A Sodium Polysulfide Battery with Liquid/Solid Electrolyte: Improving Sulfur Utilization Using P2S5 as Additive and Tetramethylurea as Catholyte Solvent. - Medenbach, Lukas; Hartmann, Pascal; Janek, Juergen; Stettner, Timo; Balducci, Andrea; Dirksen, Cornelius; Schulz, Matthias; Stelter, Michael; Adelhelm, Philipp (Energy Technology, 2020)