针对柔性纤维超级电容器能量密度低及柔性和比容量优化平衡矛盾的瓶颈问题，项目拟以大尺寸孔洞石墨烯纳米层与碳纳米管优化材料柔性和导电性，以孔洞二氧化锰纳米层（线）优化材料比电容，采用对向滴铸组装技术制备具有离子快速传输通道，纵横比可控的石墨烯/二氧化锰/碳纳米管柔性复合纤维电极材料；通过研究组装纳米层（线）孔洞化率、纳米层大小、组分含量、组装速率及缠绕方法与电化学电容关系，阐明组装材料结构改善柔性复合纤维比电容的规律；通过对组装材料及器件电化学阻抗谱等测定，研究组装材料离子传输与材料比能量的变化规律；以制备的纤维电极组装对称及不对称柔性全固态纤维超级电容器，研究电极及器件弯曲程度、抗拉伸量及折叠程度等柔性参数下的比容量，为优化平衡材料与器件柔性和电性能提供依据，达到克服实心纤维电极比容量低、反应动力学迟缓和库仑效率低等突出问题，开发高能量密度下倍率性能优异的柔性纤维超级电容器。

For the flexible fiber-based supercapacitors, the challenges existing are how to achieve high energy density without compromising their rate stability and how to balance optimization between flexibility and specific capacitance. In this project, the holey graphene nanosheets with large size and carbon nanotubes are selected to optimize the flexibility and conductivity of the assembled materials, the holey MnO2 nanosheets (or nanowires) are selected to optimize the specific capacitance, and the graphene/manganese dioxide/carbon nanotube flexible composite fiber electrodes with both ion-fast transfer channel and controllable aspect ratio are expected to be prepared by counter-drop-casting technology. By investigating the holey ratio of nanosheets (or nanowires), the size of nanosheets, the component content, the assembled rate, and the entanglement method, the regularity between porous structure and the specific capacitance of the assembled fiber-based electrodes will be clarified. By testing the electrochemical parameters of the assembled materials and device such as electrochemical impedance spectroscopy, the variation of the ion transport and the specific capacitance is studied. By using the prepared fiber-based electrodes with good flexible and excellent capacitance, the symmetrical and asymmetric flexible solid-state fiber supercapacitors are assembled. By investigating the bending degree, tensile strength and folding degree of the prepared electrodes and device, the relationship between the flexibility and specific capacity is investigated, which can provide the basis for optimizing the flexibility and electrical performance of the assembled fiber-based electrodes and the device. The research is expected to overcome the outstanding problems such as the low specific capacity, the slow reaction dynamics and the low coulomb efficiency of the solid fiber electrode, and the flexible fiber supercapacitor with high energy density is expected to be developed.