Promising high-conductivity Li1.5Al0.5Ge1.5(PO4)3 solid electrolytes: the effect of crystallization temperature on the microstructure and transport properties

被引：0
|
作者：
S. V. Pershina
A. A. Pankratov
E. G. Vovkotrub
B. D. Antonov
机构：
[1] Institute of High-Temperature Electrochemistry UB RAS,
来源：
Ionics | 2019年 / 25卷
关键词：
All-solid-state lithium batteries; Glass-ceramics; NASICON-type structure; Li; Al; Ge; (PO; ); Ionic conductivities; Raman spectroscopy;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
High-conductivity NASICON-type solid electrolytes of Li1.5Al0.5Ge1.5(PO4)3 composition have been obtained through glass crystallization. Thermal behavior of the precursor glass has been investigated; glass transition and crystallization temperatures have been determined by DSC. The influence of glass crystallization temperature (750, 800, 820, and 850 °C) on the phase composition, microstructure, molecular structure, and ionic conductivity of Li1.5Al0.5Ge1.5(PO4)3 glass-ceramics has been studied. It was found that the optimum crystallization temperature for obtaining an electrolyte with the highest conductivity (0.39 mS cm−1 at 25 °C) is 820 °C.
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页码：4713 / 4725
页数：12
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