The demand for developing sustainable energy storage renders biomass-based electrode materials a timely and important goal. However, the desirable electrochemical performance of the supercapacitor has still been hindered by insufficient contact chance between the active material and the electrolyte when both energy density and power density are required. Herein, the porous bamboo carbons were managed and used as the cathode to construct a flexible and high-performance Zn-ion hybrid supercapacitor (ZHSC) by combining the merit of capacitor-type and battery-type electrode materials. The porous material with high porosity is obtained via a controllable structural optimization. Consequently, the as-constructed hybrid supercapacitor delivers a superior specific capacitance of 321.3F g⁻¹ at 1 A g⁻¹ together with a high energy density of 114.2 Wh kg⁻¹ when the power density is 800.0 W kg⁻¹. Meanwhile, the assembled flexible hybrid supercapacitor displays remarkable cycling stability with 78% capacitance retention after 20,000 cycles and enough to suffer various deformations with no noticeable degradation of capacitance. Finally, the potential practical value of the flexible hybrid supercapacitor is demonstrated by an eye-catching orbital diagram. This work reveals that the flexible supercapacitor mainly constructed by porous biomass carbon is a promising candidate for energy storage devices.

发展可持续能源存储的需求使基于生物质的电极材料成为及时而重要的目标。然而，当同时需要能量密度和功率密度时，活性材料和电解质之间的接触机会不足，仍然阻碍了超级电容器的理想电化学性能。在这里，多孔竹炭被管理并用作阴极，通过结合电容器型和电池型电极材料的优点，构建了灵活且高性能的锌离子混合超级电容器（ZHSC）。通过可控的结构优化获得具有高孔隙率的多孔材料。因此，构建的混合超级电容器在 1 A g ^{-1 时}提供了 321.3F g ^-1的优异比电容当功率密度为800.0 W kg ^-1时，具有114.2 Wh kg ^-1的高能量密度。同时，组装的柔性混合超级电容器显示出卓越的循环稳定性，在 20,000 次循环后电容保持率为 78%，并且足以承受各种变形，而电容没有明显下降。最后，通过引人注目的轨道图展示了柔性混合超级电容器的潜在实用价值。这项工作表明，主要由多孔生物质碳构成的柔性超级电容器是一种很有前途的储能装置候选者。