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Micro-Mesopores Nitrogen-Doped Carbon Combined Polar-MoS2 as Host for High-Performance Li-S Batteries
被引:8
作者:
Zhao, Liping
[1
,2
]
Liu, Gang
[2
]
Xu, Shuoyan
[1
]
Zhao, Ye
[3
]
Wang, Ya
[2
]
Li, Dan
[1
]
Fu, Fang
[1
]
Zheng, Yue
[1
]
Xie, Haiming
[1
]
Zhang, Peng
[2
]
机构:
[1] Northeast Normal Univ, Fac Chem, Nation & Local United Engn Lab Power Batteries, 5268 Renmin St, Changchun 130024, Peoples R China
[2] Jilin Engn Normal Univ, Inst Chem & Ind Bioengn, 3050 Kaixuan Rd, Changchun 130052, Peoples R China
[3] FAW Tooling Die Mfg Co Ltd, 1999 Jieda Rd, Changchun 130013, Peoples R China
关键词:
Electrochemistry;
Li-S Batteries;
Mesoporous materials;
Nitrogen-Doped;
Polar-MoS2;
ATOMIC LAYER DEPOSITION;
LITHIUM POLYSULFIDE;
SULFUR CATHODES;
NANOSHEETS;
NANOTUBES;
NANOPARTICLES;
ARCHITECTURE;
COMPOSITES;
CONVERSION;
STORAGE;
D O I:
10.1002/slct.201904685
中图分类号:
O6 [化学];
学科分类号:
0703 ;
摘要:
A composite of MoS2/MMNC (micro-mesopores nitrogen-doped carbon) was prepared through a simple hydrothermal method and utilized as a host for Li-S battery. The crystal structure of MoS2/MMNC-S composite were tested by X-ray diffraction (XRD), Raman Spectroscopy and X-ray photoelectron spectroscopy (XPS). Scanning electron microscopy (SEM) and transmission electron microscopy (TEM) were used to characterize its morphology. The pore size distribution and weight ratio of sulfur were measured via N-2 adsorption-desorption isotherm and thermogravimetric analysis (TGA), respectively. MoS2/MMNC-S composite showed a good electrochemical performance as the positive electrode for Li-S battery. The rate performance of the battery is ideal and the capacity retention is maintained at similar to 90% after 200 cycles at 0.5 C.
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页码:3098 / 3104
页数:7
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