Direct-Ink-Write 3D Printing of Programmable Micro-Supercapacitors from MXene-Regulating Conducting Polymer Inks,Advanced Energy Materials

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Direct-Ink-Write 3D Printing of Programmable Micro-Supercapacitors from MXene-Regulating Conducting Polymer Inks
Advanced Energy Materials ( IF 24.4 ) Pub Date : 2023-01-12 , DOI: 10.1002/aenm.202203683
Le Li ₁ , Jian Meng ₁ , Xuran Bao ₁ , Yunpeng Huang ₁ , Xiu‐Ping Yan ₂ , Hai‐Long Qian ₂ , Chao Zhang ₃ , Tianxi Liu _{1,

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Affiliation

3D printing is gaining prospects thanks to the ease of manufacturing energy storage devices with programmable geometry at the macro- and microscales. Herein, a direct ink writing 3D printing approach for preparing all-printed flexible micro-supercapacitors is demonstrated using rationally designed poly(3,4-ethylenedioxythiophene):polystyrene sulfonate (PEDOT:PSS)/MXene composite gels as inks without the tedious processes and toxic organic additives. Among the printable inks, the homogeneously distributed MXene nanosheets can boost the printability of PEDOT:PSS solution and also regulate the interconnected electronic structures of the PEDOT:PSS undergoing a micellar to linear structure transition. The resulting 3D printed micro-supercapacitors and integrated devices can deliver exceptionally large areal capacitances, remarkable rate performance, and high cycling stability with thickness-independent capacitances even under exceptional deformations and low temperatures. This study thus provides a simple yet environmental-friendly approach for preparing the conducting-polymer-based inks for 3D printing of customized, multiscale, and integrated energy devices.

中文翻译：

使用 MXene 调节导电聚合物墨水直接墨水写入 3D 打印可编程微型超级电容器

由于在宏观和微观尺度上易于制造具有可编程几何形状的储能设备，3D 打印正在获得前景。在此，使用合理设计的聚（3,4-乙烯二氧噻吩）：聚苯乙烯磺酸盐（PEDOT：PSS）/ MXene复合凝胶作为墨水，无需繁琐的过程和有毒的有机添加剂。在可打印油墨中，均匀分布的 MXene 纳米片可以提高 PEDOT:PSS 溶液的可打印性，还可以调节 PEDOT:PSS 的互连电子结构，使其经历胶束到线性结构的转变。由此产生的 3D 打印微型超级电容器和集成设备可以提供超大的面积电容、卓越的倍率性能、即使在异常变形和低温下，具有与厚度无关的电容的高循环稳定性。因此，本研究提供了一种简单而环保的方法来制备用于定制、多尺度和集成能源设备 3D 打印的导电聚合物基油墨。

更新日期：2023-01-12

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