An environmental benign process for cobalt and lithium recovery from spent lithium-ion batteries by mechanochemical approach

CORC > 生态环境研究中心 > 中国科学院生态环境研究中心 > 固体废弃物处理与资源化实验室

	An environmental benign process for cobalt and lithium recovery from spent lithium-ion batteries by mechanochemical approach
	Wang, Meng-Meng; Zhang, Cong-Cong; Zhang, Fu-Shen
刊名	WASTE MANAGEMENT
	2016-05
卷号	51 页码:239-244
关键词	Spent lithium-ion batteries Mechanochemical approach Lithium cobalt oxide EDTA Metal recovery
英文摘要	In the current study, an environmental benign process namely mechanocheinical approach was developed for cobalt and lithium recovery from spent lithium-ion batteries (LIBs). The main merit of the process was that neither corrosive acid nor strong oxidant was applied. In the proposed process, lithium cobalt oxide (obtained from spent LIBs) was firstly co-grinded with various additives in a hermetic ball milling system, then Co and Li could be easily recovered by a water leaching procedure. It was found that EDTA was the most suitable co-grinding reagent, and 98% of Co and 99% of Li were respectively recovered under optimum conditions: LiCoO2 to EDTA mass ratio 1:4, milling time 4 h, rotary speed 600 r/min and ball-to-powder mass ratio 80:1, respectively. Mechanisms study implied that lone pair electrons provided by two nitrogen atoms and four hydroxyl oxygen atoms of EDTA could enter the empty orbit of Co and Li by solid-solid reaction, thus forming stable and water-soluble metal chelates Li-EDTA and Co-EDTA. Moreover, the separation of Co and Li could be achieved through a chemical precipitation approach. This study provides a high efficiency and environmentally friendly process for Co and Li recovery from spent LIBs. (C) 2016 Elsevier Ltd. All rights reserved.
收录类别	SCI
内容类型	期刊论文
源URL	[http://ir.rcees.ac.cn/handle/311016/35775]
专题	生态环境研究中心_固体废弃物处理与资源化实验室
推荐引用方式 GB/T 7714	Wang, Meng-Meng,Zhang, Cong-Cong,Zhang, Fu-Shen. An environmental benign process for cobalt and lithium recovery from spent lithium-ion batteries by mechanochemical approach[J]. WASTE MANAGEMENT,2016,51:239-244.
APA	Wang, Meng-Meng,Zhang, Cong-Cong,&Zhang, Fu-Shen.(2016).An environmental benign process for cobalt and lithium recovery from spent lithium-ion batteries by mechanochemical approach.WASTE MANAGEMENT,51,239-244.
MLA	Wang, Meng-Meng,et al."An environmental benign process for cobalt and lithium recovery from spent lithium-ion batteries by mechanochemical approach".WASTE MANAGEMENT 51(2016):239-244.