Please use this identifier to cite or link to this item: http://localhost:8080/xmlui/handle/123456789/936
Title: Influence of Calix[2]-p-benzo[4]pyrrole on the electrochemical properties of poly(ethylene oxide)-based electrolytes for lithium batteries
Authors: Stephan, A M
Prem Kumar, T
Angulakshmi, N
Salini, P S
Sabarinathan, R
Srinivasan, A
Sabu Thomas
Keywords: Lithium-polymer batteries
Anion binder
Ionic conductivity
Transference number
Interfacial properties
Polymer electrolytes
Liquid electrolytes
Anion receptors
Issue Date: 2011
Publisher: Wiley
Citation: Journal of Applied Polymer Science 120(4):2215-2221;15 May 2011
Abstract: Poly(ethylene oxide) based electrolytes comprising LiCF(3)SO(3) and calix[2]-p-benzo[4] pyrrole (CBP) as anion binder were prepared and subjected to DSC, ionic conductivity, cationic transport number and FTIR analyses. Symmetric cells of the type Li/PEO+LiCF(3)SO(3)+CBP/Li were assembled with these electrolytes and evolution of interfacial resistance as a function of time was analyzed. The cationic transference number, t(Li)(+), was found to increase from 0.23 to 0.78 on incorporation of CBP in the polymer electrolyte (PE). The incorporation of CBP as an anion trap does not enhance ionic conductivity below 60 degrees C although it improves the interfacial properties. FTIR study revealed the formation of Li-C compounds on the lithium surface upon contact with the CBP added membranes. The CBP added PE was found to be optimal in terms of ionic conductivity and transport number, t(Li)(+), above 70 degrees C, which were found to be higher for a system previously reported with calix[6] pyrrole.
ISSN: 0021-8995
Appears in Collections:2011

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