Research progress on structural doping and surface modification for high nickel layered oxide cathode materials

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  • 1. Southwest Copper Branch of Yunnan Copper Co.,Ltd.,Kunming 650000;
    2. College of Chemistry and Environmental Science,Qujing Normal University,Qujing 655011

Received date: 2020-09-27

  Revised date: 2021-09-14

  Online published: 2021-09-30

Abstract

High-nickel lithium-ion batteries (LIBs) have attracted widespread attention from research teams and enterprises due to their high energy density and good rate performance.For example,Tesla's first application of LiNi0.8Co0.15Al0.05O2 (NCA) cathode in new energy vehicles has achieved great success.However,there are still some problems to be solved urgently in the high-nickel layered oxide materials,such as the structural stability is not good enough,and the capacity decay quickly after long-term cycling.Therefore,in order to overcome the above problems,many researchers have ion doped and surface-coated modified high-nickel layered oxide materials (mainly NCA).The current methods and methods of modifying high-nickel layered oxide materials,as well as the mechanism of improving the electrochemical performance of the materials were summarized.It provided a certain reference value for the future commercial application of high nickel layered oxide materials.

Cite this article

Yao Shiwen, Huang Wenjin, Shu Bo, Li Junli, Xia Shubiao . Research progress on structural doping and surface modification for high nickel layered oxide cathode materials[J]. New Chemical Materials, 2021 , 49(9) : 56 -61 . DOI: 10.19817/j.cnki.issn 1006-3536.2021.09.013

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