The functionalization of structural nanoengineered battery-type electrodes has aided the emergence of supercapattery (SCp) subclass, which enables a wide range of applications. Herein, our research work provides a platform for two-step fabrication of nanoengineered 3D-on-2D structure as a promising approach to obtain high-performance battery-type electrodes. The hierarchical 2D NiCo bimetallic LDH NC(12)40 electrode was fabricated using electrodeposition, while the nanoengineered 3D ZIF-67 on 2D LDH electrode was achieved via pseudomorphic replication techniques. The fabricated 3D-on-2D NC(12)40-30 electrode reveals a maximum areal capacity of 1044 mC cm⁻² at a current density of 4 mA cm⁻² in 6 M KOH electrolyte. Furthermore, NC(12)40-30//AC was integrated as a SCp device, achieving a maximum specific capacitance of 63 F/g and maximum specific energy and power of 20.5 W/h/kg and 8522.7 W/kg, respectively, with improved capacitance retention (85%) even after 10,000 cycles. Thus, the assembled SCp coin cell displays 18-LED illumination in four different commercial LED colors, indicating the viability of the battery-type electrode for SCp development.

结构纳米工程电池型电极的功能化有助于超级电池 (SCp) 子类的出现，从而实现广泛的应用。在此，我们的研究工作为纳米工程3D-on-2D结构的两步制造提供了一个平台，作为获得高性能电池型电极的有前途的方法。分层二维 NiCo 双金属 LDH NC(12)40 电极是使用电沉积制备的，而二维 LDH 电极上的纳米工程 3D ZIF-67 是通过假晶复制技术实现的。制造的3D-on-2D NC(12)40-30 电极在 4 mA cm ^-2的电流密度下显示出 1044 mC cm ^-2的最大面积容量在 6 M KOH 电解液中。此外，NC(12)40-30//AC 被集成为 SCp 器件，实现了 63 F/g 的最大比电容和 20.5 W/h/kg 和 8522.7 W/kg 的最大比能量和功率，即使在 10,000 次循环后仍具有改进的电容保持率 (85%)。因此，组装好的 SCp 纽扣电池以四种不同的商用 LED 颜色显示 18-LED 照明，表明用于 SCp 开发的电池型电极的可行性。