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首页> 外文期刊>Advanced Functional Materials >Stamping of Flexible, Coplanar Micro-Supercapacitors Using MXene Inks
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Stamping of Flexible, Coplanar Micro-Supercapacitors Using MXene Inks

机译：使用MXene油墨冲压柔性，共面微型超级电容器

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摘要

The fast growth of portable smart electronics and internet of things have greatly stimulated the demand for miniaturized energy storage devices. Micro-supercapacitors (MSCs), which can provide high power density and a long lifetime, are ideal stand-alone power sources for smart microelectronics. However, relatively few MSCs exhibit both high areal and volumetric capacitance. Here rapid production of flexible MSCs is demonstrated through a scalable, low-cost stamping strategy. Combining 3D-printed stamps with arbitrary shapes and 2D titanium carbide or carbonitride inks (Ti3C2Tx and Ti3CNTx, respectively, known as MXenes), flexible all-MXene MSCs with controlled architectures are produced. The interdigitated Ti3C2Tx MSC exhibits high areal capacitance: 61 mF cm(-2) at 25 mu A cm(-2) and 50 mF cm(-2) as the current density increases by 32 fold. The Ti3C2Tx MSCs also showcase capacitive charge storage properties, good cycling lifetime, high energy and power densities, etc. The production of such high-performance Ti3C2Tx MSCs can be easily scaled up by designing pad or cylindrical stamps, followed by a cold rolling process. Collectively, the rapid, efficient production of flexible all-MXene MSCs with state-of-the-art performance opens new exciting opportunities for future applications in wearable and portable electronics.%1705506.1-1705506.10
机译：便携式智能电子产品和物联网的快速发展极大地刺激了对小型化储能设备的需求。微型超级电容器（MSC）可提供高功率密度和长寿命，是智能微电子的理想独立电源。但是，相对较少的MSC同时具有较高的面积和体积电容。在这里，通过可扩展的低成本冲压策略证明了柔性MSC的快速生产。将具有任意形状的3D打印邮票与2D碳化钛或碳氮化物墨水（分别称为MXene，称为Ti3C2Tx和Ti3CNTx）结合使用，即可制得具有受控体系结构的灵活的全MXene MSC。相互交叉的Ti3C2Tx MSC表现出较高的面电容：随着电流密度增加32倍，在25μA cm（-2）和50 mF cm（-2）时为61 mF cm（-2）。 Ti3C2Tx MSC还展示了电容电荷存储特性，良好的循环寿命，高能量和功率密度等。可以通过设计压垫或圆柱型压模，然后进行冷轧工艺，轻松扩大此类高性能Ti3C2Tx MSC的生产规模。总而言之，快速，高效地生产具有最先进性能的灵活的全MXene MSC，为将来在可穿戴和便携式电子产品中的应用打开了新的令人兴奋的机遇。％1705506.1-1705506.10

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