Ni doping carbon skin on SiOx surface to promote the formation of graphitic-N and graphite microcrystals for stable Li storage
文献类型：期刊论文
| 作者 | Zhou, Chunyue1,2,3; Gong, Xuzhong1,2,3; Wang, Zhi1,2,3,4; Liu, Junhao1,2,3,4 |
| 刊名 | ELECTROCHIMICA ACTA
 |
| 出版日期 | 2022-05-10 |
| 卷号 | 414页码:9 |
| 关键词 | N-doped carbon layer Co-doped Graphite microcrystals Graphitic N-doped C SiO x C anodes |
| ISSN号 | 0013-4686 |
| DOI | 10.1016/j.electacta.2022.140184 |
| 英文摘要 | Carbon coating is an effective way to solve the structural disintegration problem associated with silicon-based anodes. Although N-doped carbon can increase the number of lithium storage active sites and promote local charge transfer, the decrease of order degree often leads to the decline of electronic conductivity and structural stability during long-term cycling. In this paper, the formation of graphitic N-doped active sites and graphite microcrystals are promoted by the introduction of nickel composites, which effectively improve the conductivity of the carbon skin and the uniform distribution of charge transfer on the carbon skin. Particularly, the order degree of the carbon layer further improves the stability of electrode/electrolyte interfaces. The sample with a suitable amount of Ni sources shows a satisfactory electrochemical performance among samples with different amounts of nickel source introduced. Specifically, the specific capacity of 667.1 mAh g-1 can be maintained after 2000 cycles at 0.5 A g-1, and the capacity retention ratio is up to 77.6%. This work provides effective guidance for the structural design of N-doped carbon coating to optimize the electrochemical properties of SiOx/C composites. |
| WOS关键词 | HIGHLY EFFICIENT ; COMPOSITE ANODE ; LITHIUM ; PERFORMANCE ; SHELL ; MICROPARTICLES ; GRAPHENE ; GEL |
| 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[51704271] ; National Natural Science Foundation of China[51934006] ; National Natural Science Foundation of China[21878299] |
| WOS研究方向 | Electrochemistry |
| 语种 | 英语 |
| WOS记录号 | WOS:000806493100001 |
| 出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
| 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/122111/53756]  |
| 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.Univ Chinese Acad Sci, Sch Chem Engn, Beijing 100049, 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.Chinese Acad Sci, Innovat Acad Green Manufacture, Beijing 100190, Peoples R China 4.Chinese Acad Sci, Inst Proc Engn, Natl Engn Res Ctr Green Recycling Strateg Met Reso, Key Lab Green Proc & Engn, 1 Bei Er Jie Zhong Guan Cun, Beijing 10090, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhou, Chunyue,Gong, Xuzhong,Wang, Zhi,et al. Ni doping carbon skin on SiOx surface to promote the formation of graphitic-N and graphite microcrystals for stable Li storage[J]. ELECTROCHIMICA ACTA,2022,414:9. |
| APA | Zhou, Chunyue,Gong, Xuzhong,Wang, Zhi,&Liu, Junhao.(2022).Ni doping carbon skin on SiOx surface to promote the formation of graphitic-N and graphite microcrystals for stable Li storage.ELECTROCHIMICA ACTA,414,9. |
| MLA | Zhou, Chunyue,et al."Ni doping carbon skin on SiOx surface to promote the formation of graphitic-N and graphite microcrystals for stable Li storage".ELECTROCHIMICA ACTA 414(2022):9. |
入库方式： OAI收割
来源：过程工程研究所
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