Erythrocyte‐Like Single Crystal α‐Fe 2 O 3 Anode Synthesized by Facile One‐Step Hydrothermal Method for Lithium‐Ion Battery

• Published in: ChemElectroChem Vol. 9; no. 21
• Main Authors: Wu, Jiakui, Zhang, Penglin, Chen, Xiujuan, Wang, Youliang, Zhang, Quanwen, Yu, Shurong, Wu, Mingliang
• Format: Journal Article
• Language: English
• Published: 15.11.2022
• ISSN: 2196-0216; 2196-0216
• DOI: 10.1002/celc.202200863

Abstract Transition metal oxides Fe 2 O 3 as lithium‐ion battery anode has aroused intense interest as a result of its high capacity (1007 mA h g −1 ). Nevertheless, the significant volume expansion during the cycling procession causes its capacity to decay sharply as the anode of lithium‐ion battery. The size and morphology of materials are important factors improving the stability of electrode materials. However, most of the excellent morphology design needs complex processes. The single‐crystalline erythrocyte‐like α‐Fe 2 O 3 nanoparticles are synthesized by one‐step hydrothermal method to improve the electrochemical properties of the α‐Fe 2 O 3 anode, and the Li + storage kinetics of the erythrocyte‐like α‐Fe 2 O 3 anode are investigated. As a lithium‐ion battery anode material, the erythrocyte‐like α‐Fe 2 O 3 anode exhibits an eminent reversible capacity of 1200.2 mA h g −1 at 0.1 C after 100 cycles. In comparison to raw α‐Fe 2 O 3 , the erythrocyte‐like α‐Fe 2 O 3 performs with a better rate property. The special morphological design can effectively improve the stability of α‐Fe 2 O 3 electrode materials.