Halide Additives in Lithium Thiophosphate: Boosting Battery Performance

Lithium thiophosphate solids are great for lithium-ion batteries, but they have a drawback: they can degrade when used with certain parts of the battery, like the lithium anode and oxide cathode. So, scientists added different halides (such as chloride, bromide, and iodide) to these solids to see if it could improve both the ion conductivity and the stability. The result? Mixtures with bromide and iodide showed impressive ion conductivity at room temperature.However, the bromide mixture was more stable than the iodide one. By combining both halides, researchers found a sweet spot that not only enhanced ion conductivity but also the durability of the solid electrolytes, which is crucial for longer-lasting all-solid-state lithium batteries. This advancement could help make batteries more efficient and durable over time, which is a big deal for us all.