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Ultra-foldable integrated high-performance in-plane micro-supercapacitors from laser-induced selective metallization
Energy Storage Materials ( IF 20.4 ) Pub Date : 2022-06-23 , DOI: 10.1016/j.ensm.2022.06.031
Yi Xie , Huiyuan Zhang , Jihai Zhang , Tao Zhou

The popularity of flexible and wearable electronic devices has stimulated the development of flexible energy storage devices, in which micro-supercapacitor (MSCs) are the most promising. Herein, we demonstrated a novel strategy for scalable fabrication of copper-nickel-polypyrrole (Cu-Ni-PPy) MSCs devices through laser-induced selective metallization of Cu interdigitated electrode combined with electroplating Ni and electrochemical deposition active material of PPy. The prepared Cu-Ni current collector exhibit high electrical conductivity and mechanical flexibility. Moreover, the obtained Cu-Ni-PPy MSCs devices display a large areal capacitance of 126.67 mF/cm2 and a high volume energy density of 31.78 and 5.39 mWh/cm3 at the corresponding power density of 0.15 and 7.5 W/cm3, respectively. Besides, the MSCs exhibit remarkable capacity retention of 94.8% after 10,000 bending cycles and 89.3% after 10,000 cycles. The wireless charging of the MSCs device can be realized by reasonably designing the wireless charging coil (WCO) for electromagnetic conversion. It is believed that this work provides insight into the manufacture of portability and flexibility of miniaturized energy storage devices.



中文翻译:

来自激光诱导选择性金属化的超可折叠集成高性能平面内微型超级电容器

柔性可穿戴电子设备的普及刺激了柔性储能设备的发展,其中微型超级电容器(MSCs)最具发展前景。在这里,我们展示了一种新的策略,通过激光诱导的铜叉指电极选择性金属化结合电镀镍和电化学沉积 PPy 活性材料,可扩展制造铜-镍-聚吡咯 (Cu-Ni-PPy) MSCs 器件。制备的Cu-Ni集流体表现出高导电性和机械柔韧性。此外,所获得的 Cu-Ni-PPy MSCs 器件在相应的功率密度 0.15 和 7.5 W/cm 下显示出 126.67 mF/cm 2的大面积电容和 31.78 和 5.39 mWh/cm 3的高体积能量密度。3,分别。此外,MSCs 在 10,000 次弯曲循环后表现出显着的容量保持率,分别为 94.8% 和 89.3% 在 10,000 次循环后。MSCs设备的无线充电可以通过合理设计用于电磁转换的无线充电线圈(WCO)来实现。相信这项工作为小型化储能设备的便携性和灵活性的制造提供了洞察力。

更新日期:2022-06-23
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