TopTechnical DictionaryLithium-Iron-Phosphate LiFePO4 Battery

Lithium-Iron-Phosphate LiFePO4 Battery

Lithium-iron-phosphate batteries, designated as LiFePO4, are one type of lithium battery. Compared to traditional AGM batteries, they are distinguished by, among other things, their long service life and much lighter weight.

LiFePO4 batteries are composed of cells connected in series, each generating a voltage of about 3.2V.

 

Construction and operation

 

The components of a LiFePO4 battery include the anode, cathode, separator, electrolyte and electrodes. During charging and discharging, lithium ions move between the anode and cathode through the separator. This movement of ions causes electrons to flow through the external circuit, which generates an electric current.

 

Photo 1 - Example LiFePO4 batteries from our offer - GREEN CELL

 

Application

 

LiFePO4 batteries are becoming a valued solution in many fields due to their advantages. Due to their high efficiency and increased resistance to harsh conditions, they will do a great job in such areas as:

  • energy storage,
  • wind power plants and photovoltaic installations,
  • emergency power supply (UPS),
  • motorization (boats, RVs, electric vehicles),
  • alarm systems,
  • mobile monitoring towers.

     

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    Main benefits of LiFePO4 batteries

     

  • THERMIC STABILITY (low susceptibility to overheating and heat damage).
  • LONG LIFE (compared to other batteries, they can be charged and discharged for more cycles without performance degradation).
  • ENVIRONMENTAL-FRIENDLY (contain no heavy metals).
  • WEIGHT (much lighter compared to AGM batteries, for example).
  • EFFICIENCY (can withstand deep discharges without reducing capacity).
  • BMS CONTROL SYSTEM (overcharge protection).

     

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    Disadvantages of LiFePO4 batteries

     

  • LOWER ENERGY DENSITY compared to traditional Li-Ion batteries.
  • CHARGING IN TEMPERATURE ABOVE 0°C.

     

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    Lifetime

     

    The battery life cycle involves the process of discharging the battery from full charge to zero, and then recharging it again. The average life of LiFePO4 cells is about 3500-5000 cycles. In practice, this means that the battery will perform optimally for many years, after which there may be a gradual degradation of performance.

    It is worth mentioning that the aforementioned batteries can be successfully used at low temperatures without losing capacity.

     

    Photo 2 - Example LiFePO4 charger from our offer - LIFEPO4-CHARG/14.6V/10A-GC