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"Selective Extraction of Critical Metals from Spent Li-Ion Battery Cath" by Yanqiu Lyu, Jodie A. Yuwono et al.

Owing to continuing global use of lithium-ion batteries (LIBs), in particular in electric vehicles (EVs), there is a need for sustainable recycling of spent LIBs. Deep eutectic solvents (DESs) are reported as “green solvents” for low-cost and sustainable recycling. However, the lack of understanding of the coordination mechanisms between DESs and transition metals (Ni, Mn and Co) and Li makes selective separation of transition metals with similar physicochemical properties practically difficult. Here, it is found that the transition metals and Li have a different stable coordination structure with the different anions in DES during leaching. Further, based on the different solubility of these coordination structures in anti-solvent (acetone), a leaching and separation process system is designed, which enables high selective recovery of transition metals and Li from spent cathode LiNi1/3Co1/3Mn1/3O2 (NCM111), with recovery of acetone. Recovery of spent LiCoO2 (LCO) cathode is also e ....

Battery Recycling , Deep Eutectic Solvent , Selective Recovery , Spent Lithium Ion Batteries ,

Powering desalination - The Hindu BusinessLine

Powering desalination - The Hindu BusinessLine
thehindubusinessline.com - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from thehindubusinessline.com Daily Mail and Mail on Sunday newspapers.

Nipu Kumar Das , Department Of Chemical Engineering , Indian Institute Of Technology Guwahati , Indian Institute , Technology Guwahati , Prof Tamal Banerjee , Chemical Engineering , Deep Eutectic Solvent ,