Thin-Film Silver Halide Electrolyte Cells

Abstract

Thin‐film solid‐state batteries ranging in thickness from 5 to 12µ were prepared on quartz substrates by vacuum‐deposition techniques. Silver films ∼1000Aå thick were used in all cases as the reversible electrode, while platinum and in some cases gold films of a similar thickness were used as the counterelectrode. Electrolyte films consisted of evaporated , evaporated , and a double electrolyte of evaporated onto a film of or . Cells consisting of the above types of electrolytes were rechargeable, and the ones containing pure or or electrolyte exhibited long shelf life. Preliminary conductivity measurements using an a‐c bridge method indicate, as expected, that the electrode‐electrolyte interfaces rather than the electrolyte films are the principal sources of the high internal resistance exhibited by these batteries.