Agarwal Shubhangee, Dhiman Soniya, Gupta Himanshu
Department of Chemistry, School of Sciences, IFTM University, Lodhipur Rajput, Moradabad, 244102, Uttar Pradesh, India.
Department of Biochemical Engineering and Biotechnology, Indian Institute of Technology, Delhi, 110016, New Delhi, India.
Environ Sci Pollut Res Int. 2024 May;31(23):34249-34257. doi: 10.1007/s11356-024-33537-x. Epub 2024 May 3.
In view of the importance of environmental protection and resource recovery, recycling of spent lithium ion batteries (LIBs) is quite necessary. In the present study, lithium and copper are recycled to lithium carbonate and copper oxide from anode electrode material of the spent LIBs. The anode electrode material is firstly treated with hydrochloric acid to leach lithium (96.6%) and then with nitric acid to leach copper (97.6%). Furthermore, lithium and copper are recovered as lithium carbonate and copper oxide from their respective solutions using precipitation and calcinations. These synthesized products are further characterized using XRD, FE-SEM, and EDX analysis. Finally, a simple process is proposed for the recovery of lithium and copper from anode electrode material of spent LIBs.
鉴于环境保护和资源回收的重要性，废旧锂离子电池（LIBs）的回收利用非常必要。在本研究中，从废旧LIBs的负极材料中回收锂和铜，分别制成碳酸锂和氧化铜。首先用盐酸处理负极材料以浸出锂（浸出率96.6%），然后用硝酸浸出铜（浸出率97.6%）。此外，通过沉淀和煅烧从各自的溶液中回收锂和铜，分别制成碳酸锂和氧化铜。使用X射线衍射（XRD）、场发射扫描电子显微镜（FE-SEM）和能谱分析（EDX）对这些合成产物进行进一步表征。最后，提出了一种从废旧LIBs负极材料中回收锂和铜的简单工艺。
