Despite possessing a high theoretical capacity, MnS has a rather complex lithium kinetic diffusion and poor mechanical stability that hinders its application in energy storage devices like lithium-ion batteries. This study is focused on overcoming the drawbacks of MnS anode material by assembling a carbon-constraint MnS nanocomposite in a core-shell configuration. This structure is obtained by a simple route involving DC plasma evaporation of [email protected] nanoparticles and posterior thermal sulfurization process. As anode material in a Li-ion battery, [email protected] attains high specific capacity of 890 mAh g⁻¹ after 500 cycles at 500 mA g⁻¹. It also shows remarkable high rate capability with capacity values of 705, 684, 643, 578, and 495 mAh g⁻¹ at current densities of 100, 200, 500, 1000, and 2000 mA g⁻¹, respectively. This exceptional electrochemical response is endorsed to the synergetic effect of the smart design of a core-shell architecture. The carbonaceous shell enhances the lithium-ion diffusion towards the active MnS core and preserves structural stability during the long cycling process.

尽管具有很高的理论容量，但是MnS具有相当复杂的锂动力学扩散和较差的机械稳定性，从而阻碍了它在锂离子电池等储能设备中的应用。这项研究的重点是通过以核壳结构组装碳约束的MnS纳米复合材料来克服MnS阳极材料的缺点。这种结构是通过一种简单的途径获得的，该途径涉及[等离子保护的]纳米粒子的DC等离子体蒸发和后热硫化过程。作为锂离子电池的负极材料，[电子邮件保护]在500 mA g ^-1下经过500次循环后具有890 mAh g ^-1的高比容量。它还显示出非凡的高倍率能力，容量值为705、684、643、578和495 mAh g ^-1在分别为100、200、500、1000和2000 mA g ^-1的电流密度下。这种出色的电化学响应被认可为核-壳结构智能设计的协同效应。碳质壳增强了锂离子向活性MnS核的扩散，并在长时间循环过程中保留了结构稳定性。