Electrocatalysis on Separator Modified by Molybdenum Trioxide Nanobelts for Lithium-Sulfur Batteries

doi:10.1002/admi.201800243

	Electrocatalysis on Separator Modified by Molybdenum Trioxide Nanobelts for Lithium-Sulfur Batteries
	Xin, Y; Li, Q; Zhang, ZL; Zheng L(郑雷); erson, JA; Huang, YH; Zheng, L; Imtiaz, S; Zafar, ZA; Razaq, R
刊名	ADVANCED MATERIALS INTERFACES
	2018
卷号	5 期号:15 页码:1800243
关键词	electrocatalysis lithium-sulfur battery molybdenum trioxide polysulfide shuttle
ISSN号	2196-7350
DOI	10.1002/admi.201800243
文献子类	Article
英文摘要	Lithium-sulfur batteries (LSBs) have been regarded as the supreme feasible future generation energy storage system for high-energy applications due to the exceptional-specific energy density of 2600 Wh kg(-1) and theoretical-specific capacity of 1675 mAh g(-1). Nevertheless, some key challenges which are linked with polysulfide shuttling and sluggish kinetics of polysulfide conversion are the main obstacles in the high electrochemical performance of LSBs. Here, a molybdenum trioxide (MoO3) nanobelt catalytic layer is fabricated on the separator to solve these issues. The MoO3 layer shows strong chemical interaction with polysulfides by successfully blocking the polysulfides on the separator from shuttling and significantly accelerates the redox reaction of polysulfide conversion. Furthermore, the randomly arranged layers of MoO3 nanobelts possess enough porous networks that provide effective space for electrolyte infiltration and facile pathway for fast ion transportation. The resultant LSBs exhibit a very high initial capacity of 1377 mAh g(-1). After 200 cycles at 0.5 C, the capacity is 684.4 mAh g(-1) with the fading rate of only 0.251% per cycle. Additionally, the MoO3 modification provides good surface protection of lithium anode and depresses the lithium anode degradation.
WOS关键词	LI-S BATTERIES ; ENHANCED ELECTROCHEMICAL PERFORMANCE ; CATHODE MATERIALS ; CARBON NANOTUBES ; OXIDE MEMBRANE ; MOO3 NANOBELTS ; POROUS CARBONS ; ION BATTERIES ; KETJEN BLACK ; POLYSULFIDE
WOS研究方向	Chemistry ; Materials Science
语种	英语
WOS记录号	WOS:000441125500007
内容类型	期刊论文
源URL	[http://ir.ihep.ac.cn/handle/311005/286195]
专题	高能物理研究所_多学科研究中心高能物理研究所_粒子天体物理中心
作者单位	中国科学院高能物理研究所
推荐引用方式 GB/T 7714	Xin, Y,Li, Q,Zhang, ZL,et al. Electrocatalysis on Separator Modified by Molybdenum Trioxide Nanobelts for Lithium-Sulfur Batteries[J]. ADVANCED MATERIALS INTERFACES,2018,5(15):1800243.
APA	Xin, Y.,Li, Q.,Zhang, ZL.,郑雷.,erson, JA.,...&Sun, D.(2018).Electrocatalysis on Separator Modified by Molybdenum Trioxide Nanobelts for Lithium-Sulfur Batteries.ADVANCED MATERIALS INTERFACES,5(15),1800243.
MLA	Xin, Y,et al."Electrocatalysis on Separator Modified by Molybdenum Trioxide Nanobelts for Lithium-Sulfur Batteries".ADVANCED MATERIALS INTERFACES 5.15(2018):1800243.