What are LiFePO4 Battery?

A type of lithium-ion battery, the cathode material is named after lithium iron phosphate. It is one of the lithium-ion battery family with higher safety but lower energy density. Because of its strong stability and large discharge rate, it is widely known for its great development prospects in the power source and energy storage of electric vehicles.

Lithium iron phosphate battery refers to a lithium ion battery that uses lithium iron phosphate as a positive electrode material. The lithium battery is a battery that uses lithium metal or lithium alloy as the negative electrode material and uses a non-aqueous electrolyte solution.

Advantages of lithium iron phosphate batteries

1. Long service life: The lithium iron phosphate battery has a long service life, with a cycle life of more than 2000 times. Under the same conditions, the lithium iron phosphate battery can be used for 7-8 years.
2. Safe to use: The lithium iron phosphate battery has undergone strict safety tests and will not explode even in a traffic accident.
3. Energy saving and environmental protection: The lithium iron phosphate battery is green and environmentally friendly, non-toxic, non-polluting, with a wide range of raw materials and low prices.
4. Fast charging: can be combined with our IVEM5048 solar inverter, 500V PV Input.
5. High temperature resistance: The electric heating peak of lithium iron phosphate can reach 350℃-500℃, while lithium manganate and lithium cobaltate are only around 200℃. The working temperature range is wide (-20C--+75C), and the electric heating peak of lithium iron phosphate with high temperature resistance can reach 350℃-500℃, while lithium manganate and lithium cobaltate are only around 200℃.
6. Large capacity: the capacity of lithium iron phosphate battery is large (LPBF48300can reach 15KWH each).

Disadvantages of lithium iron phosphate batteries

1. The real density of the positive electrode of lithium iron phosphate battery is small, and the density is generally around 0.8-1.3.
2. The electrical conductivity is poor, the diffusion rate of lithium ions is slow, and the actual specific capacity is low when charged and discharged at high times.
3. The low temperature performance of lithium iron phosphate battery is poor.

   The advantages of lithium batteries:

   1. High energy and high storage energy density, which can reach 460-600Wh/kg, which is 5-6 times that of lead-acid batteries.
   2. It has high power bearing capacity, among which the lithium iron phosphate battery for electric vehicles can reach 15-30C charge and discharge capacity, which is convenient for high-intensity start-up acceleration.
   3. Light weight, lead-acid battery is 5-6 times heavier than lithium battery under the same volume.
   4. High and low temperature adaptability, can be used in the environment of -20-75 ℃.
   5. Green and environmentally friendly, from production to scrap, it does not contain any toxic and harmful heavy metal elements and substances such as lead, mercury, and cadmium, and is in line with the international trend of carbon neutrality.

   Disadvantages of lithium batteries:

   1. Lithium batteries cannot be discharged at large currents, are expensive and have poor safety.
   2. All lithium batteries need to protect the circuit to prevent the battery from being overcharged and overdischarged.
   3. The production requirements are high and the cost is high.
   4. The use conditions are limited, and the use of high and low temperature is dangerous. The application fields of lithium battery include transportation power supply, electric energy storage power supply, mobile communication power supply, new energy energy storage power supply, aerospace and military power supply.

    

   The difference between lithium iron phosphate batteries and lithium batteries

   1. Lithium iron phosphate batteries are used as lithium ion secondary batteries. Now the main direction is power batteries, which have great advantages over Ni-H and Ni-Cd batteries.
   2. Lithium battery is a kind of battery that uses lithium metal or lithium alloy as positive electrode material and uses non-aqueous electrolyte solution. The chemical properties of lithium metal are very active, which makes the processing, storage, use and environmental requirements of lithium metal very high.
   3. The lithium iron phosphate battery will not catch fire and explode, but the lithium battery will.
   4. Lithium iron phosphate is resistant to overcharge, and will not catch fire and explode to 100%, and the lithium battery will swell when it reaches the specified value. Our Felicitysolarenergy storage lithium batteries have built-in BMS, which is more likely to protect the cells and protect the battery life.