A flexible asymmetric supercapacitor (ASC) based on a CoAl-layered double hydroxide (CoAl-LDH) electrode and a reduced graphene oxide (rGO) electrode was successfully fabricated. The CoAl-LDH electrode as a positive electrode was synthesized by directly growing CoAl-LDH nanosheet arrays on a carbon cloth (CC) through a facile hydrothermal method, and it delivered a specific capacitance of 616.9 F g⁻¹ at a current density of 1 A g⁻¹. The rGO electrode as a negative electrode was synthesized by coating rGO on the CC via a simple dip-coating method and revealed a specific capacitance of 110.0 F g⁻¹ at a current density of 2 A g⁻¹. Ultimately, the advanced ASC offered a broad voltage window (1.7 V) and exhibited a high superficial capacitance of 1.77 F cm⁻² at 2 mA cm⁻² and a high energy density of 0.71 mWh cm⁻² at a power density of 17.05 mW cm⁻², along with an excellent cycle stability (92.9% capacitance retention over 8000 charge–discharge cycles).

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成功地制造了基于CoAl层状双氢氧化物（CoAl-LDH）电极和氧化石墨烯（rGO）电极的柔性不对称超级电容器（ASC）。通过简便的水热法在碳布（CC）上直接生长CoAl-LDH纳米片阵列，合成了作为正极的CoAl-LDH电极，并在电流密度为1的情况下提供了616.9 F g ^-1的比电容。A g ^-1。通过使用简单的浸涂法在CC上涂覆rGO来合成作为负极的rGO电极，并在2 A g ^-1的电流密度下显示出110.0 F g ^-1的比电容。。最终，先进的ASC提供了宽电压范围（1.7 V），并在2 mA cm ^-2下表现出1.77 F cm ^-2的高表面电容，在17.05 mW的功率密度下表现出0.71 mWh cm ^-2的高能量密度。cm ^-2，以及出色的循环稳定性（8000个充放电循环中92.9％的电容保持率）。

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