Introducing an approach to predict the time-dependent mechanical, electrical and thermal behaviour of Li-ion batteries due to crash loads

Research output: Contribution to conferenceAbstract

Abstract

Nowadays, lithium-ion batteries are the predominant energy storage technology for vehicles with electrified drive trains. In case of an accident mechanical loads on Li-ion cells may cause an internal shortcircuit which can further lead to severe exothermic reactions (e.g. smoke, fire, explosion). Existing numerical methods to estimate the time-dependent mechanical, electrical and thermal processes are not sufficient at present. For that reason a novel approach has been developed. Three major parts - explicit non-linear structural analysis (FEA), implicit multi-physical simulation and an interface to link these two simulation tools - have been combined to form a continuous work-flow. While the FEA model has been set up using a microscopic scale mesh, the multi-physics code was extended by a short-circuit model. This approach is capable of predicting the cell behaviour due to crash loads (e.g. acceleration, deformation).
Original languageEnglish
Publication statusAccepted/In press - 24 Apr 2017
EventEVS30 Symposium: Electric Vehicle Symposium & Exhibition - Stuttgart, Germany
Duration: 9 Oct 201711 Oct 2017
http://www.messe-stuttgart.de/en/evs30

Conference

ConferenceEVS30 Symposium
CountryGermany
CityStuttgart
Period9/10/1711/10/17
Internet address

Fields of Expertise

  • Mobility & Production

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