Selecting suitable active materials with unique design microstructures can deliver a new generation of supercapacitors with high energy-storage performance. In this work, Zn_0.76Co_0.24S microspheres containing nanoflakes on its surface were successfully synthesized using a simple one-step hydrothermal method, achieving an excellent electrochemical energy storage behavior owing to its good conductivity, and unique structure that allowed effective transportation paths for ions/electrons. The as-prepared Zn_0.76Co_0.24S was used as an electrode material for supercapacitors, and it displayed an excellent capacitance of 2393 F g⁻¹ (796 C g⁻¹) at 1 A g⁻¹. For a real application, a hybrid device was assembled using Zn_0.76Co_0.24S as a positive electrode and activated carbon as a negative electrode. This led to delivering high specific energy of 58.8 Wh kg⁻¹ at a specific power of 815 W kg⁻¹, showing excellent cycling stability of 90% capacity retention of the initial capacity after 5000 cycles.

选择具有独特设计微结构的合适活性材料可以提供具有高储能性能的新一代超级电容器。在这项工作中，使用简单的一步水热法成功地合成了表面上含有纳米薄片的Zn _0.76 Co _0.24 S微球，由于其良好的电导率和独特的结构（允许有效的离子传输路径）而获得了优异的电化学储能性能/电子。所制备的Zn _0.76 Co _0.24 S被用作超级电容器的电极材料，并且在1 A g ^-1下显示出2393 F g ^-1（796 C g ^-1）的优异电容。。对于实际应用，使用Zn _0.76 Co _0.24 S作为正极和活性炭作为负极组装了混合设备。这导致在815 W kg ^-1的比功率下提供58.8 Wh kg ^-1的高比能，显示出极好的循环稳定性，在5000次循环后仍保持了初始容量的90％的容量。