Ketjen Black-MnO Composite Coated Separator For High Performance Rechargeable Lithium-Sulfur Battery

被引：126

作者：

Qian, Xinye ^{[1
,2
]}

Jin, Lina ^{[1
]}

Zhao, Di ^{[1
]}

Yang, Xiaolong ^{[1
]}

Wang, Shanwen ^{[1
]}

Shen, Xiangqian ^{[1
]}

Rao, Dewei ^{[1
]}

Yao, Shanshan ^{[1
]}

Zhou, Youyuan ^{[3
]}

Xi, Xiaoming ^{[3
]}

机构：

[1] Jiangsu Univ, Coll Mat Sci & Engn, Inst Adv Mat, Zhenjiang 212013, Peoples R China

[2] Nanjing Univ, Lab Solid State Microstruct, Nanjing 210093, Jiangsu, Peoples R China

[3] Changsha Res Inst Min & Met, Hunan Engn Lab Power Battery Cathode Mat, Changsha 410012, Hunan, Peoples R China

来源：

ELECTROCHIMICA ACTA | 2016年 / 192卷

基金：

中国国家自然科学基金;

关键词：

KB-MnO coated separator; Li-S battery; lithium polysulfides; LI-S BATTERIES; CARBON NANOFIBERS; CATHODE MATERIAL; ANODE MATERIALS; ION BATTERIES; INTERLAYER; NANOPARTICLES; PARTICLES; STABILITY; PAPER;

D O I：

10.1016/j.electacta.2016.01.225

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

A Ketjen Black-MnO composite was prepared by wet impregnation and TEM images showed that the MnO nanoparticles were well enwrapped by Ketjen Black (KB). The as-prepared KB-MnO composite were coated on one side of the commercial separators for the improvement of electrochemical performances of Lithium-Sulfur battery. For comparison, conventional separator coated by KB and conventional separator without coating was used in reference Lithium-Sulfur batteries. Electrochemical tests suggested that KB-MnO coated separator could act as the upper current collector and the barrier of lithium polisulfides which consequently achieved higher charge/discharge capacity and more stable cycling stability. Furthermore, TEM elemental map demonstrated that KB-MnO composite was more favorable for the adsorption of lithium polysulfides than KB, therefore the electrochemical performances of Li-S batteries can be dramatically enhanced. (C) 2016 Elsevier Ltd. All rights reserved.

引用

页码：346 / 356

页数：11

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