Do LiFePO4 batteries need a SoC?

When considering that LiFePO4 batteries already have a long cycle life compared to other battery chemistries, most designers charge their LiFePO4 batteries to a SOC of 100% because they are limited by the lower energy density.

What makes LiFePO4 batteries different from other lithium ion batteries?

Their good thermal performance, resistance to thermal runaway and long cycle life are what sets LiFePO4 batteries apart from the other options. However, LiFePO4 batteries require special considerations and this document discusses these considerations and how they compare to more traditional Lithium ion (Li-ion) batteries.

What is a lithium iron phosphate (LiFePO4) battery?

Lithium Iron Phosphate (LiFePO4) batteries are one of the plethora of batteries to choose from when choosing which battery to use in a design. Their good thermal performance, resistance to thermal runaway and long cycle life are what sets LiFePO4 batteries apart from the other options.

Do LiFePO4 batteries need a boost converter?

However, LiFePO4 batteries have a lower energy density and lower charge voltage, so they typically have to take up more area compared to a Li-ion battery. Furthermore, due to the lower charge voltage, a LiFePO4 battery may need a boost converter when a Li-ion may not.

What is the charge profile of a LiFePO4 battery?

This charge profile is a standard Pre-charge, CC, and CV charge profile, however, since LiFePO4 and Li-ion batteries have different voltage profiles, these stages in the charge profile happen at different voltages. For Li-ion batteries, VOREG≈ 3.9-4.2 V, VPrecharge ≈ 3.0 V, and VShort ≈ 2.0 V.

Are LiFePO4 batteries safe?

Safety: One of the most notable features of LiFePO4 batteries is their inherent thermal stability. They are less prone to overheating and combustion compared to other lithium battery chemistries, making them a safer option, especially in high-temperature environments.