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World Electric Vehicle Journal is published by MDPI from Volume 9 issue 1 (2018). Articles in this Issue were published by The World Electric Vehicle Association (WEVA) and its member the European Association for e-Mobility (AVERE), the Electric Drive Transportation Association (EDTA), and the Electric Vehicle Association of Asia Pacific (EVAAP). They are hosted by MDPI on mdpi.com as a courtesy and upon agreement with AVERE.
Open AccessArticle

Improving of Active Cell Balancing by Equalizing the Cell Energy Instead of the Cell Voltage

1
Mobility Department, Electric Drive Technologies, AIT Austrian Institute of Technology Giefinggasse 2, 1210 Vienna, Austria
2
Institute of Chemical Technologies and Analytics, Vienna University of Technology Getreidemarkt 9/164ec 1060 Vienna, Austria
*
Author to whom correspondence should be addressed.
World Electr. Veh. J. 2010, 4(2), 400-404; https://doi.org/10.3390/wevj4020400
Published: 25 June 2010
PDF [202 KB, uploaded 18 May 2018]

Abstract

This article presents how active charge balancing of energy storage devices such as batteries and supercaps can be improved by using the capacity and the state of charge instead of the cell voltage as balancing criterion. Both for charging and discharging an improvement of performance is gained when using the state of charge and the capacity of the cells as information. A battery stack is modeled and a realistic driving cycle is applied to compare the difference between both methods in terms of usable energy. Finally, the simulation is validated by measurements.
Keywords: Li-ion battery; active charge balancing; capacity balancing; battery management Li-ion battery; active charge balancing; capacity balancing; battery management
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).
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Einhorn, M.; Conte, F.V.; Fleig, J. Improving of Active Cell Balancing by Equalizing the Cell Energy Instead of the Cell Voltage. World Electr. Veh. J. 2010, 4, 400-404.

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