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Carbon and Graphene Coatings for the Thermal Management of Sustainable LMP Batteries for Automotive Applications

The increment of battery temperature during the operation caused by internal heat generation is one of the main issues to face in the management of storage systems for automotive and power generation applications. The temperature strongly affects the battery efficiency, granting the best performance...

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Autores principales: Sequino, Luigi, Sebastianelli, Gaetano, Vaglieco, Bianca Maria
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9658950/
https://www.ncbi.nlm.nih.gov/pubmed/36363335
http://dx.doi.org/10.3390/ma15217744
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author Sequino, Luigi
Sebastianelli, Gaetano
Vaglieco, Bianca Maria
author_facet Sequino, Luigi
Sebastianelli, Gaetano
Vaglieco, Bianca Maria
author_sort Sequino, Luigi
collection PubMed
description The increment of battery temperature during the operation caused by internal heat generation is one of the main issues to face in the management of storage systems for automotive and power generation applications. The temperature strongly affects the battery efficiency, granting the best performance in a limited range. The investigation and testing of materials for the improvement of heat dissipation are crucial for modern battery systems that must provide high power and energy density. This study presents an analysis of the thermal behavior of a lithium-polymer cell, which can be stacked in a battery pack for electric vehicles. The cell is sheltered with layers of two different materials: carbon and graphene, used in turn, to dissipate the heat generated during the operation in natural convection. Optical diagnostics in the infrared band is used to evaluate the battery surface temperature and the effect of the coatings. Experiments are performed in two operating conditions varying the current demand. Moreover, two theoretical correlations are used to estimate the thermal parameters of the battery with a reverse-logic approach. The convective heat transfer coefficient h and the specific heat capacity c(p) of the battery are evaluated and provided for the Li-ion battery under investigation for different coatings’ conductivity. The results highlight the advantage of using a coating and the effect of the coating properties to reduce the battery temperature under operation. In particular, graphene is preferable because it provides the lowest battery temperature in the most intense operating condition.
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spelling pubmed-96589502022-11-15 Carbon and Graphene Coatings for the Thermal Management of Sustainable LMP Batteries for Automotive Applications Sequino, Luigi Sebastianelli, Gaetano Vaglieco, Bianca Maria Materials (Basel) Article The increment of battery temperature during the operation caused by internal heat generation is one of the main issues to face in the management of storage systems for automotive and power generation applications. The temperature strongly affects the battery efficiency, granting the best performance in a limited range. The investigation and testing of materials for the improvement of heat dissipation are crucial for modern battery systems that must provide high power and energy density. This study presents an analysis of the thermal behavior of a lithium-polymer cell, which can be stacked in a battery pack for electric vehicles. The cell is sheltered with layers of two different materials: carbon and graphene, used in turn, to dissipate the heat generated during the operation in natural convection. Optical diagnostics in the infrared band is used to evaluate the battery surface temperature and the effect of the coatings. Experiments are performed in two operating conditions varying the current demand. Moreover, two theoretical correlations are used to estimate the thermal parameters of the battery with a reverse-logic approach. The convective heat transfer coefficient h and the specific heat capacity c(p) of the battery are evaluated and provided for the Li-ion battery under investigation for different coatings’ conductivity. The results highlight the advantage of using a coating and the effect of the coating properties to reduce the battery temperature under operation. In particular, graphene is preferable because it provides the lowest battery temperature in the most intense operating condition. MDPI 2022-11-03 /pmc/articles/PMC9658950/ /pubmed/36363335 http://dx.doi.org/10.3390/ma15217744 Text en © 2022 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Sequino, Luigi
Sebastianelli, Gaetano
Vaglieco, Bianca Maria
Carbon and Graphene Coatings for the Thermal Management of Sustainable LMP Batteries for Automotive Applications
title Carbon and Graphene Coatings for the Thermal Management of Sustainable LMP Batteries for Automotive Applications
title_full Carbon and Graphene Coatings for the Thermal Management of Sustainable LMP Batteries for Automotive Applications
title_fullStr Carbon and Graphene Coatings for the Thermal Management of Sustainable LMP Batteries for Automotive Applications
title_full_unstemmed Carbon and Graphene Coatings for the Thermal Management of Sustainable LMP Batteries for Automotive Applications
title_short Carbon and Graphene Coatings for the Thermal Management of Sustainable LMP Batteries for Automotive Applications
title_sort carbon and graphene coatings for the thermal management of sustainable lmp batteries for automotive applications
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9658950/
https://www.ncbi.nlm.nih.gov/pubmed/36363335
http://dx.doi.org/10.3390/ma15217744
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