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Physically based modeling and simulation of a LiFePO4-based lithium-ion battery

Hellwig, Christian and Fronczek, David Norman and Sörgel, Şeniz and Bessler, Wolfgang Georg (2011) Physically based modeling and simulation of a LiFePO4-based lithium-ion battery. In: Book of abstracts - ModVal 8, p. 52. Forschungszentrum Jülich. ModVal 8, 8-9 Mar 2011, Bonn, Germany.

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Official URL: https://www.congressa.de/ModVal8/files/modval8-abook-corr_20110304.pdf

Abstract

We present a detailed electrochemical model of a LiFePO4 battery based on a multi-scale continuum description of chemistry and transport [2]. Thermodynamic properties of active materials in form of enthalpy and entropy contribution are also included as electron transfer processes using Butler-Volmer type equations. Chemistry is coupled to mass, charge and heat transport taking place on multiple scales (atoms and electrons inside the solid active materials, ions in the liquid electrolyte, electrons in the current collectors, heat within the full cell). The model is parameterized and validated using experimental impedance data and discharge curves obtained by using commercial high-power cells (A123). The simulation agrees very well with the experiments obtained and allows a detailed insight into the electrochemical behavior of the cell as a function of operating conditions and state-of-charge. Discharge curves at different C-rates as well as simulated impedance measurements for different state-of-charges show the same behavior like experimental data. References [1] Padhi, A. K., Nanjundaswamy, K. S. and Goodenough, J. B. Phospho-olivines as positive-electrode materials for rechargeable lithium batteries, Journal of the Electrochemical Society vol.144 (1997), pp. 1188-1194 [2] Bessler, W. G., Gewies, S. and Vogler, M. A new framework for physically based modeling of solid oxide fuel cells, Electrochimica Acta vol. 53 (2007), p. 1782-1800.

Item URL in elib:https://elib.dlr.de/72067/
Document Type:Conference or Workshop Item (Poster)
Additional Information:Only abstracts available online. For the poster itself, please contact the authors directly.
Title:Physically based modeling and simulation of a LiFePO4-based lithium-ion battery
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Hellwig, Christianchristian.hellwig (at) dlr.deUNSPECIFIED
Fronczek, David Normandavid.fronczek (at) dlr.deUNSPECIFIED
Sörgel, Şenizseniz.soergel (at) dlr.deUNSPECIFIED
Bessler, Wolfgang Georgdavid.fronczek (at) dlr.deUNSPECIFIED
Date:8 March 2011
Journal or Publication Title:Book of abstracts - ModVal 8
Refereed publication:No
Open Access:Yes
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Page Range:p. 52
Editors:
EditorsEmail
Kulikovsky, Andreimodval8@fz-juelich.de
Publisher:Forschungszentrum Jülich
Status:Published
Keywords:LiFePO4, discharge curves, impedance spectra, DENIS
Event Title:ModVal 8
Event Location:Bonn, Germany
Event Type:national Conference
Event Dates:8-9 Mar 2011
Organizer:Forschungszentrum Jülich
HGF - Research field:Energy
HGF - Program:Efficient Energy Conversion (old)
HGF - Program Themes:E EV - Energy process technology (old)
DLR - Research area:Energy
DLR - Program:E EV - Energy process technology
DLR - Research theme (Project):E - Elektrochemische Prozesse (old)
Location: Stuttgart
Institutes and Institutions:Institute of Engineering Thermodynamics > Electrochemical Energy Technology
Deposited By: Fronczek, David N.
Deposited On:08 Dec 2011 09:42
Last Modified:31 Jul 2019 19:33

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