气候变化领域集成服务门户(CCPortal): Sustainable upcycling of spent LiCoO2 to an ultra-stable battery cathode at high voltage

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DOI	10.1038/s41893-023-01094-9
	Sustainable upcycling of spent LiCoO2 to an ultra-stable battery cathode at high voltage
	Wang, Junxiong; Jia, Kai; Ma, Jun; Liang, Zheng; Zhuang, Zhaofeng; Zhao, Yun; Li, Baohua; Zhou, Guangmin; Cheng, Hui-Ming
发表日期	2022
ISSN	2398-9629
页码	12
英文摘要	Recycling forms an essential dimension of batteries' sustainability. Here the authors show a straightforward process that directly upgrades spent LiCoO2 to a Mg and Al co-substituted LiCoO2 cathode with a high voltage of 4.6 V and excellent cycling stability. The continued market growth for electric vehicles globally is accelerating the transformational shift to a low-carbon transportation future. However, the sustainability of this transition hinges to a large extent on the management of waste, including end-of-life batteries where strategic elements such as lithium (Li) and cobalt (Co) are present. Different from the existing pyrometallurgical and hydrometallurgical recycling methods that involve heavy energy inputs and the use of hazardous chemicals, here we show a feasible single-step process that not only reclaims lithium cobalt oxide (LiCoO2) from waste Li-ion batteries but also upgrades it to a cathode with enhanced electrochemical properties. Our recycling process is based on a direct reaction between spent LiCoO2 and added mixture of Al2O3, MgO and Li2CO3, during which the Li vacancies aid the diffusion of Al and Mg to yield dual-doped LiCoO2. The upgraded LiCoO2 cathode possesses even better structural stability and sustains 300 cycles retaining 79.7% of its initial capacity at a voltage of 4.6 V. As evidenced by the technoeconomic analysis, the current circularity approach exhibits cost benefits and could catalyse further progress in the upcycling of different materials for batteries.
学科领域	Green & Sustainable Science & Technology; Environmental Sciences; Environmental Studies
语种	英语
WOS研究方向	Science & Technology - Other Topics ; Environmental Sciences & Ecology
WOS记录号	WOS:000953001900004
来源期刊	NATURE SUSTAINABILITY
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/272651
作者单位	Tsinghua University; Shanghai Jiao Tong University; Chinese Academy of Sciences; Shenzhen Institute of Advanced Technology, CAS; Chinese Academy of Sciences; Institute of Metal Research, CAS
推荐引用方式 GB/T 7714	Wang, Junxiong,Jia, Kai,Ma, Jun,et al. Sustainable upcycling of spent LiCoO2 to an ultra-stable battery cathode at high voltage[J],2022:12.
APA	Wang, Junxiong.,Jia, Kai.,Ma, Jun.,Liang, Zheng.,Zhuang, Zhaofeng.,...&Cheng, Hui-Ming.(2022).Sustainable upcycling of spent LiCoO2 to an ultra-stable battery cathode at high voltage.NATURE SUSTAINABILITY,12.
MLA	Wang, Junxiong,et al."Sustainable upcycling of spent LiCoO2 to an ultra-stable battery cathode at high voltage".NATURE SUSTAINABILITY (2022):12.