Synthesis and characterization of Ag⁺ ion conducting glassy electrolytes

¹ Department of Applied Physics, Shri Shankaracharya Institute of Professional Management & Technology, Raipur 492 015, Chhattisgarh, India
² Department of Applied Physics, Christian College of Engg. & Tech., Bhilai 490026, Chhattisgarh, India
³ Dr. C.V. Raman University, Kargi Road, Kota, Bilaspur, Chhattisgarh, India

^a email: chandrassi@gmail.com

Received: 30 July 2012
Revised: 28 April 2013
Accepted: 19 June 2013
Published online: 26 July 2013

Abstract

Synthesis and characterization of new Ag⁺ ion conducting glassy systems: x[0.75AgI:0.25AgC1]: (1 – x)[Ag₂O:P₂O₅], where 0.1 < x < 1 in molar weight fraction, are reported. The present glassy electrolytes have been synthesized by melt-quench technique using a high-speed twin roller-quencher. An alternate host salt: “quenched [0.75AgI:0.25AgC1] mixed system/solid solution”, has been used in place of the traditional host AgI. The compositional dependence conductivity studies on the glassy systems: x[0.75AgI:0.25AgC1]:(1 – x)[Ag₂O:P₂O₅] as well as xAgI:(1 – x)[Ag₂O:P₂O₅] prepared identically, indicated that the composition at x = 0.75 exhibited the highest room temperature conductivity (σ ~ 5.5 x 10⁻³ S cm⁻¹). The composition: 0.75[0.75AgI:0.25AgC1]:0.25[Ag₂O:P₂O₅] has been referred to as optimum conducting composition (OCC). The some basic ion transport parameters viz. ionic conductivity (σ), ionic mobility (μ), mobile ion concentration (n), ionic drift velocity (v_d), ion transference number (t_ion) and activation energy (E_a) values have been characterized with the help of various experimental techniques. A solid state battery was fabricated and its basic cell parameters calculated.