A Novel MoS2-MXene Composite Cathode for Aluminum-Ion Batteries

Metal dichalcogenide cathodes can be used to increase the capacities of rechargeable aluminum-ion batteries. However, the higher charge density of trivalent metal cations (Al3+) and the inherently strong polarization effect on the host lattice result in poor MoS2 cycling performance. Thus, we designed MoS2-MXene composites as a novel cathode to improve the performance of rechargeable aluminum-ion batteries. The results of this study show that Ti3C2Tx MXene can provide a conductive framework with exceptional mechanical integrity for MoS2. The electrochemical performance of MoS2 can be significantly improved by compounding with Ti3C2Tx MXene.

Automated summary

Metal dichalcogenide cathodes can be utilized to enhance the capacities of rechargeable aluminum-ion batteries, but poor cycling performance can result due to the higher charge density of trivalent metal cations. The introduction of MoS2-MXene composites, with Ti3C2Tx MXene providing a conductive framework for MoS2, significantly improves the electrochemical performance of MoS2 in this study.