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Sulfur Encapsulated in Graphitic Carbon Nanocages for High‐Rate and Long‐Cycle Lithium–Sulfur Batteries
Author(s) -
Zhang Juan,
Yang ChunPeng,
Yin YaXia,
Wan LiJun,
Guo YuGuo
Publication year - 2016
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.201602913
Subject(s) - nanocages , materials science , sulfur , lithium (medication) , carbon fibers , lithium–sulfur battery , nanotechnology , chemical engineering , organic chemistry , catalysis , metallurgy , composite material , composite number , electrochemistry , electrode , chemistry , medicine , engineering , endocrinology
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.