Please use this identifier to cite or link to this item: https://doi.org/10.1002/adfm.201102796
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dc.titleA high energy density asymmetric supercapacitor from nano-architectured Ni(OH) 2/Carbon nanotube electrodes
dc.contributor.authorTang, Z.
dc.contributor.authorTang, C.-H.
dc.contributor.authorGong, H.
dc.date.accessioned2014-10-07T09:47:33Z
dc.date.available2014-10-07T09:47:33Z
dc.date.issued2012-03-21
dc.identifier.citationTang, Z., Tang, C.-H., Gong, H. (2012-03-21). A high energy density asymmetric supercapacitor from nano-architectured Ni(OH) 2/Carbon nanotube electrodes. Advanced Functional Materials 22 (6) : 1272-1278. ScholarBank@NUS Repository. https://doi.org/10.1002/adfm.201102796
dc.identifier.issn1616301X
dc.identifier.urihttp://scholarbank.nus.edu.sg/handle/10635/86169
dc.description.abstractThe demand for advanced energy storage devices such as supercapacitors and lithium-ion batteries has been increasing to meet the application requirements of hybrid vehicles and renewable energy systems. A major limitation of state-of-art supercapacitors lies in their relatively low energy density compared with lithium batteries although they have superior power density and cycle life. Here, we report an additive-free, nano-architectured nickel hydroxide/carbon nanotube (Ni(OH) 2/CNT) electrode for high energy density supercapacitors prepared by a facile two-step fabrication method. This Ni(OH) 2/CNT electrode consists of a thick layer of conformable Ni(OH) 2 nano-flakes on CNT bundles directly grown on Ni foams (NFs) with a very high areal mass loading of 4.85 mg cm -2 for Ni(OH) 2. Our Ni(OH) 2/CNT/NF electrode demonstrates the highest specific capacitance of 3300 F g -1 and highest areal capacitance of 16 F cm -2, to the best of our knowledge. An asymmetric supercapacitor using the Ni(OH) 2/CNT/NF electrode as the anode assembled with an activated carbon (AC) cathode can achieve a high cell voltage of 1.8 V and an energy density up to 50.6 Wh/kg, over 10 times higher than that of traditional electrochemical double-layer capacitors (EDLCs). Copyright © 2012 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
dc.description.urihttp://libproxy1.nus.edu.sg/login?url=http://dx.doi.org/10.1002/adfm.201102796
dc.sourceScopus
dc.subjectasymmetric supercapacitor
dc.subjectcarbon nanotube
dc.subjectnichel hydroxide
dc.typeArticle
dc.contributor.departmentMATERIALS SCIENCE AND ENGINEERING
dc.description.doi10.1002/adfm.201102796
dc.description.sourcetitleAdvanced Functional Materials
dc.description.volume22
dc.description.issue6
dc.description.page1272-1278
dc.description.codenAFMDC
dc.identifier.isiut000301481000023
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