PEO|Sncl2|PANI composites: as an electrolyte in solid-state battery

• Published in: Ionics Vol. 19; no. 1; pp. 91 - 97
• Main Authors: Parveen, Ameena, Anilkumar, Koppalkar R., Patil, Shantala D., Roy, Aashis S.
• Format: Journal Article
• Language: English
• Published: Berlin/Heidelberg Springer-Verlag 2013
• Subjects: Chemistry; Chemistry and Materials Science; Condensed Matter Physics; Electrochemistry; Energy Storage; Optical and Electronic Materials; Original Paper; Renewable and Green Energy; Battery applications; SEM; Polyethylene oxide; Polyaniline; FTIR
• ISSN: 0947-7047; 1862-0760
• DOI: 10.1007/s11581-012-0719-7

Solid-state polymer electrolytes possess high conductivity and have advantages compared with their liquid counterparts. The polyethylene oxide (PEO)-based polymer is a good candidate for this purpose. The PEO/SnCl
2
/polyaniline composite (PSP composites) at different weight percentages were prepared in anhydrous acetonitrile media. Structural studies were carried out of the prepared composites by X-ray diffraction, Fourier transmission infrared spectroscopy, and surface morphology by scanning electron microscopy. The
σ
dc
was carried out by a two-probe method, and it is found that the conductivity increases with an increase in temperature. The temperature-dependent conductivity of the composites exhibits a typical semi-conducting behavior and hence can be explained by the 1D variable range hopping model proposed by Mott. The electrochemical cell parameters for battery applications at room temperature have also been determined. The samples are fabricated for battery application in the configuration of Na: (PSP): (I
2
 + C + sample), and their experimental data are measured using Wagner’s polarization technique. The cell parameters result in an open-circuit voltage of 0.83 V and a short-circuit current of 912 μA for PSP (70:30:10) composite. Hence, these composites can be used in polymer electrolyte studies.