Articles
  • Improving electrochemical characteristics of Ni-rich cathode materials by Na doping

  • Do-Young Hwang and Seung-Hwan Lee*

  • Department of Advanced Materials Engineering, Daejeon University, Daejeon 34520, Republic of Korea

  • This article is an open access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/4.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

In this paper, we successfully synthesized the Na-doped Ni-rich LiNi0.8Co0.1Mn0.1O2 cathode by a general co-precipitation. We investigated the influence of Na doping in terms of structural characteristics and electrochemical performances for practical usage of lithium-ion batteries. Particularly, the Na-doped Ni-rich LiNi0.8Co0.1Mn0.1O2 cathode shows a significant improvement in cyclability of 72.7 % after 80 cycles with no morphology change, compared to the pristine NCM. Therefore, we can conclude that Na-doped Ni-rich LiNi0.8Co0.1Mn0.1O2 can be considered as an effective strategy for state-of-the-art lithium-ion batteries


Keywords: Ni-rich layered structure, Na-doped LiNi0.8Co0.1Mn0.1O2, enhanced electrochemical performances, superior structural stability, next-generation Li-ion batteries

This Article

  • 2021; 22(6): 615-619

    Published on Dec 31, 2021

  • 10.36410/jcpr.2021.22.6.615
  • Received on Mar 3, 2021
  • Revised on May 14, 2021
  • Accepted on Jun 3, 2021

Correspondence to

  • Seung-Hwan Lee

  • Department of Advanced Materials Engineering, Daejeon University, Daejeon 34520, Republic of Korea
    Tel : +82-42-280-2414

  • E-mail: shlee@dju.kr