Sulfur Encapsulated in Graphitic Carbon Nanocages for High-Rate and Long-Cycle Lithium-Sulfur Batteries.
Hybrid sp2carbon 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-1at 5 C) and long-cycle life over 1000 cycles.
CAS Key Laboratory of Molecular Nanostructure and Nanotechnology, Beijing National Laboratory for Molecular Science, Institute of Chemistry, Chinese Academy of Sciences (CAS), Beijing, 100190, P. R. China.|School of Chemistry and Chemical Engineering University of Chinese Academy of Sciences, Beijing, 100049, P. R. China.
Juan
J
Zhang
CAS Key Laboratory of Molecular Nanostructure and Nanotechnology, Beijing National Laboratory for Molecular Science, Institute of Chemistry, Chinese Academy of Sciences (CAS), Beijing, 100190, P. R. China.|School of Chemistry and Chemical Engineering University of Chinese Academy of Sciences, Beijing, 100049, P. R. China.
Chun-Peng
CP
Yang
CAS Key Laboratory of Molecular Nanostructure and Nanotechnology, Beijing National Laboratory for Molecular Science, Institute of Chemistry, Chinese Academy of Sciences (CAS), Beijing, 100190, P. R. China.|School of Chemistry and Chemical Engineering University of Chinese Academy of Sciences, Beijing, 100049, P. R. China.
Ya-Xia
YX
Yin
CAS Key Laboratory of Molecular Nanostructure and Nanotechnology, Beijing National Laboratory for Molecular Science, Institute of Chemistry, Chinese Academy of Sciences (CAS), Beijing, 100190, P. R. China.
Li-Jun
LJ
Wan
CAS Key Laboratory of Molecular Nanostructure and Nanotechnology, Beijing National Laboratory for Molecular Science, Institute of Chemistry, Chinese Academy of Sciences (CAS), Beijing, 100190, P. R. China.|School of Chemistry and Chemical Engineering University of Chinese Academy of Sciences, Beijing, 100049, P. R. China.
Yu-Guo
YG
Guo
Li-S batteries; carbon nanostructures; graphene; nanocages; sulfur cathodes