Synergistic regulation of garnet-type Ta-doped Li7La3Zr2O12 solid electrolyte by Li+ concentration and Li+ transport channel size

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成果类型：

期刊论文

作者：

Zhang, Yanhua;Deng, Jiadong*;Hu, Dongwei;Chen, Fei;Shen, Qiang;...

通讯作者：

Deng, Jiadong

作者机构：

[Zhang, Yanhua; Dong, Shijie; Hu, Dongwei] Hubei Univ Technol, Hubei Prov Key Lab Green Mat Light Ind, Wuhan 430068, Hubei, Peoples R China.

[Zhang, Yanhua] Hubei Univ Technol, Collaborat Innovat Ctr Green Light Weight Mat & P, Wuhan 430068, Hubei, Peoples R China.

[Deng, Jiadong] Wuhan Univ Technol, Sch Automot Engn, Wuhan 430070, Hubei, Peoples R China.

[Shen, Qiang; Chen, Fei; Zhang, Lianmeng] Wuhan Univ Technol, State Key Lab Adv Technol Mat Synth & Proc, Wuhan 430070, Hubei, Peoples R China.

通讯机构：

[Deng, Jiadong] W

Wuhan Univ Technol, Sch Automot Engn, Wuhan 430070, Hubei, Peoples R China.

语种：

英文

关键词：

Solid electrolytes;Li plus concentration;Li plus transport channel size;Synergistic regulation

期刊：

Electrochimica Acta

ISSN：

0013-4686

年：

2019

卷：

296

页码：

823-829

DOI：

10.1016/j.electacta.2018.11.136

基金类别：

International Science & Technology Cooperation Program of China [2016YFE0124300]; Fundamental Research Funds for the Central UniversitiesFundamental Research Funds for the Central Universities; National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [51202171]; Specialized Research Fund for the Doctoral Program of Higher Education of ChinaSpecialized Research Fund for the Doctoral Program of Higher Education (SRFDP) [20120143120004]; "111" projectMinistry of Education, China - 111 Project [B13035]

机构署名：

本校为通讯机构

院系归属：

汽车工程学院

材料复合新技术国家重点实验室

摘要：

The Li(+ )concentration and Li+ transport channel size of garnet-type solid electrolyte Li7La3Zr2O12 are the two key factors associated with the improvement of Li ionic conductivity. Through precise control of the Li+ concentration and the Li+ transport channel size by Ta-doping (Li7-XLa3Zr2O12, X = 0.2-1.0), synergistic regulation of the two factors is achieved. Results show that the optimum Li+ concentration seems to be at about 6.31 where the Li+ occupancy in LiO6 is high and the Li+ arrangement in LiO(4 )is disordering. With the Li+ concentration higher than 6.31, the occupancy in LiO4 sit...

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Synergistic regulation of garnet-type Ta-doped Li7La3Zr2O12 solid electrolyte by Li+ concentration and Li+ transport channel size

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