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Title: Hybrid supercapacitor with nano-TiP2O7 as intercalation electrode
Authors: Aravindan, V.
Reddy, M.V. 
Madhavi, S.
Mhaisalkar, S.G.
Subba Rao, G.V. 
Chowdari, B.V.R. 
Keywords: Activated carbon
Hybrid supercapacitor
Lithium ion battery
Issue Date: 15-Oct-2011
Citation: Aravindan, V., Reddy, M.V., Madhavi, S., Mhaisalkar, S.G., Subba Rao, G.V., Chowdari, B.V.R. (2011-10-15). Hybrid supercapacitor with nano-TiP2O7 as intercalation electrode. Journal of Power Sources 196 (20) : 8850-8854. ScholarBank@NUS Repository.
Abstract: Nano-size (≤100 nm) TiP2O7 is prepared by the urea assisted combustion synthesis, at 450 and 900 °C. The compound is characterized by powder X-ray diffraction, Rietveld refinement, high resolution transmission electron microscopy and surface area methods. Lithium cycling properties by way of galvanostatic cycling and cyclic voltammetry (CV) showed a reversible and stable capacity of 60 (±3) mAh g-1 (0.5 mole of Li) up to 100 cycles, when cycled at 15 mA g-1 between 2-3.4 V vs. Li. Non-aqueous hybrid supercapacitor, TiP2O7 (as anode) and activated carbon (AC) (as cathode) has been studied by galvanostatic cycling and CV in the range, 0-3 V at 31 mA g-1 and exhibited a specific discharge capacitance of 29 (±1) F g-1stable in the range, 100-500 cycles. The Ragone plot shows a deliverable maximum of 13 Wh kg -1 and 371 W kg-1 energy and power density, respectively. © 2011 Elsevier B.V. All rights reserved.
Source Title: Journal of Power Sources
ISSN: 03787753
DOI: 10.1016/j.jpowsour.2011.05.074
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