Transition metal sulfides are gaining attention as a new highly capacitive active material for high-performance supercapacitors, however, it is still a challenge that synthesizes a distinctive structure to enhance the electrochemical characteristics and practical applications. In this work, hierarchical structural hybrid metal sulfides (NiCo₂S₄/Co₄S₃) based on nanosheets and nanocages are synthesized by sulfurating the NiCo-LDH/ZIF-67 precursors. The NiCo₂S₄/Co₄S₃ electrode with remarkable layered and porous structure effectively increase the electrochemical active surface area and accelerate the charge transfer, achieving a high specific capacitance of 8.43 F cm⁻² at a current density of 2 mA cm⁻² and good cyclic stability. An assembled asymmetric supercapacitor with activated carbon delivers a high energy density of 0.50 mWh cm⁻² at a power density of 1.69 mW cm⁻². These results demonstrate that NiCo₂S₄/Co₄S₃ is an ideal electrode material for high-performance electrochemical energy storage devices.

过渡金属硫化物作为一种用于高性能超级电容器的新型高电容活性材料正受到关注，然而，合成独特的结构以增强电化学特性和实际应用仍然是一个挑战。在这项工作中，通过硫化 NiCo-LDH/ZIF-67 前体合成了基于纳米片和纳米笼的分级结构杂化金属硫化物 (NiCo ₂ S ₄ /Co ₄ S _{3 )。}NiCo ₂ S ₄ /Co ₄ S ₃^{具有显着层状和多孔结构的电极有效地增加了电化学活性表面积并加速了电荷转移，在2 mA cm -2}的电流密度下实现了8.43 F cm ^-2的高比电容和良好的循环稳定性。具有活性炭的组装不对称超级电容器可在 1.69 mW cm ^-2的功率密度下提供 0.50 mWh cm ^-2的高能量密度。这些结果表明NiCo ₂ S ₄ /Co ₄ S ₃是用于高性能电化学储能装置的理想电极材料。