Surface Modification of Sulfur Electrodes by Chemically Anchored Cross-Linked Polymer Coating for Lithium-Sulfur Batteries

被引:41
|
作者
Lim, Sanghyun [1 ]
Thankamony, Roshni Lilly [1 ]
Yim, Taeeun [2 ]
Chu, Hodong [1 ]
Kim, Young-Jun [2 ]
Mun, Junyoung [3 ]
Kim, Tae-Hyun [1 ]
机构
[1] Incheon Natl Univ, Dept Chem, Organ Mat Synth Lab, Inchon 406772, South Korea
[2] Korea Elect Technol Inst, Adv Batteries Res Ctr, Songnam 463816, Gyeonggi Do, South Korea
[3] Incheon Natl Univ, Dept Energy & Chem Engn, Inchon 406772, South Korea
关键词
lithium-sulfur batteries; polymer coating; chemical bonding; Cu anchoring; sulfur electrode; polysulfide dissolution; COMPOSITE CATHODES; POROUS CARBON; PERFORMANCE; POLYSULFIDE;
D O I
10.1021/am508528p
中图分类号
TB3 [工程材料学];
学科分类号
0805 ; 080502 ;
摘要
Lithium-sulfur batteries suffer from severe self-discharge due to polysulfide dissolution into electrolytes. In this work, a chemically anchored polymer-coated (CAPC) sulfur electrode was prepared, through chemical bonding by coordinated Cu ions and cross-linking, to improve cyclability for Li/S batteries. This electrode retained specific capacities greater than 665 mAh g(-1) at high current density of 3.35 A g(-1) (2C rate) after 100 cycles with an excellent Coulombic efficiency of 100%.
引用
收藏
页码:1401 / 1405
页数:5
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