无机盐工业
主管:中海油天津化工研究设计院有限公司
主办:中海油天津化工研究设计院有限公司
   中海油炼油化工科学研究院(北京)有限公司
   中国化工学会无机酸碱盐专业委员会
ISSN 1006-4990 CN 12-1069/TQ

无机盐工业 ›› 2023, Vol. 55 ›› Issue (10): 1-12.doi: 10.19964/j.issn.1006-4990.2023-0296

• 综述与专论 •    下一篇

钠离子电池层状过渡金属氧化物正极材料的研究进展

彭晨熹(), 刘军()   

  1. 华南理工大学材料科学与工程学院,广东省先进储能材料重点实验室,广东 广州 510641
  • 收稿日期:2023-05-30 出版日期:2023-10-10 发布日期:2023-10-16
  • 通讯作者: 刘军(1982— ),男,教授,博士,研究方向为锂/钠离子电池、固态电池等储能材料及器件;E-mail:msjliu@scut.edu.cn
  • 作者简介:彭晨熹(2000— ),女,硕士,研究方向为钠离子电池层状氧化物正极材料;E-mail:171805106@qq.com
  • 基金资助:
    广东省自然科学基金项目(2020B0101030005)

Research progress of layered transition metal oxides cathode materials for sodium-ion batteries

PENG Chenxi(), LIU Jun()   

  1. Guangdong Provincial Key Laboratory of Advanced Energy Storage Materials,School of Materials Science andEngineering,South China University of Technology,Guangzhou 510641,China
  • Received:2023-05-30 Published:2023-10-10 Online:2023-10-16

摘要:

层状过渡金属氧化物是目前最具潜力的钠离子电池正极材料之一,因其理论容量较高且易于合成受到了广泛关注。旨在综述钠离子电池层状过渡金属氧化物正极材料的研究进展。首先简要概述了层状过渡金属氧化物材料的结构特点及目前存在的不足,介绍了P2相和O3相层状过渡金属氧化物的钠离子配位构型及传输路径;此外,针对充放电过程中存在不可逆相变、空气敏感性高、电化学性能有待提高等问题,从组分调控、结构设计及表面包覆三类改性方法入手,总结了P2、O3相层状过渡金属氧化物近几年的改性研究成果;最后,对钠离子电池层状过渡金属氧化物正极材料的产业化发展前景及潜在研究方向进行了展望。

关键词: 钠离子电池, 正极材料, 层状过渡金属氧化物, O3相, P2相

Abstract:

Layered transition metal oxides are considered as one of the most promising cathode materials for sodium-ion batteries(SIBs) due to their high theoretical capacity and ease of synthesis,which have attracted widespread attention.The purpose of this article is to review the research progress on layered transition metal oxides as cathode materials for SIBs.Firstly,a brief overview of the structural characteristics and existing issues of layered transition metal oxide cathode materials was provided.The Na+ coordination configurations and diffusion paths in terms of P2 and O3-type layered transition metal oxide cathode materials were also introduced.In addition,considering the issues of irreversible phase transition during charge/discharge process,high air sensitivity,and insufficient electrochemical performance,the recent research results of P2 and O3-type layered transition metal oxides were summarized based on three types of modification methods:component regulation,structural design,and surface coating.Finally,the future industrial development and potential research directions of layered transition metal oxide cathode materials for SIBs were prospected.

Key words: sodium-ion batteries, cathode materials, layered transition metal oxides, O3 phase, P2 phase

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