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Oriented outperforms disorder: Thickness-independent mass transport for lithium-sulfur batteries

文献类型：期刊论文

作者Fan, Xia-Lu2,3; Ping, Lin-Quan2,3; Qi, Fu-Lai2; Ghazi, Zahid Ali2; Tang, Xiao-Nan4; Fang, Ruo-Pian1; Sun, Zhen-Hua2; Cheng, Hui-Ming2,5; Liu, Chang2; Li, Feng2
刊名CARBON
出版日期2019-12-01
卷号154页码:90-97
ISSN号0008-6223
DOI10.1016/j.carbon.2019.07.087
通讯作者Liu, Chang(cliu@imr.ac.cn) ; Li, Feng(fli@imr.ac.cn)
英文摘要Extreme fast charging in a thick electrode film is critical for high rate lithium sulfur batteries. However, the high ion-path tortuosity of most carbon/sulfur cathodes dramatically hinder their mass transport, thus leading to poor rate performance. This situation goes worse with increasing the electrode thickness. Here, we report a binder-free vertically-aligned carbon nanotube/sulfur (VACNT/S) cathode with an excellent thickness-independent mass transport and high-rate performance. Compared with a conventional disordered carbon nanotube/sulfur electrode, the highly conductive VACNTs provide directional paths for the ultrafast transfer of both lithium ions and electrons, leading to improved kinetics and a stable redox activity. The VACNT/S electrode shows an extremely high initial specific capacity of 894 mA h g(-1)at a 5 C rate, and very stable charge/discharge performance with a capacity of 486.1 mA h g(-1) after 400 cycles and a low capacity decay rate of 0.1% per cycle. This work demonstrates an efficient pathway for the design of electrodes for high-rate lithium sulfur batteries. (C) 2019 Elsevier Ltd. All rights reserved.
资助项目MOST[2016YFA0200100] ; MOST[2016YFB0100100] ; National Natural Science Foundation of China[51525206] ; National Natural Science Foundation of China[51625203] ; National Natural Science Foundation of China[51521091] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDA22010602] ; Youth Innovation Promotion Association of the Chinese Academy of Sciences[2015150] ; Key Research Program of the Chinese Academy of Sciences[KGZD-EW-T06] ; Program for Guangdong Innovative and Entrepreneurial Team Program[2017ZT07C341] ; Development and Reform Commission of Shenzhen Municipality for the development of the Low-Dimensional Materials and Devices discipline
WOS研究方向Chemistry ; Materials Science
语种英语
出版者PERGAMON-ELSEVIER SCIENCE LTD
WOS记录号WOS:000488203600012
资助机构MOST ; National Natural Science Foundation of China ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Youth Innovation Promotion Association of the Chinese Academy of Sciences ; Key Research Program of the Chinese Academy of Sciences ; Program for Guangdong Innovative and Entrepreneurial Team Program ; Development and Reform Commission of Shenzhen Municipality for the development of the Low-Dimensional Materials and Devices discipline
源URL[http://ir.imr.ac.cn/handle/321006/135671]  
专题金属研究所_中国科学院金属研究所
通讯作者Liu, Chang; Li, Feng
作者单位1.Univ New South Wales, Sch Chem Engn, Sydney, NSW 2033, Australia
2.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Liaoning, Peoples R China
3.Univ Sci & Technol China, Sch Mat Sci & Engn, Hefei 230026, Anhui, Peoples R China
4.Shandong Univ Technol, Sch Chem Engn, Zibo 255049, Peoples R China
5.Tsinghua Univ, TBSI, Shenzhen Geim Graphene Ctr, Shenzhen 518055, Peoples R China
推荐引用方式
GB/T 7714		 Fan, Xia-Lu,Ping, Lin-Quan,Qi, Fu-Lai,et al. Oriented outperforms disorder: Thickness-independent mass transport for lithium-sulfur batteries[J]. CARBON,2019,154:90-97.
APA Fan, Xia-Lu.,Ping, Lin-Quan.,Qi, Fu-Lai.,Ghazi, Zahid Ali.,Tang, Xiao-Nan.,...&Li, Feng.(2019).Oriented outperforms disorder: Thickness-independent mass transport for lithium-sulfur batteries.CARBON,154,90-97.
MLA Fan, Xia-Lu,et al."Oriented outperforms disorder: Thickness-independent mass transport for lithium-sulfur batteries".CARBON 154(2019):90-97.

入库方式： OAI收割

来源：金属研究所

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