材料科学
离子电导率
电解质
无定形固体
复合数
钙钛矿(结构)
晶界
电导率
锂(药物)
化学工程
微观结构
电池(电)
钛酸锂
复合材料
快离子导体
无机化学
锂离子电池
结晶学
电极
物理化学
热力学
内分泌学
功率(物理)
工程类
化学
物理
医学
作者
Taiye J. Salami,Sam H. Imanieh,Joseph G. Lawrence,Leopoldo L. Martín
标识
DOI:10.1016/j.matlet.2019.07.084
摘要
Of most solid materials available as potential solid electrolytes for lithium-ion batteries, the crystalline perovskite type lithium lanthanum titanate (Li0.5La0.5TiO3 or LLTO) has been shown to possess one of the highest room temperature bulk ionic conductivity. However, grain boundary contributions lower this value by two orders of magnitude. Herein, we present a composite of silica-based glass and perovskite which results in an amorphous composite having denser microstructure and better stability than the LLTO itself. Also, this composite possessed no grain boundary contributions and has an increased ionic conductivity than crystalline perovskite. An alternate fabrication route further improved the conductivity of the composite electrolyte.
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