Thermal-managed oriented, multi-domain battery modelling and experimental validation.

dc.contributor.advisorLongo, Stefano
dc.contributor.advisorTirovic, Marko
dc.contributor.authorMorganti, Manlio Valerio
dc.date.accessioned2024-03-07T12:08:38Z
dc.date.available2024-03-07T12:08:38Z
dc.date.issued2019-12
dc.description.abstractA cross-domain battery simulation methodology, that could allow, a more streamlined design process, was needed. Acausal, object-oriented, multi-domain modelling strategies are becoming more and more common, beside traditional co-simulation methods, since they avoid the development of several different models for each causality type and leaving therefore flexibility to the user. A multi-domain, re-scalable, battery model and a reconfigurable battery-module test-rig are introduced in this thesis. The chosen approach allows the final user to generate different module and pack layouts from a single cell model. Materials were fully characterised, then initial conditions were defined, boundary conditions outlined and ultimately the strategy was tested against different scenarios. It is therefore possible to generate arrays of more cell models connected with each other, resulting in a module model. Such an approach achieved higher accuracy than a lumped element model with computational cost being lower than finite element models. The error in simulated voltage estimation was low and the model could handle the transient with a reduced error in temperature. In order to validate such models a test-rig, capable of hosting different battery layouts was implemented. Extensive hardware characterisation, including sensor uncertainty analysis was carried out on the experimental layout. The model of a battery module was successfully implemented. When comparing with experimental data, the discrepancies in the case of the module were larger than in the case of single cell, but the outcome was still laying in the interval of confidence. The temperature profile has been predicted well for cell and module at reduced computational costs. The case studies proved the effectiveness of cooling which was accurately captured by the models developed. Moreover, it was demonstrated that indirect liquid cooling based on removable heat cold plates can be very effective in keeping the battery module within safety operational temperatures during fast charging.en_UK
dc.description.coursenamePhD in Transport Systemsen_UK
dc.identifier.urihttps://dspace.lib.cranfield.ac.uk/handle/1826/20943
dc.language.isoenen_UK
dc.publisherCranfield Universityen_UK
dc.publisher.departmentSATMen_UK
dc.rights© Cranfield University, 2019. All rights reserved. No part of this publication may be reproduced without the written permission of the copyright holder.en_UK
dc.subjectbatteryen_UK
dc.subjectlithium-ionen_UK
dc.subjectthermal modellingen_UK
dc.subjectrescalableen_UK
dc.subjecttest-rigen_UK
dc.subjectre-configurableen_UK
dc.titleThermal-managed oriented, multi-domain battery modelling and experimental validation.en_UK
dc.typeThesis or dissertationen_UK
dc.type.qualificationlevelDoctoralen_UK
dc.type.qualificationnamePhDen_UK

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