Carbon nanotube-supported MoSe2 nanoflakes as an interlayer for lithium-sulfur batteries

被引：0

作者：

Shao, Zhi-Tao ^{[1
]}

Wu, Li-Li ^{[1
,2
]}

Yang, Yue ^{[1
]}

Ma, Xin-Zhi ^{[1
]}

Li, Lu ^{[1
]}

Ye, Hong-Feng ^{[1
]}

Zhang, Xi-Tian ^{[1
]}

机构：

[1] Key Laboratory for Photonic and Electronic Bandgap Materials, Ministry of Education, School of Physics and Electronic Engineering, Harbin Normal University, Harbin,150025, China

[2] Center for Engineering Training and Basic Experimentation, Heilongjiang University of Science and Technology, Harbin,150022, China

来源：

Xinxing Tan Cailiao/New Carbon Materials | 2021年 / 36卷 / 01期

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摘要：

Intrinsic polysulfide shuttling is the most fatal problem with Li-S batteries but it can be suppressed by functionalizing the separators with strong lithium polysulfide absorbents. Carbon nanotube (CNT)-supported MoSe2 nanoflakes with a large interlayer spacing were coated on a commercial polypropylene separator to build an efficient barrier (M/C-PP) to polysulfide shuttling for Li-S batteries. The battery with the separator had initial specific capacities of 1 485 and 880 mAh g−1 at 0.1 and 2 C, respectively, and an excellent long-term cycling stability with a low decay rate of 0.093% per cycle at 0.5 C after 300 cycles. This excellent performance was attributed to the strong adsorption of polysulfides by MoSe2 and the fast charge transport channels provided by the CNTs. Copyright ©2021 NEW CARBON MATERIALS. All rights reserved.

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页码：219 / 226