Flexible power supplies are urgently needed due to the rapid development of flexible wearable technology. Zinc-ion hybrid capacitors (ZIHCs), which combine the advantages of zinc-ion batteries with high energy density and supercapacitors with high power density, are new and extremely promising future energy storage devices. However, issues such as electrodes dissolution and corrosion, as well as performance degradation of electrolyte in a wide temperature range, can affect the application of ZIHCs. The creation of electrolytes with high adhesion, thermal stability and anti-freeze characteristics can be effective in achieving this objective. Herein, the sulfonic acid groups on 2-acrylamido-2-methylpropanesulfonic acid (AMPS) are utilized as the active sites to design polyanion-induced single zinc-ion gel polymer electrolytes (GPEs). The resulting GPEs of P(AM-AMPS-Zn)/Gelatin (PMPG) display excellent interfacial adhesion and high mechanical strength. Meanwhile, ion migration channels are provided by the ZnCl₂-filled PMPG to lessen adverse reactions and extend lifespan. With the combined advantages of PMPG GPE, the assembled ZIHC can provide a high energy density of 140 Wh kg⁻¹ at a high power density of 800 W kg⁻¹ and an excellent cycling durability with the capacity retention of 93.1% and 84.2% at -20 and 60 °C, respectively. More encouragingly, after 5000 charge and discharge cycles of the assembled flexible ZIHC, the electrodes show excellent compatibility with the GPE, suggesting excellent interface stability. Accordingly, this strategy provides new guidance and insights for exploring GPEs that assist ZIHCs in achieving wide temperature resistance and stable interface.

由于柔性可穿戴技术的快速发展，迫切需要柔性电源。锌离子混合电容器（ZIHC）结合了锌离子电池高能量密度和超级电容器高功率密度的优点，是未来极具前景的新型储能器件。然而，电极溶解和腐蚀以及电解液在较宽温度范围内性能下降等问题会影响ZIHC的应用。创造具有高附着力、热稳定性和防冻特性的电解质可以有效实现这一目标。在此，利用2-丙烯酰胺基-2-甲基丙磺酸（AMPS）上的磺酸基作为活性位点来设计聚阴离子诱导的单锌离子凝胶聚合物电解质（GPE）。所得的 P(AM-AMPS-Zn)/明胶 (PMPG) GPE 显示出优异的界面粘附力和高机械强度。_{同时，ZnCl 2}填充的PMPG提供离子迁移通道，以减少不良反应并延长使用寿命。结合PMPG GPE的优点，组装的ZIHC可以在800 W kg ^{-1的高功率密度下提供140 Wh kg -1的高能量密度}以及出色的循环耐久性，在-20°C和60°C下的容量保持率分别为93.1%和84.2%。更令人鼓舞的是，组装的柔性ZIHC经过5000次充放电循环后，电极表现出与GPE优异的相容性，表明优异的界面稳定性。因此，该策略为探索 GPE 提供了新的指导和见解，帮助 ZIHC 实现宽温耐受性和稳定的界面。