One-step room-temperature electrochemical production of 2H-molybdenum disulfide (2H-MoS2) powders as anode materials for lithium-ion batteries

Abstract

Two-dimensional (2D) molybdenum disulfide (MoS₂) has emerged as a promising anode material for lithium-ion batteries (LIBs) due to its high theoretical capacity and layered crystal structure. Nevertheless, conventional synthesis techniques are often costly, energy-intensive, and involve complex processing. In this study, we developed a simple, scalable, and room-temperature (25 °C) electrochemical method to synthesize 2H-phase MoS₂ powders using a one-step cyclic voltammetry process with low-cost precursors. This approach eliminates the need for high-temperature treatments and enables direct powder formation. The synthesized materials were structurally and morphologically confirmed by standard characterization methods. When used as anode materials in LIBs, the optimized MoS₂ powders exhibited a high initial specific capacity of ∼820 mA h g⁻¹ at 0.1C. The electrodes also demonstrated excellent rate capability and cycling stability, retaining over 95% coulombic efficiency after 100 cycles. These findings highlight the potential of electrochemically synthesized MoS₂ as a cost-effective and high-performance anode material for next-generation lithium-ion batteries.