Abstract The flexible solid electrolytes are important for flexible batteries and supercapacitors. For that reason, we fabricated ZnO doped PVA-Borax based solid-gel electrolytes for 5%, 10% and 15% ZnO amounts in this study by chemical composition. The obtained ZnO doped PVA-Borax electrolytes were characterized by cyclic voltammetry (CV) measurements for 100, 200 and 400 mV scanning speeds and Raman spectroscopy. Furthermore, the two-electrode method was employed to determine the capacitance within the range of 0–1 V by 400 mV per second constant scan speed and then capacitance values of samples were calculated. Raman spectroscopy of the samples confirmed the ZnO doping in the PVA-Borax matrix. The obtained CV results revealed that the electrolytes exhibited rectangular shape due to its supercapacitor behavior. Also, the ZnO doping positively affected the supercapacitor behaviors. The results highlighted that the fabricated electrolytes can be improved for supercapacitor applications.

中文翻译：

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柔性ZnO掺杂PVA-硼砂基固体凝胶电解质的制备和电化学性能

摘要 柔性固体电解质是柔性电池和超级电容器的重要组成部分。出于这个原因，我们在本研究中按化学成分制造了 5%、10% 和 15% ZnO 量的 ZnO 掺杂的 PVA-硼砂基固体凝胶电解质。通过循环伏安法 (CV) 测量 100、200 和 400 mV 扫描速度和拉曼光谱对获得的掺杂 ZnO 的 PVA-硼砂电解质进行表征。此外，采用双电极法以每秒 400 mV 的恒定扫描速度确定 0-1 V 范围内的电容，然后计算样品的电容值。样品的拉曼光谱证实了 PVA-硼砂基质中的 ZnO 掺杂。获得的 CV 结果表明，电解质由于其超级电容器行为而呈现矩形形状。还，ZnO 掺杂对超级电容器行为产生积极影响。结果强调，可以改进制造的电解质以用于超级电容器应用。