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Título

Novel hybrid micro-supercapacitor based on conducting polymer coated silicon nanowires for electrochemical energy storage

AutorAradilla, David; Bidan, Gérad; Gentile, Pascal; Gómez-Romero, P. ; Schubert, Thomas J. S.; Sadki, Saïd
Fecha de publicación2014
EditorRoyal Society of Chemistry (Great Britain)
CitaciónRSC Advances 4(50): 26462-26467 (2014)
ResumenThe development of a novel hybrid symmetric micro-supercapacitor based on poly(3,4-ethylenedioxythiophene) coated silicon nanowires using an ionic liquid (N-methyl-N-propylpyrrolidinium bis(trifluoromethylsulfonyl)imide) as an electrolyte has been demonstrated. The hybrid supercapacitor device was able to deliver a specific energy of 10 W h kg-1 and a maximal power density of 85 kW kg-1 at a cell voltage of 1.5 V. The hybrid device exhibited long lifetime and an outstanding electrochemical stability retaining 80% of the initial capacitance after thousands of galvanostatic charge-discharge cycles at a high current density of 1 mA cm-2. The improvement of the capacitive properties compared with the bare SiNWs was attributed to the pseudo-capacitive behavior induced by the conducting polymer coating.
URIhttp://hdl.handle.net/10261/129898
DOI10.1039/C4RA03192J
Identificadoresdoi: 10.1039/C4RA03192J
e-issn: 2046-2069
Aparece en las colecciones: (CIN2) Artículos
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