Measurement of the Electrochemical Diffusion Coefficient of Li-Ion in LiFePO4 by Constant Current Step

Zhi Feng Zeng; Hai Yan Zhang; Min Xia Liu; Yong Zhao Xu

doi:10.4028/www.scientific.net/KEM.519.128

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HomeKey Engineering MaterialsKey Engineering Materials Vol. 519Measurement of the Electrochemical Diffusion...

Measurement of the Electrochemical Diffusion Coefficient of Li-Ion in LiFePO₄ by Constant Current Step

Abstract:

The lithium ions transferring into cathode material are similar as nonequilibrium carrier in semiconductor while the cell discharges at constant current small enough. The inpouring Li-ions can be called nonequilibrium Li-ions. The electrochemical diffusion coefficient, named as D, can be worked out approximately in terms of the relationship between the concentration of nonequilibrium Li-ions and the relevant potential difference. The D was found 3.21×10-10cm²/s for LiFePO₄ doped with 10% acetylene black.

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Key Engineering Materials (Volume 519)

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128-131

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.519.128

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July 2012

Authors:

Zhi Feng Zeng, Hai Yan Zhang, Min Xia Liu, Yong Zhao Xu

Keywords:

Currant Step, Diffusion Coefficient, LiFePO₄

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References

[1] X.Y. Wang, Q.A. Zhu, Y.S. Zhang, et al.. Measurement of chemical diffusion coefficient of lithium- ion in cathode and anode materials of Li-ion batteries, Chin. J. Power Sour. 1999,23 (6) 335-338.

Google Scholar

[2] C. John Wen, B. A. Boukamp, R. A. Huggins. Thermodynamic and mass transport properties of lithium aluminide, J. Electrochem. Soc: Solid-State Sci. Technol. Vol.126, No.12 2258-2266.

DOI: 10.1149/1.2128939

Google Scholar

[3] Deiss E. Spurious potiential dependence of diffusion coefficients in Li+ insertion electrodes measured with PITT, J. Eelctrochimica Acta. 2002, 47(25) 4027-4034.

DOI: 10.1016/s0013-4686(02)00363-8

Google Scholar

[4] P. Liu, H. Q. Wu. Diffusion of lithium in carbon, J. Solid State Ionics. 1996, 92(1/2) 91-97.

Google Scholar

[5] M. Umeda, K. Dokko, Y. Fujita, M. Mohamedi, I. Uchida, J. R. Selman. Electrochemical impedance study of Li-ion insertion into mesocarbon microbead single particle electrode(part I): Graphitized carbon, J. Electrochimica Acta . 2001, 47(6): 885-890.

DOI: 10.1016/s0013-4686(01)00799-x

Google Scholar

[6] C. A. Cao, J. Q. Zhang. An introduction to electrochemical impedance spectroscopy. Science Press. 2002.

Google Scholar

[7] Q. X. Cha. Introduction to Electrode Kinetics. Science Press, 2010, pp.32-41.

Google Scholar

[8] Q. X. Cha. Introduction to Electrode Kinetics. Science Press, 2010, pp.407-409.

Google Scholar

[9] P.G. Bruce. Solid State Electrochemistry. Gambridge University Press, 1995, chapter 8.

Google Scholar