Abstract
Electrochemical impedance spectroscopy (EIS) was employed to study electrochemical behaviors during Li-ion insertion into rice husk carbon. The impedance spectra consist of two depressed semicircles in the high and middle range frequency and an incline line at low frequency. The impedance spectra, obtained in the potential range 2.0 to 0.005 V were analyzed with an equivalent circuit model. Kinetic parameters such as the charge-transfer resistance and surface film resistance were evaluated and discussed.
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Acknowledgment
The authors gratefully acknowledge the financial support of this work by MOSTI of Malaysia through the IRPA Programme (project no. 01-01-0057 EA 001).
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Kamisah, M.M., Siti Munirah, H. & Mansor, M.S. Electrochemical impedance study of lithium-ion insertion into rice husk carbon. Ionics 13, 223–225 (2007). https://doi.org/10.1007/s11581-007-0095-x
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DOI: https://doi.org/10.1007/s11581-007-0095-x