All-solid-state flexible supercapacitors based on papers coated with carbon nanotubes and ionic-liquid-based gel electrolytes
Identifieur interne : 000223 ( Main/Exploration ); précédent : 000222; suivant : 000224All-solid-state flexible supercapacitors based on papers coated with carbon nanotubes and ionic-liquid-based gel electrolytes
Auteurs : Yu Jin Kang [Corée du Sud] ; Haegeun Chung [Corée du Sud] ; Chi-Hwan Han [Corée du Sud] ; Woong Kim [Corée du Sud]Source :
- Nanotechnology [ 0957-4484 ] ; 2012-02-17.
Abstract
All-solid-state flexible supercapacitors were fabricated using carbon nanotubes (CNTs), regular office papers, and ionic-liquid-based gel electrolytes. Flexible electrodes were made by coating CNTs on office papers by a drop-dry method. The gel electrolyte was prepared by mixing fumed silica nanopowders with ionic liquid, 1-ethyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide ([EMIM][NTf2]). This supercapacitor showed high power and energy performance as a solid-state flexible supercapacitor. The specific capacitance of the CNT electrodes was 135Fg1 at a current density of 2Ag1, when considering the mass of active materials only. The maximum power and energy density of the supercapacitors were 164kWkg1 and 41Whkg1, respectively. Interestingly, the solid-state supercapacitor with the gel electrolyte showed comparable performance to the supercapacitors with ionic-liquid electrolyte. Moreover, the supercapacitor showed excellent stability and flexibility. The CNT/paper-and gel-based supercapacitors may hold great potential for low-cost and high-performance flexible energy storage applications.
Url:
DOI: 10.1088/0957-4484/23/6/065401
Affiliations:
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Flexible electrodes were made by coating CNTs on office papers by a drop-dry method. The gel electrolyte was prepared by mixing fumed silica nanopowders with ionic liquid, 1-ethyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide ([EMIM][NTf2]). This supercapacitor showed high power and energy performance as a solid-state flexible supercapacitor. The specific capacitance of the CNT electrodes was 135Fg1 at a current density of 2Ag1, when considering the mass of active materials only. The maximum power and energy density of the supercapacitors were 164kWkg1 and 41Whkg1, respectively. Interestingly, the solid-state supercapacitor with the gel electrolyte showed comparable performance to the supercapacitors with ionic-liquid electrolyte. Moreover, the supercapacitor showed excellent stability and flexibility. The CNT/paper-and gel-based supercapacitors may hold great potential for low-cost and high-performance flexible energy storage applications.</div></front></TEI><affiliations><list><country><li>Corée du Sud</li></country><region><li>Région capitale de Séoul</li></region><settlement><li>Séoul</li></settlement></list><tree><country name="Corée du Sud"><region name="Région capitale de Séoul"><name sortKey="Kang, Yu Jin" sort="Kang, Yu Jin" uniqKey="Kang Y" first="Yu Jin" last="Kang">Yu Jin Kang</name></region><name sortKey="Chung, Haegeun" sort="Chung, Haegeun" uniqKey="Chung H" first="Haegeun" last="Chung">Haegeun Chung</name><name sortKey="Han, Chi Hwan" sort="Han, Chi Hwan" uniqKey="Han C" first="Chi-Hwan" last="Han">Chi-Hwan Han</name><name sortKey="Kim, Woong" sort="Kim, Woong" uniqKey="Kim W" first="Woong" last="Kim">Woong Kim</name><name sortKey="Kim, Woong" sort="Kim, Woong" uniqKey="Kim W" first="Woong" last="Kim">Woong Kim</name></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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