| Anisotropic expansion and size-dependent fracture of silicon nanotubes during lithiation | |
Wang C ; Wen JC(温济慈); Luo F; Quan BG; Li H; Wei YJ(魏宇杰); Gu CZ; Li JJ
| |
| Corresponding Author | Wei, Yujie([email protected]) ; Gu, Changzhi([email protected]) ; Li, Junjie([email protected]) |
| Source Publication | JOURNAL OF MATERIALS CHEMISTRY A
 |
| 2019-07-07 | |
| Volume | 7Issue:25Pages:15113-15122 |
| ISSN | 2050-7488 |
| Abstract | Silicon nanotube anodes are notably promising for high-performance lithium-ion batteries due to their outstanding structural stability, but fundamental understanding about their structural evolution during lithiation still remains unclear. Here, the expansion and fracture behavior of lithiated silicon nanotubes is investigated, and the influences of the crystal phase, crystal orientation, inner radius, wall thickness, and thickness-radius ratio are demonstrated. Experiments and simulations demonstrate anisotropic expansion and outer-surface fractures of crystalline silicon nanotubes and isotropic expansion of amorphous ones. The inner holes of nanotubes undergo much less expansion than the outside. The fracture ratio and the maximum hoop stress are positively correlated with both wall thickness and inner radius for crystalline silicon nanotubes. Their competition gives rise to an optimal thickness-outer radius ratio of about 2/3, and the critical diameter reaches 700 nm correspondingly. This research provides significant insight into the lithiation behavior of silicon nanotubes, which could help to design improved silicon anodes. |
| DOI | 10.1039/c9ta00519f |
| Indexed By | SCI ; EI |
| Language | 英语 |
| WOS ID | WOS:000473054500057 |
| WOS Keyword | LITHIUM-ION BATTERIES ; ELECTROCHEMICAL LITHIATION ; CRYSTALLINE SILICON ; AMORPHOUS-SILICON ; ANODE ; ELECTRODES ; NANOWIRES ; GRAPHENE ; NANOPARTICLES ; ORIENTATION |
| WOS Research Area | Chemistry ; Energy & Fuels ; Materials Science |
| WOS Subject | Chemistry, Physical ; Energy & Fuels ; Materials Science, Multidisciplinary |
| Funding Project | National Key R&D Program of China[2016YFA0200800] ; National Key R&D Program of China[2016YFA0200400] ; National Key R&D Program of China[2016YFB0100500] ; National Natural Science Foundation of China[91323304] ; National Natural Science Foundation of China[11674387] ; National Natural Science Foundation of China[11574369] ; National Natural Science Foundation of China[11574368] ; National Natural Science Foundation of China[11574385] ; National Natural Science Foundation of China[52315206] ; National Natural Science Foundation of China[51502334] ; National Natural Science Foundation of China[11425211] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDB07020200] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDA09010000] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDB22020200] ; Key Research Program of Frontier Sciences of CAS[QYZDJ-SSW-SLH042] |
| Funding Organization | National Key R&D Program of China ; National Natural Science Foundation of China ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Key Research Program of Frontier Sciences of CAS |
| Classification | 一类 |
| Ranking | 1 |
| Contributor | Wei, Yujie ; Gu, Changzhi ; Li, Junjie |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/79416 |
| Collection | 非线性力学国家重点实验室 |
| Recommended Citation GB/T 7714 | Wang C,Wen JC,Luo F,et al. Anisotropic expansion and size-dependent fracture of silicon nanotubes during lithiation[J]. JOURNAL OF MATERIALS CHEMISTRY A,2019,7,25,:15113-15122.Rp_Au:Wei, Yujie, Gu, Changzhi, Li, Junjie |
| APA | Wang C.,温济慈.,Luo F.,Quan BG.,Li H.,...&Li JJ.(2019).Anisotropic expansion and size-dependent fracture of silicon nanotubes during lithiation.JOURNAL OF MATERIALS CHEMISTRY A,7(25),15113-15122. |
| MLA | Wang C,et al."Anisotropic expansion and size-dependent fracture of silicon nanotubes during lithiation".JOURNAL OF MATERIALS CHEMISTRY A 7.25(2019):15113-15122. |
| Files in This Item: | Download All | |||||
| File Name/Size | DocType | Version | Access | License | ||
| Jp2019228.pdf（1641KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Download | |
Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.
Edit Comment