Micro-Macroscopic Coupled Electrode Architecture for High-Energy-Density Lithium-Sulfur Batteries

doi:10.1021/acsaem.9b01389

CORC > 金属研究所 > 中国科学院金属研究所

	Micro-Macroscopic Coupled Electrode Architecture for High-Energy-Density Lithium-Sulfur Batteries
	Fang, Ruopian 2,3; Zhao, Shiyong 2,4,5; Wang, Da-Wei 3; Sun, Zhenhua 2; Cheng, Hui-Ming 1,2; Li, Feng 2,6
刊名	ACS APPLIED ENERGY MATERIALS
	2019-10-01
卷号	2 期号:10 页码:7393-7402
关键词	lithium sulfur batteries high sulfur loading carbon nanotubes self-assembly
ISSN号	2574-0962
DOI	10.1021/acsaem.9b01389
通讯作者	Wang, Da-Wei(da-wei.wang@unsw.edu.au) ; Li, Feng(fli@imr.ac.cn)
英文摘要	Practical implementation of lithium-sulfur (Li-S) batteries has been hindered by the difficulty of achieving satisfactory energy densities in a facile and sustainable way. The most widely adopted strategy aimed for improved energy density has been tailoring the microscopic structure of sulfur cathode materials to address fundamental challenges, which is, however, inadequate for the stabilization of the macroscopic cathode structure. Here, we propose a micro-macroscopic coupled electrode architecture comprising commercially available carbon nanotubes through a simple self-assembly and freeze-casting method. The microscopic structure of carbon nanotubes enables homogeneous accommodation of sulfur, and the self-assembled macroscopic interconnected framework provides abundant and interconnected channels for boosted transport of both electrons and lithium ions and well-localized polysulfide intermediates. With the use of the same carbon nanotube material, the micro-macroscopic coupled electrode shows obviously enhanced electrochemical performance in terms of high capacity and long cycle life as well as high sulfur loading, compared to a conventionally prepared electrode. This work sheds light on an avenue for achieving high-performance sulfur cathodes by demonstrating the effectiveness of macroscopic electrode design beyond complex design of microscopic material structures, which may be applicable in other battery systems.
资助项目	National Science Foundation of China[51525206] ; National Science Foundation of China[51521091] ; National Science Foundation of China[51972313] ; Ministry of Science and Technology of China[2016YFA0200100] ; Ministry of Science and Technology of China[2016YFB0100100] ; Chinese Academy of Science[XDA22010602] ; Chinese Academy of Science[KGZD-EW-T06] ; Program for Guangdong Introducing Innovative and Entrepreneurial Teams ; Development and Reform Commission of Shenzhen Municipality ; Australian Research Council[DP190101008] ; Economic, Trade and Information Commission of Shenzhen Municipality[201901171523]
WOS研究方向	Chemistry ; Energy & Fuels ; Materials Science
语种	英语
出版者	AMER CHEMICAL SOC
WOS记录号	WOS:000502688800049
资助机构	National Science Foundation of China ; Ministry of Science and Technology of China ; Chinese Academy of Science ; Program for Guangdong Introducing Innovative and Entrepreneurial Teams ; Development and Reform Commission of Shenzhen Municipality ; Australian Research Council ; Economic, Trade and Information Commission of Shenzhen Municipality
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/136626]
专题	金属研究所_中国科学院金属研究所
通讯作者	Wang, Da-Wei; Li, Feng
作者单位	1.Tsinghua Univ, Tsinghua Berkeley Shenzhen Inst, Shenzhen 518055, Guangdong, Peoples R China 2.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, 72 Wenhua Rd, Shenyang 110016, Liaoning, Peoples R China 3.Univ New South Wales, Sch Chem Engn, Sydney, NSW 2033, Australia 4.Curtin Univ, Dept Chem Engn, Perth, WA 6102, Australia 5.Curtin Univ, Fuels & Energy Technol Inst, Perth, WA 6102, Australia 6.Univ Sci & Technol China, Sch Mat Sci & Engn, Hefei 230026, Anhui, Peoples R China
推荐引用方式 GB/T 7714	Fang, Ruopian,Zhao, Shiyong,Wang, Da-Wei,et al. Micro-Macroscopic Coupled Electrode Architecture for High-Energy-Density Lithium-Sulfur Batteries[J]. ACS APPLIED ENERGY MATERIALS,2019,2(10):7393-7402.
APA	Fang, Ruopian,Zhao, Shiyong,Wang, Da-Wei,Sun, Zhenhua,Cheng, Hui-Ming,&Li, Feng.(2019).Micro-Macroscopic Coupled Electrode Architecture for High-Energy-Density Lithium-Sulfur Batteries.ACS APPLIED ENERGY MATERIALS,2(10),7393-7402.
MLA	Fang, Ruopian,et al."Micro-Macroscopic Coupled Electrode Architecture for High-Energy-Density Lithium-Sulfur Batteries".ACS APPLIED ENERGY MATERIALS 2.10(2019):7393-7402.