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Research Article | Open Access

Zn0.5Co0.5Mn0.5Fe0.5Al0.5Mg0.5O4 high-entropy oxide with high capacity and ultra-long life for Li-ion battery anodes

Shun LIaZhijian PENGb( )Xiuli FUa( )
State Key Laboratory of Information Photonics and Optical Communications, School of Integrated Circuits, Beijing University of Posts and Telecommunications, Beijing 100876, China
School of Science, China University of Geosciences, Beijing 100083, China
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Graphical Abstract


Owing to the robust Li-ion storage properties induced by entropy stabilization effect, transition metal (TM)-based high-entropy oxides (HEOs) are promising electrode materials for high-performance Li-ion batteries (LIBs). In this study, a six-component Zn0.5Co0.5Mn0.5Fe0.5Al0.5Mg0.5O4 spinel-structured HEO (denoted as 6M-HEO, where M = Zn, Co, Mn, Fe, Al, and Mg) was synthesized using a facile coprecipitation method. When used as an anode of the LIBs, its stable high-entropy nanostructures exhibit high specific capacity (290 mAh·g−1 at a current density of 2 A·g−1), ultra-long cycling stability (maintained 81% of the initial capacity after 5000 cycles), and outstanding rate performance. Such excellent performance can be attributed to two factors. Firstly, its high-entropy structure can reduce the stress caused by intercalation and avoid volume expansion of the HEO nanostructures. As a result, the cyclic stability was significantly enhanced. Secondly, owing to the unique element selection in this study, four active elements (Zn, Co, Mn, and Fe) were incorporated in inactive MgO and Al2O3 matrice after the first discharge process, which would allow such high-entropy materials to withstand the rapid shuttle of Li ions.


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Journal of Advanced Ceramics
Pages 59-71
Cite this article:
LI S, PENG Z, FU X. Zn0.5Co0.5Mn0.5Fe0.5Al0.5Mg0.5O4 high-entropy oxide with high capacity and ultra-long life for Li-ion battery anodes. Journal of Advanced Ceramics, 2023, 12(1): 59-71.








Web of Science






Received: 21 July 2022
Revised: 03 September 2022
Accepted: 23 September 2022
Published: 02 December 2022
© The Author(s) 2022.

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