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Communication Dans Un Congrès Année : 2010

Estimation of the SOC and the SOH of li-ion batteries, by combining impedance measurements with the fuzzy logic inference

Ali Zenati
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Philippe Desprez
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Hubert Razik
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Résumé

This paper describes experimental results aiming at analyzing lithiumion batteries performances with aging, for different state of charge and temperatures. The results are provided from electrochemical impedance spectroscopy (EIS) measurements on new and aged cells. A climatic test chamber is used during experiments to simulate the conditions of the temperature. Experimental data are plotted over a broad spectrum of frequencies on Nyquist diagrams. We will also inspect the impact of the presence of a DC current during the EIS measurement. Finally, obtained results will be processed in a way to be used in a fuzzy logic system (FLS), to assess either the state of charge (SOC) or the state of health (SOH) of cells.
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Dates et versions

hal-00564335 , version 1 (08-02-2011)

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Ali Zenati, Philippe Desprez, Hubert Razik. Estimation of the SOC and the SOH of li-ion batteries, by combining impedance measurements with the fuzzy logic inference. 36th IEEE IECON, Nov 2010, Glendale, United States. pp.1767-1772, ⟨10.1109/IECON.2010.5675408⟩. ⟨hal-00564335⟩
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