A novel hierarchical nanotube array (NTA) with a massive layered top and discretely separated nanotubes in a core–shell structure, that is, nickel–cobalt metallic core and nickel–cobalt layered double hydroxide shell (NiCo@NiCo LDH), is grown on carbon fiber cloth (CFC) by template‐assisted electrodeposition for high‐performance supercapacitor application. The synthesized NiCo@NiCo LDH NTAs/CFC shows high capacitance of 2200 F g⁻¹ at a current density of 5 A g⁻¹, while 98.8% of its initial capacitance is retained after 5000 cycles. When the current density is increased from 1 to 20 A g⁻¹, the capacitance loss is less than 20%, demonstrating excellent rate capability. A highly flexible all‐solid‐state battery‐type supercapacitor is successfully fabricated with NiCo LDH NTAs/CFC as the positive electrode and electrospun carbon fibers/CFC as the negative electrode, showing a maximum specific capacitance of 319 F g⁻¹, a high energy density of 100 W h kg⁻¹ at 1.5 kW kg⁻¹, and good cycling stability (98.6% after 3000 cycles). These fascinating electrochemical properties are resulted from the novel structure of electrode materials and synergistic contributions from the two electrodes, showing great potential for energy storage applications.

中文翻译：

---

分层Ni ？的设计。Co @ Ni ？Co层状双氢氧化物核壳结构纳米管阵列，用于高性能柔性全固态电池型超级电容器

一种新颖的分层纳米管阵列（NTA），其在核-壳结构中具有大量分层的顶部纳米管和离散分离的纳米管，即镍-钴金属核和镍-钴层状双氢氧化物壳（NiCo @ NiCo LDH）通过模板辅助电沉积在碳纤维布（CFC）上生长，用于高性能超级电容器应用。合成镍钴@镍钴LDH NTAS / CFC节目2200 F G高电容^-1以5 g的电流密度^-1，而它的初始电容的98.8％的5000次循环后保留。当电流密度从1增加到20 A g ^-1时，电容损耗小于20％，证明了极好的速率能力。高度柔性的全固态电池型超电容器被成功地用Ni制成钴LDH NTAS / CFC作为正极和电的碳纤维/ CFC作为负极，示出的319 F G的最大比电容^-1，在1.5 kW kg ^-1时具有100 W h kg ^-1的高能量密度，并具有良好的循环稳定性（3000次循环后为98.6％）。这些引人入胜的电化学特性是由于电极材料的新颖结构以及两个电极的协同作用而产生的，显示了在储能应用中的巨大潜力。