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首页> 外文期刊>Journal of Physics, D. Applied Physics: A Europhysics Journal >Flexible and transparent planar supercapacitor based on embedded metallic mesh current collector
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Flexible and transparent planar supercapacitor based on embedded metallic mesh current collector

机译：基于嵌入式金属网集电器的柔性透明平面超级电容器

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摘要

The preparation of planar transparent flexible supercapacitors with high energy storage capacity, high mechanical properties and excellent optical properties is still a great challenge. The typical planar supercapacitor electrodes adopting the interdigital structure are semi-transparent, for the interdigital parts are opaque. Herein, we report a highly transparent and flexible planar supercapacitor by utilizing the embedded metallic mesh as the current collectors. The embedded metallic mesh with an interdigital structure, which was fabricated though the selective electrodeposition and film-invertion techniques, was employed as the planar supercapacitor electrode after being loaded with MnO2 by electrochemical deposition. The realized planar solid-state supercapacitor exhibits high performance electrochemical characters and high transparency with an areal capacitance of 1.33 mF cm(-2) and an optical transmittance of 81.7%. Further, the planar solid-state supercapacitor offered superior cycling stability of 99.3% retention even after 10 000 cycles, and meanwhile showed good mechanical stability, maintaining the areal capacitance of 90.3% retention after 1000 bending times at a radius of 5 mm, which mainly attribute to the embedded nature of the interdigital current collector. With excellent transparency, flexibility, and capacitance properties, the planar supercapacitor shows great potential in portable and comfortable designs for transparent wearable electronic device.
机译：具有高储能能力，高机械性能和优异光学性质的平面透明柔性超级电容器仍然是一个很大的挑战。采用叉指结构的典型平面超级电容器电极是半透明的，用于叉指部件是不透明的。在此，我们通过利用嵌入的金属网作为集电器来报告高度透明和柔性的平面超级电容器。通过电化学沉积加载MnO2之后，使用具有叉指结构的嵌入式金属网，其由选择性电沉积和薄膜驱动技术被用作平面超级电容器。实现的平面固态超级电容器具有高性能电化学特性和高透明度，具有1.33mF cm（-2）的面积电容，光透射率为81.7％。此外，平面固态超级电容器均匀的循环稳定性为99.3％的循环，即使在10 000次循环后，且同时显示出良好的机械稳定性，在5mm的半径为5mm后保持90.3％的体积滞留90.3％的滞留。归因于偶然集中集电器的嵌入性质。具有出色的透明度，灵活性和电容性质，平面超级电容器在便携式和舒适的设计中显示出透明可佩戴电子设备的便携式和舒适的设计。

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