Electronic and Ionic Wirings Versus the Insertion Reaction Contributions to the Polarization in LiFePO4 Composite Electrodes

作者: C. Fongy , S. Jouanneau , D. Guyomard , J. C. Badot , B. Lestriez

DOI: 10.1149/1.3497353

关键词:

摘要: electrode are experimentally discriminated in this work. The electrodetotal resistance is dominated at high rate by the contribution of electronic and ionic wires, former being more importantin case electrodes with low compaction, while latter important highcompaction. A porosity 35%–40% range allows to minimize polarization. At rate, resistanceis lithium insertion into active mass follows predictions M. Gaberscek J. Jamnik

参考文章(46)
Pier Paolo Prosini, Modeling the Voltage Profile for LiFePO4 Journal of The Electrochemical Society. ,vol. 152, pp. 73- 82 ,(2005) , 10.1149/1.2006607
D. Guy, B. Lestriez, R. Bouchet, V. Gaudefroy, D. Guyomard, Tailoring the Binder of Composite Electrode for Battery Performance Optimization Electrochemical and Solid State Letters. ,vol. 8, ,(2005) , 10.1149/1.1828344
M GABERSCEK, J JAMNIK, Impact of electrochemical wiring topology on the kinetics of insertion electrodes Solid State Ionics. ,vol. 177, pp. 2647- 2651 ,(2006) , 10.1016/J.SSI.2006.02.035
N. Ravet, Y. Chouinard, J.F. Magnan, S. Besner, M. Gauthier, M. Armand, Electroactivity of natural and synthetic triphylite Journal of Power Sources. ,vol. 97, pp. 503- 507 ,(2001) , 10.1016/S0378-7753(01)00727-3
C.V. Ramana, A. Mauger, F. Gendron, C.M. Julien, K. Zaghib, Study of the Li-insertion/extraction process in LiFePO4/FePO4 Journal of Power Sources. ,vol. 187, pp. 555- 564 ,(2009) , 10.1016/J.JPOWSOUR.2008.11.042
K. Zaghib, M. Dontigny, P. Charest, J.F. Labrecque, A. Guerfi, M. Kopec, A. Mauger, F. Gendron, C.M. Julien, Aging of LiFePO4 upon exposure to H2O Journal of Power Sources. ,vol. 185, pp. 698- 710 ,(2008) , 10.1016/J.JPOWSOUR.2008.08.028
Jin-Hyon Lee, Hyun-Ho Kim, Gyu-Sung Kim, Dong-Sik Zang, Young-Min Choi, Hansu Kim, Dong Kee Yi, Wolfgang M. Sigmund, Ungyu Paik, Evaluation of Surface Acid and Base Properties of LiFePO4 in Aqueous Medium with pH and Its Electrochemical Properties Journal of Physical Chemistry C. ,vol. 114, pp. 4466- 4472 ,(2010) , 10.1021/JP9085552
C. Fongy, A.-C. Gaillot, S. Jouanneau, D. Guyomard, B. Lestriez, Ionic vs Electronic Power Limitations and Analysis of the Fraction of Wired Grains in LiFePO4 Composite Electrodes Journal of The Electrochemical Society. ,vol. 157, ,(2010) , 10.1149/1.3432559
H. Huang, S.-C. Yin, L. F. Nazar, Approaching Theoretical Capacity of LiFePO4 at Room Temperature at High Rates Electrochemical and Solid State Letters. ,vol. 4, pp. 170- 172 ,(2001) , 10.1149/1.1396695
Indrajeet V. Thorat, David E. Stephenson, Nathan A. Zacharias, Karim Zaghib, John N. Harb, Dean R. Wheeler, Quantifying tortuosity in porous Li-ion battery materials Journal of Power Sources. ,vol. 188, pp. 592- 600 ,(2009) , 10.1016/J.JPOWSOUR.2008.12.032