The Ag/Ag3SI/I2 solid-electrolyte cell

✍ Scribed by T. Takahashi; O. Yamamoto

• Publisher: Elsevier Science
• Year: 1966
• Tongue: English
• Weight: 651 KB
• Volume: 11
• Category: Article
• ISSN: 0013-4686
• DOI: 10.1016/0013-4686(66)87055-x

✦ Synopsis

A new solid electrolyte, Ag,SI, was used for the solidelectrolyte cell. A@1 was synthesized by the solid-state reaction of the equivalent moles of silver iodide and silver sulphide. The electrical conduction of AgaS was almost entirely ionic; 10-l hz-l cm-l at room temperature.

the ionic conductivity was about 1 x

The anodic and cathodu: polarizations of a solid-electrolyte cell, Ag/Ag$I/I,, were studied at room temperature with the help of a silver wire reference electrode. When a silver plate was used as the anode, anode polarization was dominant, whereas when a silver amalgam anode was used, the polarization was greatly decreased. A cell with iodine and acetylene black mixture as cathode material had the lowest polarization at the cathode.

In the cell, silver amalgam/Ag$I/I~-acetylene black, the voltage dropped by only 100 mV after 3 h at steady current discharge of 1000 PA/cm*. The internal resistance of the cell did not change during the discharge, probably because the cell reaction product, AgI, dissolves in Ag$I.

Rh&Emploi

d'un nouvel &ctrolyte, Ag,SI, dans les cellties B Clectrolyte solide. On le syn-th&ise. par r&action en proportions $ est excltivement ionique (1 X lO-*