化工学报

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硫化物电解质的界面调控及研究进展

徐彦芹(), 蔡文静()   

  1. 重庆大学化学化工学院,重庆 401331
  • 收稿日期:2025-04-20 修回日期:2025-05-24 出版日期:2025-06-09
  • 通讯作者: 徐彦芹
  • 作者简介:蔡文静(2001-),女,硕士研究生,384246686@qq.com
    蔡文静(2001-),女,硕士研究生,384246686@qq.com

Interface Regulation and Research Progress of Sulfide Electrolytes

Wenjing CAI(), Yanqin XU()   

  1. College of Chemistry and Chemical Engineering, Chongqing University, Chongqing 401331
  • Received:2025-04-20 Revised:2025-05-24 Online:2025-06-09
  • Contact: Wenjing CAI

摘要:

全固态锂电作为下一代高能量密度、高安全性能储能器件,其核心固态电解质的研究备受关注。硫化物固态电解质凭借超高的离子电导率、优异的机械性能以及较好的界面兼容性,展现出显著的产业化潜力。然而,硫化物电解质仍面临空气稳定性差、界面副反应及锂枝晶生长等挑战。系统综述了硫化物基固态电解质的分类及其结构特性,深入分析了空气稳定性和电化学稳定性失效机制并总结优化策略。最后,针对规模化制备、界面优化及薄层电解质开发等关键问题,提出了未来研究方向,为硫化物电解质的实用化提供理论参考。

关键词: 全固态电池, 固态电解质, 硫化物电解质, 硫化物, 电极

Abstract:

All-solid-state lithium batteries, as the next-generation high-energy-density and high-safety-performance energy storage devices, have drawn significant attention to the research of their core solid-state electrolytes. Sulfide solid-state electrolytes, with their ultra-high ionic conductivity, excellent mechanical properties, and good interface compatibility, have shown remarkable industrialization potential. However, sulfide electrolytes still face challenges such as poor air stability, interfacial side reactions, and lithium dendrite growth. This paper systematically reviews the classification and structural characteristics of sulfide-based solid-state electrolytes, deeply analyzes the failure mechanisms of air stability and electrochemical stability, and summarizes the optimization strategies. Finally, it proposes future research directions for key issues such as large-scale preparation, interface optimization, and thin-layer electrolyte development, providing theoretical references for the practical application of sulfide electrolytes.

Key words: all-solid-state battery, solid electrolyte, Sulfide electrolyte, Sulfide, electrode

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