A high-performance and flexible micro-supercapacitor based on a self-generated nanoporous silver layer was fabricated by a one-step laser-induced growth-sintering process of a particle-free organometallic solution. The porous structures self-generated on a polymer film and were freely adjustable by controlling the rate of laser input dose. By changing the patterning mode, the nanoporous electrodes with extremely high surface area and highly conductive current collectors were formed in a single processing domain. Electrodeposition of hetero metal oxides (manganese and iron oxides) as the active materials followed, and a flexible micro-supercapacitor with high volumetric energy density of 16.3 mW h cm⁻³ and power density of 3.54 W cm⁻³ was formed. This was achieved through the large surface area and high electrical conductivity of the nanoporous silver layer, and high operating voltage due to the asymmetrical electrode configuration. This method resulted in a faster and more cost-effective manufacturing process than conventional MSCs fabrication. It also achieved the highest volumetric energy density in metal/oxide-based MSCs as a state-of-the-art performance.

中文翻译：

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通过一步激光自生纳米多孔金属/氧化物电极的高能，柔性微型超级电容器

通过无颗粒有机金属溶液的一步法激光诱导生长烧结工艺，制备了一种基于自生纳米多孔银层的高性能柔性微型超级电容器。多孔结构在聚合物膜上自生，可以通过控制激光输入剂量的速率自由调节。通过改变图案化模式，在单个处理域中形成具有极高表面积和高导电集流体的纳米多孔电极。随后进行电沉积作为活性材料的杂金属氧化物（锰和铁的氧化物），以及具有16.3 mW h cm ^-3的高体积能量密度和3.54 W cm ^-3的功率密度的柔性微型超级电容器成立了。这是通过纳米多孔银层的大表面积和高电导率以及由于不对称电极配置而产生的高工作电压来实现的。与传统的MSC制造相比，此方法可实现更快，更经济高效的制造过程。作为最先进的性能，它还在金属/氧化物基MSC中实现了最高的体积能量密度。