Progress and perspectives on electrocatalysis in room-temperature Na–S batteries

The shuttling behavior of polysulfides always leads to cathode/anode instability and performance degeneration. Recently, the emerging catalysis strategy has been demonstrated as a reliable pathway to tackle the central issues caused by sulfur electrochemistry and revitalize RT Na-S batteries. This review provides an overview of electrocatalysis in the realm of RT Na-S batteries. Sulfur conversion chemistries and critical challenges in RT Na-S batteries are generalized firstly. The emphasis is focused on discussing chemisorption mechanisms for polysulfides, material innovation of catalysts, selectivity and design of catalysts, and a series of catalysis regulation strategies. Finally, existing challenges and perspectives regarding catalysis in RT Na-S batteries are offered, with the aim of propelling its rapid development.