Study on the performance of dipotassium polysufides and silicon-graphiteelectrodes in potassium-sulfur battery

Potassium-sulfur batteries are shown to possess high specific capacity and energy density, as well asthe advantage of using abundant potassium and sulfur resources. Silicon active material is also apromising option for K-S batteries due to its high theoretical capacity. This study presents aninvestigation into the properties of dipotassium polysulfides (K۲Sn, where ۲ ≤ n ≤ ۴) cathodes withvarying sulfur content, paired with silicon-graphite anodes, in the context of potassium-sulfur (K-S)battery. Elemental mapping was conducted to determine the distribution of elements in the electrodes,and cyclic voltammetry (CV) was used to assess the electrochemical performance of the cells.

کلیدواژه ها:

Potassium-sulfur battery ، Potassium sulfide ، Silicon ، Graphite