Ionic conductivity and relaxation dynamics in amorphous Li 2.94 M 8.06/n PS 4 (M = Mg, Ca, Al) and Li 2.94 CaPS 3.94 X y0.06/y (X = I, N) solid electrolytes

被引：0

作者：

Tran, Anh-Tu ^{[1
,2
]}

Luong, Anh Thi Quynh ^{[1
,2
]}

Viet, Cao Xuan ^{[1
,2
]}

Nguyen, Huu Huy Phuc ^{[1
,2
]}

机构：

[1] Ho Chi Minh City Univ Technol HCMUT, Fac Mat Technol, 268 Ly Thuong Kiet Str,Dist 10, Ho Chi Minh City, Vietnam

[2] Vietnam Natl Univ Ho Chi Minh City, Linh Trung Ward, Ho Chi Minh City, Vietnam

来源：

CERAMICS INTERNATIONAL | 2024年 / 50卷 / 13期

关键词：

Amorphous Li 3 PS 4 solid electrolyte; Cation doping; Grain boundary; Complex impedance spectroscopy; Dielectric loss tangent; AC CONDUCTIVITY; GLASS; STABILITY; CRYSTALS; BEHAVIOR;

D O I：

10.1016/j.ceramint.2024.04.029

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Amorphous Li3PS4, Li2.94M8.06/nPS4 (M = Mg, Ca, Al) and Li2.94Ca0.03PS3.94X & Oacute;.06/y (X = N, I) solid electrolytes were successfully prepared by planetary ball-milling method. Their structure was investigated using XRD and Raman spectroscopy. The data obtained from complex impedance spectroscopy was analyzed to study the ionic conductivity and relaxation dynamics in the prepared samples. The data was interpreted using conductivity isotherms, electrical modulus and dielectric loss tangent. Among the samples, Li2.94Al0.02PS4 exhibited highest ionic conductivity at 25 degrees C, which was about 6.6 x 10-4 Scm- 1. Electrical modulus and dielectric loss tangent analysis suggested that grain boundary polarization and ionic conductivity increased with multivalence cation doping.

引用

页码：23070 / 23075

页数：6

共 33 条

[1] AC conductivity and dielectric relaxation in V2O5-P2O5-B2O3 glasses [J].