Study on the recovery and regeneration of lithium cobalt oxide batteries using the ternary eutectic solvent
LI Huilong
XIA Bing
WANG Guoqing
Abstract：To efficiently recover the valuable metals from spent lithium-ion batteries and reduce environmental pollution,this study employs a novel eco-friendly ternary eutectic solvent for recycling the high value metals cobalt and lithium.The leaching rate of cobalt and lithium can reach 99.76% and 99.29%respectively at 140℃,5 h and L/S=50∶1.Meanwhile,molecular dynamics during leaching demonstrate that the leaching process is controlled by interfacial chemical reactions.The leaching products were further regenerated into lithium cobalt oxide cathode materials,which exhibited electrochemical performance comparable to commercial lithium cobalt oxide cathode materials.The proposed method utilizes ternary eutectic solvents to achieve efficient and environmentally friendly recycling and regeneration of lithium cobalt oxide cathode materials,showing promising application prospects.
Keywords：lithium-ion batteryternary eutectic solventefficient leachingrecycling
Publication Date：2026-02-25
Online Publishing Date：2026-03-13(First online date of this platform, not the publication date of the document)
Pages：8( 9-16 )