Mechanochemical synthesis of Li<sub>2</sub>O–LiI-based solid electrolytes with glass-forming oxides

DOI Web Site 被引用文献1件 参考文献44件
  • Fujita Yushi
    Department of Applied Chemistry, Graduate School of Engineering, Osaka Metropolitan University
  • Motohashi Kota
    Department of Applied Chemistry, Graduate School of Engineering, Osaka Metropolitan University
  • Sakuda Atsushi
    Department of Applied Chemistry, Graduate School of Engineering, Osaka Metropolitan University
  • Hayashi Akitoshi
    Department of Applied Chemistry, Graduate School of Engineering, Osaka Metropolitan University

書誌事項

公開日
2024-12-01
資源種別
journal article
DOI
  • 10.2109/jcersj2.24087
公開者
公益社団法人 日本セラミックス協会

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説明

<p>Oxide-based lithium-ion conductive solid electrolytes are promising owing to their safety. Both crystalline and glass-oxide solid electrolytes have been explored to obtain materials with high ionic conductivity and ductility. Amorphous Li2O–LiI solid electrolytes exhibit ionic conductivities of approximately 10−5 S cm−1 and excellent ductility, and all-solid-state batteries can be fabricated solely by cold pressing. However, the ionic conductivity of Li2O–LiI solid electrolytes should be further increased to enhance battery performance. Herein, glass-forming oxides (B2O3, SiO2, P2O5, and GeO2) and intermediate oxides (Al2O3 and V2O3) were added to Li2O–LiI solid electrolytes using mechanochemical techniques to increase the ionic conductivity of Li2O–LiI solid electrolytes. The structure varied depending on the additives used in the prepared Li2O–LiI-based solid electrolytes. The ionic conductivity decreased as the amount added increased. However, the ionic conductivity was maintained after V2O3 was added. V2O3 is preferable candidates for increasing the ionic conductivity of Li2O–LiI solid electrolytes. Our fundamental research on material synthesis will contribute to the future development of oxide-based solid-electrolyte materials.</p>

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