In situ production of a two-dimensional molybdenum disulfide/graphene hybrid nanosheet anode for lithium-ion batteries

Srikanth Mateti; Md Mokhlesur Rahman; Pavel Cizek; Ying Chen

doi:10.1039/d0ra01503b

In situ production of a two-dimensional molybdenum disulfide/graphene hybrid nanosheet anode for lithium-ion batteries

RSC Adv. 2020 Apr 14;10(22):12754-12758. doi: 10.1039/d0ra01503b. eCollection 2020 Mar 30.

Authors

Srikanth Mateti¹, Md Mokhlesur Rahman¹, Pavel Cizek¹, Ying Chen¹

Affiliation

¹ Institute for Frontier Materials, Geelong Campus, Deakin University Waurn Ponds 3216 Victoria Australia m.rahman@deakin.edu.au ian.chen@deakin.edu.au.

Abstract

A solvent-free, low-cost, high-yield and scalable single-step ball milling process is developed to construct 2D MoS₂/graphene hybrid electrodes for lithium-ion batteries. Electron microscopy investigation reveals that the obtained hybrid electrodes consist of numerous nanosheets of MoS₂ and graphene which are randomly distributed. The MoS₂/graphene hybrid anodes exhibit excellent cycling stability with high reversible capacities (442 mA h g^-1 for MoS₂/graphene (40 h); 553 mA h g^-1 for MoS₂/graphene (20 h); 342 mA h g^-1 for MoS₂/graphene (10 h)) at a high current rate of 250 mA g^-1 after 100 cycles, whereas the pristine MoS₂ electrode shows huge capacity fading with a retention of 37 mA h g^-1 at 250 mA g^-1 current after 100 cycles. The incorporation of graphene into MoS₂ has an extraordinary effect on its electrochemical performance. This work emphasises the importance of the construction of the 2D MoS₂/graphene hybrid structure to prevent capacity fading issues with the MoS₂ anode in lithium-ion batteries.