Here, an effective approach to obtain controllable thin carbon layer encapsulated MoS₂ nanospheres on the surface of interwoven carbon nanotubes to form interconnected network structure of C-MoS₂/CNTs composites is presented by a facile hydrothermal method. The remarkable electrochemical performance of the resulting composites as anode electrode materials are achieved for Na-ion energy storage systems, such as excellent capacity (~468 mA h g⁻¹ at 1.0 A g⁻¹), high rate capability (capacity retention of ~72.8% from 0.1 A g⁻¹ to 5.0 A g⁻¹) and long cycling stability (100.0% capacity remaining after 1000 cycles). Systematic characterizations reveal that the outstanding performance is mainly attributed to the unique and robust composite architecture, such as, improvement the conductivity of the whole electrode material, preventing the aggregation of C-MoS₂ during cycles, large atomic interface contact for Na⁺ storage, and providing a dense porous space to alleviate volume expansion during cycling.

在此，提出了一种通过简便的水热法在交织的碳纳米管表面上获得可控的薄碳层封装的MoS ₂纳米球以形成C-MoS ₂ / CNTs复合材料相互连接的网络结构的有效方法。所得到的复合物作为阳极的电极材料的显着的电化学性能的Na离子的能量存储系统，例如优异的容量（〜468毫安ħ克实现^-1 1.0 A G ^-1），高倍率性能（〜72.8的容量保持％从0.1 A g ^-1到5.0 A g ^-1）和长循环稳定性（1000次循环后仍可保留100.0％的容量）。系统表征表明，出色的性能主要归因于独特且坚固的复合结构，例如，提高了整个电极材料的电导率，防止了循环过程中C-MoS ₂的聚集，Na ⁺储存的大原子界面接触，并且提供致密的多孔空间以减轻循环过程中的体积膨胀。