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陈林森、刘艳花与FUNSOM合作在Energy & Environmental Science (IF29.518) 发表论文

日期: 2017-12-07     阅读次数:41

标题:Freestanding transparent metallic network based ultrathin, foldable and designable supercapacitors

作者:Y. H. Liu, J. L. Xu*, X. Gao, Y. L. Sun, J. J. Lv, S. Shen, L. S. Chen* and S. D. Wang*


论文摘要:Fully integrated ultrathin, transparent and foldable energy storage devices are essential for the development of smart wearable electronics, yet typical supercapacitor electrodes are substrate-supported which limits their thickness, transparency and mechanical properties. Employing freestanding transparent electrode with no substrate supporting could bring ultrathin, foldable and designable supercapacitors closer to reality. Herein, we report a freestanding, ultrathin (< 5 μm), highly conductive (3×104 S/cm), highly transparent (> 84% transmittance) and foldable metallic network electrode, loaded with MnO2 by electrochemical deposition, as the supercapacitor electrode. The freestanding metallic network electrode is fabricated via a simple and low-cost laser direct-writing micro-patterning and subsequently selective electrodeposition process, where the metallic network patterns, network periods, metal thickness and also the electrode film patterns can be designable for different applications. The obtained freestanding MnO2@Ni network electrode delivers an outstanding areal capacitance of 80.7 mF/cm2 and long-term performance stability (96.3% after 10000 cycles). Moreover, the symmetric solid-state supercapacitors employing the freestanding MnO2@Ni network electrode not only show high areal capacitance as well as high optical transparency (> 80% transmittance), but also can be tailored, attached, folded, rolled up, and crumpled into any objects or various shapes with only slight performance degradation. The advent of such transparent metallic network electrode featured as “freestanding, ultrathin and foldable” may open up a new avenue for realizing fully-integrated ultrathin, foldable and designable supercapacitors towards self-powered wearable electronics.

 

原文链接:http://pubs.rsc.org/-/content/articlehtml/2017/ee/c7ee02390a

期刊名称: Energy & Environmental Science
///页: Energy Environ. Sci., 2017, 10, 2534 



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