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Article Dans Une Revue Journal of The Electrochemical Society Année : 2011

Electrochemical Kinetic Study of LiFePO4 Using Cavity Microelectrode

Résumé

Lithium cation insertion and extraction in LiFePO4 were electrochemically studied with a cavity microelectrode (CME). Cyclic voltammetry measurements were used to characterize the kinetics of the material. LiFePO4 was successfully cycled from 0.1 mV s-1 up to 1 V s-1 and is therefore a suitable material to be used in high power applications, such as asymmetric hybrid supercapacitors. Several kinetic behaviors were observed depending on the sweep rate. The LiFePO4 was found to follow different kinetics behaviors depending of the sweep rate. The charge storage mechanisms were investigated for Liþ extraction/insertion.
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Dates et versions

hal-00842563 , version 1 (08-07-2013)

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Jérémy Come, Pierre-Louis Taberna, Stephane Hamelet, Christian Masquelier, Patrice Simon. Electrochemical Kinetic Study of LiFePO4 Using Cavity Microelectrode. Journal of The Electrochemical Society, 2011, vol. 158, pp. 1090-1093. ⟨10.1149/1.3619791⟩. ⟨hal-00842563⟩
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