Next Article in Journal
Reduced Graphene Oxide Aerogels with Functionalization-Mediated Disordered Stacking for Sodium-Ion Batteries
Previous Article in Journal
Raman Diagnostics of Cathode Materials for Li-Ion Batteries Using Multi-Wavelength Excitation
Previous Article in Special Issue
Early Detection of Failing Automotive Batteries Using Gas Sensors
 
 
Article

The Impact of an Overlaid Ripple Current on Battery Aging: The Development of the SiCWell Dataset

1
Chair of Electrical Energy Storage Technology (EET), Institute of Energy and Automation, Technische Universität Berlin, Einsteinufer 11, D-10587 Berlin, Germany
2
Chair of Power Electronics (PE), Institute of Energy and Automation, Technische Universität Berlin, Einsteinufer 19, D-10587 Berlin, Germany
3
Chair of Electronic Measurement and Diagnostic Technology (MDT), Institute of Energy and Automation, Technische Universität Berlin, Einsteinufer 17, D-10587 Berlin, Germany
4
Mercedes-Benz AG (MBAG), Research & Development, Hanns Klemm Str. 45, D-71034 Boeblingen, Germany
*
Author to whom correspondence should be addressed.
Academic Editor: Matthieu Dubarry
Batteries 2022, 8(2), 11; https://doi.org/10.3390/batteries8020011
Received: 8 December 2021 / Revised: 12 January 2022 / Accepted: 27 January 2022 / Published: 31 January 2022
(This article belongs to the Special Issue Batteries and Electric Vehicles)
Fast-switching semiconductors induce ripple currents on the high-voltage DC bus in the electric vehicle (EV). This paper describes the methods used in the project SiCWell and a new approach to investigate the influence of these overlaid ripples on the battery in EVs. The ripple current generated by the main inverter is demonstrated with a measurement obtained from an electric vehicle. A simulation model is presented which is based on an artificial reference DC bus, according to ISO 21498-2, and uses driving cycles in order to obtain current profiles relevant for battery cycling. A prototype of a battery cycling tester capable of high frequency and precise ripple current generation was developed and is used to cycle cells with superimposed ripple currents within an aging study. To investigate the impact of the frequency and the amplitude of the currents on the battery’s lifetime, these ripple parameters are varied between different test series. Cell parameters such as impedance and capacity are regularly characterized and the aging of the cells is compared to standard DC cycled reference cells. The aging study includes a total of 60 automotive-sized pouch cells. The evaluation of ripple currents and their impact on the battery can improve the state-of-health diagnosis and remaining-useful life prognosis. For the development and validation of such methods, the cycled cells are monitored with a measurement system that regularly measures current and voltage with a sampling rate of 2 MHz. The resulting dataset is suitable for the design of future ripple current aging studies as well as for the development and validation of aging models and methods for battery diagnosis. View Full-Text
Keywords: battery aging; ripple current; lithium-ion batteries (LIBs); current harmonics; neural network; electric vehicle; dataset battery aging; ripple current; lithium-ion batteries (LIBs); current harmonics; neural network; electric vehicle; dataset
Show Figures

Figure 1

MDPI and ACS Style

Goldammer, E.; Gentejohann, M.; Schlüter, M.; Weber, D.; Wondrak, W.; Dieckerhoff, S.; Gühmann, C.; Kowal, J. The Impact of an Overlaid Ripple Current on Battery Aging: The Development of the SiCWell Dataset. Batteries 2022, 8, 11. https://doi.org/10.3390/batteries8020011

AMA Style

Goldammer E, Gentejohann M, Schlüter M, Weber D, Wondrak W, Dieckerhoff S, Gühmann C, Kowal J. The Impact of an Overlaid Ripple Current on Battery Aging: The Development of the SiCWell Dataset. Batteries. 2022; 8(2):11. https://doi.org/10.3390/batteries8020011

Chicago/Turabian Style

Goldammer, Erik, Marius Gentejohann, Michael Schlüter, Daniel Weber, Wolfgang Wondrak, Sibylle Dieckerhoff, Clemens Gühmann, and Julia Kowal. 2022. "The Impact of an Overlaid Ripple Current on Battery Aging: The Development of the SiCWell Dataset" Batteries 8, no. 2: 11. https://doi.org/10.3390/batteries8020011

Find Other Styles
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

1
Back to TopTop