Binary Solvent System for Extraction of Cathode Material From Spent Li-ion Batteries

N. Hossain, Md. Ismail Hossain, P. Ahamed, M. A. Yousuf
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Abstract

An effective method of water and carbon tetrachloride (CCl4) system has been studied to recover metals ions from spent Li-ion battery cathode materials. Leaching of HCl and HCl + H2O2 has been applied individually to dissolve the collected cathode materials. Metal ions dissolved in HCl and HCl + H2O2 has been treated separately with a solution of hexadecyl amine in CCl4. The formation of metal ions-hexadecyl amine complex has been confirmed from UV-visible spectroscopy. Recovery of metals from the produced complex has been carried out via filtration and calcination. The calcined materials has been characterized using Fourier transform infrared spectroscopy (FT-IR),field emission scanning electron microscopy (FESEM), energy dispersive spectroscopy (EDS) andpowder x-ray diffraction (XRD). Dhaka Univ. J. Sci. 69(3): 225-229, 2022 (June)
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双溶剂萃取废锂离子电池正极材料的研究
研究了水-四氯化碳体系回收废旧锂离子电池正极材料中金属离子的有效方法。分别采用HCl和HCl + H2O2浸出法溶解收集的阴极材料。用十六烷基胺CCl4溶液分别处理溶解于HCl和HCl + H2O2中的金属离子。金属离子-十六烷基胺络合物的形成已被紫外可见光谱证实。通过过滤和煅烧从生产的络合物中回收金属。利用傅里叶变换红外光谱(FT-IR)、场发射扫描电镜(FESEM)、能谱(EDS)和粉末x射线衍射(XRD)对煅烧材料进行了表征。达卡大学学报(自然科学版),69(3):225-229,2022 (6)
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