A bifunctional thiobenzamide additive for improvement of cathode kinetics and anode stability in lithium-sulfur batteries

doi:10.1016/j.cej.2024.155807

IMR OpenIR

	A bifunctional thiobenzamide additive for improvement of cathode kinetics and anode stability in lithium-sulfur batteries
	Rao, Junpeng 1,2; Yu, Tong 2; Zhou, Youshuang 1; Xiao, Ru 2,3; Wang, Yaozu 2,3; Qu, Zhuoyan 2,3; Shi, Dean 1; Sun, Zhenhua 2; Li, Feng 2
通讯作者	Shi, Dean(deanshi2012@hubu.edu.cn) ; Sun, Zhenhua(zhsun@imr.ac.cn) ; Li, Feng(fli@imr.ac.cn)
	2024-10-15
发表期刊	CHEMICAL ENGINEERING JOURNAL
ISSN	1385-8947
卷号	498 页码:9
摘要	Lithium-sulfur batteries (LSBs) are considered as the key candidates for the next generation of energy storage devices. However, the practical applications of LSBs are hindered by the slow conversion of sulfur species and the inhomogeneous Li+ precipitation /stripping of lithium anode. Here, we report a bifunctional thiobenzamide electrolyte additive, 4-(trifluoromethyl) thiobenzamide (TFBCA), which synergistically improves cathode redox kinetics and anode stability. Polysulfides (LiPSn) are in-situ transferred to more reactive polysulfide intermediates (T-S-n-T), which significantly improve the liquid-solid reduction process by promoting the deposition dimension of Li2S. A LiF/Li3N-rich solid electrolyte interphase is formed with TFBCA, the uniform lithium deposition is achieved and the growth of lithium dendrites is suppressed. Correspondingly, LSBs with TFBCA show a high capacity (888 mAhg(-1) at 5C) and cycling stability (0.055 % per cycle after 600 cycles at 2C). Even under high sulfur loading (7.1 mgcm(-2)) and low E/S ratio of 7, the LSBs also exhibit an areal capacity of 7 mAhcm(-2) after 50 cycles, and an energy density of 314 Whkg(-1) is achieved for the pouch cell. This work demonstrates an efficient additive strategy through molecular structure design to construct high-performance LSBs.
关键词	Lithium-sulfur batteries Electrolyte additive Thiobenzamide additive Sulfur kinetics Anode stability
资助者	National Natural Science Foundation of China ; National Key R & D Program of China ; China Postdoctoral Science Foundation ; China National Postdoctoral Program for Innova-tive Talents
DOI	10.1016/j.cej.2024.155807
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China[51973052] ; National Natural Science Foundation of China[52203364] ; National Key R & D Program of China[2021YFC2800200] ; China Postdoctoral Science Foundation[2022M713214] ; China National Postdoctoral Program for Innova-tive Talents[BX2021321]
WOS研究方向	Engineering
WOS类目	Engineering, Environmental ; Engineering, Chemical
WOS记录号	WOS:001317580100001
出版者	ELSEVIER SCIENCE SA
引用统计
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/190158
专题	中国科学院金属研究所
通讯作者	Shi, Dean; Sun, Zhenhua; Li, Feng
作者单位	1.Hubei Univ, Sch Mat Sci & Engn, Hubei Key Lab Polymer Mat, Minist Educ,Key Lab Green Preparat & Applicat Func, Wuhan 430062, Peoples R China 2.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China 3.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Rao, Junpeng,Yu, Tong,Zhou, Youshuang,et al. A bifunctional thiobenzamide additive for improvement of cathode kinetics and anode stability in lithium-sulfur batteries[J]. CHEMICAL ENGINEERING JOURNAL,2024,498:9.
APA	Rao, Junpeng.,Yu, Tong.,Zhou, Youshuang.,Xiao, Ru.,Wang, Yaozu.,...&Li, Feng.(2024).A bifunctional thiobenzamide additive for improvement of cathode kinetics and anode stability in lithium-sulfur batteries.CHEMICAL ENGINEERING JOURNAL,498,9.
MLA	Rao, Junpeng,et al."A bifunctional thiobenzamide additive for improvement of cathode kinetics and anode stability in lithium-sulfur batteries".CHEMICAL ENGINEERING JOURNAL 498(2024):9.