期刊
INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE
卷 15, 期 2, 页码 1426-1436出版社
ESG
DOI: 10.20964/2020.02.26
关键词
MIL-101(Cr); Lithium-sulfur battery; CNTs; Shuttle effect
资金
- National Natural Science Foundation of China [11264023]
- HongLiu first-class disciplines Development Program of Lanzhou University of Technology
Lithium sulfur batteries have high theoretical specific capacity and good application prospects. In this paper, large surface area mesoporous chromium MIL-101 (Cr) metal organic framework has been prepared by hydrothermal method and composite with carbon nanotubes (CNTs) as the houst of sulfur. The composite electrode material of MIL-101@CNT/S shows the excellent electrochemical performance. Especially the MIL-101@5%CNT/S composite electrode material, when the current density at 0.1C, it has a high initial discharge capacity of 1236.7 mA h g(-1), and its specific capacity retention rate reaches 53.4% after 200 cycles. What's more, thanks to the addition of CNTs, the results have better high multiplier performance than MIL-101 (Cr)/S, and the capacity contributed by the second platform has been improved.
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