8 major advantages of Lifepo4 batteries.

8 major advantages of Lifepo4 batteries.

The positive electrode of lithium-ion batteries is made of lithium iron phosphate material, which has great advantages in safety performance and cycle life. These are all one of the most important technical indicators for power batteries. Lifepo4 batteries have a 1C charging and discharging cycle life of up to 2000 times, with no puncture or explosion, and are less prone to combustion or explosion due to overcharging. The lithium iron phosphate cathode material makes it easier to connect large capacity lithium-ion batteries in series.

Lithium iron phosphate cathode material
Lifepo4 battery refers to a lithium-ion battery with lithium iron phosphate as the positive electrode material. The main positive electrode materials for lithium-ion batteries include lithium cobalt oxide, lithium manganese oxide, lithium nickel oxide, ternary materials, and lithium iron phosphate. Among them, lithium cobalt oxide is the positive electrode material used in most lithium-ion batteries. Lithium iron phosphate is also a process of embedding and de embedding in principle. This principle is the same as lithium cobalt oxide and lithium manganese oxide.

Advantages of lifepo4 batteries
1. High charging and discharging efficiency
Lifepo4 batteries are lithium-ion secondary batteries. One main use is for power batteries. It has significant advantages over nickel hydrogen and nickel cadmium batteries. Lifepo4 batteries have high charging and discharging efficiency, with a charging and discharging efficiency of over 90% in the discharge state, while lead-acid batteries have a charging and discharging efficiency of around 80%.

2. Lifepo4 batteries have high safety performance
The PO bond in lithium iron phosphate crystals is stable and not easily decomposed. Even at high temperatures or overcharging, it will not collapse or generate heat like lithium cobalt oxide, nor will it form strong oxidizing substances, so it has good safety.

It is reported that in actual operation, a small number of samples were found to have combustion during needle puncture or short circuit tests, but no explosion occurred. In the overcharging experiment, high voltage charging several times higher than the self discharge voltage was used, and it was found that there was still a burst phenomenon. However, its overcharging safety has been greatly improved compared to ordinary liquid electrolyte lithium cobalt oxide batteries.

3. Lifepo4 battery has a long cycle life
Lifepo4 battery refers to a lithium-ion battery with lithium iron phosphate as the positive electrode material.
The cycle life of long-life lead-acid batteries is about 300 times, with a maximum of 500 times. The cycle life of lithium iron phosphate power batteries can reach over 2000 times, and the standard charging (5-hour rate) can reach 2000 times.

A lead-acid battery of the same quality can last for up to 1-1.5 years with six months of new and old maintenance, while a lifepo4 battery can have a theoretical lifespan of 7-8 years when used under the same conditions.

Taking all factors into consideration, theoretically, the cost performance ratio is more than four times that of lead-acid batteries. High current discharge can be quickly charged and discharged using high current 2C. Under a dedicated charger, charging at 1.5C for 1.5 minutes can fully charge the battery, and the starting current can reach 2C, while lead-acid batteries do not have such performance.

4. Good temperature performance

The peak temperature of lithium iron phosphate can reach 350 ℃ -500 ℃, while lithium manganese oxide and lithium cobalt oxide are only around 200 ℃. The working temperature range is wide (-20C -+75C), and it is resistant to high temperatures. The peak heating of lithium iron phosphate can reach 350 ° C-500 ° C, while lithium manganese oxide and lithium cobalt oxide are only at 200 ° C.

5. Lifepo4 battery with high capacity
It has a larger capacity than ordinary batteries (such as lead-acid). The individual capacity is 5AH-1000AH.

6. No memory effect
Rechargeable batteries operate under conditions of frequent incomplete discharge, and their capacity quickly drops below the rated capacity. This phenomenon is called the memory effect. Memory is similar to nickel hydrogen and nickel cadmium batteries, but lifepo4 batteries do not exhibit this phenomenon. Regardless of the battery's state, it can be charged and used without the need for discharge and recharging.

7. Lightweight Lifepo4 batteries
Lifepo4 batteries with the same capacity specifications are two-thirds the volume and one-third the weight of lead-acid batteries.

8. Lifepo4 battery environmental protection
Batteries are generally considered to contain no heavy metals or rare metals (nickel hydrogen batteries require rare metals), are non-toxic (SGS certified), pollution-free, comply with European RoHS regulations, and are an absolute green battery certificate

Therefore, the reason why lithium batteries are favored by the industry is mainly due to environmental considerations. Therefore, batteries have been included in the "863" National High tech Development Plan during the "Eleventh Five Year Plan" period and have become a key project supported and encouraged by the state for development.

With China's accession to the WTO, the export volume of electric bicycles in China will rapidly increase, and electric bicycles entering Europe and America have been required to be equipped with pollution-free batteries.

The performance of lithium-ion batteries mainly depends on the positive and negative electrode materials. Lithium iron phosphate is a lithium battery material that has only emerged in recent years. Its safety performance and cycle life are incomparable to other materials. The most important technical indicators of batteries.

Lifepo4 batteries have the advantages of being non-toxic, pollution-free, with good safety performance, a wide range of raw materials, low cost, and long service life. It is an ideal positive electrode material for the new generation of lithium-ion batteries.