The poor stability of zinc anodes caused by uneven deposition/stripping of zinc has inevitably limited the practical application of zinc-based aqueous batteries (ZABs). And the self-healing property is very necessary for improved lifespan and reliability of the flexible batteries under various deformations during their daily usage. In this work, a new self-healable hydrogel electrolyte (SHE) with rigid-flexible backbones is synthesized by cross-linking polymerization and composite strengthening. Owing to porous crosslinking network and more hydrophilic groups, the SHE possesses high ionic conductivity (23.1 mS/cm at 25 °C) and excellent mechanical strength, and the hydrophilic groups are conductive to improve interfacial compatibility between electrode and electrolyte, prompting much more disciplined Zn metal plating/stripping. And the dynamic hydrogen bonds derived from the hydroxyl groups of the polymer backbone can prompt self-healing and stretchable property of SHEs. As a result, the assembled flexible zinc-manganese dioxide batteries delivered a high capacity of 304 mAh g⁻¹ at 0.5 A g⁻¹ and good cycling stability with a capacity retention of 83.1% (vs. 62.5% with polyacrylamide) after 1500 charge/discharge cycles at 5.0 A g⁻¹. Furthermore, the flexible batteries with SHEs can recover electrochemical performance with over 95% healing efficiency after 5 cycles of complete breaking/healing.

锌的不均匀沉积/剥离导致锌负极稳定性差，不可避免地限制了锌基水系电池（ZABs）的实际应用。而自愈性能对于提高柔性电池在日常使用过程中在各种变形下的寿命和可靠性是非常必要的。在这项工作中，通过交联聚合和复合强化合成了一种具有刚柔骨架的新型自修复水凝胶电解质（SHE）。由于多孔交联网络和更多的亲水基团，SHE 具有高离子电导率（25°C 时为 23.1 mS/cm）和优异的机械强度，亲水基团具有导电性，可改善电极和电解质之间的界面相容性，促使更加规范化锌金属电镀/剥离。源自聚合物骨架羟基的动态氢键可以促进SHEs的自修复和拉伸性能。结果，组装的柔性锌-二氧化锰电池提供了304 mAh g的高容量^-1 在 0.5 A g ^-1和良好的循环稳定性，在 5.0 A g ^{-1 的}1500 次充电/放电循环后容量保持率为 83.1%（聚丙烯酰胺为 62.5%）。此外，具有 SHE 的柔性电池可以在 5 次完全断裂/愈合循环后以超过 95% 的愈合效率恢复电化学性能。