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High-energy, flexible micro-supercapacitor by one-step laser fabrication of self-generated nanoporous metal/oxide electrode

Abstract

A high-performance and flexible micro-supercapacitor based on a self-generated nanoporous silver layer is fabricated by a one-step laser-induced growth sintering process of a particle-free orgnometallic solution. The porous structures self-generated on a polymer film and are 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 are formed in a single processing domain. Electrodeposition of hetero metal oxides, the manganese and iron oxides as the active materials are followed, and the flexible micro-supercapacitor with high volumetric energy density of 16.3 mWh/cm3 and power density of 3.54 W/cm3. This is achieved through large surface area, high electrical conductivity of the nanoporous silver layer, and high operating voltage due to the asymmetrical electrode configuration. This method results in a faster and more cost-effective manufacturing process than conventional MSCs fabrication and achieves the highest volumetric energy density in metal/oxide-based MSCs as a state-of-the-art performance.

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Publication details

The article was received on 10 Sep 2017, accepted on 31 Oct 2017 and first published on 31 Oct 2017


Article type: Communication
DOI: 10.1039/C7TA07960E
Citation: J. Mater. Chem. A, 2017, Accepted Manuscript
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    High-energy, flexible micro-supercapacitor by one-step laser fabrication of self-generated nanoporous metal/oxide electrode

    J. Lee, J. Y. Seok, S. Son, B. Kang and M. Yang, J. Mater. Chem. A, 2017, Accepted Manuscript , DOI: 10.1039/C7TA07960E

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