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Scalable synthesis of highly dispersed silicon nanospheres by RF thermal plasma and their use as anode materials for high-performance Li-ion batteries
Hou, Guolin1,2; Cheng, Benli3; Cao, Yuebin1; Yao, Mingshui4; Ding, Fei1; Hu, Peng1; Yuan, Fangli1
2015
Source PublicationJOURNAL OF MATERIALS CHEMISTRY A
ISSN2050-7488
Volume3Issue:35Pages:18136-18145
Abstract

Si nanospheres (SiNSs) have been synthesized via a simple, continuous and one-step way by using a radio frequency (RF) thermal plasma system on a large-scale. The synthesized SiNSs display a perfect spherical shape with a smooth surface and good dispersity. By a simple ball-milling post-processing, silicon nanosphere/porous carbon (SiNS/PC) composites with synthesized Si nanospheres uniformly dispersed in the carbon matrix have been prepared, and the composite particles have a core/shell structure (i.e., every Si nanosphere is well covered by the complete porous carbon shell). As anodes for Li-ion batteries, the prepared composite materials could maintain microstructural stability after cycles and exhibit remarkably improved electrochemical performance with large storage capacity, super cycling stability and high rate capability. These desirable electrochemical performances are attributed to the unique structure of the SiNS/PC composite, which has a high capacity Si core with a nanosphere morphology to alleviate the inner volume changes, and a porous shell acting as a conductive matrix to enhance the conductivity, accommodate the silicon volume expansion, and facilitate lithium-ion transportation during charging-discharging.

SubtypeArticle
WOS HeadingsScience & Technology ; Physical Sciences ; Technology
DOI10.1039/c5ta04620c
Indexed BySCI
Language英语
WOS KeywordHIGH-CAPACITY ANODE ; LITHIUM RECHARGEABLE BATTERIES ; SI-C NANOCOMPOSITES ; X-RAY-DIFFRACTION ; LONG CYCLE LIFE ; GRAPHENE NANOSHEETS ; AMORPHOUS-SILICON ; STORAGE ; NANOWIRES ; COMPOSITE
WOS Research AreaChemistry ; Energy & Fuels ; Materials Science
WOS SubjectChemistry, Physical ; Energy & Fuels ; Materials Science, Multidisciplinary
WOS IDWOS:000360117600029
Citation statistics
Cited Times:14[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/19490
Collection多相复杂系统国家重点实验室
Affiliation1.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multi Phase Complex Syst, Beijing 100190, Peoples R China
2.UCAS, Beijing 100049, Peoples R China
3.Green Ecomfg Co Ltd, Tianjin Branch, Tianjin 301600, Peoples R China
4.Chinese Acad Sci, Fujian Inst Res Struct Matter, State Key Lab Struct Chem, Fuzhou 350002, Peoples R China
Recommended Citation
GB/T 7714
Hou, Guolin,Cheng, Benli,Cao, Yuebin,et al. Scalable synthesis of highly dispersed silicon nanospheres by RF thermal plasma and their use as anode materials for high-performance Li-ion batteries[J]. JOURNAL OF MATERIALS CHEMISTRY A,2015,3(35):18136-18145.
APA Hou, Guolin.,Cheng, Benli.,Cao, Yuebin.,Yao, Mingshui.,Ding, Fei.,...&Yuan, Fangli.(2015).Scalable synthesis of highly dispersed silicon nanospheres by RF thermal plasma and their use as anode materials for high-performance Li-ion batteries.JOURNAL OF MATERIALS CHEMISTRY A,3(35),18136-18145.
MLA Hou, Guolin,et al."Scalable synthesis of highly dispersed silicon nanospheres by RF thermal plasma and their use as anode materials for high-performance Li-ion batteries".JOURNAL OF MATERIALS CHEMISTRY A 3.35(2015):18136-18145.
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