Measures against hydrogen sulfide gas generated during the manufacturing process of sulfide-based all-solid-state batteries.

Gas monitoring and removal of low-concentration hydrogen sulfide gas generated from the manufacturing process of sulfide-based all-solid-state batteries.

The main reason hydrogen sulfide gas is generated during the manufacturing process of sulfide-based solid-state batteries is due to the materials and reactions used in the manufacturing process. In the manufacturing process, the materials that make up the components of sulfide-based solid-state batteries include sulfides. When these sulfides are heated or undergo chemical treatment, they may decompose and produce hydrogen sulfide gas. In battery manufacturing, multiple reactions can occur simultaneously. In some reaction processes, sulfides may change, resulting in hydrogen sulfide being produced as a byproduct. The manufacturing of sulfide-based solid-state batteries may involve high-temperature processing. When materials change at high temperatures, there is a possibility that sulfides will decompose and generate hydrogen sulfide. If incomplete reactions occur during the process or if impurities are present, this may contribute to the generation of hydrogen sulfide from sulfides. Since hydrogen sulfide gas is toxic and hazardous, monitoring and removal of hydrogen sulfide gas are necessary in factories and research facilities.

Secondary Cells/Batteries