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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
发表期刊JOURNAL OF MATERIALS CHEMISTRY A
ISSN2050-7488
卷号4期号:2页码:552-560
摘要As 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.
文章类型Article
WOS标题词Science & Technology ; Physical Sciences ; Technology
DOI10.1039/c5ta07487h
收录类别SCI
语种英语
关键词[WOS]SCALABLE SYNTHESIS ; LITHIUM BATTERIES ; ROCHOW REACTION ; SI ANODES ; MICROSPHERES ; METHOXYSILANES ; NANOPARTICLES ; NANOSPHERES ; ELECTRODES ; LITHIATION
WOS研究方向Chemistry ; Energy & Fuels ; Materials Science
WOS类目Chemistry, Physical ; Energy & Fuels ; Materials Science, Multidisciplinary
项目资助者National Natural Science Foundation of China(51272252 ; Hundred Talents Program of the Chinese Academy of Sciences ; 51402302 ; 51402299)
WOS记录号WOS:000367272800026
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被引频次:20[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ipe.ac.cn/handle/122111/20248
专题多相复杂系统国家重点实验室
作者单位1.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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