Design of hierarchical buffer structure for silicon/carbon composite as a high-performance Li-ion batteries anode
文献类型：期刊论文
| 作者 | Liu, Zetao2,3; Du, Juntao3; Jia, Huina3; Wang, Wenchao2,3; Zhang, Minxin3; Ma, Jiangkai3; Nie, Yi1,3; Liu, Tianqing2; Song, Kedong2 |
| 刊名 | Journal of Materials Science: Materials in Electronics
 |
| 出版日期 | 2022-02-01 |
| 卷号 | 33期号:6页码:3002-3015 |
| ISSN号 | 9574522 |
| 关键词 | Anodes - Stability - Emulsification - Ions - Lithium-ion batteries - Solid electrolytes - Silicon batteries |
| DOI | 10.1007/s10854-021-07500-2 |
| 英文摘要 | Silicon-based materials are used as anode material for lithium-ion batteries, due to ultra-high theoretical specific capacity. However, large volume changes, continuous formation of unstable solid electrolyte interface film and low conductivity greatly restricted its large-scale development and application. In this case, a composite with hierarchical buffer structure coated Si nanoparticles (Si@RF@MP) was designed and manufactured by the surfactant template and emulsification method in this study. The resorcinol鈥揻ormaldehyde resin acts as the structural buffer and the conductive layer to accommodate the volume change of silicon and provide fast channels for electron transfer and lithium-ion diffusion. The unique turbostratic structure of mesophase pitch can effectively improve the integral conductivity and the structural stability of the electrode. As a result, the Si@RF@MP composite exhibited an excellent reversible discharge capacity of 389聽mA聽h聽g鈭? after 200 cycles at 200聽mA聽g鈭?, and retained a discharge capacity of 345聽mA聽h聽g鈭? after 300 cycles at a high current density of 1000聽mA聽g鈭?. In addition, the Si@RF@MP composite delivered reversible capacities of about 546聽mA聽h聽g鈭?, 495聽mA聽h聽g鈭?, and 437聽mA聽h聽g鈭? in current densities of 500聽mA聽g鈭?, 1000聽mA聽g鈭?, and 2000聽mA聽g鈭?, respectively, indicating good rate performance. Hence, this strategy provides a new method and idea for the further development of silicon/carbon composites and a strategy to achieve high value and green utilization of pitch. 漏 2021, The Author(s), under exclusive licence to Springer Science+Business Media, LLC, part of Springer Nature. |
| 学科主题 | Silicon |
| 项目编号 | This work was financially supported by National Natural Science Foundation of China (Youth Science Foundation Program No. 21908206), Grant. YLU-DNL Fund of China (No. 2021015), Scientific and the Fundamental Research Funds for the Central Universities (DUT20ZD206). |
| 出版者 | Springer |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/61280]  |
| 作者单位 | 1.Beijing Key Laboratory of Ionic Liquids Clean Process, CAS State Key Laboratory of Multiphase Complex Systems, CAS Key Laboratory of Green Process and Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing; 100190, China 2.State Key Laboratory of Fine Chemicals, Dalian R&D Center for Stem Cell and Tissue Engineering, Dalian University of Technology, Dalian; 116024, China 3.Zhengzhou Institute of Emerging Industrial Technology, Zhengzhou; 450000, China |
| 推荐引用方式 GB/T 7714 | Liu, Zetao,Du, Juntao,Jia, Huina,et al. Design of hierarchical buffer structure for silicon/carbon composite as a high-performance Li-ion batteries anode[J]. Journal of Materials Science: Materials in Electronics,2022,33(6):3002-3015. |
| APA | Liu, Zetao.,Du, Juntao.,Jia, Huina.,Wang, Wenchao.,Zhang, Minxin.,...&Song, Kedong.(2022).Design of hierarchical buffer structure for silicon/carbon composite as a high-performance Li-ion batteries anode.Journal of Materials Science: Materials in Electronics,33(6),3002-3015. |
| MLA | Liu, Zetao,et al."Design of hierarchical buffer structure for silicon/carbon composite as a high-performance Li-ion batteries anode".Journal of Materials Science: Materials in Electronics 33.6(2022):3002-3015. |
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