Roll-to-roll (R2R) fabrication of flexible and transparent all-solid-state supercapacitors (FT-ASSCs) is extremely challenging because of the classic trade-off between transparency and capacitance. In this work, we develop fully three-dimensional (3D)-printed, sandwich-type FT-ASSCs comprised of 3D line-patterned carbon black (CB)/Ag/CB electrodes on a transparent dialysis membrane (DM) separator. By tailoring the line pitch of the 3D electrodes, our FT-ASSC is able to achieve more than 80% optical transmittance and significantly higher areal capacitance than an opaque ASSC. More importantly, the performance of 3D-printed FT-ASSCs is unrestricted by the transparency-capacitance trade-off, and they exhibit a superior capacitive figure of merit value compared with state-of-the-art FT-ASSCs reported in the literature. Additionally, our FT-ASSCs demonstrate excellent cyclic stability and mechanical robustness because of the chemical and mechanical stability of the DM separator and effective encapsulation of polyurethane. The single-flow 3D printing technique introduced here can meet the requirements for industrial-scale R2R manufacturing of energy storage devices.

由于透明度和电容之间的经典权衡，柔性透明全固态超级电容器 (FT-ASSC) 的卷对卷 (R2R) 制造极具挑战性。在这项工作中，我们开发了完全三维 (3D) 打印的夹心型 FT-ASSC，由透明透析膜 (DM) 隔膜上的 3D 线图案炭黑 (CB)/Ag/CB 电极组成。通过调整 3D 电极的线距，我们的 FT-ASSC 能够实现超过 80% 的光学透射率和比不透明 ASSC 显着更高的面电容。更重要的是，3D 打印 FT-ASSC 的性能不受透明度-电容权衡的限制，与文献中报道的最先进的 FT-ASSC 相比，它们表现出优异的电容品质因数。此外，由于 DM 隔膜的化学和机械稳定性以及聚氨酯的有效封装，我们的 FT-ASSC 表现出出色的循环稳定性和机械稳定性。这里介绍的单流3D打印技术可以满足储能设备工业规模R2R制造的要求。