Advancements and Challenges of P2 NaxTMO2 (TM=Mn, Ni, Co, Fe, Cu) Cathodes for High-performance Sodium-ion Battery
Hongrui Yu （ Faculty of Materials Science and Engineering, Kunming University of Science and Technology, Kunming 650093, P. R. China ）
Chengping Li （ Faculty of Materials Science and Engineering, Kunming University of Science and Technology, Kunming 650093, P. R. China;Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology, Kunming 650093, P. R. China ）
Peng Dong （ Faculty of Materials Science and Engineering, Kunming University of Science and Technology, Kunming 650093, P. R. China ）
Jinsong Wang （ Faculty of Materials Science and Engineering, Kunming University of Science and Technology, Kunming 650093, P. R. China ）
Zhengfu Zhang （ Faculty of Materials Science and Engineering, Kunming University of Science and Technology, Kunming 650093, P. R. China ）
Yingjie Zhang （ Faculty of Materials Science and Engineering, Kunming University of Science and Technology, Kunming 650093, P. R. China ）
Jiangzhao Chen （ Kunming University of Science and Technology ）
https://doi.org/10.37155/2717-526X-0601-6Abstract
Sodium-ion batteries have become one of the most promising options for large-scale energy storage due to their abundant sodium source, high storage capacity and relatively low price. Among the key components of sodium-ion batteries, cathode materials play a pivotal role and have a significant impact on the energy density and power density of the battery. Advances in cathode materials ultimately determine the practical applications of sodium-ion batteries. The P2-type layered transition metal oxides have open Na+ diffusion channels, and Na+ can migrate through the adjacent trigonal positions, resulting in high diffusion coefficients, giving them good rate and cyclic properties. However, in P2-type layered transition metal oxide cathode materials, there are several challenges, such as structural distortion, irreversible oxygen atom redox at high voltages, and irreversible phase transitions, which seriously affect the rate and cycling performance of the batteries. As a result, these issues have hindered the widespread application of sodium-ion batteries in large-scale energy storage. It is crucial to optimize the P2-NaxTMO2 layered transition metal oxide cathode materials. This review summarizes the challenges and research progress of P2-NaxTMO2 layered transition metal oxide cathode materials for the development of P2-NaxTMO2 cathodes for high-energy sodium-ion batteries.
Keywords
Sodium-ion batteries; Cathode materials; P2-NaxTMO2; Challenges; Research progressFull Text
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Copyright © 2024 Hongrui Yu, Chengping Li, Peng Dong, Jinsong Wang, Zhengfu Zhang, Yingjie Zhang, Jiangzhao Chen
Publishing time:2024-02-26
This work is licensed under a Creative Commons Attribution 4.0 International License
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