期刊
NANO ENERGY
卷 15, 期 -, 页码 33-42出版社
ELSEVIER
DOI: 10.1016/j.nanoen.2015.04.001
关键词
Actin-myosin interaction; Carbon nanotobe; Graphene; Homogeneous inter-face stress; Stretchable electronics; Stretchable supercapacitor
类别
资金
- Global Frontier R&D Program on Center for Multiscale Energy System - National Research Foundation under the Ministry of Science, ICT Et Future, Korea [NRF-2011-0031571]
- Supercomputing Center/Korea Institute of Science and Technology [KSC-2014-C1-013]
- National Research Foundation of Korea [2011-0031571] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
The development of stretchable energy storage systems for fully power-independent and stretchable devices for the next generation is increasing. Here, we report on a graphene-carbon-nanotube-layered structure for use as a stretchable electrode and its application in all-solid-state stretchable supercapacitors and various electronics. In this system, graphene serves as a floating track and carbon nanotubes convert external stress into the stretching motion of the electrode. The structure provides omnidirectional deformation without inhomogeneous interface stress and slip stress between active sites and the stretching passive components. The suggested system offers significant improvement over existing methodologies for fabricating stretchable energy storage systems and electronics in terms of density of capacitance, negligible passive volume, biaxial and twisted deformation, and durability. The integration of stretchable electrodes in various substrates and their application as all-solid-state, stretchable supercapacitors are demonstrated, and a high value of capacitance in the deformed state of 329 F g(-1) was achieved (based on mass of the graphene). The physical characteristics of the system are also revealed by first-principle calculations and three-dimensional finite-element methods. (C) 2015 Elsevier Ltd. All rights reserved.
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