Preparation of new lithium ion composite electrolyte 3Li4SiS4-0.5La2S3 by mechanical milling

被引：4

作者：

Liu, Zhanqiang ^{[1
]}

Huang, Fuqiang ^{[1
]}

Yang, Hanhua ^{[1
]}

Wang, Yaoming ^{[1
]}

Sun, Junkang ^{[1
]}

机构：

[1] Chinese Acad Sci, Shanghai Inst Ceram, State Key Lab High Performance Ceram & Superfine, Shanghai 200050, Peoples R China

来源：

SOLID STATE SCIENCES | 2008年 / 10卷 / 10期

关键词：

Composite electrolyte; Lithium ion conductor; Mechanical milling; Sulfide;

D O I：

10.1016/j.solidstatesciences.2008.01.006

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

A new binary composite electrolyte of 3Li(4)SiS(4)-0.5La(2)S(3) was successfully prepared by mechanical milling for 10 It. In the composition, Li4SiS4 was mainly in amorphous phase, and La2S3 kept in crystal phase. The total lithium ion conductivities at 27 degrees C (sigma(27)) and 150 degrees C (sigma(150)) were calculated to be 2.77 x 10(-4) S/cm and 1.84 x 10(-2) S/cm, respectively. The corresponding activation was calculated to be 38 kJ/mol. And the electrochemical stability was found in a wide potential range of up to 5.5 V vs. Li+/Li. For comparison, quenching technique was used to prepare the sample and the results showed that it is inferior to mechanical milling. (C) 2008 Elsevier Masson SAS. All rights reserved.

引用

页码：1429 / 1433

页数：5

共 20 条

[1] Superionic solids: composite electrolyte phase - an overview [J].