Lithium iron phosphate battery refers to lithium ion battery using Ferrous lithium phosphate as cathode material. Lithium battery is a kind of battery with lithium metal or lithium alloy as negative electrode material and non-aqueous electrolyte solution.

Advantages of lithium iron phosphate battery

1. Ultra-long service life: Lithium iron phosphate battery has a long service life, with a cycle life of more than 2,000 times. Under the same conditions, lithium iron phosphate battery can be used for 7-8 years.

2. Safety in use: The lithium iron phosphate battery has undergone strict safety tests, and it will not explode even in traffic accidents.

3. Energy saving and environmental protection: Lithium iron phosphate battery is green, non-toxic and pollution-free, with wide sources of raw materials and low price.

4. Fast charging: Use a special charger, and charge at 1.5C for 40 minutes to fully charge the battery.

5. High temperature resistance: The lithium iron phosphate battery is high temperature resistant, and the hot air value of the battery can reach 350-500℃.

6. Large capacity: The capacity of lithium iron phosphate battery is large.

Disadvantages of lithium iron phosphate battery

1. The true density of lithium iron phosphate battery anode is small, and the density is generally around 0.8-1.3.

2. Poor conductivity, slow lithium ion diffusion speed, and low actual specific capacity at high charge and discharge.

3. The low-temperature performance of lithium iron phosphate battery is poor.

4. The life of a single lithium iron phosphate battery is about 2000 times, but the life of lithium iron phosphate battery pack is short, generally about 500 times.

Application field of lithium iron phosphate battery

Large electric vehicles, light electric vehicles, electric tools, solar and wind power energy storage equipment, UPS and emergency lights, warning lights and miner's lamps, small medical instruments and portable instruments.

Advantages of lithium battery

1. The energy is relatively high, with high storage energy density, which can reach 460-600Wh/kg, which is 6-7 times that of lead-acid batteries.

2. It has high power tolerance, among which the lithium ion battery of ferrous phosphate used in electric vehicles can reach 15-30C charging and discharging capacity, which is convenient for high-strength startup acceleration.

3. Light weight, which is about 1/6-1/5 of that of lead-acid products in the same volume.

4. It has strong adaptability to high and low temperatures, and can be used in the environment of -20-60℃. After technological treatment, it can be used in the environment of -45℃.

5. Environmental protection, no matter whether it is produced, used or scrapped, it does not contain any toxic and harmful heavy metal elements and substances such as lead, mercury and cadmium.

Disadvantages of lithium battery

1. Lithium batteries can't discharge with high current, which is expensive and poor in safety.

2. The lithium battery shall be protected from overcharge and overdischarge.

3. High production requirements and high cost.

4. The conditions of use are limited, and the danger of high and low temperature use is great.

Application field of lithium battery

Traffic power supply, electric energy storage power supply, mobile communication power supply, new energy storage power supply, aerospace military power supply.

Difference between lithium iron phosphate battery and lithium battery

1. Lithium iron phosphate batteries are used as lithium-ion secondary batteries, and now the main direction is power batteries. Compared with Ni-H, Ni-Cd batteries have great advantages.

2. Lithium battery is a kind of battery with lithium metal or lithium alloy as cathode material and non-aqueous electrolyte solution. The chemical characteristics of lithium are very active, which makes the processing, storage, use and environment of lithium metal very demanding.

3. The lithium iron phosphate battery will not catch fire and explode, but the lithium battery will.

4. Ferrous lithium phosphate is overcharge-resistant, and it won't explode when it reaches 100%. When the lithium battery reaches the specified value, it will swell.