Journal of Applied Electrochemistry

, Volume 44, Issue 2, pp 225–232 | Cite as

Morphology and particle growth of a two-phase Ni/Mn precursor for high-capacity Li-rich cathode materials

  • Jianhong Liu
  • Hongyu Chen
  • Jiaona Xie
  • Zhaoqin Sun
  • Ningning Wu
  • Borong WuEmail author
Research Article


A Ni/Mn composite precursor was prepared as the precursor for Li-rich cathode materials under an air-precipitation atmosphere in a continuous stirred-tank reactor (CSTR). The nucleation and growth of precursor particles were investigated during the CSTR process by monitoring particle morphology, chemical composition, and phase composition. It was found that the particle shape and chemical composition were not homogeneous in the early stages of co-precipitation and did not become so until after 4 h. Mn2+ ion oxidation was verified to occur during the entire course of precipitation by X-ray diffraction. The final precipitate was identified as a two-phase system consisting of a Ni/Mn layered double hydroxide phase and a Mn3O4 phase. Scanning electron microscopy and an N2 adsorption–desorption test revealed the porosity and surface area of the material. A Li-rich cathode material was synthesized using the final precipitate as a precursor; the electrochemical performance of this cathode material is reported in this article.


Ni/Mn composite precursor Mn2+ ions oxidation Two-phase system Li-rich cathode material 



This work was financially supported by the National High-Tech Research and Development (863) Plan of China (No. 2011AA11A230). The authors would like to thank Ms. Lin Li (CFQS, China) for ICP test discussions and Mr. Xia Weimin (Ametek. Co. Ltd, Shanghai, China) for EDS test discussions.


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Copyright information

© Springer Science+Business Media Dordrecht 2013

Authors and Affiliations

  • Jianhong Liu
    • 1
    • 2
  • Hongyu Chen
    • 2
  • Jiaona Xie
    • 2
  • Zhaoqin Sun
    • 2
  • Ningning Wu
    • 2
  • Borong Wu
    • 1
    Email author
  1. 1.School of Chemical Engineering and EnvironmentBeijing Institute of TechnologyBeijingChina
  2. 2.CITIC Guoan Mengguli Power Science and Technology Co., LtdBeijingChina

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