Paraffin Nanocomposites for Heat Management of Lithium-Ion Batteries: A Computational Investigation

Lithium-ion (Li-ion) batteries are currently considered as vital components for advances in mobile technologies such as those in communications and transport. Nonetheless, Li-ion batteries suffer from temperature rises which sometimes lead to operational damages or may even cause fire. An appropriat...

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Bibliographic Details
Published in:Journal of nanomaterials 2016-01, Vol.2016 (2016), p.1-10
Main Authors: Rabczuk, Timon, Azadi Kakavand, M. R., Mohebbi, Farzad, Shirazi, A. H. N., He, B.
Format: Article
Language:English
Subjects:
Carbon
Composite materials
Conductivity
Cooling
Efficiency
Electrodes
Fillers
Graphene
Heat transfer
Lithium
Lithium-ion batteries
Mathematical models
Nanocomposites
Nanomaterials
Paraffins
Partial differential equations
Product design
R&D
Rechargeable batteries
Research & development
Studies
Temperature
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Summary:Lithium-ion (Li-ion) batteries are currently considered as vital components for advances in mobile technologies such as those in communications and transport. Nonetheless, Li-ion batteries suffer from temperature rises which sometimes lead to operational damages or may even cause fire. An appropriate solution to control the temperature changes during the operation of Li-ion batteries is to embed batteries inside a paraffin matrix to absorb and dissipate heat. In the present work, we aimed to investigate the possibility of making paraffin nanocomposites for better heat management of a Li-ion battery pack. To fulfill this aim, heat generation during a battery charging/discharging cycles was simulated using Newman’s well established electrochemical pseudo-2D model. We couple this model to a 3D heat transfer model to predict the temperature evolution during the battery operation. In the later model, we considered different paraffin nanocomposites structures made by the addition of graphene, carbon nanotubes, and fullerene by assuming the same thermal conductivity for all fillers. This way, our results mainly correlate with the geometry of the fillers. Our results assess the degree of enhancement in heat dissipation of Li-ion batteries through the use of paraffin nanocomposites. Our results may be used as a guide for experimental set-ups to improve the heat management of Li-ion batteries.
ISSN:1687-4110
1687-4129
DOI:10.1155/2016/2131946