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Carbon-coated porous silicon composites as high performance Li-ion battery anode materials: can the production process be cheaper and greener?
Ren, Wenfeng1,2; Wang, Yanhong1; Zhang, Zailei1; Tan, Qiangqiang1; Zhong, Ziyi3; Su, Fabing1
2016
Source PublicationJOURNAL OF MATERIALS CHEMISTRY A
ISSN2050-7488
Volume4Issue:2Pages:552-560
AbstractAs the most promising next-generation lithium-ion battery anode materials, porous silicon-based materials are attracting great attention nowadays, mainly because of silicon's exceptionally high lithium storage capacity. However, how to realize the large-scale manufacture of these materials at low cost still remains a big challenge. In this work, we report the direct preparation of porous Si materials from metallurgical-grade Si in an autoclave, which is the most environmentally friendly route to produce alkoxysilane monomers in the organic silicon industry. In this reaction, Cu-based catalysts catalyze the reaction of Si particles with alcohols to create a porous structure within Si, followed by carbon deposition via the chemical vapor deposition method. The micro-morphology and -structure of the porous Si materials can be well tuned by adjusting the synthesis conditions. When used as the anode materials for lithium ion batteries, the charge capacity of the obtained porous Si/C materials was 1240 mA h g(-1) at a current density of 50 mA g(-1) after 50 cycles, much higher than that of the commercial graphite. This work provides an economic and scalable approach to the preparation of porous Si/C anode materials from commercial Si powders for lithium ion batteries.
SubtypeArticle
WOS HeadingsScience & Technology ; Physical Sciences ; Technology
DOI10.1039/c5ta07487h
Indexed BySCI
Language英语
WOS KeywordSCALABLE SYNTHESIS ; LITHIUM BATTERIES ; ROCHOW REACTION ; SI ANODES ; MICROSPHERES ; METHOXYSILANES ; NANOPARTICLES ; NANOSPHERES ; ELECTRODES ; LITHIATION
WOS Research AreaChemistry ; Energy & Fuels ; Materials Science
WOS SubjectChemistry, Physical ; Energy & Fuels ; Materials Science, Multidisciplinary
Funding OrganizationNational Natural Science Foundation of China(51272252 ; Hundred Talents Program of the Chinese Academy of Sciences ; 51402302 ; 51402299)
WOS IDWOS:000367272800026
Citation statistics
Cited Times:31[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/20248
Collection多相复杂系统国家重点实验室
Affiliation1.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.ASTAR, Inst Chem Engn & Sci, Jurong Isl 627833, Singapore
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Ren, Wenfeng,Wang, Yanhong,Zhang, Zailei,et al. Carbon-coated porous silicon composites as high performance Li-ion battery anode materials: can the production process be cheaper and greener?[J]. JOURNAL OF MATERIALS CHEMISTRY A,2016,4(2):552-560.
APA Ren, Wenfeng,Wang, Yanhong,Zhang, Zailei,Tan, Qiangqiang,Zhong, Ziyi,&Su, Fabing.(2016).Carbon-coated porous silicon composites as high performance Li-ion battery anode materials: can the production process be cheaper and greener?.JOURNAL OF MATERIALS CHEMISTRY A,4(2),552-560.
MLA Ren, Wenfeng,et al."Carbon-coated porous silicon composites as high performance Li-ion battery anode materials: can the production process be cheaper and greener?".JOURNAL OF MATERIALS CHEMISTRY A 4.2(2016):552-560.
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