中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
The influence of different Si : C ratios on the electrochemical performance of silicon/carbon layered film anodes for lithium-ion batteries

文献类型:期刊论文

作者Wang, Jun1,3; Li, Shengli1; Zhao, Yi1; Shi, Juan1; Lv, Lili1; Wang, Huazhi1; Zhang, Zhiya1; Feng, Wangjun2
刊名RSC Advances
出版日期2018
卷号8期号:12页码:6660-6666
ISSN号2046-2069
DOI10.1039/c7ra12027c
英文摘要

With a high specific capacity (4200 mA h g−1), silicon based materials have become the most promising anode materials in lithium-ions batteries. However, the large volume expansion makes the capacity reduce rapidly. In this work, a periodic silicon/carbon (Si/C) multilayer thin film was synthesized by magnetron sputtering method on copper foil. The titanium (Ti) film (about 20 nm) as the transition layer was deposited on the copper foil prior to the deposition of the multilayer film. Superior electrochemical lithium storage performance was obtained by the multilayer thin film. The initial discharge and charge specific capacity of the Si (15 nm)/C (5 nm) multilayer film anode are 2640 mA h g−1 and 2560 mA h g−1 with an initial coulombic efficiency of ∼97%. The retention specific capacity is about 2300 mA h g−1 and there is ∼87% capacity retention after 200 cycles.

学科主题材料科学与物理化学
语种英语
WOS记录号WOS:000425034000056
资助机构the Fundamental Research Funds for the Central Universities (lzujbky-2016-114;lzujbky-2016-120);the Open Project of Key Laboratory for Magnetism and Magnetic Materials of the Ministry of Education, Lanzhou University under award number LZUMMM2016012
源URL[http://210.77.64.217/handle/362003/23724]  
专题兰州化学物理研究所_固体润滑国家重点实验室
通讯作者Wang, Jun
作者单位1.Lanzhou Univ, Sch Phys Sci & Technol, Lanzhou 730000, Gansu, Peoples R China
2.LanZhou Univ Technol, Sch Sci, Lanzhou 730000, Gansu, Peoples R China
3.Chinese Acad Sci, State Key Lab Solid Lubricat, Lanzhou Inst Chem Phys, Lanzhou 730000, Gansu, Peoples R China
推荐引用方式
GB/T 7714
Wang, Jun,Li, Shengli,Zhao, Yi,et al. The influence of different Si : C ratios on the electrochemical performance of silicon/carbon layered film anodes for lithium-ion batteries[J]. RSC Advances,2018,8(12):6660-6666.
APA Wang, Jun.,Li, Shengli.,Zhao, Yi.,Shi, Juan.,Lv, Lili.,...&Feng, Wangjun.(2018).The influence of different Si : C ratios on the electrochemical performance of silicon/carbon layered film anodes for lithium-ion batteries.RSC Advances,8(12),6660-6666.
MLA Wang, Jun,et al."The influence of different Si : C ratios on the electrochemical performance of silicon/carbon layered film anodes for lithium-ion batteries".RSC Advances 8.12(2018):6660-6666.

入库方式: OAI收割

来源:兰州化学物理研究所

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