Rational Design and Mechanical Understanding of Three-Dimensional Macro-/Mesoporous Silicon Lithium-Ion Battery Anodes with a Tunable Pore Size and Wall Thickness
文献类型：期刊论文
| 作者 | Zuo, Xiuxia; Wen, Yi; Qiu, Yike; Cheng, Ya-Jun; Yin, Shanshan; Ji, Qing; You, Zhong; Zhu, Jin; Mueller-Buschbaum, Peter; Ma, Lifeng |
| 刊名 | ACS APPLIED MATERIALS & INTERFACES
 |
| 出版日期 | 2020 |
| 卷号 | 12期号:39页码:43785-43797 |
| 关键词 | HIGH-PERFORMANCE ANODE POROUS SILICON HOLLOW NANOSPHERES REDUCTION COMPOSITE CAPACITY STORAGE ALLOY PARTICLES NANOWIRES |
| DOI | 10.1021/acsami.0c12747 |
| 英文摘要 | Silicon is regarded as one of the most promising next generation lithium-ion battery anodes due to its exceptional theoretical capacity, appropriate voltage profile, and vast abundance. Nevertheless, huge volume expansion and drastic stress generated upon lithiation cause poor cyclic stability. It has been one of the central issues to improve cyclic performance of silicon-based lithium-ion battery anodes. Constructing hierarchical macro-/mesoporous silicon with a tunable pore size and wall thickness is developed to tackle this issue. Rational structure design, controllable synthesis, and theoretical mechanical simulation are combined together to reveal fundamental mechanisms responsible for an improved cyclic performance. A self-templating strategy is applied using Stober silica particles as a templating agent and precursor coupled with a magnesiothermic reduction process. Systematic variation of the magnesiothermic reduction time allows good control over the structures of the porous silicon. Finite element mechanical simulations on the porous silicon show that an increased pore size and a reduced wall thickness generate less mechanical stress in average along with an extended lithiation state. Besides the mechanical stress, the evolution of strain and displacement of the porous silicon is also elaborated with the finite element simulation. |
| 学科主题 | Science & Technology - Other Topics ; Materials Science |
| 源URL | [http://ir.nimte.ac.cn/handle/174433/20468]  |
| 专题 | 2020专题 2020专题_期刊论文 |
| 作者单位 | 1.Cheng, YJ (corresponding author), Univ Oxford, Dept Mat, Oxford OX1 3PH, England. 2.Cheng, YJ 3.Xia, YG (corresponding author), Chinese Acad Sci, Ningbo Inst Mat Technol & Engn, Ningbo 315201, Zhejiang, Peoples R China. 4.Ma, LF (corresponding author), Xi An Jiao Tong Univ, Dept Engn Mech, Xian 710049, Shaanxi, Peoples R China. 5.Wen, Y (corresponding author), Xi An Jiao Tong Univ, Natl Demonstrat Ctr Expt Mech Educ, Sch Aerosp, Xian 710049, Shaanxi, Peoples R China. 6.Xia, YG (corresponding author), Univ Chinese Acad Sci, Ctr Mat Sci & Optoelect Engn, Beijing 100049, Peoples R China. |
| 推荐引用方式 GB/T 7714 | Zuo, Xiuxia,Wen, Yi,Qiu, Yike,et al. Rational Design and Mechanical Understanding of Three-Dimensional Macro-/Mesoporous Silicon Lithium-Ion Battery Anodes with a Tunable Pore Size and Wall Thickness[J]. ACS APPLIED MATERIALS & INTERFACES,2020,12(39):43785-43797. |
| APA | Zuo, Xiuxia.,Wen, Yi.,Qiu, Yike.,Cheng, Ya-Jun.,Yin, Shanshan.,...&Xia, Yonggao.(2020).Rational Design and Mechanical Understanding of Three-Dimensional Macro-/Mesoporous Silicon Lithium-Ion Battery Anodes with a Tunable Pore Size and Wall Thickness.ACS APPLIED MATERIALS & INTERFACES,12(39),43785-43797. |
| MLA | Zuo, Xiuxia,et al."Rational Design and Mechanical Understanding of Three-Dimensional Macro-/Mesoporous Silicon Lithium-Ion Battery Anodes with a Tunable Pore Size and Wall Thickness".ACS APPLIED MATERIALS & INTERFACES 12.39(2020):43785-43797. |
入库方式： OAI收割
来源：宁波材料技术与工程研究所
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