The LiFePO4 battery uses a lithium-ion-derived chemistry and shares many of its advantages and disadvantages with other lithium ion battery chemistries
However, one key advantage over other lithium-ion batteries is the superior thermal and chemical stability, which provides better safety characteristics than lithium-ion batteries with other cathode materials.
Due to significantly stronger bonds between the oxygen atoms in the phosphate (compared to the cobalt), oxygen is not readily released, and as a result, lithium iron phosphate cells are virtually incombustable in the event of mishandling during charge or discharge
, and can handle high temperatures without decomposing.
Lithium Iron Phosphate chemistry also offers a longer cycle life over standard lithium ion cells.
The use of phosphates also reduces the cost, safety and environmental concerns of Cobalt cells, particularly in regards of cobalt entering the environment through improper disposal.
One of the other major advantages for LiFePO4 when compared with LiCoO2 is higher current or peak-power rating.