Mg-substituted Prussian blue as a low-strain cathode material for aqueous Fe-ion batteries

Ge Huang; Zefeng Lao; Ze He; Fangyu Xiong; Shuangshuang Tan; Meng Huang; Greta Thompson; Qinyou An; Liqiang Mai

doi:10.1039/D2CC06885K

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Mg-substituted Prussian blue as a low-strain cathode material for aqueous Fe-ion batteries†

Ge Huang,‡^a Zefeng Lao,‡^a Ze He,^ab Fangyu Xiong,^a Shuangshuang Tan,^c Meng Huang,^ad Greta Thompson,^b Qinyou An

*^ae and Liqiang Mai

*^ae

Author affiliations

* Corresponding authors

^a Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan, P. R. China
E-mail: anqinyou86@whut.edu.cn, mlq518@whut.edu.cn

^b Department of Engineering, Institute for Manufacturing, University of Cambridge, Cambridge CB3 0FS, UK

^c College of Materials Science and Engineering, Chongqing University, Chongqing 400030, China

^d Guangdong Research Center for Interfacial Engineering of Functional Materials, College of Materials Science and Engineering, Shenzhen University, Shenzhen, P. R. China

^e Hubei Longzhong Laboratory, Wuhan University of Technology (Xiangyang Demonstration Zone), Xiangyang 441000, Hubei, China

Abstract

Aqueous Fe-ion batteries (FIBs) have gradually emerged in recent years due to their inherent merits. Herein, we constructed a Mg-substituted Prussian blue analogue (MgFeHCF) as cathode for FIBs, achieving higher capacity (96 mA h g⁻¹) and better stability (70.9% capacity retention over 500 cycles). The Fe-ion storage mechanism was revealed using the in situ XRD technique and DFT calculations were employed to analyse the battery performance.

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DOI: https://doi.org/10.1039/D2CC06885K
Article type: Communication
Submitted: 13 Jan 2023
Accepted: 09 Mar 2023
First published: 09 Mar 2023

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Chem. Commun., 2023,59, 4067-4070

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Mg-substituted Prussian blue as a low-strain cathode material for aqueous Fe-ion batteries

G. Huang, Z. Lao, Z. He, F. Xiong, S. Tan, M. Huang, G. Thompson, Q. An and L. Mai, Chem. Commun., 2023, 59, 4067 DOI: 10.1039/D2CC06885K

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Chemical Communications

Mg-substituted Prussian blue as a low-strain cathode material for aqueous Fe-ion batteries†

Abstract

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Mg-substituted Prussian blue as a low-strain cathode material for aqueous Fe-ion batteries

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