The preparation and conductivity properties of Li0.5La0.5TiO3/inactive second phase composites

被引：32

作者：

Deng, Yuan ^{[1
]}

Shang, Sui-Jun ^{[1
]}

Mei, Ao ^{[2
]}

Lin, Yuan-Hua ^{[2
]}

Liu, Li-Yu ^{[1
]}

Nan, Ce-Wen ^{[2
]}

机构：

[1] BeiHang Univ, Sch Mat Sci & Engn, Beijing 100083, Peoples R China

[2] Tsinghua Univ, Dept Mat Sci & Engn, Beijing 100084, Peoples R China

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2009年 / 472卷 / 1-2期

基金：

中国国家自然科学基金;

关键词：

Solid-state reaction; Solid-state electrolyte; Lithium lanthanum titanate; Inactive second phase; LITHIUM IONIC-CONDUCTIVITY; ALUMINA;

D O I：

10.1016/j.jallcom.2008.04.085

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：

The solid electrolyte Li0.5La0.5TiO3 (LLTO) with high lithium ion conductivity was prepared by the conventional solid-state reaction method, and those LLTO powders were mixed with inactive second phase (Al2O3, MgO, SiO2) to give composites. The microstructure and conductivity properties of the composite are investigated by using X-ray diffraction, scanning electron microscope and AC impedance method. Those prepared LLTO is cubic crystal with superstructure. All conductivities of LLTO-based composites decrease with the addition of Al2O3 or MgO, but the grain boundary conductivity increases with the addition of SiO2. (C) 2008 Elsevier B.V. All rights reserved.

引用

页码：456 / 460

页数：5

共 12 条

[11] Structure characteristics and lithium ionic conductivity of La(0.57-2x/3)SrxLi0.3TiO3 perovskites [J].

Wang, GX ;

Yao, P ;

Bradhurst, DH ;

Dou, SX ;

Liu, HK .

JOURNAL OF MATERIALS SCIENCE, 2000, 35 (17) :4289-4291

[12] Nano-structured Li-ionic conductive composite solid electrolyte synthesized by using mesoporous SiO2 [J].

Yamada, H ;

Moriguchi, I ;

Kudo, T .

SOLID STATE IONICS, 2005, 176 (9-10) :945-953

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