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Ionics

, Volume 25, Issue 11, pp 5269–5276 | Cite as

Blending of LiFePO4/C microparticles with different sizes and its effect on the electrochemical performance of LiFePO4/C-based batteries

  • Lizhi WenEmail author
  • Xiaoyan Wang
  • Xiaoming Liu
  • Jiachen Sun
  • Liwei An
  • Xin Ren
  • Zhenfei Li
  • Guangchuan LiangEmail author
  • Shaozhong Jiang
Original Paper
  • 42 Downloads

Abstract

Blended spherical cathodes of lithium iron phosphate with different morphology were prepared using a physical mixing method. The lithium iron phosphate spherical material with high tapped density and non-spherical lithium iron phosphate material with good processing properties were compounded in different proportions. The processability and electrochemical properties of blended spherical cathodes were systematically investigated. The characterization results suggest that the blended spherical cathode material not only exerts the complementary advantages of the spherical and non-spherical material, but also produces a synergistic effect, which improves the processing property of the spherical material. This unique property reduces the internal resistance of the contact between the particles, thereby reducing the internal resistance of battery and improving the overall performance of battery.

Keywords

Blended spherical cathodes Lithium-ion battery Internal resistance Electrochemical performance 

Notes

Funding information

This work received financial support from the Natural Science Foundation of Tianjin (grant number 18JCTPJC52800).

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Copyright information

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

Authors and Affiliations

  • Lizhi Wen
    • 1
    • 2
    Email author
  • Xiaoyan Wang
    • 1
    • 3
  • Xiaoming Liu
    • 2
  • Jiachen Sun
    • 1
  • Liwei An
    • 1
  • Xin Ren
    • 1
  • Zhenfei Li
    • 1
  • Guangchuan Liang
    • 1
    • 4
    • 5
    Email author
  • Shaozhong Jiang
    • 2
  1. 1.Institute of Power Source and Ecomaterials ScienceHebei University of TechnologyTianjinChina
  2. 2.Automobile & Rail Transportation SchoolTianjin Sino-German University of Applied SciencesTianjinChina
  3. 3.Qing Gong CollegeNorth China University of Science and TechnologyTangshanChina
  4. 4.Key Laboratory of Special Functional Materials for Ecological Environment and Information (Hebei University of Technology)Ministry of EducationTianjinChina
  5. 5.Key Laboratory for New Type of Functional Materials in Hebei ProvinceHebei University of TechnologyTianjinChina

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