中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
A bifunctional thiobenzamide additive for improvement of cathode kinetics and anode stability in lithium-sulfur batteries

文献类型:期刊论文

作者Rao, Junpeng1,2; Yu, Tong2; Zhou, Youshuang1; Xiao, Ru2,3; Wang, Yaozu2,3; Qu, Zhuoyan2,3; Shi, Dean1; Sun, Zhenhua2; Li, Feng2
刊名CHEMICAL ENGINEERING JOURNAL
出版日期2024-10-15
卷号498页码:9
关键词Lithium-sulfur batteries Electrolyte additive Thiobenzamide additive Sulfur kinetics Anode stability
ISSN号1385-8947
DOI10.1016/j.cej.2024.155807
通讯作者Shi, Dean(deanshi2012@hubu.edu.cn) ; Sun, Zhenhua(zhsun@imr.ac.cn) ; Li, Feng(fli@imr.ac.cn)
英文摘要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.
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
语种英语
WOS记录号WOS:001317580100001
出版者ELSEVIER SCIENCE SA
资助机构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
源URL  
专题金属研究所_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.

入库方式: OAI收割

来源:金属研究所

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