An Energetic Medium for Electrochemical Storage Utilizing the High Aqueous Solubility of Potassium Polysulfide

The aqueous solubility of potassium polysulfide is measured to be 8.5m (64% , 36% by weight) at 25°C, and 11.4m (70% by weight) at 50°C. This novel, energetic medium, containing more total sulfur than water, are investigated as high energy density half‐cells for secondary electrochemical storage systems, according to