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An oxalate cathode for lithium ion batteries with combined cationic and polyanionic redox

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Date
02/08/2019
Author
Yao, Wenjiao
Armstrong, A. Robert
Zhou, Xiaolong
Sougrati, Moulay-Tahar
Kidkhunthod, Pinit
Tunmee, Sarayut
Sun, Chenghua
Sattayaporn, Suchinda
Lightfoot, Philip
Ji, Bifa
Jiang, Chunlei
Wu, Nanzhong
Tang, Yongbing
Cheng, Hui-Ming
Keywords
QD Chemistry
DAS
BDC
R2C
Metadata
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Abstract
The growing demand for advanced lithium-ion batteries calls for the continued development of high-performance positive electrode materials. Polyoxyanion compounds are receiving considerable interest as alternative cathodes to conventional oxides due to their advantages in cost, safety and environmental friendliness. However, polyanionic cathodes reported so far rely heavily upon transition-metal redox reactions for lithium transfer. Here we show a polyanionic insertion material, Li2Fe(C2O4)2, in which in addition to iron redox activity, the oxalate group itself also shows redox behavior enabling reversible charge/discharge and high capacity without gas evolution. The current study gives oxalate a role as a family of cathode materials and suggests a direction for the identification and design of electrode materials with polyanionic frameworks.
Citation
Yao , W , Armstrong , A R , Zhou , X , Sougrati , M-T , Kidkhunthod , P , Tunmee , S , Sun , C , Sattayaporn , S , Lightfoot , P , Ji , B , Jiang , C , Wu , N , Tang , Y & Cheng , H-M 2019 , ' An oxalate cathode for lithium ion batteries with combined cationic and polyanionic redox ' , Nature Communications , vol. 10 , 3483 . https://doi.org/10.1038/s41467-019-11077-0
Publication
Nature Communications
Status
Peer reviewed
DOI
https://doi.org/10.1038/s41467-019-11077-0
ISSN
2041-1723
Type
Journal article
Rights
Copyright © The Author(s) 2019. Open Access. This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.
Description
Authors acknowledge financial support from the National Natural Science Foundation of China (51822210), the Australian Research Council (ARC) for its support through Discover Project (DP 140100193),Shenzhen Peacock Plan (KQJSCX20170331161244761), the Program for Guangdong Innovative and Entrepreneurial Teams (No. 2017ZT07C341), and the Development and Reform Commission of Shenzhen Municipality for the development of the “Low-Dimensional Materials and Devices” discipline.
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  • University of St Andrews Research
URL
https://www.nature.com/articles/s41467-019-11077-0#Sec16
URI
http://hdl.handle.net/10023/18256

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