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Sensors 2010, 10(6), 5604-5625; doi:10.3390/s100605604

Comparison of Several Methods for Determining the Internal Resistance of Lithium Ion Cells

Continental AG, Business Unit Hybrid and Electric Vehicles, Sickingenstrasse 42-46, 10553 Berlin, Germany
University of Applied Sciences Brandenburg, Magdeburger Strasse 50, 14770 Brandenburg, Germany
Georg Agricola University of Applied Sciences, Herner Strasse 45, 44787 Bochum, Germany
Author to whom correspondence should be addressed.
Received: 28 January 2010 / Revised: 25 March 2010 / Accepted: 18 May 2010 / Published: 3 June 2010
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The internal resistance is the key parameter for determining power, energy efficiency and lost heat of a lithium ion cell. Precise knowledge of this value is vital for designing battery systems for automotive applications. Internal resistance of a cell was determined by current step methods, AC (alternating current) methods, electrochemical impedance spectroscopy and thermal loss methods. The outcomes of these measurements have been compared with each other. If charge or discharge of the cell is limited, current step methods provide the same results as energy loss methods. View Full-Text
Keywords: internal resistance; impedance; lithium-ion-cell; AC resistance; DC resistance internal resistance; impedance; lithium-ion-cell; AC resistance; DC resistance

This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

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MDPI and ACS Style

Schweiger, H.-G.; Obeidi, O.; Komesker, O.; Raschke, A.; Schiemann, M.; Zehner, C.; Gehnen, M.; Keller, M.; Birke, P. Comparison of Several Methods for Determining the Internal Resistance of Lithium Ion Cells. Sensors 2010, 10, 5604-5625.

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