Hierarchical WSe2 nanoflower as a cathode material for rechargeable Mg-ion batteries

Transition metal dichalcogenides (TMDs) have emerged as a promising material in the energy field due to their unique structural arrangement. In this work, ordered flower-like WSe2 nanosheet was synthesized through simple one-step hydrothermal method, and its cathode application for rechargeable Mg-ion batteries was assessed. The WSe2 cathode exhibits a high reversible capacity above 265 mAh g(-1) at 50 mA g(-1), excellent cycling life of 90% initial capacitance that can be ceaselessly harvested for 100 cycles at 50 mA g(-1), and superior rate capability of 70% initial capacitance maintained even at the current density of 500 mA g(-1). This work paves the way for the application of WSe2 cathode in Mg-ion and other rechargeable batteries. (C) 2020 Elsevier Inc. All rights reserved.

Automated summary

Transition metal dichalcogenides have emerged as promising materials in the energy field due to their unique structural arrangement. In this work, ordered flower-like WSe2 nanosheet was successfully synthesized through a simple hydrothermal method and showed excellent performance as a cathode in rechargeable Mg-ion batteries.