Short-Process Multiscale Core-Shell Structure Buffer Control of a Ni/N Codoped Si@C Composite Using Waste Silicon Powder for Lithium-Ion Batteries
文献类型：期刊论文
| 作者 | Liu, Junhao1,2,3,4; Lu, Jijun1,2,3; Wu, Jinlong1,2; Gong, Xuzhong1,2,3; Wang, Zhi1,2,3,4 |
| 刊名 | ACS APPLIED ENERGY MATERIALS
 |
| 出版日期 | 2021-12-22 |
| 页码 | 8 |
| 关键词 | waste silicon powder Ni-N codoping core-shell structure long cycling fast charge/discharge |
| ISSN号 | 2574-0962 |
| DOI | 10.1021/acsaem.1c02725 |
| 英文摘要 | A huge amount of waste silicon powder produced in the solar energy silicon wafer production process causes resource wastage and environmental pollution. As a lithium-ion battery anode, silicon has received widespread attention because of its extremely high theoretical specific capacity, abundance in nature, and low discharge potential. However, the large volume expansion and huge internal stresses lead to instability of the solid-state interphase layer upon lithiation/delithiation; it is the problem that needs to be solved for actual application of silicon-based anodes. Here, based on the waste silicon powder from a photovoltaic silicon production process as the raw material, we propose a concept of short-process multiscale structure buffer control and prepare Ni-N codoped Si@C core-shell composites to solve the abovementioned problems. The preparation method is simple and nonpolluting and has positive significance for realizing industrialization. For structure, the Si particles are completely encapsulated by the nanoscale carbon shell, and the suitable elastic buffer carbon shell can accommodate Si expansion and the introduction of metallic nickel and N can improve the electrode material conductivity and utilize the metal ductility to buffer the silicon volume expansion during the process of charge/discharge. As a result, the Ni-N codoped sigc electrode shows a stable reversible specific capacity of 1001.5 mAh g(-1) at 0.5 A g(-1) after 450 cycles. |
| WOS关键词 | ENERGY-STORAGE ; PERFORMANCE ; ANODES ; NANOPARTICLES ; ELECTRODES ; GRAPHENE |
| 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[U1702251] ; National Natural Science Foundation of China[51704271] |
| WOS研究方向 | Chemistry ; Energy & Fuels ; Materials Science |
| 语种 | 英语 |
| WOS记录号 | WOS:000736554100001 |
| 出版者 | AMER CHEMICAL SOC |
| 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/122111/51540]  |
| 专题 | 中国科学院过程工程研究所 |
| 通讯作者 | Wang, Zhi |
| 作者单位 | 1.Chinese Acad Sci, Innovat Acad Green Manufacture, Beijing 100190, Peoples R China 2.Chinese Acad Sci, Natl Engn Res Ctr Green Recycling Strateg Met Res, Inst Proc Engn, Key Lab Green Proc & Engn, Beijing 100190, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 4.Chinese Acad Sci, Ganjiang Innovat Acad, Ganzhou 341119, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liu, Junhao,Lu, Jijun,Wu, Jinlong,et al. Short-Process Multiscale Core-Shell Structure Buffer Control of a Ni/N Codoped Si@C Composite Using Waste Silicon Powder for Lithium-Ion Batteries[J]. ACS APPLIED ENERGY MATERIALS,2021:8. |
| APA | Liu, Junhao,Lu, Jijun,Wu, Jinlong,Gong, Xuzhong,&Wang, Zhi.(2021).Short-Process Multiscale Core-Shell Structure Buffer Control of a Ni/N Codoped Si@C Composite Using Waste Silicon Powder for Lithium-Ion Batteries.ACS APPLIED ENERGY MATERIALS,8. |
| MLA | Liu, Junhao,et al."Short-Process Multiscale Core-Shell Structure Buffer Control of a Ni/N Codoped Si@C Composite Using Waste Silicon Powder for Lithium-Ion Batteries".ACS APPLIED ENERGY MATERIALS (2021):8. |
入库方式： OAI收割
来源：过程工程研究所
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