Sodium-Sulfur batteries
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Sirisak Singsen, Francisco Ospina-Acevedo, Suwit Suthirakun, Pussana Hirunsit, Perla B. Balbuena, “Role of Inorganic Layers on Polysulfide Decomposition at Sodium-Metal Anode Surfaces for Room Temperature Na/S Batteries,” Phys. Chem. Chem. Phys., 25, 26316 – 26326, (2023).
Sodium metal is a promising anode material for room-temperature sodium sulfur batteries. Due to its high reactivity, typical liquid electrolytes (e.g. carbonate-based solvents and a Na salt) can undergo reduction to form a solid electrolyte interphase (SEI) layer, with inorganic components such as Na2CO3, Na2O, and NaOH, covering the anode surface along with other SEI organic products. One of the challenges is to understand the effect of… View more
Sirisak Singsen, Pussana Hirunsit, Suwit Suthirakun, Perla B. Balbuena, “Polysulfide Cluster Formation, Surface Reaction, and Role of Fluorinated Additive on Solid Electrolyte Interphase Formation at Sodium-Metal Anode for Sodium-Sulfur Batteries” J. Chem. Phys.,158, 124706, (2023).
Room-temperature sodium–sulfur batteries are promising next-generation energy storage alternatives for electric vehicles and large-scale applications. However, they still suffer from critical issues such as polysulfide shuttling, which inhibit them from commercialization. In this work, using first-principles methods, we investigated the cluster formation of soluble Na2S8 molecules, the reductive decomposition of ethylene carbonate (EC) and… View more
