Energy Storage Science and Technology ›› 2025, Vol. 14 ›› Issue (3): 1026-1039.doi: 10.19799/j.cnki.2095-4239.2024.1177

• Emerging Investigator Issue of Energy Storage • Previous Articles     Next Articles

Nanowires modulating ion transport and interfaces in solid-state lithium batteries

Zixin XIAO(), Hong ZHANG, Lin XU()   

  1. State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan 430070, Hubei, China
  • Received:2024-12-16 Revised:2025-02-15 Online:2025-03-28 Published:2025-04-28
  • Contact: Lin XU E-mail:1783713015@qq.com;linxu@whut.edu.cn

Abstract:

Solid-state electrolytes (SSEs) are crucial for next-generation lithium batteries, making the development of high-performance SSEs essential for achieving high safety and energy density. However, challenges related to lithium-ion transport and electrode-electrolyte interfaces in solid-state lithium batteries (SSLBs) have seriously hindered their development. Composite SSEs, formed by incorporating inorganic fillers into a polymer matrix, are considered the most promising option. Nanowires, with nanoscale diameter, high specific surface area, and excellent aspect ratio, enable continuous carrier transport, making them widely used in SSEs to promote lithium-ion transport and enhance electrode-electrolyte interfacial contact and stability, consequently improving the cycling performance and safety of SSLBs. Herein, wecomprehensively summarized recent progresses in nanowires for SSEs, detailing their role in regulating lithium-ion transport and electrode-electrolyte interfaces. Key mechanisms involve reducing the glass transition temperature and crystallinity of the polymer matrix, promoting the dissociation of lithium salts, restricting anion motion, attenuating the interactions between lithium ions and polymer chain segments, forming a new pathway for lithium-ion transport, enhancing electrode-electrolyte contact, and increasing the stability of electrode-electrolyte interfaces. Finally, existing challenges and prospects of nanowire-based SSLBs are discussed. This review aims to provide a comprehensive understanding of the mechanisms of nanowires regulating lithium-ion transport and interfacial stability, driving their further development in SSLBs.

Key words: solid-state lithium batteries, nanowires, composite solid-state electrolytes, ion transport, electrode-electrolyte interface

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