Fast lithium ionic conductivity observed in LiI-MoS2 composite
作者:Liu, ZX (Liu, Zhixiang)[ 1 ] ; Zhang, Y (Zhang, Yao)[ 1 ] ; Hao, JP (Hao, Jipeng)[ 1 ] ; Zhu, YF (Zhu, Yunfeng)[ 2 ] ; Guo, XL (Guo, Xinli)[ 1 ] ; Li, LQ (Li, Liquan)[ 2 ] ; Sly, G (Sly, Gunnar)[ 3 ] ; Wang, H (Wang, Hui)[ 4,5 ]
INORGANIC CHEMISTRY COMMUNICATIONS
卷: 112
文献号: 107761
DOI: 10.1016/j.inoche.2019.107761
出版年: FEB 2020
文献类型:Article
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摘要
The enhancement of lithium ion conductivity is observed in the composite solid electrolyte LiI-MoS2, which was synthesized by ball milling of the mixture of LiI and MoS2. The composite electrolyte shows an ionic conductivity as high as 7.1 x 10(-5) S cm(-1) at room temperature which is nearly three orders of magnitude higher than the pristine LiI and can be ascribed to the formation of the amorphous interface between the two phases. In addition, the composite electrolyte LiI-MoS2 exhibits a wide apparent electrochemical stability window of -1 to 5 V. X-ray diffraction measurements on the composite inform that original phases are well maintained after ball milling process. Transmission electron microscopy (TEM) and field emission scanning electron microscopy (FE-SEM) reveal the homogeneous distribution of LiI over the surface of MoS2 and the favorable interface for Li-ion migration between the two phases. Our work proposes a novel strategy to design solid electrolytes with high Li-ion conductive, and also provides some possibility for two-dimensional materials to be applied in superior solid electrolytes.
关键词
作者关键词:Solid electrolyte; LiI; Interface; Ionic mobility
KeyWords Plus:BATTERIES; ELECTROLYTES; CONDUCTORS; DYNAMICS
作者信息
通讯作者地址: Zhang, Y (通讯作者)
显示更多Southeast Univ, Jiangsu Key Lab Adv Metall Mat, Sch Mat Sci & Engn, Nanjing 211189, Peoples R China.
地址:
显示更多[ 1 ] Southeast Univ, Jiangsu Key Lab Adv Metall Mat, Sch Mat Sci & Engn, Nanjing 211189, Peoples R China
显示更多[ 2 ] Nanjing Tech Univ, Coll Mat Sci & Engn, 5 Xinmofan Rd, Nanjing 210009, Peoples R China
显示更多[ 3 ] Washington State Univ, VCEA, Pullman, WA 99164 USA
显示更多[ 4 ] South China Univ Technol, Sch Mat Sci & Engn, Guangzhou 510641, Guangdong, Peoples R China
显示更多[ 5 ] South China Univ Technol, Guangdong Prov Key Lab Adv Energy Storage Mat, Guangzhou 510641, Guangdong, Peoples R China
电子邮件地址:zhangyao@seu.edu.cn
基金资助致谢
基金资助机构显示详情授权号
Jiangsu Key Laboratory for Advanced Metallic Materials
BM2007204
Six Talent Peaks Project in Jiangsu Province
2015-XNY-002
Fundamental Research Funds for the Central Universities
3212008101
Open Fund of the Guangdong Provincial Key Laboratory of Advance Energy Storage Materials
AESM201701
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出版商
ELSEVIER, RADARWEG 29, 1043 NX AMSTERDAM, NETHERLANDS
期刊信息
Impact Factor (影响因子): Journal Citation Reports
类别 / 分类
研究方向:Chemistry
Web of Science 类别:Chemistry, Inorganic & Nuclear