It is imperative to develop ideal self-healing material with intrinsic mechanical strength and mild self-healing conditions. Here, a rapid self-healing poly(vinyl alcohol) (PVA)/chitosan (CS) composite gel with multiple hydrogen bonds is designed. PVA/CS gel shows a particularly high strength of 0.266 MPa and can heal rapidly after completely broken. The self-healing performance can be ascribed to multiple hydrogen bonds provided by the P=O/P-O···H groups of phytic acid. In particular, PVA/CS gel can be served as solid electrolyte. A flexible all-solid-state capacitor can be assembled based on the flexible polyaniline electrode and PVA/CS gel used as solid electrolyte. The capacitor exhibits a high specific capacitance of 390.6 mF/cm² and high capacitance retention ratio after hundreds of bends. Additionally, the PVA/CS gel can reconnect the broken capacitor with partial capacitance retention. This work can contribute to the design and fabrication of rapid self-healing gel and flexible all-solid-state capacitor.

必须开发出具有内在机械强度和适度自愈条件的理想自愈材料。在这里，设计了具有多个氢键的快速自愈聚乙烯醇（PVA）/壳聚糖（CS）复合凝胶。PVA / CS凝胶显示出0.266 MPa的特别高的强度，并且在完全断裂后可以迅速愈合。自我修复性能可归因于植酸的P = O / PO··H基团提供的多个氢键。特别地，PVA / CS凝胶可用作固体电解质。可以基于柔性聚苯胺电极和用作固体电解质的PVA / CS凝胶组装柔性全固态电容器。该电容器具有390.6 mF / cm ²的高比电容数百次弯折后的高电容保持率。此外，PVA / CS凝胶可以重新连接损坏的电容器，并保留部分电容。这项工作可有助于快速自愈凝胶和柔性全固态电容器的设计和制造。