A fast ion conducting mixed glass system: x[0.75AgI:0.25AgCl]: (1 - x)[]. Transport property and battery discharge characteristic studies

Abstract

Ionic transport properties and battery discharge studies on the fast ion conducting quenched mixed glass system x[0.75AgI:0.25AgCl]: (1 - x)[] are reported, where in molar wt %. The conventional host AgI has been replaced by an alternative compound: `a quenched [0.75AgI:0.25AgCl] mixed system'. The compositional ratio, for x = 0.75, exhibited the optimum conductivity, at C. Samples of the optimum conducting composition were prepared from the melt at two different cooling rates, namely about and about , referred to as quenched and annealed compositions respectively. The conductivity increase in the quenched composition has been attributed to the introduction of amorphousness due to rapid quenching. The structural and thermal analyses were carried out on material of the optimum composition. Various ionic transport parameters such as electrical conductivity (), transference number (), ionic mobility () and drift velocity () were measured as a function of temperature. The discharge characteristic of the solid state batteries fabricated, using the optimum conducting composition as electrolyte, were studied under different load conditions and some important cell parameters were computed from the discharge profile.

Ion transport and solid state battery studies on a new silver molybdate superionic glass system: x[0.75AgI: 0.25AgCl]: (1-x)[Ag2O: MoO3]

“…5. The rapid increase (decrease) in 'n' (It) with increasing temperature is akin to those reported earlier [10,11,13] and can be explained in the light of weak electrolyte and cluster bypass models [30,31].…”

“…The new host, investigated in the present laboratory, exhibits transport characteristics identical to AgI [8,9]. However, it has been observed that the new host yielded glass/composite electrolytes exhibiting ionic parameters superior to those prepared using AgI [10][11][12][13][14][15][16][17][18]. The present system is an another addition to the series.…”

Phase transition study in a [Cu2HgI4: 0·xAgI] mixed composite system

“…This phenomenon is usually observed in a glass electrolyte/composite system. In the logσT -x plot (figure 1), this mixed composite system looks qualitatively similar to those reported in the literature (Magistris et al 1976), but the σ values differ quantitatively at different temperature ranges (Agrawal and Kumar 1996).…”

“…The small jump in the conductivity was due to the β -α like transition of the system of fractional amounts of the unstabilized/unreacted host present in the system. The drop in conductivity was probably due to softening of the materials (Agrawal and Kumar 1996). The log σT values of all the mixed composite systems are also intermediate between the host, Cu 2 HgI 4 (Kumari and Secco 1985).…”

Studies of polarization/self-depolarization and electret-type effect in AgI

“…Ag § ions in AgI) is Using the '~t' data obtained as above and '~' data from conductivity measurements, one can easily evaluate 'n' at various temperatures for purely ionic systems. In fact, this experimental procedure has been employed by us for the measurements of '~t' and 'n' in the number of Ag § ion conducting ionic/superionic systems [11,[26][27][28][29][30][31].…”