Facilely synthesized Li4MoO5 : Understanding phase formation process and exploring lithium storage performance

时间:2020-07-07作者:浏览量:301


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