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Issue
Korean Journal of Chemical Engineering,
Vol.28, No.3, 964-968, 2011
Improving electrochemical performance of LiMnPO4 by Zn doping using a facile solid state method
Wang Y, Chen Y, Cheng S, He L
Olivine structure LiMnPO4/C as cathode materials for Li-ion batteries were synthesized via a simple solidstate reaction. Improvement of the electrochemical performance of LiMnPO4/C cathode material was realized significantly by the method of doping Zn. The obtained LiMn0.95Zn0.05PO4/C electrode material was studied by the measurements of X-ray diffraction pattern, scanning electronic microscopy, electrochemical impedance spectroscopy and electrochemical performance. The results indicate that the LiMn0.95Zn0.05PO4/C materials exhibit discharge specific capacity of 140.2 mA h g.1 at 0.02 C rate and better rate capability. These excellent results are elucidated by EIS test, which showed that there was the decrease of charge transfer resistance and faster lithium-ion diffusion in LiMnPO4/C cathode materials after Zn doping.
Keywords: Lithium Manganese Phosphates; Doping; Zinc; Lithium Ion Battery; Electrochemistry
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[Cited By]
  1. Kim DH, Ryu JH, Chung JH, Eun JW, Shim KB, Cho SY, Korean Journal of Chemical Engineering, 29(4), 519, 2012
  2. Wang G, Liu R, Chen M, Kang H, Li X, Yan K, Korean Journal of Chemical Engineering, 29(8), 1094, 2012
  3. Kwak DY, Lim WG, Shin KS, Cheong IW, Lee JW, Joo J, Korean Journal of Chemical Engineering, 37(7), 1258, 2020
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