MoO2 -MoS2@PANI composite material is used as the anode material for lithium-ion batteries

Abstract

Abstract The hetero structured arrangement of metal sulfide/oxide is of paramount importance in dictating the electrochemical characteristics of anode materials for lithium-ion batteries (LIBs). In this investigation, a synthesized composite material, integrating molybdenum disulfide (MoS2) and molybdenum dioxide (MoO2) intercalated within polyaniline (PANI) under hydrothermal conditions, was employed. Within the granulated MoO2-MoS2@PANI composite, PANI acts as an efficacious matrix, effectively mitigating the re-agglomeration and pulverization of MoS2-MoO2 during prolonged cycling processes. Concomitantly, the cooperative effects among the MoS2, MoO2, and PANI constituents manifest in copious active sites and shortened ion transport pathways. As an anode material for LIBs, the MoO2-MoS2@PANI sample exhibits exemplary cycling performance, delivering a remarkable capacity of 860 mAh g−1 even after enduring 500 cycles at a rate of 0.1 A g−1. Furthermore, when scrutinized in a sodium-ion battery (LIB) at a rate of 2 A g−1, it demonstrates exceptional cycling performance, retaining a capacity of 490 mAh g−1 even after 1000 cycles.