期刊
CHEMICAL ENGINEERING JOURNAL
卷 380, 期 -, 页码 -出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.cej.2019.122590
关键词
MXene; SnS2; Sn3S4; Lithium-ion batteries; Electrochemical performance
资金
- National Natural Science Foundation of China [51702056]
- China Postdoctoral Science Foundation [2017M622902]
- Important Project of Anhui Provincial Education Department [KJ2018A0446]
The combination of transitional metal dichalcogenides with MXene is an effective strategy to explore high-performance anode materials for lithium-ion batteries (LIBs). In this work, SnS2/Sn3S4 hybrid decorated on Ti3C2 MXene (S-TC) was prepared through a facile solvothermal and calcination process. The multi-layered Ti3C2 matrix improves the electron transport capability, inhibits the aggregation and accommodates the volume change of SnS2/Sn3S4 hybrid, while the SnS2/Sn3S4 hybrid confined in the multilayer stacks serves as a spacer to decrease the tendency of layer restacking and improves the limited capacities of Ti3C2. Besides, the nano-sized SnS2/Sn3S4 hybrid with high specific surface area also enhances the contact between electrolyte and electrode. When used as anode for LIBs, S-TC demonstrates a good cycling stability (462.3 mAh g at 100 mA g(-1) after 100 cycles) and superior rate performance (216.5 mAh g(-1) at 5000 mA g(-1)). The strategy in this work should provide a new insight into fabricating novel MXene-based anode material for high-rate LIBs.
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