Everything You Need to Know About Lifepo4 Battery Cell: Chemistry, Construction and Performance

Lithium iron phosphate (LiFePO4) battery cells have been growing in popularity in recent years due to their superior performance, longer lifespan, and safety features compared to other battery chemistries. As a blogger and expert in lithium batteries, I’ll provide a comprehensive guide to everything you need to know about LiFePO4 battery cells, including their chemistry, construction, and performance.

Chemistry of LiFePO4 Battery Cell:

LiFePO4 battery cells use a cathode made of lithium iron phosphate, an anode made of carbon, and an electrolyte made of lithium salt. The lithium iron phosphate cathode is a stable and non-toxic compound that offers a high degree of safety compared to other cathode materials. LiFePO4 cells have a nominal voltage of 3.2V and a specific energy of 120-140 Wh/kg.

Construction of LiFePO4 Battery Cell:

LiFePO4 cells come in a variety of sizes, but the most common form is the cylindrical 18650 cell. These cells are about the same size as a AA battery and are used in applications such as electric vehicles, solar power storage, and backup power systems. LiFePO4 cells are constructed by stacking layers of the cathode, anode, and separator in a tightly wound cylindrical shape. The cells are then sealed and inserted into a metal casing to protect them from damage.

Performance of LiFePO4 Battery Cell:

LiFePO4 cells have many advantages over other battery chemistries, including:

  1. High energy density: LiFePO4 cells have a high energy density compared to other lithium-ion batteries, allowing them to store more energy in a smaller size.
  2. Long lifespan: LiFePO4 cells have a longer lifespan than other lithium-ion batteries, with a cycle life of up to 2000 cycles.
  3. Fast charging: LiFePO4 cells can be charged quickly, with charging times as low as one hour.
  4. Safety: LiFePO4 cells are safe to use and have a lower risk of thermal runaway compared to other lithium-ion batteries.

Redway Power, a custom LiFePO4 OEM manufacturer, is a leading supplier of LiFePO4 battery cells and battery packs. Their LiFePO4 batteries are designed for use in various applications such as solar power storage, electric vehicles, and backup power systems.


In conclusion, LiFePO4 battery cells are an excellent choice for applications requiring high energy density, long lifespan, fast charging, and safety. Their stable chemistry and superior performance make them ideal for use in a wide range of applications. With a custom LiFePO4 OEM manufacturer like Redway Power, you can be assured of the quality and reliability of your LiFePO4 batteries.