高性能双网络水凝胶电解质的辐射合成及其柔性超级电容器性能研究

Gel electrolyte has a wide application prospect in the field of flexible electronic equipment. A novel double network hydrogel electrolyte with high mechanical strength and high ionic conductivity will be prepared by heating-cooling and radiation technology. The structure, mechanical properties and ionic conductivity of the synthetic double network hydrogel and its gel electrolyte will be studied systematically by changing the components, contents and irradiation conditions. The formation mechanism and energy dissipation mechanism of double network hydrogel is studied by means of IR, TGA, SEM and mechanical strength analysis. Then the performance of the flexible supercapacitor assembled with synthesized double network hydrogel electrolyte is investigated in the multiple cyclic compression, tensile, bending and torsion conditions. And the influence of geometry deformation on the performance of supercapacitor is elucidated. A novel method for preparing high performance hydrogel electrolyte to meet the application requirements of flexible supercapacitors is proposed in this project.

凝胶电解质在柔性电子设备等领域有着广阔的应用前景。本项目拟采用加热-冷却法和辐射技术相结合制备出高力学强度和高离子电导率的新型双网络水凝胶电解质。申请者将系统研究不同组成、含量及辐照条件等对合成双网络水凝胶及其凝胶电解质的结构、力学性能及离子电导率的影响，并结合IR、TGA、SEM、力学性能测试等表征手段研究双网络水凝胶的形成机理及其能量耗散机制。然后进一步研究合成双网络水凝胶电解质组装的柔性超级电容器在多次循环压缩、拉伸、弯折和扭转等条件下的性能变化，并解析几何形变对柔性超级电容器性能的影响机制。预期通过优化合成条件建立一种制备满足柔性超级电容器应用要求的高性能水凝胶电解质的新方法。

凝胶电解质在柔性电子设备等领域有着广阔的应用前景。本项目系统研究了一系列新型凝胶电解质的辐射合成方法, 并结合红外光谱、热分析、扫描电镜、力学性能测试等表征手段解析了凝胶电解质的网络结构及其形成机理，成功制备了琼脂糖/聚丙烯酰胺、明胶/聚丙烯酰胺及海藻酸盐/聚丙烯酰胺等双网络凝胶电解质及MXene、氧化石墨烯、倍半硅氧烷、共架有机框架材料增强的凝胶电解质，并探索了它们在柔性超级电容器、应变传感器、锌离子电池及锂金属电池等方面的应用。本项目的完成建立了高性能凝胶电解质材料制备的新方法，拓展了辐射技术的应用领域。