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Ni-rich LiNi0.6Co0.2Mn0.2O2 microrod with hierarchical structure synthesized by template reaction as cathode material for lithium-ion battery

  • Yue-Yue He
  • Chao-Qiong Zhu
  • Kang-Hui Hu
  • Kun ZhouEmail author
  • Qing-Yang
  • Xin-Lin Yan
  • Yin Liu
  • Er-Qiang Yang
  • Chao-Mei Yang
  • Nian-Cu Chen
Original Paper
  • 31 Downloads

Abstract

In this work, one-dimensional Ni-rich LiNi0.6Co0.2Mn0.2O2 microrod cathode material for lithium-ion battery has been firstly prepared by a simple stepwise oxalate co-precipitation method. Rod-like CoC2O4·2H2O formed in the first process is served as template for the formation of MC2O4·2H2O (M=Ni, Co, Mn) precursor, and the morphology of rod-like is maintained after the heat treatment with Li2CO3. The crystalline structure and morphology of the samples are characterized by XRD, SEM, and TEM/HRTEM. The electrochemical performances are evaluated by galvanostatic charge/discharge tests. With the beneficiation of micro/nanostructure, the LiNi0.6Co0.2Mn0.2O2 microrod cathode material shows an initial discharge capacity of 162, 134, 117, and 105 mAh g−1 at 0.1 °C, 1 °C, 3 °C, and 5 °C, respectively, and maintains 72.8% of its initial discharge capacity after 100 cycles at 1 °C.

Keywords

LiNi0.6Co0.2Mn0.2O2 Microrod Oxalate co-precipitation Cathode material 

Notes

Funding information

This work was funded by The National Natural Science Foundation of China (21805018) and the National Undergraduate Training Programs for Innovation and Entrepreneurship (201810616085).

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Copyright information

© Springer-Verlag GmbH Germany, part of Springer Nature 2019

Authors and Affiliations

  • Yue-Yue He
    • 1
  • Chao-Qiong Zhu
    • 1
  • Kang-Hui Hu
    • 1
  • Kun Zhou
    • 1
    Email author
  • Qing-Yang
    • 1
  • Xin-Lin Yan
    • 1
  • Yin Liu
    • 1
  • Er-Qiang Yang
    • 1
  • Chao-Mei Yang
    • 1
  • Nian-Cu Chen
    • 1
  1. 1.College of Materials and Chemistry & Chemical EngineeringChengdu University of TechnologyChengduPeople’s Republic of China

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