Batteries 2020 – Lithium-ion battery first and second life ageing, validated battery models, lifetime modelling and ageing assessment of thermal parameters

Jean-Marc Paul Timmermans, Alexandros Nikolian, Joris De Hoog, Rahul Gopalakrishnan, Shovon Goutam, Noshin Omar, Thierry Clement Coosemans, Joeri Van Mierlo

Research output: Chapter in Book/Report/Conference proceedingConference paper

27 Citations (Scopus)
1772 Downloads (Pure)

Abstract

The European Project “Batteries 2020” unites nine partners jointly working on research and the development of competitive European automotive batteries. The project aims at increasing both the energy density and lifetime of large format pouch lithium-ion batteries towards the goals targeted for automotive batteries (250 Wh/kg at cell level, over 4000 cycles at 80% depth of discharge). Three parallel strategies are followed in order to achieve those targets: (i) Highly focused materials development; two improved generations of NMC cathode materials allows to improve the performance, stability and cyclability of state of the art battery cells. (ii) Better understanding of the ageing phenomena; a robust and realistic testing methodology has been developed and was carried out. Combined accelerated, real driving cycle tests, real field data, post-mortem analysis, modeling and validation with real driving profiles was used to obtain a thorough understanding of the degradation processes occurring in the battery cells. (iii) Reduction of battery cost; a way to reduce costs, increase battery residual value and improve sustainability is to consider second life uses of batteries used in electric vehicle application. These batteries are still operational and suitable to less restrictive conditions, such as those for stationary and renewable energy application. Therefore, possible second life opportunities have been identified and further assessed. In this paper, the main ageing effects of lithium ion batteries are explained. Next, an overview of different validated battery models will be discussed. Finally, a methodology for assessing the performance of the battery cells in a second life application is presented.
Original languageEnglish
Title of host publicationEPE 2016 Conference Proceedings
PublisherIEEE
Number of pages23
ISBN (Electronic)978-9-0758-1524-5
ISBN (Print)978-1-5090-1410-1
Publication statusPublished - 5 Sep 2016
Event18th European Conference on Power Electronics and Applications - Karlsruhe, Germany
Duration: 5 Sep 20169 Sep 2016
http://www.epe2016.com

Conference

Conference18th European Conference on Power Electronics and Applications
Abbreviated titleEPE 2016
CountryGermany
CityKarlsruhe
Period5/09/169/09/16
Internet address

Keywords

  • Batteries
  • Energy Storage
  • Simulation
  • Modelling
  • electric vehcile

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