Nanostructured all-solid-state supercapacitor based on Li2S-P2S5 glass-ceramic electrolyte
- 5 March 2012
- journal article
- research article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 100 (10), 103902
- https://doi.org/10.1063/1.3693521
Abstract
While today’s lithium-ion batteries offer acceptable energy storage capability, they lack the ability to be cycled repeatedly more than a couple thousand times. Electrochemical capacitors, i.e., supercapacitors, are being developed whose lifetimes exceed 1 × 106 cycles and power densities surpass those of batteries by several times. Here, we present an all-solid-state supercapacitor using a Li2S-P2S5 glass-ceramic electrolyte as both separator and ion conductor. Three device architectures are examined including two with nanostructured electrodes which incorporate multi-walled carbon nanotubes(MWCNTs). Cyclic voltammograms and electrochemical impedance measurements demonstrate that these devices develop reversible double layer capacitance, and a maximum of 7.75 F/g is achieved in the device constructed by mechanically mixing the nanostructured electrodes.Electrochemical impedance spectroscopy explains non-idealities observed when MWCNTs are incorporated in the electrode layers.Keywords
This publication has 19 references indexed in Scilit:
- Improvement of the performance for quasi-solid-state supercapacitor by using PVA–KOH–KI polymer gel electrolyteElectrochimica Acta, 2011
- Design, fabrication, and evaluation of a 5F–5V prototype of solid-state PANI based supercapacitorSolid-State Electronics, 2011
- The role of nanomaterials in redox-based supercapacitors for next generation energy storage devicesNanoscale, 2011
- Brushed-on flexible supercapacitor sheets using a nanocomposite of polyaniline and carbon nanotubesJournal of Power Sources, 2010
- Conducting-polymer-based supercapacitor devices and electrodesJournal of Power Sources, 2010
- Electrochemical Double-Layer Capacitors Using Carbon Nanotube Electrode StructuresProceedings of the IEEE, 2009
- Glass–ceramic Li2S–P2S5 electrolytes prepared by a single step ball billing process and their application for all-solid-state lithium–ion batteriesElectrochemistry Communications, 2009
- Carbon-based materials as supercapacitor electrodesChemical Society Reviews, 2009
- Lithium ion conductivity of the Li2S–P2S5 glass-based electrolytes prepared by the melt quenching methodSolid State Ionics, 2007
- Temperature behavior and impedance fundamentals of supercapacitorsJournal of Power Sources, 2005