Energy Storage Science and Technology ›› 2020, Vol. 9 ›› Issue (5): 1340-1349.doi: 10.19799/j.cnki.2095-4239.2020.0130

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Development of layered cathode materials for sodium-ion batteries

Xiaohui ZHU(), Yuhang ZHUANG, Yang ZHAO, Mingzhu NI, Jing XU, Hui XIA()   

  1. School of Materials Science and Engineering, Nanjing University of Science and Technology, Nanjing 210094, Jiangsu, China
  • Received:2020-04-02 Revised:2020-04-18 Online:2020-09-05 Published:2020-09-08
  • Contact: Hui XIA E-mail:z214321372@126.com;xiahui@njust.edu.cn

Abstract:

Na-ion batteries are regarded as a potential new rechargeable battery technology to replace lithium-ion batteries for large-scale energy storage applications in the future due to the rich abundance of Na sources and their low cost. Cathode materials, an important component of Na-ion batteries, determine the electrochemical performance of Na-ion batteries. Due to the large ionic radius of Na+ ions, developing cathode materials with stable structures and fast Na+ ion diffusion is still a significant challenge. Recently, many layered materials have been explored as cathodes with promising electrochemical performances, exhibiting great potential for application in Na-ion batteries. In this review, recently reported layered cathode materials are summarized and their Na storage mechanisms are carefully analyzed and discussed. Finally, perspectives on the future development of layered cathodes and their potential applications in Na-ion batteries are provided.

Key words: sodium-ion batteries, cathode material, layered transition metal oxides, Mn-based systems

CLC Number: