Lithium Battery Recycling and Environmental Protection Treatmen

Lithium battery recycling adopts a three-step method to achieve resource recycling: in the pretreatment stage, discharge treatment and classification screening are conducted; in the material extraction stage, metals are recovered through hydrometallurgy (dissolving metal ions via acid leaching, followed by separation and purification through precipitation, extraction and other methods) or pyrometallurgy; in the recycling stage, the purified metal materials are reprocessed into positive electrode sheets and assembled into new batteries. Recycling 1 ton of lithium batteries can reduce emissions by approximately 5 tons of CO₂, effectively preventing heavy metals and electrolytes from polluting soil and water sources. Currently, the recycling technology for lithium iron phosphate batteries has enabled the performance of recycled materials to be close to that of primary materials, establishing a green closed-loop industrial chain.