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<p>Room-temperature sodium-sulfur batteries receive widespread attention due to their high theoretical energy density, low cost, and resource abundance. However, at room temperature, sodium-sulfur batteries face key challenges such as low cathode sulfur conversion efficiency, serious polysulfide shuttle effect, sodium anode dendrite growth, and poor electrolyte stability. To address these issues, extensive research has been devoted to the design of functional materials aimed at enhancing battery performance. This paper summarizes the working principle of room-temperature sodium-sulfur battery, elucidates the mechanisms by which these materials enhance sulfur utilization and suppress polysulfide diffusion. Finally, it discusses current challenges and future development directions, aiming to promote further performance enhancement of room-temperature sodium-sulfur batteries.</p>

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Toward practical room-temperature sodium-sulfur batteries: material strategies, interface engineering, and future pathways

  • 期刊论文

  • 发表日期：

    2026年3月12日

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  • Yingfei Wen,
  • Huizhen Hou,
  • Longyu Liu,
  • Gaoyue Liu,
  • Qiqian Gao,
  • Yonghui Zhang,
  • Yingying Yang,
  • Fei Xing

摘要

Room-temperature sodium-sulfur batteries receive widespread attention due to their high theoretical energy density, low cost, and resource abundance. However, at room temperature, sodium-sulfur batteries face key challenges such as low cathode sulfur conversion efficiency, serious polysulfide shuttle effect, sodium anode dendrite growth, and poor electrolyte stability. To address these issues, extensive research has been devoted to the design of functional materials aimed at enhancing battery performance. This paper summarizes the working principle of room-temperature sodium-sulfur battery, elucidates the mechanisms by which these materials enhance sulfur utilization and suppress polysulfide diffusion. Finally, it discusses current challenges and future development directions, aiming to promote further performance enhancement of room-temperature sodium-sulfur batteries.