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Graphitized porous carbon microspheres assembled with carbon black nanoparticles as improved anode materials in Li-ion batteries
Alternative TitleJ. Mater. Chem. A
Zhang, Lei1,2; Zhang, Meiju2; Wang, Yanhong2; Zhang, Zailei2; Kan, Guangwei2; Wang, Cunguo1; Zhong, Ziyi3; Su, Fabing2
2014-07-14
Source PublicationJOURNAL OF MATERIALS CHEMISTRY A
ISSN2050-7488
Volume2Issue:26Pages:10161-10168
AbstractWe report the facile preparation of graphitized porous carbon microspheres (GPCMs) by the spray drying technique using carbon black (CB) nanoparticles as the primary carbon resource and sucrose as the binder, followed by graphitization at 2800 degrees C. The samples were characterized by X-ray diffraction, transmission electron microscopy, scanning electron microscopy, nitrogen adsorption, thermogravimetric analysis, and Raman spectroscopy. It is found that the GPCMs with a size of 5-20 mu m delivered a reversible capacity of 459 mA h g(-1) at the current density of 50 mA g(-1) after 100 cycles, much higher than that of the commercial graphite microspheres (GMs) (372 mA h g(-1)). More importantly, GPCMs exhibited excellent rate performances with a capacity of 338 and 300 mA h g(-1) at the current densities of 500 and 1000 mA g(-1) respectively. superior to those of GMs (200 and 100 mA h g(-1)). The excellent electrochemical properties of GPCMs originate from its unique structure, which is composed of core-shell nanoparticles with the graphitized carbon core derived from CB nanoparticles and the hard carbon shell generated from sucrose, providing more lithium ion storage sites, higher electronic conductivity, and fast ion diffusion. This work opens a simple way to large-scale production of new carbon anode materials with a low cost and good performance for Li-ion batteries.; We report the facile preparation of graphitized porous carbon microspheres (GPCMs) by the spray drying technique using carbon black (CB) nanoparticles as the primary carbon resource and sucrose as the binder, followed by graphitization at 2800 degrees C. The samples were characterized by X-ray diffraction, transmission electron microscopy, scanning electron microscopy, nitrogen adsorption, thermogravimetric analysis, and Raman spectroscopy. It is found that the GPCMs with a size of 5-20 mu m delivered a reversible capacity of 459 mA h g(-1) at the current density of 50 mA g(-1) after 100 cycles, much higher than that of the commercial graphite microspheres (GMs) (372 mA h g(-1)). More importantly, GPCMs exhibited excellent rate performances with a capacity of 338 and 300 mA h g(-1) at the current densities of 500 and 1000 mA g(-1) respectively. superior to those of GMs (200 and 100 mA h g(-1)). The excellent electrochemical properties of GPCMs originate from its unique structure, which is composed of core-shell nanoparticles with the graphitized carbon core derived from CB nanoparticles and the hard carbon shell generated from sucrose, providing more lithium ion storage sites, higher electronic conductivity, and fast ion diffusion. This work opens a simple way to large-scale production of new carbon anode materials with a low cost and good performance for Li-ion batteries.
KeywordHollow Carbon Hard Carbon Secondary Batteries Lithium Insertion Surface-area Mesocarbon Microbeads Macroporous Carbon Oxygen Reduction Heat-treatment Fuel-cells
SubtypeArticle
WOS HeadingsScience & Technology ; Physical Sciences ; Technology
DOI10.1039/c4ta00356j
URL查看原文
Indexed BySCI
Language英语
WOS KeywordHOLLOW CARBON ; HARD CARBON ; SECONDARY BATTERIES ; LITHIUM INSERTION ; SURFACE-AREA ; MESOCARBON MICROBEADS ; MACROPOROUS CARBON ; OXYGEN REDUCTION ; HEAT-TREATMENT ; FUEL-CELLS
WOS Research AreaChemistry ; Energy & Fuels ; Materials Science
WOS SubjectChemistry, Physical ; Energy & Fuels ; Materials Science, Multidisciplinary
WOS IDWOS:000337856900031
Citation statistics
Cited Times:48[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Version出版稿
Identifierhttp://ir.ipe.ac.cn/handle/122111/11031
Collection研究所(批量导入)
Affiliation1.Qingdao Univ Sci & Technol, Key Lab Rubber Plast, Minist Educ, Qingdao 261500, Peoples R China
2.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China
3.ASTAR, Inst Chem Engn & Sci, Singapore 627833, Singapore
Recommended Citation
GB/T 7714
Zhang, Lei,Zhang, Meiju,Wang, Yanhong,et al. Graphitized porous carbon microspheres assembled with carbon black nanoparticles as improved anode materials in Li-ion batteries[J]. JOURNAL OF MATERIALS CHEMISTRY A,2014,2(26):10161-10168.
APA Zhang, Lei.,Zhang, Meiju.,Wang, Yanhong.,Zhang, Zailei.,Kan, Guangwei.,...&Su, Fabing.(2014).Graphitized porous carbon microspheres assembled with carbon black nanoparticles as improved anode materials in Li-ion batteries.JOURNAL OF MATERIALS CHEMISTRY A,2(26),10161-10168.
MLA Zhang, Lei,et al."Graphitized porous carbon microspheres assembled with carbon black nanoparticles as improved anode materials in Li-ion batteries".JOURNAL OF MATERIALS CHEMISTRY A 2.26(2014):10161-10168.
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