Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
10568430 | Journal of Power Sources | 2005 | 5 Pages |
Abstract
A micro-porous polymer electrolyte based on PVA was obtained from PVA-PVC based polymer blend film by a novel preferential polymer dissolution technique. The ionic conductivity of micro-porous polymer electrolyte increases with increase in the removal of PVC content. Finally, the effect of variation of lithium salt concentration is studied for micro-porous polymer electrolyte of high ionic conductivity composition. The ionic conductivity of the micro-porous polymer electrolyte is measured in the temperature range of 301-351 K. It is observed that a 2 M LiClO4 solution of micro-porous polymer electrolyte has high ionic conductivity of 1.5055 Ã 10â3 S cmâ1 at ambient temperature. Complexation and surface morphology of the micro-porous polymer electrolytes are studied by X-ray diffraction and SEM analysis. TG/DTA analysis informs that the micro-porous polymer electrolyte is thermally stable upto 277.9 °C. Chronoamperommetry and linear sweep voltammetry studies were made to find out lithium transference number and stability of micro-porous polymer electrolyte membrane, respectively. Cyclic voltammetry study was performed for carbon/micro-porous polymer electrolyte/LiMn2O4 cell to reveal the compatibility and electrochemical stability between electrode materials.
Related Topics
Physical Sciences and Engineering
Chemistry
Electrochemistry
Authors
A. Subramania, N.T. Kalyana Sundaram, N. Sukumar,