High lithium ion conductivity in mechanically milled Nb-doped m-Li₃Fe₂(PO₄)₃

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• 作者：Seong-Hwan Kim ; Gyu-In Shim ; Se-Young Choi ; ^{sychoi@yonsei.ac.kr}
• 关键词：Lithium iron phosphate ; Solid electrolyte ; Mechanical milling ; Ionic conduction ; Lithium ion battery
• 刊名：Journal of Alloys and Compounds
• 出版年：2017
• 出版时间：30 March 2017
• 年：2017
• 卷：699
• 期：Complete
• 页码：662-671
• 全文大小：3503 K
• 卷排序：699

文摘

Mechanically milled Nb-substituted monoclinic Li3Fe2(PO4)3 ceramics are prepared. Solid solution limit of m-Li3Fe2(PO4)3 is10 mol.% Nb2O5 or less. Sintered 5 mol.% Nb2O5-doped m-Li3Fe2(PO4)3 shows superior Li ionic conductivity. Electric conductivity of m- Li3Fe2(PO4)3 is ∼10−9 S cm−1.