In response to the demand for flexible and sustainable energy storage devices that exhibit high electrochemical performance, a supercapacitor system is fabricated using mulberry tree‐derived paper as a substrate and Poly(3,4‐ethylenedioxythiophene)‐poly(styrenesulfonate) (PEDOT:PSS) and carbon black as the active material. The mulberry paper‐based supercapacitor system demonstrates high energy density of 29.8–39.8 Wh kg⁻¹ and power density of 2.8–13.9 kW kg⁻¹ with 90.7% retention of its initial capacity over 15 000 charge–discharge cycles. In addition, the mulberry tree fibers are known to have superior mechanical strength and toughness and the mulberry paper‐based supercapacitor; as a result, exhibit high mechanical and chemical toughness; 99% of its initial capacity is retained after 100 repeated applications of bending strains, and twisting. 94% capacity retention is observed even after exposure to HCl and H₂SO₄ acid solutions. The fabrication methodology of the mulberry‐based supercapacitor is highly scalable and could be stacked to increase the energy storage capacity, where operation of light‐emitting diode lights with a drive voltage of 12 V integrated in a wearable device is demonstrated.

中文翻译：

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桑树纸基超级电容器具有较高的机械和化学韧性，适用于大规模储能应用

为了满足对具有高电化学性能的灵活，可持续的储能设备的需求，超级电容器系统是使用桑树衍生的纸作为基材和聚（3,4-乙烯二氧噻吩）-聚（苯乙烯磺酸盐）（PEDOT：PSS）制成的。 ）和炭黑作为活性物质。基于桑树纸的超级电容器系统显示出29.8–39.8 Wh kg ^-1的高能量密度和2.8–13.9 kW kg ^-1的功率密度在15 000次充放电循环中保留了90.7％的初始容量。此外，桑树纤维具有优异的机械强度和韧性，并具有桑树纸基超级电容器。结果显示出高的机械和化学韧性；经过100次反复施加弯曲应变和扭曲后，其初始容量的99％得以保留。即使暴露于HCl和H ₂ SO ₄酸性溶液中，也观察到94％的容量保持率。基于桑树的超级电容器的制造方法具有高度的可扩展性，可以堆叠起来以提高能量存储容量，其中展示了集成在可穿戴设备中的驱动电压为12 V的发光二极管灯的工作方式。