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Research on Inkjet Printing Three-Dimensional Electrode Structure of Supercapacitors

机译：超级电容器喷墨印刷三维电极结构研究

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Inkjet printing, as a flexible high-precision functional material deposition method, has been widely used in the preparation of supercapacitors. However, the inkjet printed electrode is usually a planar structure, which greatly reduces the applying performance of the prepared supercapacitor. In this research, the graphene oxide was composited with AgNO_3 and dispersed ultra-sonically in an aqueous solution to obtain an inkjet printing ink. By controlling the substrate temperature and the printing interval, layer-by-layer inkjet printing was performed on the substrate, and then three-dimensional electrode structures were prepared by vapor phase hydrazine reduction. Experiments show that when the substrate temperature is 55 °C and the printing interval is 60 s, a uniform three-dimensional electrode is printed. The conductivity of the three-dimensional electrode is measured as 2.9 × 10~5 S/m, and the specific capacitance is 89.6 F/g, the areal capacitance is 36 mF/cm~2. The prepared three-dimensional electrode in this research can be applied to supercapacitors, which will have great significance for improving the applying performance of supercapacitors.
机译：喷墨印刷作为一种灵活的高精度功能材料沉积方法，已广泛用于制备超级电容器。然而，喷墨印刷电极通常是平面结构，其大大降低了制备的超级电容器的施加性能。在该研究中，将石墨烯氧化物用AgNO_3与AgNO_3进行，并在水溶液中分散在水溶液中以获得喷墨印刷油墨。通过控制衬底温度和印刷间隔，在基板上进行逐层喷墨印刷，然后通过气相肼还原制备三维电极结构。实验表明，当基板温度为55℃并且打印间隔为60秒时，打印均匀的三维电极。三维电极的电导率测量为2.9×10〜5 s / m，特定电容为89.6 f / g，面积电容为36mF / cm〜2。该研究中制备的三维电极可应用于超级电容器，这对于改善超级电容器的施加性能具有重要意义。

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