Lithium iron phosphate batteries are lithium ion batteries that use lithium iron phosphate as the cathode material. And lithium battery is a kind of lithium metal or lithium alloy as the anode material, the use of non-aqueous electrolyte solution battery.
Advantages of lithium iron phosphate battery
1, long service life: lithium iron phosphate battery has a long life, cycle life of more than 2000 times, in the same conditions, lithium iron phosphate battery can be used for 7-8 years.
2, the use of safety: lithium iron phosphate battery after strict safety testing, even in traffic accidents will not explode.
3, energy saving and environmental protection: lithium iron phosphate battery green, non-toxic, non-polluting, raw materials from a wide range of sources, inexpensive.
4, fast charging: using a special charger, 1.5C charging 40 minutes to make the battery full.
5, high temperature resistance: lithium iron phosphate batteries are resistant to high temperature, the battery hot air value can reach 350-500 ℃.
6, large capacity: lithium iron phosphate battery has a large capacity.
Disadvantages of lithium iron phosphate battery
1, lithium iron phosphate battery positive pole of the real density is small, the density is generally around 0.8-1.3.
2, poor electrical conductivity, lithium ion diffusion is slow, high times charge and discharge, the actual specific capacity is low.
3, poor low temperature performance of lithium iron phosphate battery.
4, lithium iron phosphate battery single battery life is long, in 2000 times, but the life of the lithium iron phosphate battery pack is short, generally about 500 times.
Application areas of lithium iron phosphate battery
Large electric vehicles, light electric vehicles, power tools, solar and wind power storage equipment, UPS and emergency lights, warning lights and mining lights, small medical equipment and portable instruments.
Advantages of lithium battery
1, high energy, with high storage energy density, can reach 460-600Wh/kg, 6-7 times of lead-acid batteries.
2, with a high power tolerance, including electric vehicles with lithium iron phosphate batteries can reach 15-30C charge and discharge capacity, to facilitate high-intensity startup acceleration.
3, light weight, the same volume under the weight of about 1/6-1/5 of the lead-acid products.
4, high and low temperature adaptability, can be used in -20-60 ℃ environment, after the process, can be used in -45 ℃ environment.
5, green environmental protection, regardless of production, use and scrap, do not contain any lead, mercury, cadmium and other toxic and harmful heavy metal elements and substances.
Disadvantages of lithium batteries
1, lithium batteries can not be high-current discharge, expensive, poor security.
2, lithium batteries are required to protect the line to prevent the battery overcharge and overdischarge.
3, the production requirements of high conditions, high cost.
4, the use of conditions have restrictions, high and low temperature use of dangerous.
Application areas of lithium batteries
Transportation power supply, electric power storage power supply, mobile communication power supply, new energy storage power supply, aerospace military power supply.
Lithium iron phosphate battery and lithium battery difference
1, lithium iron phosphate batteries are used to do lithium-ion secondary batteries, the main direction is now power batteries, relative to Ni-H, Ni-Cd batteries have great advantages.
2, lithium battery is a class of lithium metal or lithium alloy for the positive material, the use of non-aqueous electrolyte solution battery. The chemical characteristics of lithium metal is very active, making lithium metal processing, preservation, use, environmental requirements are very high.
3, lithium iron phosphate battery will not fire and explosion, lithium battery will.
4, lithium iron phosphate overcharge resistance, to 100% will not fire and explode, lithium batteries reach the specified value will be bulging.