Synthesis and Lithium Storage Properties of Spinel (Al0.2Mn0.2Co0.2Ni0.2Zn0.2)3O4 High-Entropy Oxide

Jin, Changqing; Yuan, Mingyu; Tian, Dengyu; Jian, Jiaying; Wei, Yongxing; Nan, Ruihua; Yang, Zhong; Ding, Qingping

doi:10.3390/inorganics14010001

Synthesis and Lithium Storage Properties of Spinel (Al_0.2Mn_0.2Co_0.2Ni_0.2Zn_0.2)₃O₄ High-Entropy Oxide

Journal Article · Thu Dec 18 00:00:00 EST 2025 · Inorganics

DOI:https://doi.org/10.3390/inorganics14010001· OSTI ID:3009275

^[1]; Yuan, Mingyu ^[2]; Tian, Dengyu ^[1]; Jian, Jiaying ^[1]; ^[1]; Nan, Ruihua ^[1]; Yang, Zhong ^[1]; ^[3]

Xi'an Univ. of Technology, Xi'an, Shaanxi (China)
Xi'an Univ. of Technology, Xi'an, Shaanxi (China); Datang Environment Industry Group Co., Ltd., Beijing (China)
Ames Lab., and Iowa State Univ., Ames, IA (United States)

High-entropy oxides (HEOs) have garnered significant interest as next-generation anode materials for lithium-ion batteries (LIBs) due to their high theoretical specific capacity and excellent structural stability. This study successfully synthesized spinel-structured (Al_0.2Mn_0.2Co_0.2Ni_0.2Zn_0.2)₃O₄ HEO via a sol–gel method. The material was characterized by XRD, Raman and TEM, confirming a homogeneous single-phase spinel structure, with uniformly distributed elements-a hallmark of HEOs. Electrochemical tests demonstrated a stable cycling performance (438 mAh g⁻¹ at 100 mA g⁻¹ after 100 cycles and 350 mAh g⁻¹ at 1 A g⁻¹ after 1000 cycles) and rate capacity of 159 mAh g⁻¹ at 2 A g⁻¹, The remarkable long-term cyclability and good rate capability highlight the potential of this HEO for practical applications in durable, high-power lithium-ion batteries. This work underscores the advantage of incorporating structurally stabilizing elements in HEOs for advanced energy storage.

View Accepted Manuscript (DOE)

Research Organization:: Ames Laboratory (AMES), Ames, IA (United States)

Sponsoring Organization:: National Natural Science Foundation of China; USDOE Office of Science (SC), Basic Energy Sciences (BES). Materials Sciences & Engineering Division (MSE)

Grant/Contract Number:: AC02-07CH11358

OSTI ID:: 3009275

Journal Information:: Inorganics, Journal Name: Inorganics Journal Issue: 1 Vol. 14; ISSN 2304-6740

Publisher:: MDPICopyright Statement

Country of Publication:: United States

Language:: English

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