Imperial College London
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DrMonicaMarinescu

Faculty of Engineering, Department of Mechanical Engineering

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+44 (0)20 7594 7091monica.marinescu Website

 
 
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Location

 

722Mechanical EngineeringSouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@article{von:2016:10.1016/j.jpowsour.2016.05.051,
author = {von, Srbik M-T and Marinescu, M and Martinez-Botas, RF and Offer, GJ},
doi = {10.1016/j.jpowsour.2016.05.051},
journal = {Journal of Power Sources},
pages = {171--184},
title = {A physically meaningful equivalent circuit network model of a lithium-ion battery accounting for local electrochemical and thermal behaviour, variable double layer capacitance and degradation},
url = {http://dx.doi.org/10.1016/j.jpowsour.2016.05.051},
volume = {325},
year = {2016}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - A novel electrical circuit analogy is proposed modellingelectrochemical systems under realistic automotive operation  conditions.  The  model  is  developed  for  a  lithium  ion  battery  and  is  based  on  a  pseudo  2D electrochemical  model.  Although  cast  in  the  framework  familiar  to  application  engineers,  the  model  is essentially an electrochemical battery model: all variables have a direct physical interpretation and there is direct access to all states of the cell via the model variables (concentrations, potentials) for monitoring and control  systems  design.  This  is  the  first Equivalent  Circuit  Network-type  model  that  tracks  directly  the evolution  of  species  inside  the  cell.  It  accounts  for  complex  electrochemical  phenomena  that  are  usually omitted  in  online  battery  performance  predictors  such  as  variable  double  layer  capacitance,  the  full current-overpotential   relation   and   overpotentials   due   to   mass   transport   limitations.   The   coupled electrochemical  and  thermal  model  accounts  for  capacity  fade  via  a  loss  in  active  species  and  for  power fade  via  an  increase  in  resistive  solid  electrolyte  passivation  layers  at  both  electrodes.  The  model's capability  to  simulate  cell  behaviour  under  dynamic  events  is  validated  against  test  procedures,  such  as standard battery testing load cycles for current rates up to 20 C, as well as realistic automotive drive cycle loads.
AU  - von,Srbik M-T
AU  - Marinescu,M
AU  - Martinez-Botas,RF
AU  - Offer,GJ
DO  - 10.1016/j.jpowsour.2016.05.051
EP  - 184
PY  - 2016///
SN  - 0378-7753
SP  - 171
TI  - A physically meaningful equivalent circuit network model of a lithium-ion battery accounting for local electrochemical and thermal behaviour, variable double layer capacitance and degradation
T2  - Journal of Power Sources
UR  - http://dx.doi.org/10.1016/j.jpowsour.2016.05.051
UR  - https://www.sciencedirect.com/science/article/pii/S0378775316305973?via%3Dihub
UR  - http://hdl.handle.net/10044/1/33682
VL  - 325
ER  -
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