Current Equalization for Serially Connected Battery Cells for a Possible Second Life Application

Markus Einhorn (Vortragende:r), Robert Permann, Christian Kral, Fiorentino Valerio Conte, W. Guertelschmid, T. Blochberger, R. Kumpusch, Jürgen Fleig

Publikation: Beitrag in Buch oder TagungsbandVortrag mit Beitrag in Tagungsband

Abstract

This article presents a method to control the current of each battery cell in a serially connected battery stack according to each cell capacity. With this method battery cells with different capacities and even battery cells with different chemistries can be serially connected. Therefore, significantly more energy can be extracted from the battery stack and a second-life-option for old batteries with a large capacity variation is possible. The required power converter structure as well as the calculation of the individual cell currents are presented. A simulation of the power converter is performed and validated by a prototype with twelve serially connected battery cells.
OriginalspracheEnglisch
TitelProceedings of the IEEE Vehicle Power and Propulsion Conference (IEEE VPPC 2011)
PublikationsstatusVeröffentlicht - 2011
VeranstaltungThe 7th IEEE Vehicle Power and Propulsion Conference (IEEE VPPC 2011) -
Dauer: 6 Sept. 20119 Sept. 2011

Konferenz

KonferenzThe 7th IEEE Vehicle Power and Propulsion Conference (IEEE VPPC 2011)
Zeitraum6/09/119/09/11

Research Field

  • Nicht definiert

Schlagwörter

  • active current equalization
  • battery management
  • lithium-ion battery
  • second-life-option

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