High lithium ion conduction in garnet-type Li6La3ZrTaO12

被引：132

作者：

Li, Yutao ^{[1
,2
,3
]}

Wang, Chang-An ^{[3
]}

Xie, Hui ^{[1
,2
]}

Cheng, Jinguang ^{[1
,2
]}

Goodenough, John B. ^{[1
,2
]}

机构：

[1] Univ Texas Austin, Mat Res Program, Austin, TX 78712 USA

[2] Univ Texas Austin, Texas Mat Inst, Austin, TX 78712 USA

[3] Tsinghua Univ, Dept Mat Sci & Engn, State Key Lab New Ceram & Fine Proc, Beijing 100084, Peoples R China

来源：

ELECTROCHEMISTRY COMMUNICATIONS | 2011年 / 13卷 / 12期

关键词：

Li+-ion solid electrolyte; Li garnet; Lithium ion batteries;

D O I：

10.1016/j.elecom.2011.07.008

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

The garnet-related oxide with general formula Li6La3ZrTaO12 was prepared by conventional solid-state reaction. X-ray diffraction (XRD) and AC impedance were used to determine phase formation and the lithium-ion conductivity. The structures were refined by the Rietveld method from powder X-ray diffraction data. Li6La3ZrTaO12 is cubic and crystallizes in the space group Ia-3d with room-temperature lattice parameter a = 12.8873 angstrom. The bulk and total lithium ion conductivities of Li6La3ZrTaO12 at 25 degrees C were 2.5 x 10(-4) S cm(-1) and 1.8 x 10(-4) S cm(-1), respectively; the activation energy was about 0.42 eV in the temperature range 298-450 K. (C) 2011 Elsevier B.V. All rights reserved.

引用

页码：1289 / 1292

页数：4

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