MXene-decorated SnS2/Sn3S4 hybrid as anode material for high-rate lithium-ion batteries

By Junfeng Li, Lu Han, Yuquan Li, Jinliang Li, Guang Zhu, Xiaojie Zhang, Ting Lu, Lijia Pan. 2020

195 citations recorded by the source corpus.

Abstract 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−1 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.

Subfields: Electrical and Electronic Engineering, Materials Chemistry

View Paper: https://www.semanticscholar.org/paper/11d6e594906947357a98d73094588d8887cb90a4