Should lithium iron phosphate batteries be recycled?

However, the thriving state of the lithium iron phosphate battery sector suggests that a significant influx of decommissioned lithium iron phosphate batteries is imminent. The recycling of these batteries not only mitigates diverse environmental risks but also decreases manufacturing expenses and fosters economic gains.

What is the capacity of lithium iron phosphate pouch cells?

The present experiment employed lithium iron phosphate pouch cells featuring a nominal capacity of 30 Ah, procured from a recycling facility situated in Hefei City (electrochemical assessments disclosed an effective capacity amounting to only 70 % of the initial capacity).

What is solid-phase restoration of lithium iron phosphate?

Solid-phase restoration of lithium iron phosphate (Ji et al., 2023, Li et al., 2017, Liu et al., 2021, Sun et al., 2020): The solid-phase method uses fewer chemical reagents, is less prone to secondary pollution, and is suitable for large-scale industrial production.

How does lithium FEPO 4 regenerate?

The persistence of the olivine structure and the subsequent capacity reduction are attributable to the loss of active lithium and the migration of Fe 2+ ions towards vacant lithium sites (Sławiński et al., 2019). Hence, the regeneration of LiFePO 4 crucially hinges upon the reinstatement of active lithium and the rectification of anti-site defects.

Can lithium iron phosphate positive electrodes be recycled?

Traditional recycling methods, like hydrometallurgy and pyrometallurgy, are complex and energy-intensive, resulting in high costs. To address these challenges, this study introduces a novel low-temperature liquid-phase method for regenerating lithium iron phosphate positive electrode materials.

Can a low-temperature liquid-phase method promote the circular economy of lithium-ion batteries?

Furthermore, the proposed low-temperature liquid-phase method can be easily scalable and implemented in various regions worldwide, thereby promoting the circular economy of lithium-ion batteries and reducing reliance on virgin resources (Supplementary Discussion 5). 4. Conclusions