@article{713ed450f3c747f6b9971cd5245dc0fc,
title = "Advanced asymmetric supercapacitor based on conducting polymer and aligned carbon nanotubes with controlled nanomorphology",
abstract = "An asymmetric supercapacitor, exploiting nm-scale conformal coating of conducting polymer (CP) on aligned carbon nanotubes (A-CNTs) as the negative electrode and ultra-high density A-CNTs as the positive electrode, has been developed. The conformal CP coating on the A-CNTs enhances charge storage while the aligned nanotube morphology provides straight and fast ion transport pathways. The A-CNT electrode, densified using a unique mechanical method, possesses high volumetric capacitance while preserving the aligned morphology to maintain the high power, provides an ideal positive electrode for the asymmetric supercapacitor. By complementary tailoring of the asymmetric electrodes, the device exhibits a wide operation voltage of 4V with maximum energy and power densities of 82.8WhL-1 and 130.6kWL-1 in volumetric performance. In this paper, a new method was introduced which is simple but can determine directly the energy storage efficiency of a supercapacitor cell. An equivalent circuit was developed to model the performance of each electrode and investigate the asymmetric design of the cell.",
keywords = "Aligned carbon nanotube, Energy storage efficiency, Equivalent circuit, Ionic liquids, Supercapacitor, Volumetric electrochemical performance",
author = "Yue Zhou and Haiping Xu and Noa Lachman and Mehdi Ghaffari and Shan Wu and Yang Liu and Asli Ugur and Gleason, {Karen K.} and Wardle, {Brian L.} and Zhang, {Q. M.}",
note = "Funding Information: This research was supported by AFOSR under Grant no. FA9550-11-1-0192 (Penn State and MIT) . Haiping Xu was supported by a Chinese scholarship. At MIT, this work was performed in part at: the Center for Nanoscale Systems (CNS), a member of the National Nanotechnology Infrastructure Network (NNIN), which is supported by the National Science Foundation under NSF award no. ECS-0335765 , and made use of the MIT MRSEC Shared Experimental Facilities supported by the National Science Foundation under award number DMR-0819762 , utilized the core facilities at the Institute for Soldier Nanotechnologies at MIT, supported in part by the U.S. Army Research Office under contract W911NF-07-D-0004 , and was carried out in part through the use of MIT׳s Microsystems Technology Laboratories. ",
year = "2014",
month = oct,
doi = "10.1016/j.nanoen.2014.07.007",
language = "אנגלית",
volume = "9",
pages = "176--185",
journal = "Nano Energy",
issn = "2211-2855",
publisher = "Elsevier BV",
}