Recovery Of Electrodic Powder From Spent Lithium Ion Batteries (LIBs)

Archives of Metallurgy and Materials

G.J. Jung¹  C.Y. Kang²  J.P. Wang²  Woo-Jin Lee²  S.M. Shin³ 

[1] DEPARTMENT OF ARCHITECTURAL ENGINEERING, PUKYONG NATIONAL UNIVERSITY, BUSA 608-737, KOREA;DEPARTMENT OF METALLURGICAL ENGINEERING, PUKYONG NATIONAL UNIVERSITY, BUSAN 608-739, KOREA;EXTRACTIVE METALLURGY GROUP, KOREA INSTITUTE OF GEOSCIENCE AND MINERAL RESOURCES, DEAJEON 305-350, KOREA

关键词: Keywords: Lithium ion battery;    Electrodic powder;    Cobalt;    Lithium;    Thermal treatment;   

DOI  :  10.1515/amm-2015-0086

学科分类：金属与冶金

来源: Akademia Gorniczo-Hutnicza im. Stanislawa Staszica / University of Mining and Metallurgy

【 摘 要 】

This study was focused on recycling process newly proposed to recover electrodic powder enriched in cobalt (Co) and lithium (Li) from spent lithium ion battery. In addition, this new process was designed to prevent explosion of batteries during thermal treatment under inert atmosphere. Spent lithium ion batteries (LIBs) were heated over the range of 300°C to 600°C for 2 hours and each component was completely separated inside reactor after experiment. Electrodic powder was successfully recovered from bulk components containing several pieces of metals through sieving operation. The electrodic powder obtained was examined by X-ray diffraction (XRD), energy dispersive X-ray spectroscopy (EDS), and atomic absorption spectroscopy (AA) and furthermore image of the powder was taken by scanning electron microscopy (SEM). It was finally found that cobalt and lithium were mainly recovered to about 49 wt.% and 4 wt.% in electrodic powder, respectively.

【 授权许可】

Unknown