In this paper, a porous ZnCo₂O₄ nanosheet arrays (NAs)/carbon cloth (CC) binder-free anode for the flexible energy storage devices application was constructed by the hydrothermal method and subsequent annealing treatment. This anode electrode material shows multistage pore distribution that can provide numerous ways for the transport of ions and electrons. As a supercapacitor electrode, the flexible ZnCo₂O₄/CC electrode indicates a high specific capacitance (1790 F/g at the current density of 1 A/g), good rate performance, and excellent cycle properties (99.4% capacitance retention after 10,000 cycles). Besides, the flexible electrode also displays good mechanical flexibility. A solid-state asymmetric flexible supercapacitor device was assembled with the ZnCo₂O₄/CC electrode as the positive electrode and the carbon nanotube (CNTs)/CC as the negative electrode. This asymmetric device delivers high energy density of 47.1 Wh/kg (power density 800 W/kg) and power density of 12,000 W/kg (energy density 28.3 Wh/kg) with the potential window 0–1.6 V. These results indicate that the ZnCo₂O₄/CC flexible electrode with high electrochemical performance adjusts for environment-friendly and low-cost energy storage devices in the future.

在本文中，通过水热法和随后的退火处理构建了用于柔性储能设备应用的多孔ZnCo ₂ O ₄纳米片阵列（NAs ）/碳布（CC）无粘合剂阳极。这种阳极电极材料显示出多级孔分布，可为离子和电子的传输提供多种途径。作为超级电容器电极，柔性 ZnCo ₂ O ₄/CC 电极具有高比电容（在 1 A/g 的电流密度下为 1790 F/g）、良好的倍率性能和优异的循环性能（10,000 次循环后电容保持率为 99.4%）。此外，柔性电极还表现出良好的机械柔韧性。以ZnCo ₂ O ₄ /CC电极为正极，碳纳米管（CNTs）/CC为负极，组装了固态非对称柔性超级电容器装置。这种非对称器件在电位窗口 0-1.6 V 的情况下提供 47.1 Wh/kg（功率密度 800 W/kg）和 12,000 W/kg（能量密度 28.3 Wh/kg）的高能量密度。这些结果表明ZnCo ₂ O ₄/CC 具有高电化学性能的柔性电极适用于未来环保、低成本的储能装置。