Abstract
Sulfide based electrolytes have attracted a lot of interest as potential candidates to be used in All-Solid-State cells. Some of their advantages include their processability and their high ionic conductivity which can reach values similar to those of liquid electrolytes. However, they pose several safety and lifetime challenges due to their high reactivity with moisture which leads to hazardous H2S gas evolution. The amount of H2S that is released is strongly dependent on the relative humidity of the environment that the electrolyte is exposed to, as well as the form and type of sulfide electrolyte. In this presentation we will describe a custom made device that was built to measure the H2S generation at specific relative humidities. Two different types of sulfide electrolytes were studied and results were obtained by those in the form of powder, slurry or membranes.
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