%0 Journal Article
%T Na+ Ion Conducting Hot-pressed Nano Composite Polymer Electrolytes
%A Angesh Chandra
%A Archan Chandra
%A Kiran Thakurb
%J Portugaliae Electrochimica Acta
%D 2012
%I Sociedade Portuguesa de Electroqu¨ªmica
%X Synthesis, characterization and polymeric battery studies of Na+ ion conducting Nano- Composite Polymer Electrolyte (NCPE) membranes: (1-x) [75PEO: 25NaPO3]: x SiO2, where x = 0 - 15 wt. (%), has been reported. NCPE membranes have been casted using a novel hot-press technique in place of the traditional solution cast method. The dispersal of SiO2 in SPE host: (75PEO: 25NaPO3), a conductivity enhancement of an order of magnitude achieved in NCPE film: [93 (75PEO: 25NaPO3): 7 SiO2]. This has been referred to as Optimum Conducting Composition (OCC). Material characterizations have been done with the help of XRD, SEM and DSC techniques. The ion transport behaviour in hot-pressed NCPEs has been discussed on the basis of experimental measurements on some basic ionic parameters viz. conductivity (¦Ò), ionic mobility (¦Ì), mobile ion concentration (n) and ionic transference number (t ion). The temperature dependent conductivity studies have been done to compute the activation energy (Ea) values from the 'log s - 1/T' Arrhenius plots. The ion conducting solid state polymeric battery was fabricated and cell-potential discharge characteristics have been studied at different load conditions.
%K nano-composite polymer electrolyte
%K ionic conductivity
%K X-ray diffraction
%K differential scanning calorimetry (DSC)
%K polymeric battery
%U http://www.scielo.oces.mctes.pt/scielo.php?script=sci_arttext&pid=S0872-19042012000200001