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Volume 8 Journal of Fundamentals of Renewable Energy and Applications
ISSN: 2090-4541 Battery Tech 2018
September 10-11, 2018
September 10-11, 2018 | London, UK
3rd International Conference on
Battery and Fuel Cell Technology
MOBICUS project: Battery ageing testing, modelling, and strategies for improved durability
Philippe Gyan
Groupe RENAULT, France
The development of the market of electrified vehicles brings a response to environmental concerns, with sustainable
mobility and the use of clean energy sources. The performances of electric energy storage system have improved with
new generations of lithium-ion batteries, and their high energy density. Still, during the life of the vehicle, these batteries
may undergo some degradation, with a capacity loss, and internal resistance increase through the effect of usage and time.
Car fleet owners, car manufacturers want to ensure the profitability of their economic models, and cover the warranty costs,
in case these batteries need to be replaced. Therefore, reliable battery ageing models, able to represent vehicle real usage
scenarios are required. The French National collaborative project MOBICUS (2013-2017) aims at designing and validating
strategies enabling to improve battery durability with vehicle usage and recharge, from experimental measurements, models
and validations. Previous projects SIMSTOCK (2007-2011) and SIMCAL (2009-2012), focused respectively on cycling ageing
and on calendar ageing. The new approaches developed in MOBICUS bring: The non-linear strong coupling between calendar
and cycling ageing; the validation on extended domains of state of charge and temperature; the application of dynamic thermal
models and; measurements on cells and packs. Various usage strategies have been tested on packs; thermal strategies have been
evaluated, with applications to fast charging. The battery ageing models can now be used for first and second life batteries, and
be relevant for smart grids, and smart charging applications.
Figure 1: Pattern for ageing measurements on a battery pack.
Recent Publications
1. P Gyan, P Aubret, F Sellier, S Bourlot, S Zinola and F (2013)Badin Experimental assessment of battery cycle life within
the SIMSTOCK research program, Rev. IFP Energies Nouvelles DOI: 10.2516/ogst/2013106.
2. Baghdadi, O. Briat, A. Eddaech, J.M. Vinassa, P. Gyan (2015) Electro-thermal model of lithium-ion batteries for electrified
vehicles applications. Industrial Electronics (ISIE), 2015 IEEE 24th International Symposium on.
3. Grolleau, Baghdadi, Gyan, Ben Marzouk, Duclaud (2016): Capacity fade of lithium-ion batteries upon mixed calendar/
cycling aging protocol. EVS29 Montreal.
4. Baghdadi, R. Mathieu, O. Briat, J.M. Vinassa (2017) Lithium-Ion Battery Ageing Assessment Based on a Reduced Design
of Experiments 2017 IEEE Vehicle Power and Propulsion Conference (VPPC).
Biography
Philippe Gyan has graduated in 1998 from the Ecole Centrale de Lyon, with a PhD in Mechanical Engineering, Thermal and Energy Management. He has been working
for the past 10 years in Renault Research Department for the Electric Vehicle Division. Through contributions to French National and European Projects, he has developed
battery ageing models applied to real usage scenarios.
Philippe Gyan, J Fundam Renewable Energy Appl 2018, Volume 8
DOI: 10.4172/2090-4541-C5-062