Tailored perovskite Li0.33La0.56TiO3 via an adipic acid-assisted solution process: A promising solid electrolyte for lithium batteries

被引：18

作者：

Choi, Hyun Jun ^{[1
]}

Kim, So Young ^{[1
]}

Gong, Min Kyung ^{[1
]}

Vignesh, Hari ^{[1
]}

Aravindan, Vanchiappan ^{[2
]}

Lee, Young Gi ^{[3
]}

Lee, Yun-Sung ^{[1
]}

机构：

[1] Chonnam Natl Univ, Fac Appl Chem Engn, Gwang Ju 500757, South Korea

[2] IISER, Dept Chem, Tirupati 517507, Andhra Prades, India

[3] Elect & Telecommun Res Inst, Power Control Device Res Team, Daejeon 305700, South Korea

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2017年 / 729卷

关键词：

Solid electrolyte; Ionic conductivity; Phase transition; Perovskite; Sol-gel; LI ION CONDUCTORS; CONDUCTIVITY;

D O I：

10.1016/j.jallcom.2017.09.160

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：

We prepared and optimized the ionically conducting perovskite-type Li0.33La0.56TiO3 by an adipic acid-assisted sol-gel process. A high ionic conductivity of 0.131 mS cm(-1) was obtained at an ambient temperature by adjusting the synthesis temperature, holding time, and cooling process. A dramatic improvement in the Li0.33La0.56TiO3 conductivity was noted in each step. Interestingly, a tetragonal-to-cubic structural transition was evident during the quenching process unlike in the conventional slow cooling process. An increase in the bottleneck site volume was observed that facilitated Li+ ion migration for enhanced conductivity. (C) 2017 Elsevier B.V. All rights reserved.

引用

页码：338 / 343

页数：6

共 25 条

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