Lithium iron phosphate (LiFePO4), also called LFP, is one of the more recently-developed rechargeable battery chemistries and is a variation of lithium-ion chemistry. Rechargeable lithium iron phosphate batteries use LiFePO4 as the principle cathode material. Despite having a lower energy density than other lithium-ion chemistries, lithium iron phosphate batteries can provide better power density and longer life cycles.
The lithium iron phosphate battery is a type of rechargeable battery based on the original lithium ion chemistry, created by the use of Iron (Fe) as a cathode material. LiFePO4 cells have a higher discharge current, do not explode under extreme conditions and weigh less but have lower voltage and energy density than normal Li-ion cells.
Iron (Fe) is inherently a safer cathode material than cobalt (Co). the Fe-PO bond is stronger than the Co-O bond, making the oxygen atoms more difficult to remove when abused (short-circuiting, overheating, etc.). This stabilization of redox energy also contributes to fast ion migration. Breakdown only occurs under extreme heating (typically over 800C), thus preventing the thermal runaway that typical Li-ion batteries are prone to.
LiFePO4 is highly resilient during oxygen loss, which typically leads to exothermic reactions in other lithium batteries. PCM is not required, but is recommended to maintain cycle life and capacity.
LiFePO4 battery packs and individual cell options
LITHIUM STORAGE is your premier manufacturer of lithium iron phosphate batteries. We manufacture custom lithium iron phosphate battery packs and components for many applications. Our battery design team uses the latest mechanical and electronic design tools to optimize the reliability, safety and manufacturability of your custom LFP battery packs. Our lithium iron phosphate batteries provide cost-effective and reliable charging power for your battery-powered products.
Items to consider before choosing any battery for your project include the following:
Once these items are well understood, then a cell/battery can be selected that provides the requirements necessary for the project to be effectively completed. If your project requires more voltage than your battery provides it is possible to increase the voltage by connecting multiple cells in series. Also, by connecting cells in parallel, you can increase the overall current capacity (run time) of the battery.
Pros and Cons of Lithium Iron Phosphate Batteries
As a custom Li Iron Phosphate Battery Manufacturer, Custom Power produces custom lithium iron phosphate battery packs that can be used for a wide range of custom applications. Our rechargeable lithium iron battery packs use a lithium-ion-derived chemistry that shares many of the same advantages with other lithium ion battery chemistries.
Custom LFP Battery Pack Advantages
Compared to other battery options, custom lithium iron phosphate battery packs provide superior thermal and chemical stability. This allows for improved safety characteristics over lithium-ion batteries that utilize less-safe cathode materials. Rechargeable lithium iron batteries are also virtually incombustible due to mishandling during the charge and discharge processes, which means that they can handle higher temperatures without significant damage. Other major advantages for LiFePO4 when compared to other Li-ion chemistries include higher rate discharge capability and longer cycle life.
Custom LiFePO4 Battery Pack Disadvantages
The energy density of custom lithium iron phosphate battery packs, both by energy and volume, is somewhat lower than that of LiCoO2 cells and batteries. However, while LiFePO4 cells have lower voltage and energy density than other Li-ion cells, this disadvantage is offset over time by a slower rate of capacity loss (greater calendar-life) when compared with other lithium-ion battery chemistries, such as LiCoO2 cobalt or LiMn2O4 manganese spinel.
Like other lithium-ion cells, lithium iron cells and batteries are available in Energy and Power types that provide either better power or energy characteristics, depending on whether a longer run time or high rate discharge is required.
Applications for Lithium Ion Phosphate Batteries
Rechargeable lithium iron battery packs have been a popular choice for electric vehicles thanks to their fast-charge and hi-rate discharge capabilities and long cycle and calendar life. Power tool manufacturers have also adopted the LFP chemistry for the same reasons. Medical device manufacturers and defense contractors are adopting the LFP chemistry for its inherent safety. Some of the industries that regularly utilize LFP batteries, include:
Electric automobile manufacturers
Power tool companies
Medical device manufacturers
Contact LITHIUM STORAGE for Rechargeable Lithium Iron Phosphate Batteries Today
Portable electronic products use batteries as power sources. With the rapid development of portable products, the consumption of various batteries has increased greatly, and many new types of batteries have been developed.