The recycling economy of lithium iron phosphate (lifepo4) batteries is significantly higher than that of ternary systems. Its cathode contains no precious metals such as cobalt and nickel (the material cost accounts for only 18%), and the recycling process can achieve 95% material regeneration through mechanical crushing – hydrometallurgy. In 2023, the EU’s “New Battery Regulations” mandate that the lifepo4 recovery rate be at least 90%. Measured data from the Umicore factory in Belgium shows that For every ton of lifepo4 waste, 0.72 tons of iron phosphate (with a purity of 99.2%) and 0.12 tons of lithium salts (equivalent of lithium carbonate) can be extracted. The metal recovery value reaches $1,800 per ton, which is 37% higher than that of lead-acid batteries. China Tower’s secondary utilization project will transform the lifepo4 base station batteries (a total of 100,000 groups), which have been reduced to 70% capacity, into energy storage systems, extending their service life by 8 years and reducing the cost of new battery procurement by 420 million yuan.
The energy consumption and environmental protection advantages of the recycling process are prominent. The wet recovery energy consumption of lifepo4 is 35kWh/ ton (80kWh/ ton for ternary batteries), and the greenhouse gas emissions are only 0.8 tons of CO₂ equivalent/ton (1.9 tons for ternary batteries). The 2024 report of the U.S. Department of Energy indicates that pyrometallurgical recycling of lead-acid batteries generates 0.3 tons of hazardous waste per ton (including lead slag and sulfuric acid mist), while the fluoride emissions from the recovery of lifepo4 are less than 5mg/m³ (up to 120mg/m³ for the lead-acid process). The CATL Bomp Recycling Base adopts a closed-loop design, which has increased the wastewater reuse rate to 98% and reduced the recycling cost per ton to ¥4,500 (the cost of lead-acid recycling is ¥10,200).
Breakthroughs in recycling technology continuously optimize efficiency. The selective acid leaching technology (Patent US2023156789) developed by Brookheim Laboratory has increased the lithium extraction rate from 82% to 99.5% and shortened the leaching time to 1.2 hours (while the traditional process requires 4 hours). The AI sorting system of German ACCURE Company, through spectral analysis (with an accuracy of ±0.01mm), enables the sorting speed of lifepo4 cells to reach 12 cells per second, and the impurity mixing rate is less than 0.3%. Direct regeneration technologies (such as Princeton NuEnergy plasma repair) to be mass-produced in 2025 can reduce the repair cost of cathode materials to 6/kg (18/kg for new materials) and reduce carbon emissions by 89%.
Policy-driven establishment of a recycling network. The EU requires that the lifepo4 recycling coverage rate reach 75% by 2027, and producers need to prepay a recycling deposit of €0.8/kg. China’s “Interim Measures for the Management of the Recycling and Utilization of Power Batteries in New Energy Vehicles” stipulates that vehicle manufacturers must assume the responsibility for battery traceability. Shenzhen has already established 42 recycling outlets (with a service radius of 15 kilometers). The recycling plant of Redwood Materials in Nevada, USA, processes 20GWh of lifepo4 batteries annually (accounting for 31% of the total in the United States), with a metal recovery rate of 98.4%.
Economic models verify sustainability. The residual value rate of lifepo4 recycling reaches 42% (28% for lead-acid batteries). The value of one ton of recycled waste materials is ¥15,000 (processing cost ¥6,200), and the net benefit is ¥8,800. Bloomberg NEF estimates that the global lifepo4 recycling market size will reach 12 billion US dollars by 2030, with the proportion of secondary utilization rising to 35% (only 12% in 2023). Catl’s “Battery Bank” model reduces the full-cycle cost of electric vehicle battery packs by 31% through the integration of leasing and recycling, saving users an average of ¥4,300 per year. In the future, solid electrolyte separation technologies (such as 24M technology) will further reduce the energy consumption for recovery by 35%, fully realizing the “urbanization of mineral deposits”.