A flexible and robust electrode is demonstrated by assembling the 3D ordered macroporous MoS @C nanostructure on carbon cloth with ultrasmall few-layered MoS nanosheets homogenously embedded into the interconnected carbon wall. Such unique nanostructures are favorable for enhancing lithium storage capacity, directly applied as a flexible electrode, demonstrating a very high electrochemical performance and superior cycling stability for lithium-ion batteries.

The reciprocal hybridization of MoO2 nanoparticles and few-layer MoS2 has been realized via a facile hydrothermal reaction. The resulting MoO2/MoS2 hybrids exhibit a high reversible specific capacity of 1103 mA h g(-1) at 0.2 A g(-1) with a high rate performance (273 mA h g(-1) at 6.4 A g(-1)) and an excellent cycling stability (∼92% capacity retention after 800 cycles) mainly due to the strong synergistic effect between them.

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The preparation of few-layered ultrasmall MoS2 nanosheets inlayed into carbon frameworks is challenging to date. Herein, we realize the synthesis of such meaningful nanohybrids (labeled as MoS2/CFs hybrids) by a simple salt-templating protocol, where NaCl particles are chosen as a sacrificial template to grow MoS2 crystals on the surface during the glucose carbonization, which meanwhile effectively inhibits their growth and stacking. In regard to electrochemical energy storage and conversion, the resulting MoS2/CFs hybrids are beneficial for providing substantial and accessible electroactive sites as well as rapid electrons/ions transfer. The present hybrids, when applied as lithium-ion batteries anode materials, exhibit a remarkably enhanced reversible specific capacity as high as 1083.5 mAh g–1 at 200 mA g–1 with fast charge/discharge capability (465.4 mAh g–1 at 6400 mA g–1), which is much higher than the exfoliated MoS2 nanosheets (only 97.6 mAh g–1 at 6400 mA g–1) and the commercial graphite. More impressively, our MoS2/CFs hybrids simultaneously possess a superior cycle life with negligible capacity loss after 400 cycles at 1600 mA g–1. In addition to the excellent lithium ion storage, our MoS2/CFs hybrids may concurrently exhibit some intriguing properties for applications in other energy-related fields.

2D metal chalcogenides have become a popular focus in the energy storage field because of their unique properties caused by their single-atom thicknesses. However, their high surface energy and van der Waals attraction easily cause serious stacking and restacking, leading to the generation of more inaccessible active sites with rapid capacity fading. The hybridization of 2D metal chalcogenides with highly conductive materials, particularly, incorporating ultrasmall and few-layered metal chalcogenides into carbon frameworks, can not only maximize the exposure of active sites but also effectively avoid their stacking and aggregation during the electrochemical reaction process. Therefore, a satisfactory specific capacity will be achieved with a long cycle life. In this Concept, the representative progress on such intriguing nanohybrids and their applications in energy storage devices are mainly summarized. Finally, an outlook of the future development and challenges of such nanohybrids for achieving an excellent energy storage capability is also provided.