A feasible process for recycling valuable metals from LiNi _0.5 Co _0.2 Mn _0.3 O ₂ cathode materials of spent Li-ion batteries

Highly Selective Extraction of Lithium from Spent NCM Cathode Powder Reconstructive Electrode by Acid-Free Electrochemical Process

“…The first is the potential for environmental contamination due to the improper handling of hazardous chemicals, such as acids, alkalis, and reducing agents, used in the recycling process. 22,23 The second challenge lies in the complexity and timeconsuming nature of the recycling process, and the commonly used separation and purification methods include solvent extraction, 24,25 chemical precipitation, 26,27 and electrodialysis. 28,29 However, lithium recycling typically occurs at the end of the process, leading to lithium loss at various stages and overall low recycling efficiency.…”

“…The recycling technology for spent LIBs is confronted with two main challenges. The first is the potential for environmental contamination due to the improper handling of hazardous chemicals, such as acids, alkalis, and reducing agents, used in the recycling process. , The second challenge lies in the complexity and time-consuming nature of the recycling process, and the commonly used separation and purification methods include solvent extraction, , chemical precipitation, , and electrodialysis. , However, lithium recycling typically occurs at the end of the process, leading to lithium loss at various stages and overall low recycling efficiency. , Therefore, considering the scarcity and irreplaceability of the energy metal lithium, it is imperative to develop an environmentally friendly process for short-range selective lithium extraction.…”