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Effect of X-ray Irradiation on Dielectric Properties of Polymer Electrolytes Complexed with LiCF3SO3

Effect of X-ray Irradiation on Dielectric Properties of Polymer Electrolytes Complexed with LiCF₃SO₃

Centre for Scientific and Applied Research, School of Basic Engineering and Sciences, PSN College of Engineering and Technology, Tirunelveli-627 152, Tamilnadu, India.

Department of Electrical and Computer Engineering, Ajou University, Suwon – 443 749, South Korea

Instituto de Energias Renovables-UNAM, 62580 Temixco, Morelos, Mexico

Corresponding Author Email:

vijilvani@gmail.com,sjp@ier.unam.mx

Received:

March 07, 2014

| |

Accepted:

August 06, 2014

| | Citation

404-article_text-584-1-10-20170710.pdf

OPEN ACCESS

Abstract:

Solid polymer electrolytes of polyethylene oxide (PEO) embedded with LiCF₃SO3 was prepared and subjected to X-ray irradiation of different dosages (1.5 to 6 Gy). Ionic conductivity and dielectric studies were made over a frequency range of 100 Hz to 490 KHz. A little increase in ionic conductivity was noted for the sample irradiated for 1.5 Gy and the equivalent circuit remained unaltered for irradiated samples. Remarkable increase in dielectric constant was found for the irradiated samples. It was found that irradiation improved the dissolution of lithium salt and increased the polymer/Lithium interaction and thus improved the polarizability of the electrolyte. The frequency of hopping and liberation of free lithium ions were found altered by irradiation and hence the given dosage was found to have an optimum value in concern with the ionic conductivity of the electrolyte.

Keywords:

PEM fuel cell, polyethelene oxide, LiCF3SO3 , dielectric properties

1. Introduction

2. Experimental Details

3. Results and Discussion

4. Conclusions

References

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Effect of X-ray Irradiation on Dielectric Properties of Polymer Electrolytes Complexed with LiCF3SO3