Effect of LiFePO₄ Cathode Thickness on Lithium Battery Performance

Abstract:

Lithium ion battery is composed of three main parts, i.e. cathode, anode and electrolyte. In this work, we investigated the effect of LiFePO₄ cathode composite’s thickness on performances of lithium battery. LiFePO₄ cathode was prepared in a slurry that consisted of lithium iron phosphate (LiFePO₄) powder as active material, acetylene black as conductive additive, polyvinylidene fluoride (PVDF) as binder, and N-methyl-2-pyrrolidone (NMP) as solvent. The slurry was then deposited on the aluminum substrate using doctor blade method in different thickness. The cathode layers were deposited with the thickness of 150, 200, 250 & 300 μm. The structure characterization of the material was analyzed by XRD, while the material’s morphology was analyzed by Scanning Electron Microscope (SEM). Performances of lithium ion battery with LiFePO₄ cathode were evaluated using charge-discharge cycle test. It is found that battery made of cathode layer with 250 μm thickness shows the best performances.

• Periodical: Materials Science Forum (Volume 827)
• Pages: 146-150
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.827.146
• Online since: August 2015
• Authors: Ariska Rinda Adityarini*, Eka Yoga Ramadhan, Endah Retno Dyartanti, Agus Purwanto
• Keywords: LiFePO₄, Lithium Battery, X-Ray Diffraction

References

[1] C.H. Chen, Fabrication of LiCoO2, Thin Film Cathodes for Rechargeable Lithium. Solid State Ionics, 80 (1995) 1-4.

DOI: 10.1016/0167-2738(95)00140-2

[2] M. Yoshio, Synthesis of LiCoO2, from cobalt-organic acid complexes and its electrode behaviour in a lithium secondary battery. Journal of Power Sources, 40 (1992) 347-353.

DOI: 10.1016/0378-7753(92)80023-5

[3] R. Ruffo, C. Wessells, R.A. Huggins, Y. Cui, Electrochemical behavior of LiCoO2 as aqueous lithium-ion battery electrodes. Electrochemistry Communications, 11 (2009) 247–249.

DOI: 10.1016/j.elecom.2008.11.015

[4] M.S. Zhao, X.P. Song, Synthesizing kinetics and characteristics for spinel LiMn2O4 with the precursor using as lithium-ion battery cathode material. Journal of Power Sources, 164 (2007) 822-828.

DOI: 10.1016/j.jpowsour.2006.11.001

[5] N. Kitamura, H. Iwatsuki, Y. Idemoto, Improvement of cathode performance of LiMn2O4 as a cathode active material for Li ion battery by step-by-step supersonic-wave treatments. Journal of Power Sources, 189 (2009) 114–120.

DOI: 10.1016/j.jpowsour.2008.10.046

[6] H.W. Chan, J.G. Duh, J.F. Lee, Valence change by in situ XAS in surface modified LiMn2O4 for Li-ion battery, Electrochemistry Communications, 8 (2006) 1731–1736.

DOI: 10.1016/j.elecom.2006.07.038

[7] L. Zhang, G. Peng, X. Yang, P. Zhang, High performance LiFePO4/C cathode for lithium ion battery prepared under vacuum conditions, Vacuum 84 (2010) 1319-1322.

DOI: 10.1016/j.vacuum.2010.02.011

[8] J. Liua, J. Wanga, X. Yana, X. Zhanga, G. Yanga, A.F. Jalbout, R. Wanga, Long-term cyclability of LiFePO4/carbon composite cathode material for lithium-ion battery applications, Electrochimica Acta 54 (2009) 5656–5659.

DOI: 10.1016/j.electacta.2009.05.003

[9] A. Yamada, S.C. Chung, K. Hinokuma, Optimized LiFePO4 for Lithium Battery Cathodes, J. Electrochem. Soc., 148 (2001) 224-229.

DOI: 10.1149/1.1348257

[10] A. K. Padhi, K. S. Nanjundaswamy, J. B. Goodenough. Phospho-olivines as Positive-Electrode Materials for Rechargeable Lithium Batteries. The Electrochemical Society, 144 (1997) 1188-1194.

DOI: 10.1149/1.1837571

[11] Y.D. Li, S.X. Zhao, C.W. Nan, B.H. Li, Electrochemical performance of SiO2-coated LiFePO4 cathode materials for lithium ion battery. J. Of Alloys and Compounds. 509 (2011) 957-960.

DOI: 10.1016/j.jallcom.2010.08.154

[12] J. Kim, H. Kim, I. Park, Y.U. Park, J.K. Yoo, K.Y. Park. LiFePO4 with an alluaudite crystal structure for lithium ion batteries. J. Energy and Environmental Sciences. 6 (2013) 830-834.

DOI: 10.1039/c3ee24393a

[13] V.H. Nguyen, W.L. Wang, E.M. Jin, H.B. Gu. Impacts of different polymer binders on electrochemical properties of LiFePO4 cathode. Applied Surface Science. 282 (2013) 444-449.

DOI: 10.1016/j.apsusc.2013.05.149

[14] S.S. Zhang, K. Xu, T.R. Jow, Evaluation on a water-based binder for the graphite anode of Li-ion batteries. Journal of Power Sources 138 (2004) 226–231.

DOI: 10.1016/j.jpowsour.2004.05.056

[15] H. Liu, Q. Cao, L.J. Fu, C. Li, Y.P. Wu, H.Q. Wu, Doping effects of zinc on LiFePO4 cathode material for lithium ion batteries. Electrochemistry Communications 8 (2006) 1553–1557.

DOI: 10.1016/j.elecom.2006.07.014

[16] Y. Bai, P. Qiu, Z. Wen, S. Hans, Improvement of electrochemical performances of LiFePO4 cathode materials by coating of polythiophene. Journal of Alloys and Compounds 508 (2010) 1–4.

DOI: 10.1016/j.jallcom.2010.05.173

[17] B. Jin, E.M. Jin, K.H. Park, H.B. Gu, Electrochemical properties of LiFePO4-multiwalled carbon nanotubes composite cathode materials for lithium polymer battery, Electrochemistry Communications, 10 (2008) 1537-1540.

DOI: 10.1016/j.elecom.2008.08.001

[18] Z. Xiao, G. Hu, K. Du, Z. Peng, Improving electrochemical performances of LiFePO4/C cathode material via a novel three-layer electrode, Trans. Nonferrous Met. Soc. China 23(2013) 3324−3329.

DOI: 10.1016/s1003-6326(13)62871-x

[19] Y. Janssen, D. Santhanagopalan, D. Qian, M. Chi, X. Wang, C. Hoffmann, Y. S. Meng; P. G. Khalifah, Reciprocal Salt Flux Growth of LiFePO4 Single Crystals with Controlled Defect Concentrations. Chemistry of Materials 25 (2013) 4574–4584.

DOI: 10.1021/cm4027682