An essential way to enhance the energy density of a supercapacitor(SC) is to use high capacitance electrode materials via developing binder-free electrode with porous and hierarchical nanostructures. Herein, we demonstrated the use of copper antimony sulfide (Cu₃SbS₄) nanowires directly grown on Ni foam (using a microwave-irradiation process) as a binder-free positive electrode for SCs. The growth mechanism, effect of microwave irradiation time on the morphology and electrochemical properties of Cu₃SbS₄ on Ni foam were discussed in detail. The cyclic voltammetric studies (using three-electrode test) of Cu₃SbS₄/Ni-5 electrode showed the presence of Type-C battery-like charge-storage properties. The Cu₃SbS₄/Ni-5 electrode delivered a high specific capacity (835.24 mA h g⁻¹) as obtained from the charge-discharge analysis (at a current density of 2.5 mA cm⁻²). Further, the device specific properties of the Cu₃SbS₄/Ni-5 positive electrode was examined via fabricating asymmetric supercapacitors (ASCs) using two different negative electrodes viz. (i) planar-graphene, and (ii) binder-free copper molybdenum sulfide anchored on Ni foam (Cu₂MoS₄/Ni) electrodes, respectively. The electrochemical analyses of the fabricated ASCs revealed that the Cu₃SbS₄/Ni-5║Cu₂MoS₄/Ni ASC possess almost 3.0-fold higher energy density compared to the Cu₃SbS₄/Ni-5║graphene ASC. The Cu₃SbS₄/Ni-5║Cu₂MoS₄/Ni ASC delivered a high specific device capacitance of 213.6 F g⁻¹ with a remarkable energy density (58.15 Wh kg⁻¹), maximum power density (6363.63 W kg⁻¹), and better cycle-life. The use of two different binder-free electrodes in the Cu₃SbS₄/Ni-5║Cu₂MoS₄/Ni ASC results in their superior performance metrics over the reported ASCs, thus, highlighting their potential applications towards next-generation supercapacitors.

增强超级电容器（SC）能量密度的一种基本方法是通过开发具有多孔和分层纳米结构的无粘合剂电极来使用高电容电极材料。在这里，我们展示了直接在镍泡沫上生长的硫化铜锑（Cu ₃ SbS ₄）纳米线（使用微波辐照工艺）作为无粘合剂正极的SC的用途。详细讨论了镍泡沫上Cu ₃ SbS ₄的生长机理，微波辐照时间对形貌和电化学性能的影响。Cu ₃ SbS ₄的循环伏安研究（使用三电极测试）/ Ni-5电极显示出C型电池状电荷存储特性的存在。Cu ₃ SbS ₄ / Ni-5电极传递高的比容量（835.24mA hg ^-1），如通过充放电分析所获得的（在2.5mA cm ^-2的电流密度下）。此外，通过使用两个不同的负极制造不对称超级电容器（ASC）来检查Cu ₃ SbS ₄ / Ni-5正极的器件特定性能。（i）平面石墨烯，和（ii）分别锚固在Ni泡沫（Cu ₂ MoS ₄ / Ni）电极上的无粘合剂的铜钼硫化物。制成的ASC的电化学分析表明，铜_3周的SbS ₄ /镍5║Cu _2层的MoS ₄ /镍ASC相比具有与Cu几乎3.0倍高的能量密度₃的SbS ₄ /镍5║grapheneASC。在Cu ₃的SbS ₄ /镍5║Cu _2层的MoS ₄ /镍ASC递送213.6 F G高比器件电容^-1具有显着能量密度（瓦58.15千克^-1），最大功率密度（6363.63W¯¯公斤^{- 1}），并具有更好的循环寿命。于Cu中使用两种不同的无粘接剂的电极的₃的SbS ₄ /镍5║Cu _2层的MoS ₄/ Ni ASC的性能指标优于报告的ASC，因此，突出了其在下一代超级电容器中的潜在应用。