Transport and Diffusion Properties in PEO-BaCl2 Polymer Electrolytes for Battery Applications

Barium chloride (BaCl2) doped polyethylene oxide (PEO) based solid polymer electrolyte (SPE) films are prepared using solution cast technique. Impedance analysis reveals that the ionic conductivity of pure PEO polymer enhances with frequency as well as BaCh concentrations, the maximum ac - ionic con...

Full description

Saved in:
Bibliographic Details
Main Authors: Sagar, Rohan N, Ravindrachary, V., Hegde, Shreedatta, Guruswamy, B
Format: Conference Proceeding
Language:English
Subjects:
Barium chloride
Current carriers
Diffusion coefficient
Electrolytes
Ion currents
Ions
Molten salt electrolytes
Polyethylene oxide
Polymer films
Polymers
Solid electrolytes
Temperature dependence
Transport properties
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Barium chloride (BaCl2) doped polyethylene oxide (PEO) based solid polymer electrolyte (SPE) films are prepared using solution cast technique. Impedance analysis reveals that the ionic conductivity of pure PEO polymer enhances with frequency as well as BaCh concentrations, the maximum ac - ionic conductivity (1.09 × 10−4 Scm1) is observed at 10 wt% BaCl2 doped PEO polymer electrolyte films at high frequency. The temperature dependent conductivity studies were carried out for 10 wt% of BaCl2 concentration, here the maximum dc - ionic conductivity achieved is 1.44 × 10−2 Scm−1 at 333K temperature. From transport properties, it is observed that the transference number of ions in the polymer electrolyte system is 0.98 and electronic transference number are 0.019. Hence ions are the majority charge carriers than the electrons in BaCl2 doped PEO based solid polymer electrolytes. Diffusion coefficient study confirms the cations play a major role for the conduction mechanism with in the electrolyte system.
ISSN:1742-6588
1742-6596
DOI:10.1088/1742-6596/1172/1/012078