Influence of carbon coating on the electrochemical performance of SiO@C/graphite composite anode materials
文献类型：期刊论文
| 作者 | Lu, Hao1,2; Wang, Junyang1,2; Liu, Bonan3; Chu, Geng4; Zhou, Ge1,2; Luo, Fei5; Zheng, Jieyun1,2; Yu, Xiqian1,2; Li, Hong1,2 |
| 刊名 | CHINESE PHYSICS B
 |
| 出版日期 | 2019-06-01 |
| 卷号 | 28期号:6页码:8 |
| 关键词 | lithium-ion battery silicon monoxide carbon coating anode material |
| ISSN号 | 1674-1056 |
| DOI | 10.1088/1674-1056/28/6/068201 |
| 英文摘要 | Silicon monoxide (SiO) has been considered as one of the most promising anode materials for next generation highenergy-density Li-ion batteries (LiBs) thanks to its high theoretical capacity. However, the poor intrinsic electronic conductivity and large volume change during lithium intercalation/de-intercalation restrict its practical applications. Fabrication of SiO/C composites is an effective way to overcome these problems. Herein, a series of micro-sized SiO@C/graphite (SiO@C/G) composite anode materials, with designed capacity of 600 mAh.g(-1), are successfully prepared through a pitch pyrolysis reaction method. The electrochemical performance of SiO@ C/G composite anodes with different carbon coating contents of 5 wt%, 10 wt%, 15 wt%, and 35 wt% is investigated. The results show that the SiO@C/G composite with 15-wt% carbon coating content exhibits the best cycle performance, with a high capacity retention of 90.7% at 25 degrees C and 90.1% at 45 degrees C after 100 cycles in full cells with LiNi0.5Co0.2Mn0.3O2 as cathodes. The scanning electron microscope (SEM) and electrochemistry impedance spectroscopy (EIS) results suggest that a moderate carbon coating layer can promote the formation of stable SEI film, which is favorable for maintaining good interfacial conductivity and thus enhancing the cycling stability of SiO electrode. |
| WOS关键词 | LITHIUM-ION BATTERIES ; SILICON |
| 资助项目 | State Grid Technology Project, China[DG71-17-010] ; National Key Research and Development Program of China[2017YFB0102004] ; National Natural Science Foundation of China[51822211] |
| WOS研究方向 | Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:000471658000001 |
| 出版者 | IOP PUBLISHING LTD |
| 资助机构 | State Grid Technology Project, China ; National Key Research and Development Program of China ; National Natural Science Foundation of China |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/30016]  |
| 专题 | 中国科学院过程工程研究所 |
| 通讯作者 | Yu, Xiqian; Li, Hong |
| 作者单位 | 1.Chinese Acad Sci, Inst Phys, Beijing Natl Lab Condensed Matter Phys, Beijing 100190, Peoples R China 2.Univ Chinese Acad Sci CAS, Sch Phys Sci, Beijing 100049, Peoples R China 3.Chinese Acad Sci, Inst Chem, CAS Res Grp High Energy Dens Lithium Batteries EV, Beijing 100190, Peoples R China 4.Chinese Acad Sci, Inst Proc Engn, Key Lab Green Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China 5.Tianmulake Excellent Anode Mat Co Ltd, Changzhou 213300, Peoples R China |
| 推荐引用方式 GB/T 7714 | Lu, Hao,Wang, Junyang,Liu, Bonan,et al. Influence of carbon coating on the electrochemical performance of SiO@C/graphite composite anode materials[J]. CHINESE PHYSICS B,2019,28(6):8. |
| APA | Lu, Hao.,Wang, Junyang.,Liu, Bonan.,Chu, Geng.,Zhou, Ge.,...&Li, Hong.(2019).Influence of carbon coating on the electrochemical performance of SiO@C/graphite composite anode materials.CHINESE PHYSICS B,28(6),8. |
| MLA | Lu, Hao,et al."Influence of carbon coating on the electrochemical performance of SiO@C/graphite composite anode materials".CHINESE PHYSICS B 28.6(2019):8. |
入库方式： OAI收割
来源：过程工程研究所
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