Fabrication and characteristics of a new ceramic solid electrolyte LiMg2P3O10

被引：2
|
作者：
Hu, Xing [1 ]
Hu, ZhiChao [1 ]
Huang, Xinjie [1 ]
Li, Yi [1 ]
Ling, ZhiYuan [1 ]
机构：
[1] South China Univ Technol, Dept Elect Mat Sci & Engn, Guangzhou 510640, Guangdong, Peoples R China
来源：
JOURNAL OF SOLID STATE CHEMISTRY | 2019年 / 277卷
关键词：
Solid electrolyte; Ceramic; Crystal structure; IONIC-CONDUCTIVITY; LITHIUM;
D O I：
10.1016/j.jssc.2019.07.021
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
A single phase of new compound LiMg2P3O10 is obtained by a one-step solid-state reaction. According to Rietveld analysis of XRD patterns, the monoclinic crystal structure of LiMg2P3O10 consists of MgO6 octahedron chain and shared corner PO4 tetrahedron. The chain is constructed in which lithium ions are located in a channel parallel to the b axis. Lithium ions are expected to migrate along the direction of the b axis using bond valence mismatch theory. The total electrical conductivity of dense LiMg2P3O10 ceramic at room temperature is 1.04 x 10(-5) S cm(-1) using an equivalent circuit model. The LiMg2P3O10 ceramics also show a large capacitance of 0.16 mF cm(-2) at a low scan rate of 2 mV s(-1).
引用
收藏
页码：727 / 730
页数：4
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