Journal of Inorganic Materials ›› 2020, Vol. 35 ›› Issue (9): 972-986.DOI: 10.15541/jim20190568

Special Issue: 能源材料论文精选(一):锂离子电池

• REVIEW • Previous Articles     Next Articles

Research Progress on Coating and Doping Modification of Nickel Rich Ternary Cathode Materials

BAI Xiangtao1(),BAN Liqing2,ZHUANG Weidong2   

  1. 1. China Automotive Battery Research Institute Co., Ltd, Beijing 101407, China
    2. General Research Institute for Nonferrous Metals, Beijing 100088, China
  • Received:2019-11-07 Revised:2020-01-14 Published:2020-09-20 Online:2020-03-06
  • Supported by:
    The National Key R&D Program of China-New Energy Special Projec(2016YFB0100400)

Abstract:

In recent years, the development of new energy vehicles industry is accelerating. Lithium nickel cobalt manganese/aluminum oxide ternary cathode materials (NCM/NCA), especially with the nickel content ≥50%, has aroused great interest in both academia and industry. This is mainly due to the fact that the aggregative parameters of performance and cost of NCM/NCA are superior to those of traditional cathode materials, such as LiCoO2 and LiFePO4. However, the application of NCM/NCA is affected by a number of drawbacks, including poor safety and insufficient cycle stability and so on, which are mainly attributed to its crystal and surface structure. Researchers have carried out various efforts to solve these problems and further improve the performance of NCM/NCA. Some remarkable results have been achieved in the past few years. In this review, the latest research progress on coating and doping of Ni-rich ternary cathode materials is summarized from the view on the mechanism of structural and electrochemical improvement of NCM/NCA. Finally, the perspective for the development of NCM/NCA cathode materials is also prospected.

Key words: lithium nickel cobalt manganese oxide, coating, doping, mechanism

CLC Number: