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Design and synthesis of high-silicon silicon suboxide nanowires by radio-frequency thermal plasma for high-performance lithium-ion battery anodes

文献类型：期刊论文

作者Yang, Zongxian1,6; Dong, Yuanjiang1,6; Liu, Chang1,6; Feng, Xiangqi5; Jin, Huacheng1; Ma, Xiaohong1; Ding, Fei1; Li, Baoqiang1; Bai, Liuyang5; Ouyang, Yuge4
刊名APPLIED SURFACE SCIENCE
出版日期2023-03-30
卷号614页码:9
ISSN号0169-4332
关键词Lithium -ion batteries Silicon suboxide anode RF-plasma Nanowires High areal capacity
DOI10.1016/j.apsusc.2022.156235
英文摘要Silicon monoxide (SiO) is one of the most promising anode materials due to its high capacity and improved cycle stability. The lithium silicates (LixSiOy) and lithium oxide (Li2O) formed during the first lithiation can serve as a buffer matrix to restrain the volume change of internal silicon (Si), however, which also lows the initial coulombic efficiency (ICE). High-silicon silicon suboxide (SiOx) seems desirable due to the generation of less but enough LixSiOy/Li2O matrix. However, it is challenging to verify that all Si is protected by the matrix. In this work, SiO0.4 nanowires with Si shielded by SiOx are synthesized using thermal plasma. The interwoven structure composites of carbon-coated SiO0.4 and carbon nanotubes (SiO0.4/CNTs@C) are then synthesized. As an elec-trode with a high loading of 2.2 mg cm-2, SiO0.4/CNTs@C shows a 12.7 % increase in ICE (81.9 %) and a 34.6 % increase in capacity (1993 mAh/g/4.4 mAh cm-2 at 0.2 A/g for 300 cycles) in comparison to SiO1/CNTs@C. SiO0.4/CNTs@C also shows outstanding high-rate cycle performance (1440 mAh/g at 3.0A/g for 2000 cycles). Significantly, when 5 wt% SiO0.4/CNTs@C is added as an additive to commercial graphite (Gr), the capacity of a standard LiNi0.8Co0.15Al0.05O2//Gr 18,650 battery improves by 20.6 %.
WOS关键词CARBON ; STORAGE ; LAYERS ; SIOX
资助项目Ministry of Science and Technology of China[2019YFE0123000] ; National Natural Science Foundation of China (NSFC)[21878312] ; National Natural Science Foundation of China (NSFC)[11875284] ; China Central Guidance on Local Science and Technology Development Fund of Henan Province[Z20221343028] ; R&D Program of Beijing Municipal Education Commission[KM202210011003] ; Innovation Academy for Green Manufacture, CAS[IAGM-2020C03]
WOS研究方向Chemistry ; Materials Science ; Physics
语种英语
出版者ELSEVIER
WOS记录号WOS:000923479600001
资助机构Ministry of Science and Technology of China ; National Natural Science Foundation of China (NSFC) ; China Central Guidance on Local Science and Technology Development Fund of Henan Province ; R&D Program of Beijing Municipal Education Commission ; Innovation Academy for Green Manufacture, CAS
源URL[http://ir.ipe.ac.cn/handle/122111/56889]  
通讯作者Ouyang, Yuge; Yuan, Fangli
作者单位1.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China
2.Innovat Acad Green Manufacture, Beijing 100190, Peoples R China
3.Univ Chinese Acad Sci UCAS, Ctr Mat Sci & Optoelect Engn, Beijing 100049, Peoples R China
4.Beijing Technol & Business Univ, Coll Chem & Mat Engn, Beijing 100048, Peoples R China
5.Huanghuai Univ, Coll Energy Engn, Zhumadian 463800, Peoples R China
6.Univ Chinese Acad Sci UCAS, Beijing 100049, Peoples R China
推荐引用方式
GB/T 7714		 Yang, Zongxian,Dong, Yuanjiang,Liu, Chang,et al. Design and synthesis of high-silicon silicon suboxide nanowires by radio-frequency thermal plasma for high-performance lithium-ion battery anodes[J]. APPLIED SURFACE SCIENCE,2023,614:9.
APA Yang, Zongxian.,Dong, Yuanjiang.,Liu, Chang.,Feng, Xiangqi.,Jin, Huacheng.,...&Yuan, Fangli.(2023).Design and synthesis of high-silicon silicon suboxide nanowires by radio-frequency thermal plasma for high-performance lithium-ion battery anodes.APPLIED SURFACE SCIENCE,614,9.
MLA Yang, Zongxian,et al."Design and synthesis of high-silicon silicon suboxide nanowires by radio-frequency thermal plasma for high-performance lithium-ion battery anodes".APPLIED SURFACE SCIENCE 614(2023):9.

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来源：过程工程研究所

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