| Title |
Metal coordination combining with electrodialysis for one-step separation of valuable metals from spent lithium-ion batteries |
| ID_Doc |
12864 |
| Authors |
Chen, LJ; Liang, WY; Zhang, YJ; Wang, BY; Song, XJ; Abdel-Ghafar, HM; Zhang, LX; Jiang, HQ |
| Title |
Metal coordination combining with electrodialysis for one-step separation of valuable metals from spent lithium-ion batteries |
| Year |
2024 |
| Published |
|
| DOI |
10.1016/j.cej.2024.150882 |
| Abstract |
Efficient recycling of valuable metals from spent lithium-ion batteries (LIBs) is essential for the circular economy and ecological environment. However, the simultaneous separation and recovery of multiple metal ions face a huge challenge due to their similar physicochemical properties. Herein, we propose metal coordination combing with electrodialysis to achieve one-step separation of lithium, cobalt, and nickel. By regulating the ligands and ligand concentration, the Co2+ selectively coordinates with ligand to form anionic complex, which passes through the home-made anionic polymer inclusion membrane under electric field. Li+ passes through the monovalent cationic exchange membrane, whereas the Ni2+ is retained in the feed solution, thereby achieving the one-step separation of metal ions. When using NH4SCN as ligand, the transport flux of Li+ and Co(SCN)(4)(2-) reaches around 25.0 mu mol m(-2) s(-1) and 12.7 mu mol m(-2) s(-1), respectively. Meanwhile, the separation efficiency of lithium and cobalt is 80 % and 95 %, respectively at the NH4SCN concentration of 0.1 M and current density of 10 mA/cm(2). Additionally, sustainable solar energy is successfully applied to drive the electrodialysis system, and the purity of lithium, cobalt, and nickel is as high as 94.3 %, similar to 100 %, and 99.2 %, respectively, demonstrating great potential in decreasing energy consumption. This work which applies metal coordination combining with electrodialysis for one-step separation of lithium, cobalt, and nickel, provides a promising candidate for the recycling of valuable metals from spent LIBs. |
| Author Keywords |
Recovery of valuable metals; Metal coordination; Electrodialysis; Lithium-ion batteries; Solar-driven |
| Index Keywords |
Index Keywords |
| Document Type |
Other |
| Open Access |
Open Access |
| Source |
Science Citation Index Expanded (SCI-EXPANDED) |
| EID |
WOS:001228502900001 |
| WoS Category |
Engineering, Environmental; Engineering, Chemical |
| Research Area |
Engineering |
| PDF |
|