Influence of LiBO2 addition on the microstructure and lithium -ion conductivity of Li1+xAlxTi2-x(PO4)3(x=0.3) ceramic electrolyte

被引：70

作者：

Bai, Hainan ^{[1
,2
]}

Hu, Jiulin ^{[1
,2
]}

Li, Xiaoguang ^{[1
]}

Duan, Yusen ^{[1
]}

Shao, Feng ^{[1
,2
]}

Kozawa, Takahiro ^{[3
]}

Naito, Makio ^{[3
]}

Zhang, Jingxian ^{[1
]}

机构：

[1] Chinese Acad Sci, State Key Lab High Performance Ceram & Superfine, Shanghai Inst Ceram, Shanghai 200050, Peoples R China

[2] Univ Chinese Acad Sci, Beijing 100049, Peoples R China

[3] Osaka Univ, Joining & Welding Resarch Insititue, Osaka, Japan

来源：

CERAMICS INTERNATIONAL | 2018年 / 44卷 / 06期

基金：

中国国家自然科学基金;

关键词：

Solid-state electrolytes; LATP; Microstructure Ionic conductivity; LiBO2; SOLID-ELECTROLYTE; GLASS-CERAMICS; LI1.3AL0.3TI1.7(PO4)(3); BATTERIES; CHALLENGES; STABILITY; COMPOUND; SYSTEMS; AL;

D O I：

10.1016/j.ceramint.2018.01.058

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Concerning the safety problems of conventional Li-ion batteries with liquid electrolytes, it is crucial to develop reliable solid-state electrolytes with high ionic conductivity. Li1+xAlxTi2-x(PO4)(3) (LATP, x = 0.3) is regarded as one of the most promising solid electrolytes due to its high ionic conductivity and excellent chemical stability to humidity. Herein, a new strategy is proposed for improving the sintering behavior and enhancing the ionic conductivity of LATP by using LiBO2 as the sintering aid via liquid phase sintering. The as-prepared sample LATP with homogeneous microstructure and high relative density of 97.1% was successfully synthesized, yielding high total ionic conductivity of 3.5 x 10(-4) S cm(-1) and low activation energy of 0.39 eV at room temperature. It was found that the addition of LiB02 could effectively enhance the densification and increase the ionic conductivity of LATP electrolyte, proving an effective way to synthesis LATP ceramics by a simple and reliable route.

引用

页码：6558 / 6563

页数：6

共 35 条

[1] On the structure of Li3Ti2(PO4)3 [J].