Facilely synthesized Li4MoO5 : Understanding phase formation process and exploring lithium storage performance
作者:Zhang, K (Zhang, Ke)[ 1 ] ; Kuang, Q (Kuang, Quan)[ 1 ] ; Zeng, XX (Zeng, Xinxuan)[ 1 ] ; Wen, N (Wen, Ni)[ 1 ] ; Zhou, ZY (Zhou, Zhiyong)[ 1 ] ; Fan, QH (Fan, Qinghua)[ 1 ] ; Dong, YZ (Dong, Youzhong)[ 1 ] ; Zhao, YM (Zhao, Yanming)[ 1,2,3 ]
ELECTROCHIMICA ACTA
卷: 348
文献号: 136309
DOI: 10.1016/j.electacta.2020.136309
出版年: JUL 10 2020
文献类型:Article
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摘要
The electron-donor effect of Li can opposite the inductive effect of polyanions and lower the redox potential of transition metal, which opens a new way to discover potential anodes for Li-ion batteries (LIBs). In this study, lithium-rich molybdate Li4MoO5 is expected as a promising candidate for high-performance LIBs anodes by virtue of the electron-donor effect. Herein, monoclinic Li4MoO5 is first synthesized via a facile liquid-phase method, and its physicochemical characteristics are investigated in detail. Special attention is paid to discuss the phase formation process and reaction path of Li4MoO5. Furthermore, the synthesized Li4MoO5 shows a high capacity and good cycling stability as anode material for rechargeable LIBs. In the working voltage between 0.02 and 3 V vs. Li, it delivers an initial discharge capacity of 874 mA h g(-1), and displays a good cycling stability (90.1% capacity retention after 80 cycles) at a current density of 0.05 A g(-1). Moreover, excellent rate capability (280 mA h g(-1) at a fast charging rate of 2 A g(-1)) is also achieved for this material. Our work demonstrates that Li4MoO5 material can be considered as a potential anode for lithium ion batteries. (C) 2020 Elsevier Ltd. All rights reserved.
关键词
作者关键词:Lithium-rich molybdate; Li4MoO5; Anode material; Li-ion batteries; Electrochemical performance
KeyWords Plus:POSITIVE ELECTRODE MATERIALS; ANODE MATERIALS; ELECTROCHEMICAL PROPERTIES; HIGH-CAPACITY; OPTICAL-PROPERTIES; MOLYBDENUM OXIDE; BINARY-SYSTEM; LI2MOO4; STABILITY; MECHANISM
作者信息
通讯作者地址: Kuang, Q (通讯作者)
显示更多South China Univ Technol, Sch Phys & Optoelect, Guangzhou 510641, Guangdong, Peoples R China.
地址:
显示更多[ 1 ] South China Univ Technol, Sch Phys & Optoelect, Guangzhou 510641, Guangdong, Peoples R China
[ 2 ] South China Inst Collaborat Innovat, Dongguan 523808, Peoples R China
显示更多[ 3 ] South China Univ Technol, Guangdong Prov Key Lab Adv Energy Storage Mat, Guangzhou 510640, Peoples R China
电子邮件地址:sckq@scut.edu.cn
基金资助致谢
基金资助机构显示详情授权号
NSFC through NSFC Committee of China
51672086
China Scholarship Council
201906155026
Science and Technology Bureau of Guangdong Government
2017B030308005
Science and Technology Bureau from Dongguan Government
2019622163008
Fundamental Research Funds for the Central Universities through South China University of Technology
2018MS63
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出版商
PERGAMON-ELSEVIER SCIENCE LTD, THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
期刊信息
Impact Factor (影响因子): Journal Citation Reports
类别 / 分类
研究方向:Electrochemistry
Web of Science 类别:Electrochemistry