Activated clay of nest structure encapsulated sulfur cathodes for lithium-sulfur batteries

被引：8

作者：

Cao, Zhaoxia ^{[1
,2
,3
]}

Ma, Chao ^{[1
,2
,3
]}

Jia, Yujie ^{[1
,2
,3
]}

Sun, Zhixian ^{[1
,2
,3
]}

Yue, Hongyun ^{[1
,2
,3
]}

Yin, Yanhong ^{[1
,2
,3
]}

Yang, Shuting ^{[1
,2
,3
]}

机构：

[1] Henan Normal Univ, Sch Chem & Chem Engn, Xinxiang 453007, Henan, Peoples R China

[2] Engn Technol Res Ctr Mot Power & Key Mat Henan Pr, Xinxiang 453007, Henan, Peoples R China

[3] Henan Normal Univ, Collaborat Innovat Ctr Henan Prov Green Mot Power, Xinxiang 453007, Henan, Peoples R China

来源：

RSC ADVANCES | 2015年 / 5卷 / 36期

关键词：

LI-S BATTERIES; COMPOSITE; GRAPHENE; SYSTEM; CELLS;

D O I：

10.1039/c5ra02369f

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Activated clay (AC) with a nest-like structure and a large surface area was employed to support sulfur as the cathode for lithium-sulfur batteries. The special structure may have a similar effect to small filter screens for entrapping sulfur and restricting the diffusion of polysulfides during cycling. A high capacity of 959.6 mA h g(-1) was achieved at a rate of 0.1 C in the first cycle for the AC/S composite with a sulfur content of 57 wt% and the reversible capacity remained high at up to 700.9 mA h g(-1) even after 50 cycles.

引用

页码：28349 / 28353

页数：5

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