钒改性锂离子电池正极材料LiFe0.5Mn0.5PO4/C 电化学性能

doi:10.3866/PKU.WHXB201228100

Abstract

Abstract: Vanadium modified LiFe_0.5Mn_0.5PO₄/C cathode materials with a nominal composition of (1-x)LiFe_0.5Mn_0.5PO₄-xLi₃V₂(PO₄)₃/C (x=0, 0.1, 0.2, 0.25, 1) were prepared by a solid-state reaction using NH4VO3 as the vanadium source. The electrochemical performance of the LiFe_0.5Mn_0.5PO₄-based compounds improved upon vanadium modification. The 0.8LiFe_0.5Mn_0.5PO₄-0.2Li₃V₂(PO₄)₃/C (LFMP-LVP/C) sample exhibited the highest discharge capacity of 141 mAh·g^-1 at 0.1C rate. X-ray diffraction analyses revealed a dual phase of the LFMP-LVP/C composite with the coexistence of an olivine-type LiFe_0.5Mn_0.5PO₄/C phase and a NASICON-type Li₃V₂(PO₄)₃ phase. Energy dispersive X-ray spectroscopy (EDS) analysis indicates a uniform distribution of Fe, Mn, V, and P in the composite. The electronic conductivity of LFMP-LVP was found to be 2.7×10^-7 S·cm^-1, which is much higher than the value (1.9×10^-8 S·cm^-1) of LiFe_0.5Mn_0.5PO₄ and similar to the value (2.3 × 10^-7 S·cm^-1) of pure Li₃V₂(PO₄)₃. Vanadium modification remarkably reduced the electrode polarization of the LFMP-LVP/C cathode during the charge-discharge procedure. This suggests that vanadium modification is an effective method to improve the electrochemical performance of olivine-type cathode materials.

Key words: Lithium-ion battery, LiFe_0.5Mn_0.5PO₄, Li₃V₂(PO₄)₃-modified, Cathode material

MSC2000:

O646

GONG Qiang, WANG Hong, LIAO Xiao-Zhen, MA Wei, HE Yu-Shi, MA Zi-Feng. Electrochemical Performance of Vanadium Modified LiFe_0.5Mn_0.5PO₄/C Cathode Materials for Lithium-Ion Batteries[J].Acta Phys. -Chim. Sin., 2012, 28(01): 100-104.

References

(1) Tarascon, J. M.; Armand, M. Nature 2008, 451, 652.

(2) Whittingham, M. S. Chem. Rev. 2004, 104, 4271.

(3) Padhi, A. K.; Nanjundaswamy, K. S.; Goodenough, J. B. J. Electrochem. Soc. 1997, 144, 1188.

(4) Delacourt, C.; Poizot, P.; Morcrette, M.; Tarascon, J. M.; Masquelier, C. Chem. Mater. 2004, 16, 93.

(5) Liao, X. Z.; Ma, Z. F.;Wang, L.; Zhang, X. M.; Jiang, Y.; He, Y. S. Electrochem. Solid-State Lett. 2004, 7, A552.
(6) Li, G. H.; Azuma, H.; Tohda, M. Electrochem. Solid-State Lett. 2002, 5, A135.
(7) Delacourt, C.; Laffont. L.; Bouchet, R.,Wurm, C.; Leriche, J. B.; Morcrette, M.; Tarascon, J. M.; Masquelier, C. J. Electrochem. Soc. 2005, 152, A913.
(8) Kim, J. K.; Shin, C. R.; Ahn, J. H.; Matic, A, Jacobsson, P. Electrochem. Commun. 2011, 13, 1105.

(9) Yonemura, M.; Yamada, A.; Takei, Y.; Sonoyama, N.; Kanno, R. J. Electrochem. Soc. 2004, 151, A1352.
(10) Yamada, A.; Kudo, Y.; Liu, K.Y. J. Electrochem. Soc. 2001, 148, A747.
(11) Zhang,Y.; Sun, C. S.; Zhou, Z. Electrochem. Commun. 2009, 11, 1183.

(12) Honma,T.; Nagamine, K.; Komatsu, T. Ceramics International 2010, 36, 1137.

(13) Hong, J.;Wang, F.;Wang, X. L.; Graetz, J. J. Power Sources 2011, 196, 3659.

(14) Oh, S. M.; Jung, H. G.; Yoon, C. S.; Myung, S. T.; Chen, Z. H.; Aminee, K.; KSun, Y. J. Power Sources 2011, 196, 6924.

(15) Burba, C. M.; Frech, R. J. Power Sources 2007, 172, 870.

(16) Jiang, T.; Pan,W. C.;Wang, J.; Bie, X. F.; Du, F.;Wei, Y. J.; Wang, C. Z.; Chen, G. Electrochim. Acta 2010, 55, 3864.

(17) Yin, S.C.; Strobel, P.S.; Grondey, H.; Nazar, L. F. Chem. Mater. 2004, 16, 1456.

(18) Wang, L.; Li, Z. C.; Xu, H. J.; Zhang, K. L. J. Phys. Chem. C 2008, 112, 308.

(19) Yang, M. R.; Ke,W. H.;Wu, S. H. J. Power Sources 2007, 165, 646.

(20) Chen, X. J.; Cao, G. S.; Zhao, X. B.; Tu, J. P.; Zhu, T. J. J. Alloy. Compd. 2008, 463, 385.

(21) Xiang, J. Y.; Tu, J. P.; Zhang, L.;Wang, X. L.; Zhou, Y.; Qiao, Y. Q.; Lu, Y. J. Power Sources 2010, 195, 8331.

(22) Zheng, J. C.; Li, X. H.;Wang, Z. X.; Niu, S. S.; Liu, D. R.;Wu, L.; Li, L. J.; Li, J. H.; Guo, H. J. J. Power Sources 2010, 195, 2935.

(23) Ma, J.; Li, B. H.; Du, H. D.; Xu, C. J.; Kang, F. Y. J. Electrochem. Soc. 2011, 158, A26.
(24) Li, G. H., Azuma, H., Tohda, M. J. Electrochem. Soc. 2002, 149, A743.
(25) Bini, M.; Ferrari, S.; Capsoni, D.; Massarotti, V. Electrochim. Acta 2011, 56, 2648.

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Electrochemical Performance of Vanadium Modified LiFe_0.5Mn_0.5PO₄/C Cathode Materials for Lithium-Ion Batteries

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Electrochemical Performance of Vanadium Modified LiFe_0.5Mn_0.5PO₄/C Cathode Materials for Lithium-Ion Batteries