Lithium iron phosphate battery refers to a lithium-ion battery that uses lithium iron phosphate as a positive electrode material. The cathode materials of lithium-ion batteries mainly include lithium cobaltate, lithium manganate, lithium nickelate, ternary materials, lithium iron phosphate, and so on. Among them, lithium cobalt oxide is currently the cathode material used in most lithium-ion batteries.
Lithium iron phosphate batteries have the following advantages:
1. The cycle life is more than 2000 times;
2. Wide working temperature (-20℃~75℃), good high-temperature performance;
3. There is no memory effect, no matter what the state of the battery is, it can be charged and used at any time, no need to discharge and then charge;
4. Lightweight, the volume of the lithium iron phosphate battery of the same specification and capacity is 2/3 of the volume of the lead-acid battery, and the weight is 1/3 of the lead-acid battery;
5. Good safety performance, does not contain any heavy metals and rare metals, non-toxic, non-polluting, in line with European RoHS regulations, is a green battery.
Lithium iron phosphate batteries also have their shortcomings: for example, poor low-temperature performance, the low tap density of the cathode material, and the volume of a lithium iron phosphate battery of equal capacity are larger than that of lithium-ion batteries such as lithium cobalt oxide, so it has no advantage in miniature batteries. When used in power batteries, lithium iron phosphate batteries, like other batteries, need to face battery consistency issues.
Lithium iron phosphate batteries are widely used in electric vehicles, power tools, energy storage equipment for solar and wind power generation, UPS and emergency lights warning lights and miner's lamps, small medical equipment and portable equipment, etc.
