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

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          Abstract

          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.

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          Most cited references28

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          A review of impedance measurements for determination of the state-of-charge or state-of-health of secondary batteries

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            Experimental study of supercapacitor serial resistance and capacitance variations with temperature

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              The impedance characteristics of Mars Exploration Rover Li-ion batteries

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                Author and article information

                Journal
                Sensors (Basel)
                Sensors (Basel, Switzerland)
                Molecular Diversity Preservation International (MDPI)
                1424-8220
                2010
                3 June 2010
                : 10
                : 6
                : 5604-5625
                Affiliations
                [1 ] Continental AG, Business Unit Hybrid and Electric Vehicles, Sickingenstrasse 42-46, 10553 Berlin, Germany; E-Mails: ossama.obeidi@ 123456continental-corporation.com (O.O.); michael.schiemann@ 123456continental-corporation.com (M.S.); michael.keller@ 123456continental-corporation.com (M.K.); peter.birke@ 123456continental-corporation.com (P.B.)
                [2 ] University of Applied Sciences Brandenburg, Magdeburger Strasse 50, 14770 Brandenburg, Germany; E-Mails: o.komesker@ 123456gmx.de (O.K.); zehner@ 123456fh-brandenburg.de (C.Z.)
                [3 ] Georg Agricola University of Applied Sciences, Herner Strasse 45, 44787 Bochum, Germany; E-Mails: raschke.andre@ 123456googlemail.com (A.R.); gehnen@ 123456tfh-bochum.de (M.G.)
                Author notes
                [* ]Author to whom correspondence should be addressed; Tel.: +49-30-34008-261; Fax: +49-30-34008-11261; E-Mail: hans-georg.schweiger@ 123456continental-corporation.com .
                Article
                sensors-10-05604
                10.3390/s100605604
                3247723
                22219678
                d8b2bba0-04d8-4e46-b77f-9a869118feca
                © 2010 by the authors; licensee MDPI, Basel, Switzerland.

                This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution license ( http://creativecommons.org/licenses/by/3.0/).

                History
                : 28 January 2010
                : 25 March 2010
                : 18 May 2010
                Categories
                Article

                Biomedical engineering
                impedance,dc resistance,internal resistance,lithium-ion-cell,ac resistance
                Biomedical engineering
                impedance, dc resistance, internal resistance, lithium-ion-cell, ac resistance

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