Scalable and controllable fabrication of CNTs improved yolk-shelled Si anodes with advanced in operando mechanical quantification
文献类型：期刊论文
| 作者 | Zhang, Lei2,3; Huang, Qianwei1; Liao, Xiaozhou1; Dou, Yuhai2; Liu, Porun2; Al-Mamun, Mohammad2; Wang, Yun2; Zhang, Shanqing2; Zhao, Shenlong1; Wang, Dan2,4 |
| 刊名 | Energy and Environmental Science
 |
| 出版日期 | 2021-06-01 |
| 卷号 | 14期号:6页码:3502-3509 |
| 关键词 | Carbon nanotubes - Silicon - Transmission electron microscopy - Fabrication - Lithium-ion batteries - Structural design |
| ISSN号 | 17545692 |
| DOI | 10.1039/d1ee00639h |
| 英文摘要 | Yolk-shelled silicon/carbon materials (YS-Si/C) are the most promising anode candidates to further improve the energy density of commercial lithium-ion batteries. Yet, limited conductive promotion and low tap density resulting from hollow spaces, and complex fabrication processes caused by employing various templating methods, are still critical issues for practical applications of YS-Si/C. In this work, a suite of YS-Si/C anode materials with confined Si-yolks by the C-shell without and with carbon nanotubes (each confines a Co3O4nanoparticle on its tip) on the outer, inner and both sides of the C-shell were facilely and controllably synthesised. The best YS-Si/C anode with carbon nanotubes on both sides of the C-shell can achieve an excellent reversible capacity of 220 mAh g-1under 40.0 A g-1with 100% reversible capacity retention after 1200 cycles. Importantly, an electrochemical transmission electron microscope measurement system was assembled and applied for the concurrent in operando quantification of the exerted mechanical force and real-time structural responses of YS-Si/C during lithiation/delithiation and Li dendrite formation/dissolution processes, which can be used to gain new insights into the phenomenological structural changes, providing valuable guidance for the rational structural design of high-performance electrode materials. 漏 The Royal Society of Chemistry 2021. |
| 学科主题 | Anodes |
| 项目编号 | This work is supported by Australian Research Council Discovery Projects (DP180103430, DP200100965), 2020 Griffith University Postdoctoral Fellowship (CEE2550 LEZHA) and the Natural Science Foundation of China (91963202). The authors acknowledge the scientific and technical input from the Microscopy Australia node at the University of Sydney (Sydney Microscopy & Microanalysis). |
| 出版者 | Royal Society of Chemistry |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/60364]  |
| 作者单位 | 1.School of Aerospace, Mechanical and Mechatronic Engineering, University of Sydney, Sydney; NSW; 2006, Australia 2.Centre for Clean Environment and Energy, Griffith University, Gold Coast Campus, Gold Coast; QLD; 4222, Australia 3.Key Laboratory of Materials Physics, and Anhui Key Laboratory of Nanomaterials and Nanotechnology, CAS Center for Excellence in Nanoscience, Institute of Solid State Physics, Chinese Academy of Sciences, P. O. Box 1129, Hefei; 230031, China 4.State Key Laboratory of Biochemical Engineering, CAS Center for Excellence in Nanoscience, Institute of Process Engineering, Chinese Academy of Sciences, No. 1 Beiertiao, Zhongguancun, Beijing; 100190, China |
| 推荐引用方式 GB/T 7714 | Zhang, Lei,Huang, Qianwei,Liao, Xiaozhou,et al. Scalable and controllable fabrication of CNTs improved yolk-shelled Si anodes with advanced in operando mechanical quantification[J]. Energy and Environmental Science,2021,14(6):3502-3509. |
| APA | Zhang, Lei.,Huang, Qianwei.,Liao, Xiaozhou.,Dou, Yuhai.,Liu, Porun.,...&Zhao, Huijun.(2021).Scalable and controllable fabrication of CNTs improved yolk-shelled Si anodes with advanced in operando mechanical quantification.Energy and Environmental Science,14(6),3502-3509. |
| MLA | Zhang, Lei,et al."Scalable and controllable fabrication of CNTs improved yolk-shelled Si anodes with advanced in operando mechanical quantification".Energy and Environmental Science 14.6(2021):3502-3509. |
入库方式： OAI收割
来源：过程工程研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。