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

被引：42

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

页码：1431 / 1436

页数：6

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