Adaptable Eutectic Salt for the Direct Recycling of Highly Degraded Layer Cathodes

doi:10.1021/jacs.2c07860

IMR OpenIR

	Adaptable Eutectic Salt for the Direct Recycling of Highly Degraded Layer Cathodes
	Ma, Jun 1,2; Wang, Junxiong 1,2,3; Jia, Kai 1,2,3; Liang, Zheng 3; Ji, Guanjun 1,2,3; Zhuang, Zhaofeng 1,2; Zhou, Guangmin 1,2; Cheng, Hui-Ming 4,5
通讯作者	Liang, Zheng(liangzheng06@sjtu.edu.cn) ; Zhou, Guangmin(guangminzhou@sz.tsinghua.edu.cn) ; Cheng, Hui-Ming(hm.cheng@siat.ac.cn)
	2022-10-13
发表期刊	JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
ISSN	0002-7863
页码	9
摘要	Recycling spent lithium-ion batteries (LIBs) is promising for resource reuse and environmental conservation but suffers from complex processing and loss of embedded value of spent LIBs in conventional metallurgy-based recycling routes. Herein, we selected a eutectic LiI-LiOH salt with the lowest eutectic point among binary eutectic lithium salt systems to provide a Li-rich molten environment, not only offering excess lithium but benefiting ion diffusion compared with that in the solid environment. Hence, the highly degraded LiNi0.5Co0.2Mn0.3O2 in spent LIBs which suffers high Li-deficiency and serious structural defects with harmful phase transitions is directly regenerated. A facile one-step heating strategy in the presence of a combination of the eutectic lithium salt and Co2O3 and MnO2 additives not only simplifies the recycling process but also endows the cathode materials with lithium supplementation and structural ordering, which contributes to a restoration of the capacity and stable cycling performance. In particular, this eutectic salt with a low eutectic point helps decrease the temperature and time of the direct recycling process and shows good adaptability for other layer oxide cathode materials (LiCoO2 and LiNi0.6Co0.2Mn0.2O2) in spent LIBs with varying cathode chemistry. As such, the feasibility of the direct recycling route is improved and broadened with simple and efficient processing, providing an idea for energy-saving cathode regeneration in future LIB recycling.
资助者	National Key Research and Development Program of China ; National Natural Science Foundation of China ; Interdisciplinary Research and Innovation Fund of Tsinghua Shenzhen International Graduate School ; Tsinghua Shenzhen International Graduate School ; Shanghai Jiao Tong University
DOI	10.1021/jacs.2c07860
收录类别	SCI
语种	英语
资助项目	National Key Research and Development Program of China[2021YFB2500200] ; National Key Research and Development Program of China[2019YFA0705700] ; National Natural Science Foundation of China[52072205] ; National Natural Science Foundation of China[U21A20174] ; Interdisciplinary Research and Innovation Fund of Tsinghua Shenzhen International Graduate School ; Tsinghua Shenzhen International Graduate School ; Shanghai Jiao Tong University
WOS研究方向	Chemistry
WOS类目	Chemistry, Multidisciplinary
WOS记录号	WOS:000871018500001
出版者	AMER CHEMICAL SOC
引用统计	被引频次：89[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/176339
专题	中国科学院金属研究所
通讯作者	Liang, Zheng; Zhou, Guangmin; Cheng, Hui-Ming
作者单位	1.Tsinghua Univ, Tsinghua Berkeley Shenzhen Inst, Shenzhen 518055, Peoples R China 2.Tsinghua Univ, Tsinghua Shenzhen Int Grad Sch, Shenzhen 518055, Peoples R China 3.Shanghai Jiao Tong Univ, Frontiers Sci Ctr Transformat Mol, Sch Chem & Chem Engn, Shanghai 200240, Peoples R China 4.Chinese Acad Sci, Fac Mat Sci & Engn, Inst Technol Carbon Neutral, Shenzhen Inst Adv Technol, Shenzhen 518055, Peoples R China 5.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Chinan, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Ma, Jun,Wang, Junxiong,Jia, Kai,et al. Adaptable Eutectic Salt for the Direct Recycling of Highly Degraded Layer Cathodes[J]. JOURNAL OF THE AMERICAN CHEMICAL SOCIETY,2022:9.
APA	Ma, Jun.,Wang, Junxiong.,Jia, Kai.,Liang, Zheng.,Ji, Guanjun.,...&Cheng, Hui-Ming.(2022).Adaptable Eutectic Salt for the Direct Recycling of Highly Degraded Layer Cathodes.JOURNAL OF THE AMERICAN CHEMICAL SOCIETY,9.
MLA	Ma, Jun,et al."Adaptable Eutectic Salt for the Direct Recycling of Highly Degraded Layer Cathodes".JOURNAL OF THE AMERICAN CHEMICAL SOCIETY (2022):9.