Mesoporous TiN microspheres as an efficient polysulfide barrier for lithium-sulfur batteries

doi:10.1039/c8ta04920c

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	Mesoporous TiN microspheres as an efficient polysulfide barrier for lithium-sulfur batteries
	Qi, B ; Zhao, XS ; Wang, SG ; Chen, K 1,3; Wei, YJ ; Chen, G 2; Gao, Y ; Zhang, D ; Sun, ZH ; Li, F 1
刊名	JOURNAL OF MATERIALS CHEMISTRY A
	2018-08-07
卷号	6 期号:29 页码:14359-14366
ISSN号	2050-7488
DOI	10.1039/c8ta04920c
英文摘要	Although lithium-sulfur batteries are expected to be the promising next generation of energy storage systems, the shuttle effect of polysulfides severely hampers their practical application. In this study, we introduce mesoporous titanium nitride microspheres to decorate the commercial separator and effectively suppress the shuttle effect. Specifically, titanium nitride improves the utilization of sulfur as an upper current collector through its strong chemical adsorption for polysulfides and high conductivity. In addition, its mesoporous spherical structure also forms a favorable physical barrier to block the diffusion of polysulfides. With this titanium nitride modified separator, the cell exhibits an excellent capacity retention ratio of 76% after 200 cycles at 0.5C. A relatively high capacity of 672 mA h g(-1) is obtained even at a high current density of 3C. These results suggest that the design of separators modified with transition metal nitride-based materials is a promising approach for developing high performance lithium-sulfur batteries.
学科主题	Chemistry, Physical ; Energy & Fuels ; Materials Science, Multidisciplinary
语种	英语
WOS记录号	WOS:000443116700039
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/80033]
专题	金属研究所_中国科学院金属研究所
作者单位	1.Jilin Univ, Coll Phys, Minist Educ, Key Lab Phys & Technol Adv Batteries, Changchun 130012, Jilin, Peoples R China 2.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Liaoning, Peoples R China 3.Jilin Univ, State Key Lab Superhard Mat, Changchun 130012, Jilin, Peoples R China 4.Shanghai Tech Univ, Sch Phys Sci & Technol, Shanghai 201210, Peoples R China
推荐引用方式 GB/T 7714	Qi, B,Zhao, XS,Wang, SG,et al. Mesoporous TiN microspheres as an efficient polysulfide barrier for lithium-sulfur batteries[J]. JOURNAL OF MATERIALS CHEMISTRY A,2018,6(29):14359-14366.
APA	Qi, B.,Zhao, XS.,Wang, SG.,Chen, K.,Wei, YJ.,...&Li, F.(2018).Mesoporous TiN microspheres as an efficient polysulfide barrier for lithium-sulfur batteries.JOURNAL OF MATERIALS CHEMISTRY A,6(29),14359-14366.
MLA	Qi, B,et al."Mesoporous TiN microspheres as an efficient polysulfide barrier for lithium-sulfur batteries".JOURNAL OF MATERIALS CHEMISTRY A 6.29(2018):14359-14366.