Structural and Ion Transport Studies in (100-x) PVdF + xNH4SCN Gel Electrolyte - Materials Sciences and Applications

MSA > Vol.2 No.7, July 2011

Materials Sciences and Applications

Volume 2, Issue 7 (July 2011)

ISSN Print: 2153-117X ISSN Online: 2153-1188

Google-based Impact Factor: 0.97 Citations

Structural and Ion Transport Studies in (100-x) PVdF + xNH₄SCN Gel Electrolyte ()

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Download as PDF (Size: 1292KB) PP. 721-728

DOI: 10.4236/msa.2011.27100 5,192 Downloads 9,846 Views Citations

Author(s)

Kamlesh Pandey, Mrigank Mauli Dwivedi, Nidhi Asthana, Markandey Singh, Shanker Lal Agrawal

Affiliation(s)

ABSTRACT

In order to obtain highly conductive polymer gel electrolytes for electrochemical devices, Poly (vinylidene fluoride) (PVdF) based gel electrolytes namely (100–x)PVdF + xNH₄SCN electrolyte system has been synthesized by solution cast technique and characterized by XRD, DSC, IR, SEM and electrical measurements. IR study of gel electrolytes shows interaction of PVdF matrix and dopant salt with prominence of α-phase. This result is also well supported by XRD and DSC studies. The electrolytes are electrochemically stable within ± 1.5 V. The optimum bulk electrical conductivity for 90PVdF + 10NH₄SCN electrolyte has been found to be ~ 2.5 × 10^–2 S●cm^–1. Dielectric relaxation behavior shows low frequency dispersion and α_c-related relaxation peak is observed in loss spectra. Polarization behavior of gel electrolyte shows ionic nature of charge transport (T_ion. > 0.90). The temperature dependent conductivity shows VTF behavior.

KEYWORDS

Poly (Vinylidene Fluoride), Gel Electrolyte, Ion Transport, Dielectric Relaxation, Structural Studies

Share and Cite:

Pandey, K. , Dwivedi, M. , Asthana, N. , Singh, M. and Agrawal, S. (2011) Structural and Ion Transport Studies in (100-x) PVdF + xNH₄SCN Gel Electrolyte. Materials Sciences and Applications, 2, 721-728. doi: 10.4236/msa.2011.27100.

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