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Abstract:
Molybdenum disulfide (MoS2) has been the focus of research on anode materials for lithium-ion batteries with its high theoretical capacity (662 mAhg−1) and large layer spacing (0.62 nm). However, due to the poor inherent electronic/ionic conductivity of MoS2 and the serious change in the volume of the electrode material during the charge-discharge cycle, the specific capacity of MoS2 rapidly decays, hindering the MoS2 material as a battery electrode. In this work, a novel C/SnS/MoS2 nanotube was designed and synthesized. Specifically, Sn was coated with Sn-MOF on one-dimensional MoO3 nanoribbons, and then vulcanized to obtain C/SnS/MoS2 nanotubes that retained the surface nanosheet structure. This preparation method not only retains the nanosheet structure of the surface but also leaves a thin layer of amorphous carbon on the surface. Thanks to the superior structural design, there is a synergy between SnS and MoS2, which not only improves the conductivity but also improves the stability of the battery cycle. When used as electrode material, the composite can maintain 1110.2 mAhg−1 discharge specific capacity after 80 cycles at 0.1 Ag−1 current density and 801.7 mAhg−1 discharge specific capacity after 860 cycles at 2 Ag−1 high current density. © 2024 Chinese Vacuum Society. All rights reserved.
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真空科学与技术学报
ISSN: 1672-7126
CN: 11-5177/TB
Year: 2024
Issue: 4
Volume: 44
Page: 341-349
Cited Count:
SCOPUS Cited Count: 1
ESI Highly Cited Papers on the List: 0 Unfold All
WanFang Cited Count:
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30 Days PV: 0
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