Imperial College London
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Dr Laura Bravo Diaz

Faculty of Engineering, Department of Mechanical Engineering

Academic Visitor
 
 
 
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Contact

 

l.bravo-diaz

 
 
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Location

 

409City and Guilds BuildingSouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@article{Bravo:2019:4/185,
author = {Bravo, Diaz L and Hales, A and Zhao, Y and Marzook, MW and Patel, Y and Offer, GJ},
doi = {4/185},
journal = {ECS Meeting Abstracts},
pages = {185--185},
title = {Cell Heat Generation and Dissipation: From Experimentation to Application for Cell Design.},
url = {http://dx.doi.org/10.1149/ma2019-04/4/185},
volume = {MA2019-04},
year = {2019}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - <jats:p> Lithium ion batteries (LIBs) are increasingly important in ensuring sustainable mobility and reliable energy supply, storing and managing energy from renewable sources [1]. Temperature is a critical factor in LIBs performance optimisation where large temperature deviations within the cell could lead to accelerated degradation and in extreme cases, thermal runaway. Thermal management has therefore become the focus of intensive research in an attempt to improve battery performance and lifespan [2-5]. Despite the growing research interest in this area, cell heat generation and heat dissipation pathways are not usually considered when designing a cell. This typically leads to cells with thermal bottlenecks prone to internal thermal gradients. With the goal of improving performance and lifetime, a two-dimensional electro-thermal model has been developed to simulate cell performance and internal states under complex thermal boundary conditions [6]. This model can be used to assess different cooling strategies and parameters such us tab position and dimensions can be optimised from the thermal performance perspective for a particular cell chemistry and geometry. </jats:p>               <jats:p>In this study, a novel experimental procedure is employed to evaluate cell heat generation and dissipation for various operation conditions. The two-dimensional electro-thermal model was employed to assess the internal temperature distribution during the measurements and to verify the heat dissipation patterns observed during the experiments. As a result, a new metric, the Cell Cooling Coefficient (CCC) is proposed to evaluate the thermal pathways of a cell cooled via its tabs. <jats:list list-type="simple">                     <jats:list-item>                        <jats:p>International Energy Agency. Tracking Clean Energy Progress 2017. 1–82 (2017). doi:10.1787/energy_tech-2014-en</jats:p>                     <
AU  - Bravo,Diaz L
AU  - Hales,A
AU  - Zhao,Y
AU  - Marzook,MW
AU  - Patel,Y
AU  - Offer,GJ
DO  - 4/185
EP  - 185
PY  - 2019///
SP  - 185
TI  - Cell Heat Generation and Dissipation: From Experimentation to Application for Cell Design.
T2  - ECS Meeting Abstracts
UR  - http://dx.doi.org/10.1149/ma2019-04/4/185
VL  - MA2019-04
ER  -
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