Optimizing Li+ conductivity in a garnet framework

被引：598

作者：

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

Han, Jian-Tao ^{[1
,3
]}

Wang, Chang-An ^{[2
]}

Xie, Hui ^{[1
,3
]}

Goodenough, John B. ^{[1
,3
]}

机构：

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

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

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

来源：

JOURNAL OF MATERIALS CHEMISTRY | 2012年 / 22卷 / 30期

关键词：

LITHIUM ION CONDUCTION; LI7LA3ZR2O12; TRANSPORT; BATTERIES;

D O I：

10.1039/c2jm31413d

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 garnet-related oxides with the general formula Li7-xLa3Zr2-xTaxO12 (0 < x < 1) were prepared by conventional solid-state reaction. X-ray diffraction (XRD), neutron diffraction and AC impedance were used to determine phase formation and the lithium-ion conductivity. The lattice parameter of Li7-xLa3Zr2-xTaxO12 decreased linearly with increasing x. Optimum Li-ion conductivity in the Li-ion garnets Li7-xLa3Zr2-xTaxO12 is found in the range 0.4 <= x <= 0.6 for samples fired at 1140 degrees C in an alumina crucible. A room-temperature sigma(Li) approximate to 1.0 x 10 (3) S cm (1) for x = 0.6 with an activation energy of 0.35 eV in the temperature range of 298-430 K makes this Li-ion solid electrolyte attractive for a new family of Li-ion rechargeable batteries.

引用

页码：15357 / 15361

页数：5

共 17 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] The structure of lithium garnets:: cation disorder and clustering in a new family of fast Li+ conductors [J].

Cussen, EJ .

CHEMICAL COMMUNICATIONS, 2006, (04) :412-413

[3] Instability of the Lithium Garnet Li7La3Sn2O12: Li+/H+ Exchange and Structural Study [J].

Galven, Cyrille ;

Fourquet, Jean-Louis ;

Crosnier-Lopez, Marie-Pierre ;

Le Berre, Francoise .

CHEMISTRY OF MATERIALS, 2011, 23 (07) :1892-1900

[4] Challenges for Rechargeable Li Batteries [J].

Goodenough, John B. ;

Kim, Youngsik .

CHEMISTRY OF MATERIALS, 2010, 22 (03) :587-603

[5] Fabrication of all-solid-state lithium battery with lithium metal anode using Al2O3-added Li7La3Zr2O12 solid electrolyte [J].

Kotobuki, Masashi ;

Kanamura, Kiyoshi ;

Sato, Yosuke ;

Yoshida, Toshihiro .

JOURNAL OF POWER SOURCES, 2011, 196 (18) :7750-7754

[6] High lithium ion conduction in garnet-type Li6La3ZrTaO12 [J].

Li, Yutao ;

Wang, Chang-An ;

Xie, Hui ;

Cheng, Jinguang ;

Goodenough, John B. .

ELECTROCHEMISTRY COMMUNICATIONS, 2011, 13 (12) :1289-1292

[7] Aqueous Cathode for Next-Generation Alkali-Ion Batteries [J].

Lu, Yuhao ;

Goodenough, John B. ;

Kim, Youngsik .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2011, 133 (15) :5756-5759

[8] Structure and lithium ion conductivity of garnet-like Li5La3Sb2O12 and Li6SrLa2Sb2O12 [J].

Murugan, Ramaswamy ;

Weppner, Werner ;

Schmid-Beurmann, Peter ;

Thangadurai, Venkataraman .

MATERIALS RESEARCH BULLETIN, 2008, 43 (10) :2579-2591

[9] Structure and lithium ion conductivity of bismuth containing lithium garnets Li5La3Bi2O12 and Li6SrLa2Bi2O12 [J].

Murugan, Ramaswamy ;

Weppner, Werner ;

Schmid-Beurmann, Peter ;

Thangadurai, Venkataraman .

MATERIALS SCIENCE AND ENGINEERING B-SOLID STATE MATERIALS FOR ADVANCED TECHNOLOGY, 2007, 143 (1-3) :14-20

[10] Fast lithium ion conduction in garnet-type Li7La3Zr2O12 [J].

Murugan, Ramaswamy ;

Thangadurai, Venkataraman ;

Weppner, Werner .

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 2007, 46 (41) :7778-7781

← 1 2 →