acid batteries 2/3, 1/3 weight of lead-acid batteries.
7, Environmental protection
Lithium iron phosphate is generally considered to be free of any heavy metals and rare metals (nickel-metal hydride batteries to be rare), non-toxic (SGS certification through), non-polluting, in line with European RoHS regulations as an absolute battery green card. So the reason to be optimistic about the lithium battery industry, mainly environmental considerations, so the battery and included in the "863" national high-tech development plan "fifth" period, becoming the state's key projects to support and encourage development. With China's accession to WTO, Chinese exports of electric bicycles will increase rapidly, and enter the European electric bikes have been with the requirements of non-polluting batteries.
But some experts said the environmental pollution caused by lead-acid batteries, mainly in the business of non-standard production processes and recycling sectors. Similarly,LiFePO4 battery like lifepo4 48v are the new energy industry is good, but it can not avoid the problem of heavy metal pollution. Metal materials processing lead, arsenic, cadmium, mercury, chromium, etc. are likely to be released into the dust and water. The battery itself is a chemical substance, it is possible to produce two kinds of pollution: the production engineering process fecal contamination; the second is scrapped after battery pollution.
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