Freestanding carbon fiber cloth/sulfur composites for flexible room-temperature sodium-sulfur batteries

被引：191

作者：

Lu, Qiongqiong ^{[1
]}

Wang, Xinyu ^{[1
]}

Cao, Jun ^{[1
]}

Chen, Chen ^{[1
]}

Chen, Kena ^{[1
]}

Zhao, Zifang ^{[1
]}

Niu, Zhiqiang ^{[1
]}

Chen, Jun ^{[1
]}

机构：

[1] Nankai Univ, Coll Chem, Key Lab Adv Energy Mat Chem, Minist Educ, Tianjin 300071, Peoples R China

来源：

ENERGY STORAGE MATERIALS | 2017年 / 8卷

关键词：

Carbon fiber cloth; Sulfur composite; Room-temperature; Flexible sodium-sulfur batteries; LI-S BATTERIES; LITHIUM ION BATTERIES; HIGH-PERFORMANCE; ELECTRODE MATERIALS; RECHARGEABLE BATTERIES; CATHODE MATERIALS; CELL CHEMISTRY; GRAPHENE; SUPERCAPACITORS; DISCHARGE;

D O I：

10.1016/j.ensm.2017.05.001

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Carbon fiber cloth/sulfur (CFC/S) composites were prepared by loading sulfur in the carbon fiber cloth (CFC) that was obtained by carbonizing the renewable cotton cloth. The CFC/S composites are the excellent cathodes of room-temperature sodium- sulfur (RT Na-S) batteries due to their three-dimensional (3D) interconnected network and high electrolyte uptake of 1156%. The CFC/S composite with area sulfur loading of 2 mg cm(-2) displays an initial discharge capacity of 390 mA h g(-1) at 0.1 C ( 1 C=1675 mA g(-1)) and a capacity of 120 mA h g(-1) after 300 cycles with tetra ethylene glycol dimethyl ether liquid electrolyte. Furthermore, since the freestanding CFC/S composites exhibit good flexibility and conductivity, they can serve as the cathodes of flexible RT Na-S batteries. As a proof of concept, the soft-packaged RT Na-S batteries were fabricated. The capacity of soft-packaged RT Na-S batteries can remain stable when the batteries are bent.

引用

页码：77 / 84

页数：8

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