Articles
  • Significantly improving electrochemical performances of TiO2 coated LiNi0.8Co0.1Mn0.1O2 cathode

  • Jae-Soo Shin and Seung-Hwan Lee*

  • Department of Advanced Materials Engineering, Daejeon University, Daejeon 34520, 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 Ti-coated Ni-rich LiNi0.8Co0.1Mn0.1O2 cathode and microstructure and electrochemical performances for high-energy lithium-ion battery are investigated. The TiO2-coated LiNi0.8Co0.1Mn0.1O2 delivers excellent cation mixing and there is no big difference in morphology between pristine and TiO2 coated LiNi0.8Co0.1Mn0.1O2. The TiO2-coated LiNi0.8Co0.1Mn0.1O2 has higher electrochemical performances (initial discharge capacity : 201.3 mAh g-1, rate capability : 90.5% at 4.0 C and cyclability : 79.4% after 100 cycles). It can be explained by the positive role of TiO2 layer on the surface of LiNi0.8Co0.1Mn0.1O2


Keywords: Ti-coated Ni-rich layered LiNi0.8Co0.1Mn0.1O2, microstructure, cation mixing, higher electrochemical performances, TiO2 layer

This Article

  • 2021; 22(3): 329-332

    Published on Jun 30, 2021

  • 10.36410/jcpr.2021.22.3.329
  • Received on Oct 13, 2020
  • Revised on Jan 26, 2021
  • Accepted on Feb 5, 2021

Correspondence to

  • Seung-Hwan Lee

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

  • E-mail: shlee@dju.kr