Improving the electrochemical performance of a natural molybdenite/N-doped graphene composite anode for lithium-ion batteries via short-time microwave irradiation

Abstract

In this work, low-cost natural molybdenite was used to make a MoS2/N-doped graphene composite with the aid of (3-aminopropyl)-triethoxysilane and the electrochemical performance was greatly improved by solvent-free microwave irradiation.

Amorphous C/SbSx composites from natural stibnite as low cost and high performance lithium/sodium-ion battery anodes

“…Transition metal sulfides are considered candidate anode materials for next generation LIBs or SIBs due to their vast reserves, high capacity and good conductivity. 2–4 Among them, Sb 2 S 3 has garnered significant interest as it provides high theoretical specific capacity (947 mA h g −1 for LIBs and NIBs) and good rate performance. 5 However, Sb 2 S 3 suffers from severe volume expansion during cycling, which leads to its rapid pulverization and poor cycling stability.…”

“…This method offers rapid processing, low energy consumption, and low equipment cost. 2,26 It is essential to meet certain requirements, including a solvent-free environment, addition of carbon materials, short microwave time, and fast cooling rate. Solvent-free and carbon material incorporation ensure a fast heating rate of the synthesis system, while a short microwave time and fast cooling rate prevent particle agglomeration and growth.…”

Strategically Controlled Flash Irradiation on Silicon Anode for Enhancing Cycling Stability and Rate Capability toward High-Performance Lithium-Ion Batteries

“…Considering that battery electrodes are manufactured with ultrahigh productivity in a commercial production line (i.e., web speed of 120 m min –1 for coating and drying of the electrode), a novel annealing method is necessary to enable the precise thermal treatment of the binders and electrode composite materials within an ultrashort period. Some high-energy irradiation techniques (e.g., microwave-, − gamma-, plasma jet-, and proton-irradiation) have been attempted to improve the battery performance in the previous studies. However, their extensive use in practical applications still has been limited by their necessity of ultrahigh vacuum condition, long processing period, and incompatibility of the roll-to-roll manufacturing system.…”