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

来源：

ACS APPLIED MATERIALS & INTERFACES | 2015年 / 7卷 / 03期

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

页码：1401 / 1405

页数：5

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