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首页> 外文期刊>International Journal of Electrochemical Science >All-solid-state Flexible Supercapacitors Based on Screen-printed Graphene Electrodes
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All-solid-state Flexible Supercapacitors Based on Screen-printed Graphene Electrodes

机译：基于丝网印刷石墨烯电极的全固态柔性超级电容器

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Graphene ink was produced using graphene, polyvinylidene fluoride, and acetylene black with 1- methyl-2-pyrrolidinone in a ball mill and the thickness and viscosity of the ink were characterized. Afterwards, the conductive silver ink was screen printed and thermally cured onto a poly(ethylene terephthalate) substrate. In addition, the prepared graphene ink was screen-printed onto the conductive silver layer and dried to create a flexible supercapacitor electrode. A PVA-H2SO4 gel was coated onto the flexible electrode as electrolyte. Finally, a symmetric supercapacitor was successfully assembled and shows a specific capacitance of 190.6 F g-1 at 0.5 A g-1 and a maximum energy density of 16.94 W h kg-1. The three devices connected in series to light up a light-emitting diode. The printed flexible electrodes created using a simple process could play an important role in the energy storage field.
机译：在球磨机中使用石墨烯，聚偏二氟乙烯和乙炔黑与1-甲基-2-吡咯烷酮制备石墨烯油墨，并表征了油墨的厚度和粘度。之后，将导电银油墨丝网印刷并热固化到聚对苯二甲酸乙二酯基底上。另外，将制备的石墨烯油墨丝网印刷到导电银层上并干燥以产生柔性超级电容器电极。将PVA-H 2 SO 4凝胶作为电解质涂覆在柔性电极上。最终，成功组装了对称超级电容器，该对称超级电容器在0.5 A g-1时的比电容为190.6 F g-1，最大能量密度为16.94 W h kg-1。三个设备串联连接以点亮一个发光二极管。使用简单的工艺制成的印刷柔性电极可以在储能领域发挥重要作用。

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