Articles
  • Investigation of Al modification as cationic dopants in Ni-rich LiNi0.91Co0.06Mn0.03O2 cathode

  • Ye-Wan Yoo and Seung-Hwan Lee*

  • Department of Materials Science and Engineering, Kangwon National University, Chuncheon 24341, 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 have successfully prepared Al-doped Ni-rich LiNi0.91Co0.06Mn0.03O2 cathodes. The structural properties and electrochemical performances are studied according to Al cationic doping. It can be confirmed that the crystallinity and cation disordering of Ni-rich LiNi0.91Co0.06Mn0.03O2 were improved by Al doping. Based on such excellent structural quality, the electrochemical performance of Al doping LiNi0.91Co0.06Mn0.03O2 was superior to that of pristine LiNi0.91Co0.06Mn0.03O2. The Al doping Ni-rich NCM has an initial discharge capacity of 209.2 mAh g-1. In addition, it shows superior rate capability by showing capacity retention of 58.5% under a high rate of 6.0 C. Therefore, it can be judged that Al doping LiNi0.91Co0.06Mn0.03O2 can be applied to next-generation cathode for long-distance and fast-charging electric vehicles


Keywords: Al-doped Ni-rich LiNi0.91Co0.06Mn0.03O2, Excellent structural quality, Next-generation cathode, Long-distance and fast-charging electric vehicles

This Article

  • 2022; 23(5): 566-569

    Published on Oct 31, 2022

  • 10.36410/jcpr.2022.23.5.566
  • Received on Sep 19, 2021
  • Revised on Dec 29, 2021
  • Accepted on Jan 10, 2022

Correspondence to

  • Seung-Hwan Lee

  • Department of Materials Science and Engineering, Kangwon National University, Chuncheon 24341, Republic of Korea
    Tel : +82-42-280-2414

  • E-mail: shlee@dju.kr