Improving the Electrochemical Performance of the Li4Ti5O12 Electrode in a Rechargeable Magnesium Battery by Lithium-Magnesium Co-Intercalation

Rechargeable magnesium batteries have attracted recent research attention because of abundant raw materials and their relatively low‐price and high‐safety characteristics. However, the sluggish kinetics of the intercalated Mg2+ ions in the electrode materials originates from the high polarizing abil...

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Published inAngewandte Chemie (International ed.) Vol. 54; no. 19; pp. 5757 - 5761
Main Authors Wu, Na, Yang, Zhen-Zhong, Yao, Hu-Rong, Yin, Ya-Xia, Gu, Lin, Guo, Yu-Guo
Format Journal Article
LanguageEnglish
Published Weinheim WILEY-VCH Verlag 04.05.2015
WILEY‐VCH Verlag
Wiley Subscription Services, Inc
EditionInternational ed. in English
Subjects
batteries
electrochemical energy storage
electrode materials
Electrodes
green chemistry
Magnesium
nanomaterials
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Summary:Rechargeable magnesium batteries have attracted recent research attention because of abundant raw materials and their relatively low‐price and high‐safety characteristics. However, the sluggish kinetics of the intercalated Mg2+ ions in the electrode materials originates from the high polarizing ability of the Mg2+ ion and hinders its electrochemical properties. Here we report a facile approach to improve the electrochemical energy storage capability of the Li4Ti5O12 electrode in a Mg battery system by the synergy between Mg2+ and Li+ ions. By tuning the hybrid electrolyte of Mg2+ and Li+ ions, both the reversible capacity and the kinetic properties of large Li4Ti5O12 nanoparticles attain remarkable improvement. Synergy between Mg2+ and Li+ ions: By controlling the collaborative electrochemistry of magnesium and lithium cations, Li4Ti5O12 electrodes (LTO; see picture) close to sub‐micron size gain extraordinary electrochemical energy storage capability. The electrodes show improved kinetics in rechargeable magnesium batteries.
Bibliography:ark:/67375/WNG-1NK4CG9Z-L
ArticleID:ANIE201501005
This work was supported by the National Natural Science Foundation of China (grant numbers 51225204, 21303222, and 21127901), the National Basic Research Program of China (grant numbers 2011CB935700 and 2012CB932900), and the "Strategic Priority Research Program" of the Chinese Academy of Sciences (grant number XDA09010000).
istex:CD7E29F44284B1B8029883CEEE6B58B81C427D39
National Basic Research Program of China - No. 2011CB935700; No. 2012CB932900
National Natural Science Foundation of China - No. 51225204; No. 21303222; No. 21127901
Chinese Academy of Sciences - No. XDA09010000
This work was supported by the National Natural Science Foundation of China (grant numbers 51225204, 21303222, and 21127901), the National Basic Research Program of China (grant numbers 2011CB935700 and 2012CB932900), and the “Strategic Priority Research Program” of the Chinese Academy of Sciences (grant number XDA09010000).
ISSN:1433-7851
1521-3773
DOI:10.1002/anie.201501005