High-yield synthesis of ultrathin silicon nanosheets by physical grinding enables robust lithium-ion storage
文献类型：期刊论文
| 作者 | Lu, Jijun1,2,3; Zhang, Yaoyao1,2; Gong, Xuzhong1,2; Li, Leyang1,2; Pang, Sheng1,2,3; Qian, Guoyu1,2; Wang, Zhi1,2,3; Liu, Junhao1,2,3 |
| 刊名 | CHEMICAL ENGINEERING JOURNAL
 |
| 出版日期 | 2022-10-15 |
| 卷号 | 446页码:9 |
| 关键词 | Ultra-thin Si nanosheet Diamond wire grinding Dynamic carbon coating Solid electrolyte interphase growth interface Lithium-ion battery |
| ISSN号 | 1385-8947 |
| DOI | 10.1016/j.cej.2022.137022 |
| 英文摘要 | Ultra-thin two-dimensional (2D) silicon nanosheets (SiNSs) have potential applications in electronic, energy storage, and energy conversion devices owing to their unique properties. However, high-yield and large-scale manufacturing of high-quality ultra-thin 2D SiNSs remains a great challenge. This report describes a simple, high-yield (> 98%), and large-scale method for preparing ultra-thin 2D SiNSs. The developed approach improves the yield of SiNSs (thickness < 5 nm) by controlling the interaction force between the Si ingot and the abrasive grains during the diamond wire grinding process. The ultra-thin SiNSs deliver enhanced tap density and a limited variable solid electrolyte interphase growth interface. A dynamic chemical vapor deposition technique is carried out to increase the uniformity of the carbon coating on the ultra-thin SiNSs. Lithium-ion batteries employing SiNS-carbon composite anodes exhibit ultra-high initial Coulombic efficiency (88.1%) at a high Si content (79%). The full battery constructed with the fabricated SiNS-carbon composite anode and a commercial LiFePO4 cathode exhibits strong stability (1C over 600 cycles with a capacity retention rate > 80%). The results presented herein confirm the significant potential applicability of the developed method for synthesizing ultra-thin SiNSs with carbon coatings. |
| WOS关键词 | FLUIDIZED-BED ; ANODE ; COMPOSITE |
| 资助项目 | National Key R&D Program of China[2018YFC1901801] ; National Natural Science Foundation of China[52074255] ; National Natural Science Foundation of China[51934006] |
| WOS研究方向 | Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:000806756200001 |
| 出版者 | ELSEVIER SCIENCE SA |
| 资助机构 | National Key R&D Program of China ; National Natural Science Foundation of China |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/53803]  |
| 专题 | 中国科学院过程工程研究所 |
| 通讯作者 | Wang, Zhi; Liu, Junhao |
| 作者单位 | 1.Chinese Acad Sci, Innovat Acad Green Manufacture, Beijing 100190, Peoples R China 2.Chinese Acad Sci, Inst Proc Engn, Natl Engn Res Ctr Green Recycling Strateg Met reso, Key Lab Green Proc & Engn, Beijing 100190, Peoples R China 3.Univ Chinese Acad Sci, Sch Chem Engn, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Lu, Jijun,Zhang, Yaoyao,Gong, Xuzhong,et al. High-yield synthesis of ultrathin silicon nanosheets by physical grinding enables robust lithium-ion storage[J]. CHEMICAL ENGINEERING JOURNAL,2022,446:9. |
| APA | Lu, Jijun.,Zhang, Yaoyao.,Gong, Xuzhong.,Li, Leyang.,Pang, Sheng.,...&Liu, Junhao.(2022).High-yield synthesis of ultrathin silicon nanosheets by physical grinding enables robust lithium-ion storage.CHEMICAL ENGINEERING JOURNAL,446,9. |
| MLA | Lu, Jijun,et al."High-yield synthesis of ultrathin silicon nanosheets by physical grinding enables robust lithium-ion storage".CHEMICAL ENGINEERING JOURNAL 446(2022):9. |
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。