Abstract We present the fabrication of flexible all-solid-state micro-supercapacitors (MSCs) by using 3D direct-ink-writing (DIW) technique. The conductive poly(3,4-ethylenedioxythiophene)-poly(styrenesulfonate) (PEDOT:PSS) ink was printed by layer-by-layer fashion on flexible substrates. The MSC electrodes exhibit smooth surface and low sheet resistance. The flexible MSC fabricated by 3D DIW exhibits the areal capacitance per electrode of 31.6 mF cm−2, gravimetric capacitance of 15.6 F g−1, an energy density of 0.36 µWh cm−2, and power density of 80 µW cm−2. The flexible MSC shows high cyclic and bending stability. We believed that the optimized 3D DIW fabrication has potential for roll-to-roll 3D printing flexible all-solid-state MSCs.

中文翻译：

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高性能全固态微型超级电容器的 3D 直写制造

摘要 我们介绍了使用 3D 直接墨水书写 (DIW) 技术制造柔性全固态微型超级电容器 (MSC)。导电聚（3,4-亚乙基二氧噻吩）-聚（苯乙烯磺酸盐）（PEDOT：PSS）油墨通过逐层方式印刷在柔性基板上。MSC 电极表现出光滑的表面和低薄层电阻。由 3D DIW 制造的柔性 MSC 每个电极的面积电容为 31.6 mF cm-2，重量电容为 15.6 F g-1，能量密度为 0.36 µWh cm-2，功率密度为 80 µW cm-2。柔性 MSC 显示出高循环和弯曲稳定性。我们相信优化的 3D DIW 制造具有用于卷对卷 3D 打印柔性全固态 MSC 的潜力。