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In-situ formed amorphous manganese vanadate encapsulating MnO via salt-assisted ball milling toward 3D hierarchical porous electrodes for superior lithium storage
Li, Bo1; Shen, Jingjun1; Zhao, Huajun1; Lei, Wen1; Yu, Xueqing1; Xu, Jincheng1; Tang, Yuxin2; Zhang, Haiyan3; Shao, Huaiyu1
2022-03-01
Source PublicationChemical Engineering Journal
ISSN1385-8947
Volume431
Abstract

Amorphous electrode has been witnessed for enhanced electrochemical performance as unique isotropic nature. Moreover, the fancy structures are beneficial to achieve superior electrochemical properties. However, it is a formidable challenge to acquire an electrode material which keeps both amorphous phase and organized morphology via a simple preparation method. In a departure of other sophisticated methods, ball milling could easily introduce amorphous phase with unique merits such as more interstitial sites for rapid diffusion of Li ions, and more void spaces for accommodation of volume change than the crystalline phase. In our work, 3D hierarchical porous electrodes were designed and synthesized via KCl-assisted ball milling method. Owing to the unique merits including crosslinked 3D porous network, amorphous manganese vanadate buffer layer and numerous oxygen defects introduced during the KCl-assisted milling, the as-prepared electrode showed boosted electrochemical performance. The as-prepared electrodes delivered a capacity as high as 540.55 mAh g after 500 cycles at 2 A g with 98.78% capacity retention and 85.39% after 900 cycles. In brief, KCl-assisted ball milling provided a feasible and efficient approach to achieve 3D hierarchical porous electrodes, casting light on new approach of developing advanced electrode materials with the organized morphologies and amorphous phase.

Keyword3d Porous Structure Amorphous Phase Defect Lithium Storage Salt-assisted Ball Milling
DOI10.1016/j.cej.2021.133732
URLView the original
Indexed BySCIE
Language英語English
WOS Research AreaEngineering
WOS SubjectEngineering, environmentalEngineering, Chemical
WOS IDWOS:000772998000003
Scopus ID2-s2.0-85119920343
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Cited Times [WOS]:0   [WOS Record]     [Related Records in WOS]
Document TypeJournal article
CollectionINSTITUTE OF APPLIED PHYSICS AND MATERIALS ENGINEERING
Corresponding AuthorShao, Huaiyu
Affiliation1.Guangdong-Hong Kong-Macau, Joint Laboratory for Photonic-Thermal-Electrical Energy Materials and Devices, Institute of Applied Physics and Materials Engineering, University of Macau, Avenida da Universidade, Macao SAR, Taipa, 999078, China
2.College of Chemical Engineering, Fuzhou University, Fuzhou, 350116, China
3.School of Materials and Energy, Guangdong University of Technology, Guangzhou, 510006, China
First Author AffilicationINSTITUTE OF APPLIED PHYSICS AND MATERIALS ENGINEERING
Corresponding Author AffilicationINSTITUTE OF APPLIED PHYSICS AND MATERIALS ENGINEERING
Recommended Citation
GB/T 7714
Li, Bo,Shen, Jingjun,Zhao, Huajun,et al. In-situ formed amorphous manganese vanadate encapsulating MnO via salt-assisted ball milling toward 3D hierarchical porous electrodes for superior lithium storage[J]. Chemical Engineering Journal,2022,431.
APA Li, Bo,Shen, Jingjun,Zhao, Huajun,Lei, Wen,Yu, Xueqing,Xu, Jincheng,Tang, Yuxin,Zhang, Haiyan,&Shao, Huaiyu.(2022).In-situ formed amorphous manganese vanadate encapsulating MnO via salt-assisted ball milling toward 3D hierarchical porous electrodes for superior lithium storage.Chemical Engineering Journal,431.
MLA Li, Bo,et al."In-situ formed amorphous manganese vanadate encapsulating MnO via salt-assisted ball milling toward 3D hierarchical porous electrodes for superior lithium storage".Chemical Engineering Journal 431(2022).
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