The working principle and 9 major advantages of lithium iron phosphate batteries
How lithium iron phosphate batteries work？
Lithium iron phosphate battery refers to a lithium-ion battery using lithium iron phosphate as the positive electrode material. The cathode materials of lithium-ion batteries mainly include lithium cobalt oxide, lithium manganate, lithium nickel oxide, ternary materials, lithium iron phosphate, etc.
The cathode of lithium-ion batteries is made of lithium iron phosphate material, which has great advantages in safety performance and cycle life. This is also one of the most important technical indicators of power batteries. The 1C charge and discharge cycle life can reach 2,000 times, it will not explode when punctured, and it will not easily burn or explode when overcharged. Lithium iron phosphate cathode material makes large-capacity lithium-ion batteries easier to use in series.
Lithium iron phosphate battery refers to a lithium-ion battery using lithium iron phosphate as the positive electrode material. Lithium-ion battery cathode materials mainly include lithium cobalt oxide, lithium manganate, lithium nickel oxide, ternary materials, lithium iron phosphate, etc. Among them, lithium cobalt oxide is the cathode material used in most lithium-ion batteries. In terms of material principles, Lithium iron phosphate is also an intercalation and deintercalation process, exactly the same as lithium cobalt oxide and lithium manganate.
Lithium iron phosphate battery is a lithium-ion secondary battery. One of its main uses is power battery. It has great advantages compared with nickel metal hydride and nickel cadmium batteries.
Lithium iron phosphate batteries have high charge and discharge efficiency, and the charge and discharge efficiency can reach more than 90% under rate discharge, while lead-acid batteries are about 80%.
9 major advantages of lithium iron phosphate batteries
Improve safety performance
The PO bonds in lithium iron phosphate crystals are stable and not easily decomposed. Even under high temperature or overcharge conditions, it will not collapse and generate heat like lithium cobalt oxide, nor will it form strong oxidizing substances, so it has good safety.
Improve lifespan
Lithium iron phosphate battery refers to a lithium-ion battery using lithium iron phosphate as the positive electrode material.
Good high temperature performance
The electric heating peak of lithium iron phosphate batteries can reach 350℃-500℃, while that of lithium manganate and lithium cobalt oxide is only around 200℃. The operating temperature range is wide (-20C-+75C). The high-temperature-resistant lithium iron phosphate electric heating peak can reach 350℃-500℃, while the lithium manganate and lithium cobalt oxide are only around 200℃.
High capacity
Has a larger capacity than ordinary batteries (lead-acid, etc.). The monomer capacity is 5AH-1000AH.
no memory effect
Rechargeable batteries often operate fully charged and their capacity quickly drops below their rated capacity. This phenomenon is called the memory effect. But lithium iron phosphate batteries do not have this phenomenon. No matter what condition the battery is in, it can be used at any time, and there is no need to discharge it before charging.
Lightweight design, easy to move
The volume of a lithium iron phosphate battery with the same specifications and capacity is 2/3 that of a lead-acid battery, and its weight is 1/3 that of a lead-acid battery.
Environmental friendly
Batteries are generally considered to be free of any heavy metals and rare metals (nickel metal hydride batteries require rare metals), non-toxic (SGS certified), non-polluting, compliant with European RoHS regulations, and absolutely green battery certificates.
Power battery comparison
At present, the most promising cathode materials for power lithium-ion batteries mainly include modified lithium manganate (LiMn2O4), lithium iron phosphate (LiFePO4) and lithium nickel cobalt manganate (Li(Ni,Co,Mn)O2) ternary materials. Due to the lack of cobalt resources, high nickel-cobalt formation rate, and large price fluctuations, the ternary material of lithium nickel-cobalt manganate is generally considered difficult to become the mainstream of electric vehicle power lithium-ion batteries, but it can be compared with spinel manganate. Lithium is used in combination within a certain range.
Industry application
Carbon-coated aluminum foil brings technological innovation and industrial improvement to the lithium battery industry; improves the performance of lithium battery products and increases the discharge rate.