Synthesis and Ion Conductivity of Li7La3Nb2O13 Ceramics with Cubic Garnet-Type Structure

被引：5

作者：

Peng, Hongjian ^{[1
]}

Luan, Xiangfeng ^{[1
]}

Li, Ling ^{[1
]}

Zhang, Yunqiang ^{[1
]}

Zou, Yingping ^{[1
]}

机构：

[1] Cent S Univ, Sch Chem & Chem Engn, Changsha 410083, Hunan, Peoples R China

来源：

JOURNAL OF THE ELECTROCHEMICAL SOCIETY | 2017年 / 164卷 / 06期

基金：

中国国家自然科学基金;

关键词：

TRANSPORT; LI5LA3NB2O12; BATTERY; NB; BA;

D O I：

10.1149/2.1181706jes

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

In the paper, the synthesis and transport properties of the Li7La3Nb2O13 compounds by a solid state reaction are reported for the first time. The optimized conditions to synthesize the Li7La3Nb2O13 ceramics is 1175. degrees C for 24 h with 10% excess lithium salt. The refined lattice constant is 12.8207 angstrom. Qualitative phase analysis by X-ray powder diffraction patterns combined with the Rietveld method reveals garnet type compounds as major phases. Lithium ion conductivity of Li7La3Nb2O13 was studied by AC impedance method. Li7La3Nb2O13 ceramics exhibits the highest total ionic conductivity of 2.2 x 10(-5) S cm(-1) at room temperature with a motional activation energy of 0.39 eV. The SEM images of surface and cross-sections for sintered Li7La3Nb2O13 pellets are shown that their density is also very high. (C) 2017 The Electrochemical Society. All rights reserved.

引用

页码：A1192 / A1194

页数：3

共 20 条

[1] Ion transport and phase transition in Li7-xLa3(Zr2-xMx)O12 (M = Ta5+, Nb5+, x=0, 0.25) [J].

Adams, Stefan ;

Rao, Rayavarapu Prasada .

JOURNAL OF MATERIALS CHEMISTRY, 2012, 22 (04) :1426-1434

[2] Evaluation of fundamental transport properties of Li-excess garnet-type Li5+2xLa3Ta2-xYxO12 (x=0.25, 0.5 and 0.75) electrolytes using AC impedance and dielectric spectroscopy [J].

Baral, Ashok Kumar ;

Narayanan, Sumaletha ;

Ramezanipour, Farshid ;

Thangadurai, Venkataraman .

PHYSICAL CHEMISTRY CHEMICAL PHYSICS, 2014, 16 (23) :11356-11365

[3] The Li-Ion Rechargeable Battery: A Perspective [J].

Goodenough, John B. ;

Park, Kyu-Sung .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2013, 135 (04) :1167-1176

[4] Fabrication of all-solid-state battery using Li5La3Ta2O12 ceramic electrolyte [J].

Kotobuki, Masashi ;

Kanamura, Kiyoshi .

CERAMICS INTERNATIONAL, 2013, 39 (06) :6481-6487

[5] Hybrid Polymer/Garnet Electrolyte with a Small Interfacial Resistance for Lithium-Ion Batteries [J].

Li, Yutao ;

Xu, Biyi ;

Xu, Henghui ;

Duan, Huanan ;

Lu, Xujie ;

Xin, Sen ;

Zhou, Weidong ;

Xue, Leigang ;

Fu, Gengtao ;

Manthiram, Arumugam ;

Goodenough, John B. .

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 2017, 56 (03) :753-756

[6]

Murugan R., 2007, Angew. Chem, V119, P7925, DOI DOI 10.1002/ANGE.200701144

[7] Lithium ion conductivity of Li5+xBaxLa3-xTa2O12 (x=0-2) with garnet-related structure in dependence of the barium content [J].

Murugan, Ramaswamy ;

Thangadurai, Venkataraman ;

Weppner, Werner .

IONICS, 2007, 13 (04) :195-203

[8] Enhancing Li Ion Conductivity of Garnet-Type Li5La3Nb2O12 by Y- and Li-Codoping: Synthesis, Structure, Chemical Stability, and Transport Properties [J].

Narayanan, Sumaletha ;

Ramezanipour, Farshid ;

Thangadurai, Venkataraman .

JOURNAL OF PHYSICAL CHEMISTRY C, 2012, 116 (38) :20154-20162

[9] Effect of Y substitution for Nb in Li5La3Nb2O12 on Li ion conductivity of garnet-type solid electrolytes [J].

Narayanan, Sumaletha ;

Thangadurai, Venkataraman .

JOURNAL OF POWER SOURCES, 2011, 196 (19) :8085-8090

[10] Low temperature synthesis of Li5La3Nb2O12 with cubic garnet-type structure by sol-gel process [J].

Peng, Hongjian ;

Wu, Qing ;

Xiao, Lihong .

JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY, 2013, 66 (01) :175-179

← 1 2 →