ABSTRACT Advancing lithium‐ion batteries (LIBs) technology face a major bottleneck in the limited performance of existing anode materials, necessitating the creation of novel alternatives. Among various candidates, double‐transition‐metal MXenes, particularly Mo 2 Ti 2 C 3 T x , have shown exceptional promise. These attributes primarily stem from their unique in‐plane ordered structure, rich metal composition, and the resulting combination of enhanced conductivity and structural tunability. In this work, the MoS 2 /Mo 2 Ti 2 C 3 T x heterostructure was constructed by directly growing MoS 2 nanosheets onto Mo 2 Ti 2 C 3 T x MXene nanosheets via a facile hydrothermal route. The resulting Mo 2 Ti 2 C 3 T x @MoS 2 hybrid exhibits superior lithium storage properties, achieving a high specific capacity of 325.47 mAh g −1 at 10 A g −1 alongside superior rate performance. Even when subjected to 3000 cycles at a high current density of 5 A g −1 , the electrode could still deliver a reversible capacity of 500 mAh g −1 , highlighting its outstanding long‐term stability. Such enhanced electrochemical behavior can be ascribed to the synergistic coupling between the highly conductive MXene framework and the high‐capacity MoS 2 , which collaboratively facilitates efficient charge transport and reinforces the electrode's structural robustness. Such a synergistic mechanism provides a practical route to engineer high‐capacity anodes for next‐generation LIBs.
Fan et al. (Sun,) studied this question.
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