The preparation of NASICON-type solid electrolyte lithium-ion Li1+xAlxGe0.2Ti1.8-x(PO4)3 by conventional solid-state method

2nd International Workshop on Materials Science and Mechanical Engineering

机械制造;材料科学

Shang, X.F.^1 ; Zhang, J.H.^1 ; Cheng, S.^1 ; Wang, Y.W.^1

Department of Physics, Faculty of Science, Jiangsu University, Zhenjiang, Jiangsu

212013, China^1

关键词: Crystalline structure;    Electrical conductivity;    Impurity phase;    Lithium ions;    Relative density;    Sintered pellets;    Solid electrolyte systems;    Solid state method;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/504/1/012045/pdf
DOI  :  10.1088/1757-899X/504/1/012045

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

NASICON-type lithium-ion conducting solid electrolyte for Li1+xAlxGe0.2Ti1.8-x(PO4)3 were prepared with solid-state method at 900 C for 7 h. In this paper, we have studied the property of Li1+xAlxGe0.2Ti1.8-x(PO4)3 solid electrolyte systems with various numbers of Al replaced Ti. The highest total electrical conductivity of the sintered pellets for Li1.45Al0.45Ge0.2Ti1.35(PO4)3 at 25 C was 1.010-3 S/cm, which has NASICON-type crystalline structure without impurity phase. And the sintered pellet as x=0.45 in Li1+xAlxGe0.2Ti1.8-x(PO4)3 systems also has highest relative density of 95.6% and highest three-point strength of 90 Nmm-2, respectively.