Sulfur Encapsulated in Graphitic Carbon Nanocages for High-Rate and Long-Cycle Lithium-Sulfur Batteries

被引：411
作者：
Zhang, Juan [1 ,2 ]
Yang, Chun-Peng [1 ,2 ]
Yin, Ya-Xia [1 ,2 ]
Wan, Li-Jun [1 ]
Guo, Yu-Guo [1 ,2 ]
机构：
[1] Chinese Acad Sci, Inst Chem, Beijing Natl Lab Mol Sci, CAS Key Lab Mol Nanostruct & Nanotechnol, Beijing 100190, Peoples R China
[2] Univ Chinese Acad Sci, Sch Chem & Chem Engn, Beijing 100049, Peoples R China
来源：
ADVANCED MATERIALS | 2016年 / 28卷 / 43期
基金：
中国国家自然科学基金;
关键词：
HIGH-PERFORMANCE; CATHODE MATERIAL; ANODE MATERIAL; HIGH-CAPACITY; GRAPHENE; COMPOSITE; ULTRAFAST; SUPERCAPACITORS; STABILITY; STORAGE;
D O I：
10.1002/adma.201602913
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Hybrid sp(2) carbon with a graphene backbone and graphitic carbon nanocages (G-GCNs) is demonstrated as an ideal host for sulfur in Li-S batteries, because it serves as highly efficient electrochemical nanoreactors as well as polysulfides reservoirs. The as-obtained S/(G-GCNs) with high S content exhibits superior high-rate capability (765 mA h g(-1) at 5 C) and long-cycle life over 1000 cycles.
引用
收藏
页码：9539 / +
页数：7
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