A functional interlayer as a polysulfides blocking layer for high-performance lithium-sulfur batteries

被引：37
|
作者：
Yin, Lingxia [1 ]
Dou, Hui [1 ]
Wang, Aixiu [1 ]
Xu, Guiyin [1 ]
Nie, Ping [1 ]
Chang, Zhi [1 ]
Zhang, Xiaogang [1 ]
机构：
[1] Nanjing Univ Aeronaut & Astronaut, Coll Mat Sci & Technol, Jiangsu Key Lab Mat & Technol Energy Convers, Nanjing 210016, Jiangsu, Peoples R China
来源：
NEW JOURNAL OF CHEMISTRY | 2018年 / 42卷 / 02期
基金：
中国国家自然科学基金;
关键词：
ONE-STEP SYNTHESIS; CATHODE MATERIAL; GRAPHENE OXIDE; ENHANCED PERFORMANCE; CYCLE PERFORMANCE; CARBON PAPER; COMPOSITE; POLYANILINE; NANOTUBE; FILM;
D O I：
10.1039/c7nj03675b
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
A new Li-S battery with a polyaniline-graphene oxide (PANI-GO) membrane sandwiched between a sulfur cathode and a separator shows high cycling stability and enhanced rate performance. The initial specific capacity is 1261 mA h g(-1) at 0.5C and the capacity retention is 73.0% after 150 cycles. The excellent electrochemical performance can be attributed to the new cell configuration. Specifically, the PANI-GO membrane can not only effectively mitigate the diffusion of lithium polysulfides to the negative electrode by a chemical interaction between the imine group (-N=) of the quinoid ring and polysulfides, but also improve sulfur utilization due to its conductive networks.
引用
收藏
页码：1431 / 1436
页数：6
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