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Electrolytes/Interphases: Enabling Distinguishable Sulfur Redox Processes in Room-Temperature Sodium-Sulfur Batteries

Journal Article


Abstract


  • Sodium and sulfur offer a promising application in rechargeable batteries due to their low cost, abundant resources and high energy density. Room-temperature (RT) Na���S batteries have been proposed by paring S cathodes with Na anodes in non-aqueous liquid electrolytes. Over decades, researchers have mainly focussed on the development of superior electrodes by nano-engineering efficient S cathodes and stable Na anodes. These studies have effectively improved the electrochemical performance of RT Na���S batteries, validating their bright prospects as stationary energy storage devices for the modern renewable energy trajectory. In comparison, the research on electrolytes receives much less attention, and there is a lack of understanding regarding the impacts of different electrolytes on electrode interfaces and overall battery mechanisms. In this review, multiple-kinds of electrolytes and the interfaces between electrolytes and electrodes in RT Na���S batteries are comprehensively discussed. Challenges and recent progress are presented in terms of the sulfur electrochemical mechanisms: The solid-solid and solid-liquid conversions. With the presentation of the S redox mechanism, future prospects of electrolyte optimizations, cathode, and anode as well as interfacial improvement are systematically discussed.

UOW Authors


Publication Date


  • 2022

Citation


  • Liu, H., Lai, W. H., Lei, Y., Yang, H., Wang, N., Chou, S., . . . Wang, Y. X. (2022). Electrolytes/Interphases: Enabling Distinguishable Sulfur Redox Processes in Room-Temperature Sodium-Sulfur Batteries. Advanced Energy Materials, 12(6). doi:10.1002/aenm.202103304

Scopus Eid


  • 2-s2.0-85122244144

Volume


  • 12

Issue


  • 6

Place Of Publication


Abstract


  • Sodium and sulfur offer a promising application in rechargeable batteries due to their low cost, abundant resources and high energy density. Room-temperature (RT) Na���S batteries have been proposed by paring S cathodes with Na anodes in non-aqueous liquid electrolytes. Over decades, researchers have mainly focussed on the development of superior electrodes by nano-engineering efficient S cathodes and stable Na anodes. These studies have effectively improved the electrochemical performance of RT Na���S batteries, validating their bright prospects as stationary energy storage devices for the modern renewable energy trajectory. In comparison, the research on electrolytes receives much less attention, and there is a lack of understanding regarding the impacts of different electrolytes on electrode interfaces and overall battery mechanisms. In this review, multiple-kinds of electrolytes and the interfaces between electrolytes and electrodes in RT Na���S batteries are comprehensively discussed. Challenges and recent progress are presented in terms of the sulfur electrochemical mechanisms: The solid-solid and solid-liquid conversions. With the presentation of the S redox mechanism, future prospects of electrolyte optimizations, cathode, and anode as well as interfacial improvement are systematically discussed.

UOW Authors


Publication Date


  • 2022

Citation


  • Liu, H., Lai, W. H., Lei, Y., Yang, H., Wang, N., Chou, S., . . . Wang, Y. X. (2022). Electrolytes/Interphases: Enabling Distinguishable Sulfur Redox Processes in Room-Temperature Sodium-Sulfur Batteries. Advanced Energy Materials, 12(6). doi:10.1002/aenm.202103304

Scopus Eid


  • 2-s2.0-85122244144

Volume


  • 12

Issue


  • 6

Place Of Publication