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High-Performance Sodium-Ion Batteries Based on Nitrogen-Doped Mesoporous Carbon Spheres with Ultrathin Nanosheets
Xiongwei Zhong1,2; Yingzhi Li1; Luozheng Zhang1; Jun Tang1; Xiangnan Li1; Chang Liu1; Mengmeng Shao2; Zhouguang Lu1; Hui Pan2,3; Baomin Xu1
2018-12-27
Source PublicationACS Applied Materials and Interfaces
ISSN1944-8244
Volume11Issue:3Pages:2970-2977
Abstract

Hard carbon exhibits high theoretical capacity for sodium-ion batteries. However, its practical application suffers from low electric conductivity, poor electrochemical stability, and sluggish kinetics. To tackle these challenges, novel nitrogen-doped carbon spheres with mesopores, ultrathin nanostructure, and optimal graphitization are prepared by a three-step procedure. We find that the as-prepared sample (NMCSs-800) with an optimal structure and nitrogen content delivers a high reversible sodium storage capacity of 334.7 mA h/g at 50 mA/g and an ultrahigh rate performance of 93.9 mA h/g at 5 A/g, which is better than most state-of-the-art carbon materials. The improved energy storage capacity is attributed to its unique architecture and optimal nitrogen doping, which provide abundant active sites, defects, and voids. Moreover, kinetic analysis and in situ Raman spectroscopy results reveal adsorption and adsorption–intercalation mechanisms for Na+ storage in hard carbon at the slope region above 0.3 V and the other slope region of 0.3–0.02 V, respectively. We believe that our findings provide a novel tactic to design elaborate nanomaterials for the high-performance sodium-ion battery.

KeywordCarbon Sphere Hard Carbon Nanosheets Nitrogen-doping Sodium-ion Battery
DOI10.1021/acsami.8b17473
URLView the original
Indexed BySCIE
Language英語English
WOS Research AreaScience & Technology - Other Topics ; Materials Science
WOS SubjectNanoscience & Nanotechnology ; Materials Science, Multidisciplinary
WOS IDWOS:000457067300048
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Cited Times [WOS]:36   [WOS Record]     [Related Records in WOS]
Document TypeJournal article
CollectionINSTITUTE OF APPLIED PHYSICS AND MATERIALS ENGINEERING
Affiliation1.Department of Materials Science and Engineering, Southern University of Science and Technology, Shenzhen, Guangdong Province 518055, China
2.Joint Key Laboratory of the Ministry of Education, Institute of Applied Physics and Materials Engineering, and Department of Physics and Chemistry, Faculty of Science and Technology, University of Macau, Macau 999078, China
3.Department of Physics and Chemistry, Faculty of Science and Technology, University of Macau, Macau 999078, China
First Author AffilicationFaculty of Science and Technology
Recommended Citation
GB/T 7714
Xiongwei Zhong,Yingzhi Li,Luozheng Zhang,et al. High-Performance Sodium-Ion Batteries Based on Nitrogen-Doped Mesoporous Carbon Spheres with Ultrathin Nanosheets[J]. ACS Applied Materials and Interfaces,2018,11(3):2970-2977.
APA Xiongwei Zhong,Yingzhi Li,Luozheng Zhang,Jun Tang,Xiangnan Li,Chang Liu,Mengmeng Shao,Zhouguang Lu,Hui Pan,&Baomin Xu.(2018).High-Performance Sodium-Ion Batteries Based on Nitrogen-Doped Mesoporous Carbon Spheres with Ultrathin Nanosheets.ACS Applied Materials and Interfaces,11(3),2970-2977.
MLA Xiongwei Zhong,et al."High-Performance Sodium-Ion Batteries Based on Nitrogen-Doped Mesoporous Carbon Spheres with Ultrathin Nanosheets".ACS Applied Materials and Interfaces 11.3(2018):2970-2977.
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