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过程工程学报 ›› 2023, Vol. 23 ›› Issue (6): 799-813.DOI: 10.12034/j.issn.1009-606X.222296

• 综述 • 上一篇    下一篇

钠离子电池层状氧化物正极材料改性研究进展

李苗苗1,2， 邱祥云1*， 尹延鑫1， 张涛1， 戴作强1   

  1. 1. 青岛大学动力集成及储能系统工程技术中心，山东 青岛 266071 2. 青岛大学材料科学与工程学院，山东 青岛 266071
  • 收稿日期:2022-08-15 修回日期:2022-10-07 出版日期:2023-06-28 发布日期:2023-06-30
  • 通讯作者: 邱祥云 yunners@126.com
  • 基金资助:
    山东省重点研发计划（重大科技创新工程）

Research progress in modification of layered oxide cathode materials for sodium-ion batteries

Miaomiao LI1,2,  Xiangyun QIU1*,  Yanxin YIN1,  Tao ZHANG1,  Zuoqiang DAI1   

  1. 1. Power & Energy Storage System Research Center, Qingdao University, Qingdao, Shandong 266071, China 2. College of Materials Science and Engineering, Qingdao University, Qingdao, Shandong 266071, China
  • Received:2022-08-15 Revised:2022-10-07 Online:2023-06-28 Published:2023-06-30

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摘要： 由于储量丰富、价格低廉及安全环保等突出优点，钠离子电池(SIBs)被认为是大规模储能应用的主要候选技术之一，而正极材料的开发也决定了钠离子电池的商业化进程和最终性能。钠离子电池层状氧化物正极材料，具有比容量高、构造简单、稳定性好等优势，是最富有前景的钠电正极材料之一。但此类材料目前仍面临电化学过程的不可逆变化、空气中储存不稳定和界面稳定性较差等问题，严重制约着钠离子电池商品化进程的发展。为了解决材料所存在的这些问题，研究人员对其进行改性优化。据此，本工作综述了钠电正极材料层状氧化物离子掺杂、表面包覆、纳米结构设计、P/O混合相等改性措施所取得的成效，为钠电正极材料层状氧化物改性研究提供了基础，并对层状氧化物的后续发展趋势进行了展望。

关键词: 储能, 钠离子电池, 正极材料, 层状氧化物, 改性优化

Abstract: Sodium-ion batteries (SIBs) have been regarded as the major candidate technologies for large-scale energy storage applications due to the rich abundance of Na sources, low cost and safety. And the development of cathode materials also determines the final performances and commercialization. Layered oxide cathode materials have the advantages of high specific capacity, simple structure and good stability. It is one of the most promising sodium cathode materials at present. However, such materials are still faced with irreversible changes in the electrochemical process, unstable storage in air and poor interface stability, which seriously restricts the development of commercialization of SIBs. In order to solve these problems of materials, researchers modified and optimized them. Accordingly, the modification measures of ion doping, surface coating, nanostructure design and P/O mixing and other related modification measures of sodium electric layered oxide cathode materials, which provides a basis for the modification research of sodium electric layered oxide cathode materials are reviewed in this review. Besides, the future development trend of layered oxides is prospected.

Key words: Energy storage, Sodium-ion batteries, Cathode materials, Layered oxides, Modification and optimization