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Research Article | Open Access

Synergetic effect of lattice distortion and oxygen vacancies on high-rate lithium-ion storage in high-entropy perovskite oxides

Yanggang JiaaShijie ChenaXia ShaoaJie ChenaDao-Lai FangaSaisai LiaAiqin Maoa,b( )Canhua Lic( )
School of Materials Science and Engineering, Anhui University of Technology, Ma’anshan 243032, China
Key Laboratory of Green Fabrication and Surface Technology of Advanced Metal Materials, Ministry of Education, Anhui University of Technology, Ma’anshan 243002, China
School of Metallurgical Engineering, Anhui University of Technology, Ma’anshan 243032, China
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Graphical Abstract


High-entropy oxides (HEOs) have gained great attention as an emerging kind of high-performance anode materials for lithium-ion batteries (LIBs) due to the entropy stabilization and multi-principal synergistic effect. Herein, the porous perovskite-type RE(Co0.2Cr0.2Fe0.2Mn0.2Ni0.2)O3 (RE (= La, Sm, and Gd) is the abbreviation of rare earth) HEOs were successfully synthesized by a solution combustion synthesis (SCS) method. Owing to the synergistic effect of lattice distortion and oxygen vacancies (OV), the Gd(Co0.2Cr0.2Fe0.2Mn0.2Ni0.2)O3 electrode exhibits superior high-rate lithium-ion storage performance and excellent cycling stability. A reversible capacity of 403 mAh·g–1 at a current rate of 0.2 A·g–1 after 500 cycles and a superior high-rate capacity of 394 mAh·g−1 even at 1.0 A·g–1 after 500 cycles are achieved. Meanwhile, the Gd(Co0.2Cr0.2Fe0.2Mn0.2Ni0.2)O3 electrode also exhibits a pronounced pseudo-capacitive behavior, contributing to an additional capacity. By adjusting and balancing the lattice distortion and oxygen vacancies of the electrode materials, the lithium-ion storage performance can be further regulated.


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Journal of Advanced Ceramics
Pages 1214-1227
Cite this article:
Jia Y, Chen S, Shao X, et al. Synergetic effect of lattice distortion and oxygen vacancies on high-rate lithium-ion storage in high-entropy perovskite oxides. Journal of Advanced Ceramics, 2023, 12(6): 1214-1227.








Web of Science






Received: 02 March 2023
Revised: 08 April 2023
Accepted: 11 April 2023
Published: 05 June 2023
© The Author(s) 2023.

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