LiFePO4 and Lithium-ion batteries are among the most widely used batteries today. However, LiFePO4 batteries are increasingly surpassing lithium-ion in many areas. When it comes to lifespan, lithium iron phosphate (LiFePO4) batteries clearly outperform lithium-ion batteries, offering two to three times longer service life. The key reason is that lithium-ion cells tend to degrade faster, especially under high temperatures, while LiFePO4 remains more stable.

Here are the main differences between the two technologies:

• Battery Life: LiFePO4 batteries can last 6,000–7,500 cycles (16–20 years), whereas lithium-ion batteries typically last only 500–1,000 cycles (2–3 years).

• Energy Density: Lithium-ion batteries have a higher energy density (150–200 Wh/kg) compared to LiFePO4 (90–120 Wh/kg). This means lithium-ion packs can store more energy in a smaller size and weight.

• Safety: LiFePO4 is considered safer, as its phosphate cathode ensures thermal stability even during fast charging, preventing risks of fire or explosion. Lithium-ion cells, however, are less stable under stress, making them more prone to overheating, short circuits, and thermal runaway.

• Cost: Lithium-ion batteries are generally more expensive than LiFePO4, making LiFePO4 the more cost-effective option considering its longer lifespan.

• Discharge Rate: LiFePO4 batteries support a higher discharge rate, allowing them to deliver more usable power when needed. Lithium-ion batteries, in comparison, have lower discharge rates.

• Environmental Impact: LiFePO4 batteries are more eco-friendly, as they are made from materials that can be recycled and have lower environmental risks. Lithium-ion batteries, on the other hand, contain materials that are harder to recycle and pose a higher environmental burden.