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

被引：38

作者：

Pershina, S. V. ^{[1
]}

Pankratov, A. A. ^{[1
]}

Vovkotrub, E. G. ^{[1
]}

Antonov, B. D. ^{[1
]}

机构：

[1] Inst High Temp Electrochem UB RAS, Akad Skaya,20, Ekaterinburg 620137, Russia

来源：

IONICS | 2019年 / 25卷 / 10期

基金：

俄罗斯科学基金会;

关键词：

All-solid-state lithium batteries; Glass-ceramics; NASICON-type structure; Li1.5Al0.5Ge1.5(PO4)(3); Ionic conductivities; Raman spectroscopy; LITHIUM ION CONDUCTIVITY; GLASS-CERAMICS; CONDUCTORS; TI; LOCATION; SN; HF; GE;

D O I：

10.1007/s11581-019-03021-5

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

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 degrees 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 degrees C) is 820 degrees C.

引用

页码：4713 / 4725

页数：13

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