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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 appropriate solution to control the temperature changes during the operation of Li-ion batteries is to embedLithium-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.show moreshow less

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Metadaten
Document Type:Article
Author: A. H. N. Shirazi, Farzad Mohebbi, M. R. Azadi Kakavand, B. He, Timon RabczukORCiDGND
DOI (Cite-Link):https://doi.org/10.1155/2016/2131946Cite-Link
URN (Cite-Link):https://nbn-resolving.org/urn:nbn:de:gbv:wim2-20170411-31141Cite-Link
Parent Title (English):JOURNAL OF NANOMATERIALS
Language:English
Date of Publication (online):2017/04/11
Year of first Publication:2016
Release Date:2017/04/11
Publishing Institution:Bauhaus-Universität Weimar
Institutes:Fakultät Bauingenieurwesen / Institut für Strukturmechanik
GND Keyword:Batterie; Wärmeleitfähigkeit
Dewey Decimal Classification:600 Technik, Medizin, angewandte Wissenschaften / 600 Technik
BKL-Classification:53 Elektrotechnik / 53.36 Energiedirektumwandler, elektrische Energiespeicher
Licence (German):License Logo Creative Commons 4.0 - Namensnennung (CC BY 4.0)