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Aluminum Impurity from Current Collectors Reactivates Degraded NCM Cathode Materials toward Superior Electrochemical Performance

文献类型：期刊论文

作者Xing, Chunxian1; Da, Haoran2; Yang, Peng1; Huang, Jiawei1; Gan, Min1; Zhou, Jian1; Li, Yong1; Zhang, Haitao2; Ge, Binghui3; Fei, Linfeng1
刊名ACS NANO
出版日期2023-02-01
页码10
ISSN号1936-0851
关键词spent NCM regenerated NCM direct recycling two-step method Al doping electrochemical performance
DOI10.1021/acsnano.3c00270
英文摘要The huge amount of degraded NCM (LiNi0.5Co0.2Mn0.3O2) cathode materials from spent lithium-ion batteries is arising as a serious environmental issue as well as a severe waste of metal resources, and therefore, direct recycling of them toward usable electrode materials again is environmentally and economically more attractive in contrast to present metallurgical treatments. In this work, we design a robust two-step method for direct recycling of degraded NCM materials, which uses the aluminum impurity from the attached current collector to supplement the transition metal vacancies for simultaneous elemental compensation and structural restoration. This single-element compensation strategy leads to the regeneration of high-quality NCM material with depressed cation disordering and stabilized layered structure. Moreover, the regenerated NCM material with controllable Al doping delivered an outstanding electrochemical performance; specifically, the capacity (158.6 mAh g-1), rate capability (91.6 mAh g-1 at 5 C), and cycling stability (89.6% capacity retention after 200 cycles) of the regenerated NCM material are even comparable with those of fresh materials. The as-established regeneration protocol has its chance in simplifying the industrial recycling process of degraded NCM materials.
WOS关键词ION BATTERIES ; LITHIUM ; LINI0.5CO0.2MN0.3O2 ; AL2O3 ; ANODE
资助项目National Natural Science Foundation of China[51972159] ; National Natural Science Foundation of China[U21A20500] ; Jiangxi Provincial Natural Science Founda-tion[20212ACB204016] ; Jiangxi Provincial Natural Science Founda-tion[20192ACB21018] ; Jiangxi Provincial Natural Science Founda-tion[20171ACB20006] ; Jiangxi Provincial Natural Science Founda-tion[20212BAB214053] ; Nanchang University
WOS研究方向Chemistry ; Science & Technology - Other Topics ; Materials Science
语种英语
出版者AMER CHEMICAL SOC
WOS记录号WOS:000926116000001
资助机构National Natural Science Foundation of China ; Jiangxi Provincial Natural Science Founda-tion ; Nanchang University
源URL[http://ir.ipe.ac.cn/handle/122111/57097]  
通讯作者Ge, Binghui; Fei, Linfeng
作者单位1.Nanchang Univ, Sch Phys & Mat Sci, Jiangxi Key Lab Two Dimens Mat, Jiangxi Engn Lab Adv Funct Thin Films, Nanchang 330031, Peoples R China
2.Chinese Acad Sci, Inst Proc Engn, Beijing Key Lab Ion Liquids Clean Proc, Key Lab Green Proc & Engn, Beijing 100190, Peoples R China
3.Anhui Univ, Inst Phys Sci & Informat Technol, Informat Mat & Intelligent Sensing Lab Anhui Prov, Hefei 230601, Peoples R China
推荐引用方式
GB/T 7714		 Xing, Chunxian,Da, Haoran,Yang, Peng,et al. Aluminum Impurity from Current Collectors Reactivates Degraded NCM Cathode Materials toward Superior Electrochemical Performance[J]. ACS NANO,2023:10.
APA Xing, Chunxian.,Da, Haoran.,Yang, Peng.,Huang, Jiawei.,Gan, Min.,...&Fei, Linfeng.(2023).Aluminum Impurity from Current Collectors Reactivates Degraded NCM Cathode Materials toward Superior Electrochemical Performance.ACS NANO,10.
MLA Xing, Chunxian,et al."Aluminum Impurity from Current Collectors Reactivates Degraded NCM Cathode Materials toward Superior Electrochemical Performance".ACS NANO (2023):10.

入库方式： OAI收割

来源：过程工程研究所

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