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In situ fabrication of dual coating structured SiO/1D-C/a-C composite as high-performance lithium ion battery anode by fluidized bed chemical vapor deposition

文献类型：期刊论文

作者Shi, Hebang1,2; Zhang, He2,3; Li, Xinxin2; Du, Yu1,2; Hou, Guolin2; Xiang, Maoqiao2; Lv, Pengpeng1,2; Zhu, Qingshan1,2
刊名CARBON
出版日期2020-10-30
卷号168页码:113-124
ISSN号0008-6223
DOI10.1016/j.carbon.2020.06.053
英文摘要To notably improve the cycling stability of high-capacity SiO anode, an ingenious carbon dual coating structure was proposed, utilizing the high conductivity of 1D carbon (1D-C) and the excellent buffering of amorphous carbon (a-C). The carbon deposition pattern by regulating process temperatures was explored. An evolutive carbon deposition mechanism between 1D-C and a-C was deduced, which was a competitive mode between low-temperature catalytic growth and high-temperature pyrolysis deposition. Motivated by the deduced carbon deposition mechanism, a novel two-step coating process via fluidized bed chemical vapor deposition was proposed to fabricate the SiO/1D-C/a-C composite. The grown thickened 1D-C and deposited a-C were heterogeneously coated on the SiO particle surface, forming an ingenious dual coating structure. The synthesized SiO/1D-C/a-C exhibited extremely significant enhanced cycling stability, which showed a reversible capacity of 1012 mAh g(-1) (capacity retention of 88.3%) after 120 cycles. The thickened 1D-C is entangled with each other to form a three-dimensional conductive network, while the deposited a-C formed a shell-like coating to buffer the volume expansion during cycling. The unique carbon dual coating structure achieved synergistic strengthening, which guarantees the superior electrochemical performance of the SiO/1D-C/a-C. (C) 2020 Elsevier Ltd. All rights reserved.
WOS关键词AT-C ANODE ; CARBON NANOTUBES ; HIGH-CAPACITY ; SILICON NANOPARTICLES ; SCALABLE SYNTHESIS ; SIO ANODES ; SI/C COMPOSITE ; NUCLEATION ; NANOFIBERS ; NANOCOMPOSITE
资助项目National Natural Science Foundation of China[51602313] ; National Natural Science Foundation of China[11805227] ; National Natural Science Foundation of China[21805282] ; Key Research Program of Frontier Sciences, Chinese Academy of Sciences[ZDBS-LY-JSC041]
WOS研究方向Chemistry ; Materials Science
语种英语
WOS记录号WOS:000566792200008
出版者PERGAMON-ELSEVIER SCIENCE LTD
资助机构National Natural Science Foundation of China ; Key Research Program of Frontier Sciences, Chinese Academy of Sciences
源URL[http://ir.ipe.ac.cn/handle/122111/42011]  
专题中国科学院过程工程研究所
通讯作者Lv, Pengpeng; Zhu, Qingshan
作者单位1.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
2.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China
3.Guizhou Univ, Coll Mat & Met, Guiyang 550025, Peoples R China
推荐引用方式
GB/T 7714		 Shi, Hebang,Zhang, He,Li, Xinxin,et al. In situ fabrication of dual coating structured SiO/1D-C/a-C composite as high-performance lithium ion battery anode by fluidized bed chemical vapor deposition[J]. CARBON,2020,168:113-124.
APA Shi, Hebang.,Zhang, He.,Li, Xinxin.,Du, Yu.,Hou, Guolin.,...&Zhu, Qingshan.(2020).In situ fabrication of dual coating structured SiO/1D-C/a-C composite as high-performance lithium ion battery anode by fluidized bed chemical vapor deposition.CARBON,168,113-124.
MLA Shi, Hebang,et al."In situ fabrication of dual coating structured SiO/1D-C/a-C composite as high-performance lithium ion battery anode by fluidized bed chemical vapor deposition".CARBON 168(2020):113-124.

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来源：过程工程研究所

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