Porous polyaniline (PANI) was prepared through an efficient and cost-effective method by polymerization of aniline in the NaCl solution at room temperature. The resulting PANI provided large surface area due to its highly porous structure and the intercrossed nanorod, resulting in good electrochemical performance. The porous PANI electrodes showed a high specific capacitance of 480 F·g⁻¹, 3 times greater than that of PANI without using the NaCl solution. We also make chemically crosslinked hydrogel film for hydrogel polymer electrolyte as well as the flexible supercapacitors (SCs) with PANI. The specific capacitance of the device was 234 F·g⁻¹ at the current density of 1 A·g⁻¹. The energy density of the device could reach as high as 75 W·h·kg⁻¹ while the power density was 0.5 kW·kg⁻¹, indicating that PANI be a promising material in flexible SCs.

多孔聚苯胺（PANI）是通过在室温下在NaCl溶液中使苯胺聚合而通过一种高效且具有成本效益的方法制备的。由于其高度多孔的结构和交叉的纳米棒，所得的PANI提供了较大的表面积，从而具有良好的电化学性能。多孔PANI电极显示出480 F·g ^-1的高比电容，是不使用NaCl溶液的PANI的3倍。我们还生产用于水凝胶聚合物电解质的化学交联水凝胶膜以及具有PANI的柔性超级电容器（SC）。该装置的比电容是234·F·^克-1 1 ^A·G的电流密度^-1。设备的能量密度可以达到75 W·h·kg ^-1功率密度为0.5 kW·kg ^-1，表明PANI是柔性SCs中很有前途的材料。