Study on Electrochemical Impedance Spectrum Analysis of LiFePO₄ in Aqueous Solutions by Using Powder Microelectrode

Abstract:

LiFePO₄ is becoming promising lithium ion cathode material. Because period of testing call is long, sometimes it cannot accurately characterize for cathode materials. By using Electrochemical Impedance Spectrum, it would be better to describe performance of materials. The electrochemical parameters have been obtained by modeling process of insertion and desertion by Electrochemical Impedance Spectrum, which is helpful to analyze LiFePO₄ electrochemical performance. Because of quick response and preciseness of electrochemical method, it would be better to analyze cathode materials.

• Periodical: Advanced Materials Research (Volumes 805-806)
• Pages: 1348-1351
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.805-806.1348
• Online since: September 2013
• Authors: Na Ha, Jie Min Liu
• Keywords: Aqueous Electrolyte, Equivalent Circuit, LiFePO₄, Microelectrode

References

[1] Do Kyung Kim, P. Muralidharan, Hyun-wook Lee, et al, Spinel LiMn2O4Nanorods as Lithium Ion Battery Cathodes, Nano Letters, 8(2008)3948-3952.

[2] HUANG Ke-long, YANG Sai, LIU Su-qin, WANG Hai-bo, Kinetics of Electrode Processes of LiFePO4 inSaturated Lithium Nitrate Solution, Acta Phys. Chim. Sin, 23(2007) 129-133.

DOI: 10.3866/pku.whxb20070127

[3] MinakshiManickama, PritamSingha, Stephen Thurgatea, Kathryn Princeb, Redox behavior and surface characterization of LiFePO4 in lithium hydroxide electrolyte, Power Sources, 58(2006)646-649.

DOI: 10.1016/j.jpowsour.2005.08.059

[4] H. Manjunatha, T.V. Venkatesha, G.S. Suresh, Kinetics of electrochemical insertion of lithium ion into LiFePO4 from aqueous 2 M Li2SO4 solution studied by potentiostatic intermittent titration technique, ElectrochimicaActa, 58(2011)245-257.

DOI: 10.1016/j.electacta.2011.09.041

[5] PADHI A K, NANJUNDAWAMY K S, GOODENOUGH J B, Phospho-olivines as positive-elevtrode materials for rechargeable lithium batteries, Journal of the Electrochemical Society, 144 (1997) 1188-1194.

DOI: 10.1149/1.1837571

[6] Cha Chuanxin, Chen Jian Liu Peifang, Improvement of Output Characteristics of Amperpmetric Enzyme Electrode by Using the Powder Microelectrode Technique, ELECTRO CHEMISTRY, 3(1997)7-10.

[7] Kun Tang, Xiqian Yu, Jinpeng Sun, Hong Li, Xuejie Huang, Kinetic analysis on LiFePO4 thin films by CV, GITT, and EIS, Electrochimica Acta, 56(2011)4869-4875.

DOI: 10.1016/j.electacta.2011.02.119

[8] Stefan Klink, EdytaMadej, Edgar entosa, Armin Lindner, Wolfgang Schuhmann, Fabio La Mantia, The importance of cell geometry for electrochemical impedance spectroscopy in three-electrode lithium ion battery test cells, Electrochemistry Communications, 22 (2012).

DOI: 10.1016/j.elecom.2012.06.010

[9] Dongsheng Lu, Weishan Li, XizaoxiZuo, et al, Study On Electrode Kinetics of Li+ Insertion in LixMn2O4 (0 ≤ x ≤ 1) by Electrochemical Impedance Spectroscopy, Physical Chemstry, 111(2007)12067-12074.

[10] Alerto Varzi, Corina Taubert, Margret Wohlfahrt-Mehrens, The effects of pristion and carboxylated multi-walled carbon nanotubes as conductive additives on the performance of LiNi0. 33Co0. 33Mn0. 33O2 and LiFePO4 positive electrodes, ElectrochimicaActa, 78(2012).

DOI: 10.1016/j.electacta.2012.05.127

[11] C.H. Mi, X.G. Zhang, H.L. Li, Electrochemical behaviors of solid LiFePO4 and Li0. 99Nb0. 01FePO4 in Li2SO4 aqueous electrolyte, Journal of Electroanalytical Chemistry, 602(2007)245-254.

DOI: 10.1016/j.jelechem.2007.01.007

[12] FeiGao, Zhiyuan Tang, Kinetic behavior of LiFePO4/C cathode material for lithium-ion batteries, ElectrochimicaActa, 53(2008)5071-5075.

DOI: 10.1016/j.electacta.2007.10.069