Articles
  • Enhanced the electrochemical performances of Ni-rich LiNi0.8Co0.1Mn0.1O2 cathode by ZrO2 coating

  • Sung-Joo Joa,#, Hyun-Soo Kimb,#, Do-Yeong Hwanga, Bong-Soo Jinb, Seong-Ju Simb, Jae-Soo Shina and Seung-Hwan Leea,*

  • aDepartment of Advanced Materials Engineering, Daejeon University, Daejeon 34520, Republic of Korea
    bNext-Generation Battery Research Center, Korea Electrotechnology Research Institute, Changwon, 641-120, South Korea

Abstract

ZrO2 coated Ni-rich LiNi0.8Co0.1Mn0.1O2 cathode has enhanced electrochemical performance and stability compared with the pristine. The discharge capacity of both samples have no significant difference. However, the 1.77 wt% ZrO2 coated LiNi0.8Co0.1Mn0.1O2 material delivers enhanced charge-discharge cycling (capacity retention of 97.1 % after 100 cycles at 0.5 C) while the capacity retention of pristine is 94.8 % under the same condition. Based on these, we can infer that the ZrO2 coated LiNi0.8Co0.1Mn0.1O2 material shows great cyclability, originated from suppressing undesirable side reaction and decrease effectively electrolyte decomposition reaction. Therefore, the ZrO2 coated Ni-rich LiNi0.8Co0.1Mn0.1O2 cathode can be considered as an effective strategy for long-life Li-ion batteries.


Keywords: ZrO2, LiNi0.8Co0.1Mn0.1O2, electrochemical performances

This Article

  • 2020; 21(6): 731-735

    Published on Dec 31, 2020

  • 10.36410/jcpr.2020.21.6.731
  • Received on Jul 30, 2020
  • Revised on Sep 2, 2020
  • Accepted on Oct 2, 2020

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