Anchoring and boosting: Ferrocene-based separators used to eliminate the polysulfide shuttle effect for Li-S batteries

被引：9
|
作者：
Dong, Qin [1 ]
Wang, Tao [1 ]
Su, Die [1 ]
Gan, Ruiyi [1 ]
Shao, Minhua [3 ]
Li, Cunpu [1 ,2 ]
Liu, Qingfei [1 ]
Wei, Zidong [1 ,2 ]
机构：
[1] Chongqing Univ, Coll Chem & Chem Engn, State Key Lab Power Transmiss Equipment & Syst Sec, Chongqing Key Lab Chem Proc Clean Energy & Resourc, Chongqing 400044, Peoples R China
[2] Chongqing Univ, Suining Lithium Battery Res Inst, Suining 629000, Peoples R China
[3] Hong Kong Univ Sci & Technol, Dept Chem & Biol Engn, Clear Water Bay, Hong Kong, Peoples R China
来源：
JOURNAL OF MEMBRANE SCIENCE | 2023年 / 678卷
基金：
中国国家自然科学基金;
关键词：
Lithium -sulfur battery; Ferrocene-modified separator; Polysulfide shuttling; Thermodynamic anchoring; Kinetic accelerated interconversions; MEMBRANE; ELECTRODE;
D O I：
10.1016/j.memsci.2023.121660
中图分类号：
TQ [化学工业];
学科分类号：
0817 ;
摘要：
The commercialization of Li-S batteries has been seriously hampered by the infamous "shuttle effect" of soluble lithium polysulfide intermediates (LiPSs, Li2Sx, 4 <= x <= 8) and sluggish sulfur species conversion kinetics. In this work, vinyl ferrocene and styrene were copolymerized onto a polypropylene (PP) separator to prevent LiPS shuttling based on the electrostatic and orbital interactions between ferrocene and LiPSs, which increased the reactivity of LiPSs. Therefore, the "shuttle effect" can be successfully suppressed by a separator that combines thermodynamic anchoring and kinetic acceleration for LiPSs.
引用
收藏
页数：9
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